Wire rope is a very complex machinery element which primary function is the transmission of tensile forces. Its basic constructional design allows rep

01/2004 PYTHON HIGH PERFORMANCE WIRE ROPE 04 Selection Removal Criteria Constructions Specifications 1 02-896-5656 www.osc.co

Wire rope is a very complex machinery element which primary function is the transmission of tensile forces. Its basic constructional design allows repeated changes in the direction of pull through reeving systems incorporating drums and sheaves. General purpose rope constructions are standardized in national (ASTM, CSA) and international standards (ISO). However, the increasing demand for higher breaking strength, greater flexibility, better rotation resistance, and extended rope life cannot be met by such general purpose rope constructions. The discrepancy between expectation and operating reality has led to the development of PYTHON High Performance rope constructions which, amongst other features, offer significantly improved operating life. This has been achieved through adaptation of engineered rope geometry and purpose designed manufacturing processes. WDI, located in Germany, has taken a leading role in the development of High Performance PYTHON Wire as further described in this catalogue. INDEX Application Guideline...2 Quick Reference Guide...3 Basic Information on Wire...4 Wire is a Machine...5 Wire WILL FAIL if worn-out, overloaded, misused, damaged, improperly maintained or abused. Wire rope failure may cause serious injury or death! Protect yourself and others: ALWAYS INSPECT wire rope for WEAR, DAMAGE or ABUSE BEFORE USE. NEVER USE wire rope that is WORN- OUT, DAMAGED or ABUSED. NEVER OVERLOAD a wire rope INFORM YOURSELF: Read and understand our literature REFER TO APPLICABLE CODES, STANDARDS, and REGULATIONS for INSPECTION REQUIREMENTS and REMOVAL CRITERIA. For additional information, ask your employer or your Python Distributor Wire Removal Criteria...6 Fundamentals of Inspection and Handling...7-8 Wire Strength...9 Compaction and Die-Drawing...10 Bending Fatigue Resistance...11 Rotation Resistant and Non-Rotating Wire...12 Sheaves and Drums...13 Python Super 8...14-15 Python Multi...16-17 Python HS 9...18-19 Python Ultra...20-21 Python Construct 6...22-23 Python UNI-4...24-25 Python Compac 18...26-27 Python Compac 35...28-29 Python Lift......30-31 Python Hoist......32-33 -1-2 02-896-5656 www.osc.co

Application Guideline Overhead Cranes Due to the vast variety of overhead cranes in service there is no 'standard' rope construction which would fit all types. In most cases, cranes made in North America require imperial size ropes either, Class 6x19 or 6x36 are the traditional choices. To enhance the crane performance the use of Python High Performance rope is recommended. Python wire rope can replace traditional 6-strand construction without any changes to the crane, other than making sure the sheaves and drum are in good condition. If you upgrade from a standard strength 6-strand or 6-strand diedrawn type select Python Super 8R, in either left- or right hand lay. This type matches the breaking strength requirement but will greatly outperform any traditional rope. It requires corresponding drum grooving and thus ensures the most stable rope block you can imagine. If you experienced some block twisting you want to select Python MULTI. Even slight block twisting is a constant inconvenience when you have to position a C-clamp into stacked coils, for example. Another application is where both rope ends are attached to the drum. The result is that 1/2 of the rope always spools into a incorrect drum grooving direction. Particularly 8-strand ropes without a plastic coated core (as provided by most OEM s) tend to torque resulting in loose strands and waviness. Using Python MULTI reduces and, in most cases, eliminates such problems. Because of it s very unique construction Python-MULTI does NOT require corresponding drum grooving and still has shown the highest degree of service life increase of all Python types. Some North American made overhead cranes have been converted, or can be converted, to higher lifting capacities using high strength Python SUPER 8V, Python HS-9V or Python Ultra compacted constructions. We suggest not to attempt to convert your crane without professional advice, nor to select such without consultation with your local Python Distributor. Overhead Cranes and Rotation Resistant s As a rule, Non-Rotating or Rotation Resistant rope types shall only be used if the lower sheave block tends to spin and Python Multi did not cure the problem. Generally, non-rotating ropes will have a LOWER fatigue life than standard constructions, although they seem to have 'finer' wires and appear to be more flexible. Specifically 9x17 spin resistant, 19x7, 19x19, and 24x7 rotation resistant ropes tend to break up from the inside and require frequent and careful inspections. Most of these rope types on overhead cranes are smaller sizes between 5/16" and 7/16" (between 5 mm and 11 mm). For larger diameter non-rotating ropes (> 1/2 or 13 mm) we recommend Python Lift or Python -Hoist with a plastic coated core to prevent premature internal wire breaks. Under no circumstances do we recommend Python Compac 18 for such applications. Scrap and Grab Cranes, Piledrivers These are, in essence, "wire rope destruction machines". Some users had good results with 6x19 COMPAC ropes, others prefer the simplicity of standard 6x19 ropes. For shock loading applications some users have had very god results with Python Super 8V yet there were reports also of good performance with plastic (impregnated-delete) filled rope types (BXL), PFV or Cushion ropes are some trade names). In essence, we believe that the human factor, crane design, crane location, and scope of work creates such a mix of conflicting requirements that we, as the rope supplier, can only suggest that whatever works best for YOU in YOUR specific situation is also the best rope for you. This may not be the case for the chap next door. Hoisting for Mobile Cranes Most of the smaller capacity US made cranes like Grove, Terex, P&H, Century, National, operate best with Python Compac 18. It s compacted outer rope surface is superior on multiple layer drums where traditional ropes tend to fail due to friction damages at the winding crossover points. However, Python Compac 18, when used to it s full fatigue life, tends to break up from the inside out (as all 19x7/19x19 rope do). Therefore, in high cycle applications and for some high load ratings (e.g. on Manitowoc's) Python -LIFT ropes are either already installed by the crane manufacturer, or are the recommended upgrade choice. As an alternate rope selection we recommend Python Compac 35 as this rope combines high strength, low rotation and die-drawn strands at a very attractive price. Under NO circumstances do we recommend the so called '8x19 spin resistant' rope construction. In service this type of rope WILL to break up from the inside out and when used with one end free to rotate looses up to 40% of its breaking strength. Catastrophic and unexpected rope failures are the result. Hoist on Tower Cranes For tower cranes we do not recommend the use of 19x7 or 19x19 style rope types; this includes out Python Compac18. Rotation Resistant ropes (having less than 14 outer strands) are very difficult to inspect since they tend to fatigue from the inside of the rope. Also, nearly all European tower cranes require high strength non-rotating ropes and neither 19x7 nor 19x19 types fulfill the demand on strength and/or on non-rotating properties. For the older Pecco "double sheave lower suitcase block", which is used strictly in a 2-line configuration, a regular 6x36 IWRC rope is sufficient, provided the building height is no more than 10-12 floors. Here, large line spacing prevents the block from spinning. For all other cranes we recommend Python Compac 35. For extremely high strength requirements Python Lift ropes are the choice. Linden, some Kroll- and Comedil tower cranes which have the 3- or 4 sheave arrangement in the block are 'rope killers'. The reverse bend in such systems is so severe that short rope life MUST be expected. Under NO circumstances should you use 19x7/19x19 ropes. Even if you use our Python non-rotating ropes we will NOT guarantee no bird-cages and other rope deformations as a result of such reeving systems. There have been reported sudden and unexpected rope failures. Such set ups are quick and easy to convert from a 2 part to a 4-part line but it s not ideal from a wire rope standpoint... and there is nothing we can do about it; you simply have to learn to live with it and INSPECT... INSPECT... INSPECT! 3 02-896-5656-2- www.osc.co

Quick Reference Python Super 8 Python Multi Python HS 9 Python Ultra Python Construct-6 Python UNI-4 Python Compac 18 Python Compac 35 8-strand overhead crane wire rope with a plastic coated core to increase operating life, and to provide for permanent core lubrication. Type Super 8 V is a compacted rope for increased strength. Available in left- and right hand lay. For all overhead cranes, looping- and accumulator tower applications. Developed for maximum performance on overhead cranes. This rope features a plastic coated core for extended fatigue life performance and permanent core lubrication. Python Multi is spin resistant to reduce block twisting on overhead cranes. Recommended for looping- or accumulator tower applications. All steel high strength type for overhead cranes. This rope is compacted to enhance abrasion characteristic and to reduce sheave- and drum wear. Up to 40% strength increase over standard 6-strand constructions. Ultra high strength type mainly used as high fatigue resistant rope for engineered cable assemblies. Up to 55% strength increase over standard 6-strand constructions. Sensitive to introduced rotation so call before you select this rope for overhead crane applications. High strength standard 6-strand rope for applications which require a crush resistant rope to be used on multiple layer winding systems.it has also shown remarkable performance gains as main hoist rope on port container cranes and on some overhead crane applications. Very robust 4-strand wire rope which is compacted resulting in flat outer strands for increased abrasion resistance. This rope is spinresistant and is used as hoisting rope for bulk ship cranes as well as on heavy duty construction equipment like pile drivers. Due to a larger number of individual wires it is more flexible than 19x7. The entire rope is compacted to provide for better drum spooling and less core abrasion. Recommended for Grove, Terex-, Century- Link-Belt-, and National cranes. NOT to be used with a swivel. Recommended to be used on tower- and european type mobile cranes. Available in leftand right hand lay as well as in regular- and lang's lay constructions. Recommended to be used in single line applications. ALLOWED to be used with a swivel. Python Hoist Python Lift Fatigue resistant non-rotating rope. Compacting increases strength and sheave contact area. The plastic coated core increases fatigue life and prevents premature inner wire breaks as well as providing for permanent core lubrication. ALLOWED to be used with a swivel. High strength super flexible true non-rotating rope. Oval outer strands provide for excellent sheave and drum contact area. Lift has very successfully been used in multiple drum layer applications. Needs special attention during installation. ALLOWED to be used with a swivel. -3-4 02-896-5656 www.osc.co

Basic Information Some Information every user should know about use and care of wire rope. What follows is a brief outline of the basic information required to safely use wire rope. 1. Wire rope WILL FAIL IF WORN OUT, OVERLOADED, MISUSED, DAMAGED, or IMPROPERLY MAINTAINED. 2. In service, wire rope loses strength and work capability. Abuse and misuse increase the rate of loss. 3. The MINIMUM BREAKING STRENGTH of wire rope applies ONLY to a NEW, UNUSED rope. 4. The Minimum Breaking Strength should be considered the straight line pull with both rope ends fixed to prevent rotation, which will ACTUALLY BREAK a new, UNUSED, rope. The Minimum Breaking Strength of a rope should NEVER BE USED AS ITS WORKING LOAD. 5. To determine the working load of a wire rope, the MINIMUM or NOMINAL Breaking Strength MUST BE REDUCED by a DESIGN FACTOR (formerly called a Safety Factor). The Design Factor will vary depending upon the type of machine and installation, and the work performed. YOU must determine the applicable Design Factor for your use. For example, a Design Factor of 5" means that the Minimum- or Nominal Breaking Strength of the wire rope must be DIVIDED BY FIVE to determine the maximum load that can be applied to the rope system. Design Factors have been established by OSHA, by ANSI, by ASME and similar government and industrial organizations. No wire rope should ever be installed or used without full knowledge and consideration of the Design Factor for the application. 6. WIRE ROPE WEARS OUT. The strength of a wire rope slightly increases after the break-in period, but will decrease over time. When approaching the finite fatigue life span, the breaking strength will sharply decrease. Never evaluate the remaining fatigue life of a wire rope by testing a portion of a rope to destruction only. An in depth rope inspection must be part of such evaluations. 7. NEVER overload a wire rope. This means NEVER use the rope where the load applied is greater than the working load determined by dividing the Minimum Breaking Strength of the rope by the appropriate Design Factor. 8. NEVER SHOCK LOAD a wire rope. A sudden application of force or load can cause both visible external damage (e.g. birdcaging) and internal damage. There is no practical way to estimate the force applied by shock loading a rope. The sudden release of a load can also damage a wire rope. 9. Lubricant is applied to the wires and strands of a wire rope when manufactured. This lubricant is depleted when the rope is in service and should be replaced periodically. 10. Regular, periodic INSPECTIONS of the wire rope, and keeping of PERMANENT RECORDS SIGNED BY A QUALIFIED PERSON, are required by OSHA and other regulatory bodies for almost every rope installation. The purpose of inspection is to determine whether or not a wire rope may continue to be safely used on that application. Inspection criteria, including number and location of broken wires, wear and elongation, have been established by OSHA, ANSI, ASME and other organizations. IF IN DOUBT, REPLACE THE ROPE. Some inspection criteria on rope, sheaves and drums are outlined further in this brochure. 11. When a wire rope has been removed from service because it is no longer suitable, IT MUST NOT BE RE- USED ON ANOTHER APPLICATION. 12. Every wire rope user should be aware of the fact that each type of fitting attached to a wire rope has a specific efficiency rating which can reduce the working load of a rope assembly or rope system, and this must be given due consideration in determining the capacity of a wire rope system. 13. Some conditions that can lead to problems in a wire rope system include: Sheaves that are too small, worn or corrugated can cause damage to a wire rope. Broken wires mean a loss of strength. Kinks permanently damage a wire rope. Environmental factors such as corrosive conditions and heat can damage a wire rope. Lack of lubrication can significantly shorten the useful service life of a wire rope. Contact with electrical wire and the resulting arcing will damage a wire rope. The above is based on the Wire Safety Bulletin published by the WIRE ROPE TECHNICAL BOARD. 5 02-896-5656-4- www.osc.co

Basic Information Wire is a Machine A wire rope is a machine, by dictionary definition:"an assemblage of parts...that transmit forces, motion, and energy one to another in some predetermined manner and to some desired end. A typical wire rope may contain hundreds of individual wires which are formed and fabricated to operate at close bearing tolerances one to another. When a wire rope bends, each of its many wires slides and adjusts in the bend to accommodate the difference in length between the inside and the outside bend. The sharper the bend, the greater the movement. Every wire rope has three basic components: (1) The wires which form the strands and collectively provide rope strength; (2) The strands, which are helically around the core; and, (3) The core, which forms a foundation for the strands. The core of wire rope is an Independent Wire Core (IWRC), which is actually a rope in itself. The IWRC in Python rope provides between 10% and 50% (in non-rotating constructions) of the wire rope s strength. The greatest difference in wire ropes are found in the number of strands, the construction of strands, the size of the core, and the lay direction of the strand versus the core. The wires of wire rope are made of high-carbon steel. These carbon steel wires come in various grades. The term Grade is used to designate the strength of the wire rope. Wire ropes are usually made of Extra Improved Plow Steel (EIPS) or Extra Extra Improved Plow Steel (EEIPS) One cannot determine the Grade of a wire rope by its feel or appearance. To properly evaluate a rope grade you must obtain the Grade from your employer or rope supplier. Right Regular Lay RRL Left Regular Lay LRL Right Lang Lay RLL Left Lang Lay LLL 6 02-896-5656-5- www.osc.co

Fundamentals of Wire Inspection When to replace wire rope based on number of broken wires Table A) Number of broken wires in Running s Number of broken wires in Standing s Standard Equipment In one Lay In one Strand In one Strand At End Connection ASME/B30.2 Overhead & Gantry Cranes 12** 4 Not specified ASME/B30.4 Portal, Tower & Pillar Cranes 6** 3 3 2 ASME/B30.5 Crawler, Locomotive & Truck Cranes, Rotation Resistant Retirement criteria based on number of broken wires found in a length of wire rope equal to 6 times rope diameter- 2 broken wires maximum, and 30 times rope diameter- 4 broken wires maximum Running 6** 3 3 2 ASME/B30.6 Derricks 6** 3 3 2 ASME/B30.7 Base Mounted Drum Hoists 6** 3 3 2 ASME/B30.8 Floating Cranes & Derricks 6** 3 3 2 ASME/B30.16 Overhead Hoists 12** 4 Not specified ANSI/A10.4 Personnel Hoists 6** 3 2** 2 ANSI/A10.5 Material Hoists 6** Not specified Not specified ** Also remove for 1 valley break (see next page for further information) Removal and possible Cause Fault Possible Cause Fault Possible Cause Accelerated Wear Rapid Appearance of Broken Wires Corrosion Kinks Excessive localized Wear Severe abrasion from being dragged over the ground or obstructions. not suitable for application. Poorly aligned sheaves. Large fleet angle. Worn sheave with improper groove, size or shape. Sheaves and rollers have rough wear surface. Stiff or seized sheave bearings. High bearing and contact pressures. Sheaves/drum too small. not suitable for application. Reverse bends. Sheaves/drums too small. Overload and shock loads. Excessive rope vibration. Kinks that have formed and have been straightened out. Crushing and flattening of the rope. Sheave wobble. Inadequate lubrication. Improper storage. Exposure to acids or alkalis. Improper installation. Improper handling. Slack rope pulled tight. Drum crushing. Equalizer Sheave. Vibration. Stretch Broken Wires near Fitting Sheaves/Drums Wear out Pinching, Crushing, oval Shape Unlays (Opens up) Reduction in Diameter Bird Cage Core Protrusion Overload. Passed normal stretch and approaches failure. Vibration. Fittings get pulled too close to sheave or drum. Material too soft Sheaves grooves too small. Not following proper installation and maintenance procedure on multiple layer drums Wrong rope construction. end attached to swivel. Broken core. Overload. Internal wear. Corrosion. Tight Sheaves. is forced to rotate around its own axis. Shock loads. Improper Wedge Socket installation. Shock loading. Disturbed rope lay. unlays. Load spins and rotates rope around its own axis. 7 02-896-5656-6- www.osc.co

Fundamentals of Wire Inspection and Handling Wire Inspection An inspection should include verification that none of these removal criteria are met by checking for such things as: - Surface wear, normal and unusual - Broken wires: Number and location - Reduction in diameter - stretch (elongation) - Integrity of attachments - Evidence of abuse or contact with other objects - Heat damage - Corrosion See Table A on the previous page for maximum allowable wire breaks causing discard of the rope. Under normal operating conditions individual wires will break due to material FATIGUE. Such breaks are usually located at the CROWN of a strand. ALL wire rope removal criteria are based on CROWN wire breaks. Remove the rope from service even if you find a SINGLE individual wire break which originates from inside of the rope. These so called VALLEY breaks have shown to be the cause for unexpected complete rope failures. Inspection of Sheaves Sheave groove matches rope Sheave groove too small Sheave groove worn out New rope will be damaged Check for worn and corrugated sheaves Handling of Wire Right Right Wrong Wrong For a complete discussion on Handling, Installation, Inspection, and Maintenance of Wire, please ask for our separate Catalogue 8 02-896-5656-7- www.osc.co

Fundamentals of Wire Inspection and Handling Measuring Wire Design specification for wire rope are such that the diameter is slightly larger than the nominal size as shown in the catalogue. The allowable tolerances are: 1/8" -0 / +8% > 1/8" 3/16" -0 / +7% > 3/16" 5/16" -0 / +6% > 5/16" -0 / +5% Python wire rope is produced with an allowable oversize tolerance of only 4%, all others have an allowable 5% oversize tolerance. When put into service the wire rope diameter slightly decreases when first loaded. A further reduction in wire rope diameter indicates wear, abrasion, or core deterioration. Right Wrong Allowable Oversize Tolerance Nominal Diameter inch 3/8 7/16 1/2 9/16 5/8 3/4 7/8 1 1-1/8 1-1/4 1-3/8 1-1/2 1-5/8 1-3/4 1-7/8 2 5% Diameter Tolerance Maximum Diameter inch.395.46.525.590.65.79.92 1.05 1.18 1.31 1.44 1.58 1.71 1.84 1.97 2.10 Nominal Diameter mm 10 11 12 14 15 16 18 20 22 24 26 28 30 32 34 36 Maximum Diameter mm 10.5 11.5 12.6 14.7 15.7 16.8 18.9 21 23.1 25.2 27.3 29.4 31.5 33.6 35.7 37.8 Wire Lay Direction Be sure to use the correct rope lay direction for the drum. This applies to smooth, as well as to grooved drums. In some applications it may be advisable to select the rope lay direction according to the most frequently used drums layers. If the first rope layer is used as a guide layer only, it is advisable to select the rope lay direction according to the second layer. Overwind from left to right: Use Right Hand Underwind from right to left: Use Right Hand Left Hand Grooved: Use Right Hand If you are in doubt about this issue, give us a call and we will be happy to assist you. Overwind from right to left: Use Left Hand Underwind from left to right: Use Left Hand Right Hand Grooved: Use Left Hand -8-9 02-896-5656 www.osc.co

Wire Construction Strength The breaking strength of wire rope can be increased in two ways: either by increasing the wire material TENSILE STRENGTH or by increasing the rope s FILL FACTOR. TENSILE STRENGTH The wires of wire rope are made of high-carbon steel. These carbon steel wires come in various grades. Wire ropes are usually made of Extra Improved Plow Steel (EIPS) or Extra Extra Improved Plow Steel (EEIPS) which roughly equivalents to a wire tensile strength of 1960N/mm 2 and 2160N/mm 2. As one can see from the tables in this catalogue the difference in the rope s breaking strengths by increasing the material tensile strength is only about 10%. 100 % FILL FACTOR In order to further increase the breaking strength of wire rope one has to increase the rope s fill factor. The fill factor measures the metallic cross section of a rope and compares this with the circumscribed area given by the rope diameter. Traditional rope constructions fill the rope diameter only up to about 58% with steel. Python wire rope fill the rope diameter up to 80% with steel. That is an metallic increase of about 38% which results in a similar increase in rope strength. Two methods can be employed: Selecting a different rope CONSTRUCTION or COMPACTING/DIE DRAWING the rope/strands. 75 % 50 % 25 % Solid Steel Bar Python ULTRA Python HS 9V Python Super 8V Compac 625/636 Python MULTI Regular 6x36 IWRC Regular 6x36 FC 0 % 100 % Fill Factor of different rope constructions 75 % 50 % 25 % Solid Steel Bar Python LIFT Python HOIST Python Compac 35 Python Compac 18 34 x 7 19 x 7 0 % -9-10 02-896-5656 www.osc.c

Wire Construction Compaction and die-drawing Many of our wire ropes are made with either die-drawn strands (Python Compac 35) or the entire rope is subjected to a compaction process ( all other Python types). Here are the differences: DIE-DRAWN STRANDS This process is applied to the strands NOT to the rope. The ready made strands are forced through drawing dies which compress and shape the individual wires to have a flat outer surface. The advantages are : increased strength : less wire interlocking on multiple layer drums : less contact pressures onto sheaves and drums ROPE SWAGING This process is usually applied to wire rope which is made using the double parallel manufacturing method, or where the rope core is plastic coated. This process is applied after the rope has been manufactured and compresses individual surface wires as well as closing strand gaps. The advantages are : increased strength : transforming the entire rope into a more round shape : less wire interlocking on multiple drums : less contact pressure onto sheave and drums : embedding strands into plastic coated cores : achieve tighter diameter tolerances : reduces constructional rope stretch to near zero Standard strand wires Die-drawn strand wires Compacted strand wires -10-11 02-896-5656 www.osc.c

Wire Construction Bending Fatigue Resistance The ability of a wire rope to withstand repeated bending work over sheaves and onto drums is also called fatigue resistance. This term describes the ultimate rope life based on the maximum mechanical fatigue resistance of the wire material used. This term does NOT describe the ability to withstand mechanical damages nor the crush resistance of a wire rope. The fatigue resistance of a wire rope is not time- but cycle dependent. Bending fatigue is the ability to withstand repeated bending over sheaves and drums. The ability to withstand a certain number of bending cycles is linked to equipment related factors, such as : diameter, shape, and groove dimensions of sheaves and drums : the load the rope is subjected to : the fluctuation of highest to light loads : the line speed : rapid acceleration and braking forces : the rope construction The larger the bending radii become, the higher is the expected fatigue life. Large drums and sheaves will reduce radial rope pressures. Reverse bends in the reeving system, especially within short distances, will have a major negative impact on rope life. Service Life 6x19 Filler 8x19 Filler 9x19 Filler Research Institute for Material Handling, Institute of Technology, Stuttgart, Germany diameter: 16 mm (5/8 ) Tensile Strength: 1570 N/mm 2 Construction: Filler, IWRC D/d Ratio: 25:1 Breaking Strength: 135.7 kn Many years of monitoring rope performance in the field together with scientific research at Universities and Technical Institutes have led to the recognition that the number of outer strands in a rope is a very significant factor influencing rope service life. The number of outer strands determines the contact area between the rope and sheave groove. If this area is increased the points of contact are multiplied and abrasive wear of rope and sheave is reduced. At the same time lateral notching stresses between strands and wires are reduced, resulting in increased fatigue life. Extensive test programs at the University of Stuttgart, Germany, have proven conclusively that bending fatigue of wire rope improves with an increasing number of outer strands. Based on this research we have developed high performance wire rope with 8-, 9-, and 10 outer strands. DF 5:1-11- 12 02-896-5656 www.osc.c

Wire Construction Rotation Resistant and Non-Rotating Wire When loaded, every wire rope will develop torque; that is it has the tendency to : unlay itself unless both rope ends are secured against rotation. : cause a lower sheave block to rotate and to spin the line parts together. Rotation resistant ropes can be divided into 3 categories: Spin-Resistant, 2 layer (8 to 10 outer strands) Rotation Resistant, 2 layer (11 to 13 outer strands) Non-Rotating, 3 layer (14 or more outer strands) The characteristic of these wire ropes are that the outer layer is twisted in the opposite direction of their inner layers. The sometimes confusing issue is that many 8-9- and 10 strand constructions are 2-layer types but their inner strands are NOT twisted in the opposite direction and therefore these rope are NOT spinresistant; plus, for the untrained eye these ropes look very much alike their spin- Example of a 2-layer rotation resistant construction with 12 outer strands. (19x7) resistant variants. With one rope end allowed to spin freely these and regular 6- strand ropes will spin violently and unlay themselves when loaded. They may also develop a significant drop in breaking strength and an even larger drop in their fatigue life characteristic. As already mentioned, to achieve any degree of resisting the tendency of a rope to spin and unlay under load all such rope types (other than 4-strand ones) are constructed with 2 or more layers of opposite twisted strands. 2-layer ropes have a larger tendency to rotate than 3-layer ones (e.g. class 34x7). Furthermore, 2-layer spin-resistant and rotation resistant ropes will develop only about 55% to 75% of their breaking strength when one end is allowed to rotate freely. This number increases to between 95% to 100% for 3-layer non-rotating ropes. Another important issue is that 2-layer rotation resistant and 2-layer spin-resistant rope types have the tendency to break up from the inside. The 8 (e.g. 8x25 spinresistant) or 12 outer strands (19x7, 19x19) are not able to evenly distribute the tension- and torque forces between inner and outer strands. Furthermore, the inherent internal strand cross overs (which make the rope spin- or rotation resistant) resulting in severe notching stresses cause the rope core to break up premature (unless the core is plastic coated, e.g. Python Multi). Unexpected and sudden rope failures may be the result. Moreover, 2-layer spin-resistant or rotation resistant ropes satisfy only low to moderate rotational resistance demands. 3-layer rope constructions (e.g. class 35x7) have many more outer strands which can much better distribute the radial pressures onto the reverse lay inner strands. These ropes should be selected for larger mobile- and ALL tower cranes. -12-13 02-896-5656 www.osc.c

Wire Construction Sheaves and Drums The performance of all wire rope depends on the good condition and sufficient dimensions of sheaves and drums. Too small sheaves and drums will reduce the service life of a rope. This is more a question of performance rather than safety. The following table is based upon recommendations by the Wire Technical Board: Suggested Construction D/d ratio 19x7 / 18x7 34 6x26 WS 30 6x25 Filler, 6x31 WS, Compac 626 26 6x36 WS, Python HS9, Python Ultra 23 8x25, Python Super 8, Python Multi 20 Python Compac 35, Python Lift and Hoist 20 Recommended Sheave and Drum Contours: Groove radii minimum: o.53 to.535x d for new rope Groove radii maximum: o.55 to o.56x d Sheave Groove depth: 1.5 x d Drum Pitch for SINGLE layer minimum: 2.065 x groove radii Drum Pitch for SINGLE layer maximum: 2.18 x groove radii Drum groove depth: minimum o.375x d for helical grooved Hardness: As wire rope has a hardness of about 50-55RC we recommend that the hardness of sheaves and drums is at least 35 RC, better is 40-45 RC Sheave opening angle should be 35 to 45 for applications with fleet angles 1.5, for larger fleet angles use 60 opening. Maximum rope fleet angle for general purpose ropes should not exceed 4, for non-rotating/rotation resistant types and for Python HS-9 and Python Ultra the fleet angle should not exceed 1.5 Sheaves and Drums Multi-layer drum systems should use diedrawn (Python Compac 35) or type V Python rope constructions having a steel core. The higher fill factor of such rope constructions ensure a greater resistance to crushing and flattening than conventional rope types. This is particularly important for boom hoist ropes on lattice boom cranes at the cross over point from one rope winding to the next. Cranes equipped with multi-layer drum systems which require rotation-resistant or non-rotating rope are best served with Python Compac 35 or Python Lift rope constructions as these have a smooth outer surface allowing the rope to better glide from one winding into the next. To further reduce drum crushing have the first rope layer wound onto the drum with about 5-10% of the WLL and avoid that this first layer unspools and re-spools without tension. This would cause a soft bottom layer which will flatten rather quickly. Python ropes also help reduce strand interlocking which normally occurs at adjacent rope wraps. This is caused by too large of fleet angles as well as is the cause of multiple layer windings on smooth (ungrooved) drums. All Python ropes have a smooth and very round outer rope surface which helps to minimize abrasive wear due to strand-tostrand contacts. For further information please refer to our Catalogue Handling Procedures. -13-14 02-896-5656 www.osc.c

Wire Python Super 8 for Overhead Cranes Shown is Super 8 V (compacted) 8-strand fatigue resistant construction compacted design to increase strength (Type V) flat outer wires for optimum sheave contact (Type V) plastic coated core helps prevent inner wire breaks permanent lubricated core Main Applications: Super-8 is the classic 'upgrade' rope for all overhead crane types to increase the rope's fatigue life. The 8-strand construction provides an excellent combination of flexibility, fatigue life, and abrasion resistance. Also used in looping- or accumulator tower applications. Available in right regular lay (RRL) AND left regular lay (LRL) Characteristic: 8-strand high performance overhead crane wire rope with a plastic coated core. This special engineered hard plastic prevents metal to metal contact between outer- and inner strands and greatly reduces internal, non-detectable, wear and abrasion resulting in increased fatigue life, plus it provides for permanent core lubrication. Type 'V' is compacted for increased surface contact area between rope and sheave thus reducing sheave and drum wear. Super 8 is up to 30% stronger than regular 6-strand EIPS ropes. Check listings for details. Python Super 8 is NOT rotation resistant or non-rotating Standard: DIN 2078/3051 where applicable Do NOT use Python Super 8 wire rope attached to a swivel. The rope WILL unlay resulting in an unsafe condition. Block Twisting (Cabling) will occur when used exceeding certain lifting heights. Call for advice -14-15 02-896-5656 www.osc.c

Wire Breaking Strengths Note: The maximum CAPACITY, WORKING LOAD LIMIT (WLL), or LINE PULL of the rope usually is 1/5 of the below stated values. For specific information consult the standards applicable to your rope application. Python Super 8 Overhead Crane Wire Construction: 8 x 25 Filler 8-strand overhead crane wire rope with a plastic coated core to prevent inner undetectable fatigue breaks. The plastic coating also increases fatigue life and ensures permanent core lubrication. Type Super V is a compacted rope for better abrasion resistance and increased strength. Python Super-8 is available in right- and in left lay configurations to adopt to the corresponding drum groove direction. Furthermore, using right- and left hand rope on the same crane results in a rope system which is very stable against block twisting. inch 7/16 1/2 9/16 5/8 3/4 7/8 1 1-1/8 1-1/4 1-3/8 1-1/2 1-5/8 Imperial Python Super 8 Minimum Strength tons of 2000 lbs Super 8 R Super 8 V Super 8 V EIPS 10.3 13.7 17.4 21.7 30.6 41.1 54.8 69.4 86.9 103.4 122.6 144.8 EIPS 15.1 19.1 23.9 33.7 45.2 60.3 76.4 95.7 113.8 134.9 159.4 EEIPS 16.6 21.1 26.4 37.2 49.9 66.5 84.2 105.5 125.5 148.7 175.7 Weight per foot lbs*.29.47.59.74 1.05 1.40 1.87 2.37 2.97 3.53 4.19 4.95 6-strand 8-strand 1-3/4 164.4 180.9 199.4 5.61 Metric Python Super 8 The 8-strand construction provides an increase in contact points between rope and sheave. Less wear of the rope and of your equipment. mm Minimum Strength in kn Super 8 R Super 8 V Super 8 V 1960 N/mm 2 1960 N/mm 2 2160 N/mm 2 Weight per mtr kgs* 10 11 12 75.6 91.4 108.8 119.8 132.0.43.52.62 13 14 15 127.7 148.1 170.0 140.6 163.0 187.1 154.9 179.6 206.2.73.84.97 16 17 18 193.4 218.4 244.8 212.9 240.4 269.5 234.6 264.9 297.0 1.10 1.25 1.40 19 20 22 272.8 302.2 365.7 300.2 332.7 402.5 330.9 366.6 443.6 1.56 1.72 2.09 24 26 28 435.2 510.8 592.4 479.0 562.2 652.0 527.9 619.6 718.6 2.48 2.91 3.38 30 32 34 680.1 773.8 873.5 748.5 851.6 961.4 824.9 938.5 1059.5 3.88 4.41 4.98 36 979.3 1077.9 1187.8 5.59 *Weights for Super 8V: Add approximately 10% 38 1091.1 1200.9 1323.5 6.22 16-15- 02-896-5656 www.osc.c

Wire Python Multi Hoisting Applications 10-strand fatigue resistant construction compacted design for a smooth outer surface flat outer wires for optimum sheave contact plastic coating SHIELDS reverse lay core preventing direct contact between outer- and inner strands thus preventing premature inner rope failures Reverse lay core minimizes block twisting 6-strand The 10-strand construction provides an increase in contact points between rope and sheave. Less wear of the rope and of your equipment. 10-strand Main Applications: 10-strand high performance wire rope for overhead cranes as well as some truck- and container cranes. Special spin-resistant feature prevents much of the unwanted block twisting on overhead cranes. Characteristic: The core is plastic coated to prevent metal to metal contact between inner- and outer strands and greatly reduces internal, undetectable, wear and abrasion. Also, the core is twisted in the opposite direction of the outer strands making this rope spinresistant and therefore ideal for cranes where both rope ends are attached to the drum. Multi is a compacted rope to reduce initial rope stretch and to increase the outer strand contact area to sheaves and drum. 10 outer strands distribute the load pressures more equally thus reducing wear of the rope and your equipment. Compared to 6-strand ropes Multi has increased service life in many cases up to 5 times and more. Python Multi is SPIN RESISTANT but NOT rotation resistant or non-rotating. Used where these demands are low or moderate. Proper and sufficient line spacing is required. Standard: DIN 2078/3051 where applicable Do NOT use Python Multi wire rope attached to a swivel. The rope WILL unlay resulting in an unsafe condition. Block Twisting (Cabling) will occur when used exceeding certain lifting heights. Call for advice -16-17 02-896-5656 www.osc.c

Wire Breaking Strengths Note: The maximum CAPACITY, WORKING LOAD LIMIT (WLL), or LINE PULL of the rope usually is 1/5 of the below stated values. For specific information consult the standards applicable to your rope application. 10-Strand Hoisting Wire Construction: 10 x 19 Developed for maximum performance on overhead cranes. This rope features a plastic coated core for extended fatigue life performance and permanent core lubrication. Python MULTI is spin resistant to reduce block twisting on overhead cranes. Also recommended for looping- or accumulator tower applications. inch 1/2 9/16 5/8 3/4 7/8 1 Imperial Python MULTI Minimum Strength tons of 2000 lbs MULTI MULTI* EIPS 13.7 17.4 21.8 30.7 41.1 54.8 EEIPS 15.1 19.2 24.0 33.8 45.4 60.5 Weight per foot lbs.48.61.77 1.08 1.45 1.93 Fatigue Life Comparison Example:... 5/8 Sheave dia... 15-3/4 Sheave opening... 60 degree tension at DF 5:1 for a 6-strand rope 8x25 Filler 10 strand Multi 1-1/8 1-1/4 1-3/8 1-1/2 1-3/4 69.4 87.0 103.7 122.7 164.6 76.5 96.0 114.3 135.3 181.4 2.44 3.06 3.65 4.32 5.79 6x25 Filler Python MULTI ropes in EEIPS or 2160 N/mm 2 are NOT available from stock mm Metric Python MULTI Minimum Strength in kn MULTI MULTI* 1960 N/mm 2 2160 N/mm 2 Weight per mtr kgs* 13 14 15 127.9 148.3 170.2 140.9 163.4 187.6.75.87 1.00 16 18 20 193.7 245.1 302.6 213.4 270.1 333.5 1.14 1.44 1.78 22 24 26 366.2 435.8 511.4 403.5 480.2 563.9 2.15 2.56 3.01 28 30 32 593.1 680.9 774.7 653.7 750.4 853.8 3.49 4.01 4.56 34 36 38 874.6 980.5 1092.5 963.8 1080.5 1204.0 5.14 5.77 6.43 40 42 44 1210.5 1334.5 1464.5 1334.0 1470.5 1614.0 7.12 7.85 8.62-17- 18 02-896-5656 www.osc.c

Wire Python HS-9 High Strength Hoisting Up to 7/8 9-strand fatigue resistant high strength construction compacted design to increase strength flat outer wires for optimum sheave contact (type V) inner strands are laid parallel to the outer strands to avoid any strand cross-overs and premature wire nicking 1 and up 6-strand The 9-strand construction provides an increase in contact points between rope and sheave. Less wear of the rope and of your equipment. 9-strand Main Applications: Super high strength yet super flexible overhead crane wire rope. Used as original equipment rope and for crane capacity upgrades. Also used as high strength engineered assembly cable for tension applications. Type V has little to no initial constructional stretch. Sizes 11mm and 14 mm in left lay are original equipment ropes for some DEMAG crane types. Characteristic: HS-9 V is compacted to enhance the abrasion characteristic and to reduce sheave- and drum wear. Type HS-9V in combination with EEIPS (2160 N/mm 2 ) wire tensile grades increases rope strength of up to about 50% over regular strength 6-strand types. HS-9 is constructed from a total of up to 358 single wires compared to 265 single wires in traditional 6x36 wire rope. This results in a super strong yet super flexible rope. Although HS-9 is our most successful high strength rope construction there are precautions we must address before you select this rope. One is that the direction of lay which must correspond to drum grooving, the other is that large fleet angles may cause high strands or core protrusion because the rope will roll rather than glide into the sheave groove. Any introduction of torque into (any) wire rope will cause structural damages. Python HS-9 is NOT rotation resistant or non-rotating Standard: DIN 2078/3051 where applicable Do NOT use Python HS-9 wire rope attached to a swivel. The rope WILL unlay resulting in an unsafe condition. Block Twisting (Cabling) will occur when used exceeding certain lifting heights. Call for advice -18-19 02-896-5656 www.osc.c

Wire Breaking Strengths Note: The maximum CAPACITY, WORKING LOAD LIMIT (WLL), or LINE PULL of the rope usually is 1/5 of the below stated values. For specific information consult the standards applicable to your rope application. 9-Strand High Strength Crane Wire Construction: 9 x 19 Seale (up to7/8 ) 9 x 25 Filler (1 and up) inch Imperial Python HS-9 Minimum Strength tons of 2000 lbs HS-9 R EIPS HS-9 V EIPS HS-9 V EEIPS Weight per foot lbs* High strength rope type. Type V is extra compacted. Core is parallel laid to minimize strand nicking. Up to 40% strength increase over standard 6- strand constructions. Requires corresponding drum groove direction. OEM rope on some DEMAG cranes. Ask us for details HS-9 V EEIPS 7/16 1/2 9/16 5/8 3/4 7/8 1 1-1/8 1-1/4 12.1 16.1 20.4 25.6 36.1 49.2 65.6 83.2 104.2 -- 17.5 22.2 27.8 39.2 52.6 70.1 88.8 111.2 -- 19.3 24.5 30.6 43.2 57.9 77.2 97.9 122.5.40.53.67.84 1.19 1.58 2.10 2.66 3.33 Strength Comparison Compac 6 EIPS HS-9 R EIPS HS-9 V EIPS 1-3/8 1-1/2 1-5/8 1-3/4 123.9 146.9 173.6 197.0 132.3 156.8 185.2 210.2 145.7 172.8 204.1 231.6 3.96 4.70 5.55 6.30 6x36 EIPS Metric Python HS-9 mm Minimum Strength in kn HS-9 R HS-9 V HS-9 V 1960 N/mm 2 1960 N/mm 2 2160 N/mm 2 Weight per mtr kgs* 10 11 12 89.0 107.7 128.1 139.1 -- -- 153.3.49.59.71 13 14 15 150.4 174.4 200.2 163.3 189.4 217.4 180.0 208.7 239.6.83.96 1.10 16 17 18 227.8 257.2 288.3 247.4 279.3 313.1 272.6 307.8 345.0 1.26 1.42 1.59 19 20 22 321.2 355.9 438.3 348.8 386.5 467.7 384.4 426.0 515.4 1.77 1.96 2.34 Python HS-9 is available in right- and left hand lay. Ask for availability from stock. 24 26 28 521.6 612.1 709.9 556.6 653.2 757.6 613.4 719.9 834.9 2.79 3.27 3.79 30 32 34 815.0 927.3 1047.0 869.7 989.5 1117.0 958.4 1090.4 1231.0 4.36 4.96 5.60 (1) Weights for PYTHON- HS 9 V: add approx. 10% 36 1173.5 1252.3 1380.1 6.27 EEIPS and 2160 N/mm 2 are non-stock items 38 1307.5 1395.3 1537.7 6.99-19- 20 02-896-5656 www.osc.c

Wire Python Ultra for engineered applications Up to 3/4 Python Ultra is available in rightand left hand lay. Ask for availability from stock. 10-strand fatigue resistant ULTRA high strength rope compacted design to increase strength MaxFlat compression for optimum sheave contact parallel inner-to-outer strand design increases fatigue life Main Applications: Super high strength wire rope mainly used for engineered cable assemblies, counterweight ropes, winch lines, boom pendants, extension- and retraction cables, etc. Overhead crane applications for sizes above 3/4" (19 mm) may require some restrictions as to fleet angle and lay direction. Call before you select this rope. 7/8 and up Python Ultra when fabricated into a Uni-Loc Cable Assembly Characteristic: Python -Ultra is our highest strength rope available. It is fully compacted resulting in an extreme smooth outer rope surface and the removal of nearly all of the constructional stretch. This is an important feature if you require a low stretch rope for cables assemblies. Ultra is an 'all parallel' construction type, meaning that there are no wire cross-overs within the rope body to ensure maximum fatigue life. Ultra provides a strength increase of up to 53% over regular 6-strand constructions. Refer to the conservatively calculated strength tables. Python -Ultra requires corresponding drum grooving directions; e.g. use a right hand lay rope if the drum is left hand grooved. Large fleet angles may cause high strands or core protrusion because the rope will roll rather than glide into the sheave groove. Any introduction of torque into (any) wire rope will cause structural damages. Python Ultra is NOT rotation resistant or non-rotating Standard: DIN 2078/3051 where applicable Do NOT use Python Ultra wire rope attached to a swivel. The rope WILL unlay resulting in an unsafe condition. Block Twisting (Cabling) will occur when used exceeding certain lifting heights. Call for advice -20-21 02-896-5656 www.osc.c

Wire Breaking Strengths Note: The maximum CAPACITY, WORKING LOAD LIMIT (WLL), or LINE PULL of the rope usually is 1/5 of the below stated values. For specific information consult the standards applicable to your rope application. 10-Strand Ultra High Strength Wire Construction: 10 x 19 Seale (up to 3/4 ) 10 x 25 Filler (7/8 and up) inch Imperial Python - Ultra Minimum Strength tons of 2000 lbs ULTRA ULTRA EIPS EEIPS Weight per foot lbs Ultra high strength type mainly used as high fatigue resistant rope for engineered cable assemblies. Up to 55% strength increase over standard 6-strand constructions. Sensitive to introduced rotation so call before you select this type of rope for overhead crane applications. Characteristic: : Ultra High Strength : All steel, parallel construction : Flexible 10 outer strand type : Fully compacted : Smooth rope surface : High fatigue resistant 1/2 9/16 5/8 3/4 7/8 1 1-1/8 1-1/4 1-3/8 1-1/2 1-5/8 1-3/4 1-7/8 18.0 22.8 28.5 40.2 53.9 71.9 91.1 114.1 135.7 160.9 190.0 215.7 252.4 19.8 25.1 31.4 44.3 59.4 79.2 100.5 125.8 149.6 177.3 209.5 237.8 278.3.59.74.93 1.31 1.73 2.31 2.93 3.66 4.36 5.17 6.10 6.93 8.11 mm Metric Python - Ultra Minimum Strength in kn ULTRA ULTRA 1960 N/mm 2 2160 N/mm 2 Weight per mtr kgs Typical application of Python Ultra as Retraction- and Extension cables inside mobile crane booms. 12 13 14 15 16 17 142.8 167.6 194.4 223.1 253.9 286.6 157.4 184.7 214.2 245.9 279.8 315.9.78.91 1.06 1.22 1.38 1.56 18 19 20 321.3 358.0 396.7 354.1 394.6 437.2 1.75 1.95 2.16 22 24 26 480.0 571.3 670.4 529.0 629.5 738.8 2.57 3.06 3.60 28 30 32 777.5 892.6 1015.6 856.9 983.7 1119.2 4.17 4.79 5.45 34 36 38 40 1146.5 1285.3 1432.1 1586.8 1263.5 1416.5 1578.2 1748.7 6.15 6.89 7.68 8.51 42 44 46 48 1749.5 1920.0 2098.6 2285.0 1928.0 2116.0 2312.7 2518.2 9.38 10.30 11.26 12.26-21- 22 02-896-5656 www.osc.c

Wire Python Construct-6 Boom Hoist- and Overhead Crane 6-strand crush resistant high strength rope compacted design to increase strength MaxFlat compression for optimum sheave contact Up to 7/8-24 mm 6 F-V 1-26 mm and up 6 WS-V Python Construct-6 types are available in right- and left hand lay. Ask for availability from stock. Boom Hoist Main Applications: High strength standard 6-strand rope for applications which require a crush resistant rope to be used on multiple layer winding systems; e.g. boom hoist on lattice boom mobile- and tower cranes. This rope has also shown remarkable performance gains as main hoist rope on port container cranes and on some overhead crane applications. Characteristic: Python Construct-6 is a swaged rope which is constructed from specialty made engineered and sized 6-strand wire rope. The basic wire rope is already manufactured with purpose intend to be compacted (or swaged) into the finished product. The degree of compacting is carefully selected to ensure the best compromise between crush- and fatigue resistance. The strength increase compared to standard 6-strand ropes varies between about plus 10% to 35% depending on rope diameter. Python Construct-6 is available as a 25 wire (6 F-V) or 36 wire (6WS-V) construction, in left- and right lay, bright or galvanized. Choose 6 F-V as Boom Hoist rope, 6 WS-V for single layer drum hoisting. Because of the compacting process most of the rope s initial stretch (constructional stretch) has already been removed. Python Construct-6 is NOT rotation resistant or nonrotating Standard: DIN 2078/3051 where applicable. Do NOT use Python Construct-6 wire rope attached to a swivel. The rope WILL unlay resulting in an unsafe condition. Block Twisting (Cabling) will occur when used exceeding certain lifting heights. Call for advice -22-23 02-896-5656 www.osc.c

Wire Breaking Strengths Note: The maximum CAPACITY, WORKING LOAD LIMIT (WLL), or LINE PULL of the rope usually is 1/5 of the below stated values. For specific information consult the standards applicable to your rope application. 6-strand compacted wire rope Construction: 6 F-V (up to 7/8 or 24 mm) 6 WS-V (1 / 26 mm and up) 6-strand rope with flat outer wire surface resisting drum crushing and aiding in better multiple layer spooling. Compacting removes most of constructional stretch. inch 5/16 7/16 1/2 Imperial Python Nominal Strength in tons of 2000 lbs EIPS 7.5 13.1 17.6 Construct-6 Weight per foot lbs.25.44.59 9/16 5/8 3/4 7/8 1-1/8 1-1/4 20.1 25.8 35.2 45.9 70.9 94.8.68.87 1.18 1.55 2.37 3.15 mm Metric Python Construct-6 Minimum Strength 1960 N/mm 2 kn tons of 2000 lbs Weight per mtr kgs Boom Hoist Applications 8 9 10 67.1 82.2 98.3 7.5 9.2 11.0.37.46.55 11 12 13 116.2 135.6 156.3 13.1 15.2 17.6.65.76.87 14 15 16 178.5 202.5 229.9 20.1 22.8 25.8 1.01 1.13 1.29 Boom and Main Hoist s 18 19 20 283.1 313.0 342.9 31.8 25.2 38.5 1.59 1.75 1.91 22 24 26 408.6 481.2 561.0 45.9 54.1 63.1 2.30 2.70 3.16 28 30 32 631.2 737.4 843.4 70.9 82.9 94.8 3.52 4.10 4.68 34 36 952.6 1061.8 107.1 119.3 5.34 6.03 Overhead Crane Applications -23-24 02-896-5656 www.osc.c

Wire Python UNI-4 4-strand crush- and rotation resistant UNI-4 4 outer rope strands with fiber core 40 wire parallel strand construction Complete rope is compacted resulting in oval shaped outer strands increased surface area for better contact and durability Main Applications: Python UNI-4 was developed for ship cranes using bulk grabs to unload coal, iron ore, and other abrasive bulk loads. Moreover, it has shown it s superior feature of crush resistance when used with many other tough loads like logs which tends to easily crush normal wire rope. Because of it s crush resistance it is also used on pile drivers and other heavy duty construction equipment which requires a crush resistant rope for multiple layer windings, even on smooth drums. Characteristic: The geometry of ropes which have 4 outer strands results in a somewhat rotation resistant characteristic. The main reason being is that the physical lever arm length from the center of each strand to the center of the rope becomes shorter the less outer strands a rope has; such shorter lever arms results is less torque. Other reasons why this rope is rotation resistant is the regular lay construction coupled with a longer than normal rope lay length. On the other hand such a construction is relatively stiff; not only because of the 4-strands but also because of the longer lay length. We do combat that in that we insert a fiber core into each of the 4 strands and that each strand has 40 wires. This is somewhat of compromise between good crush resistance, attained rope strength, and acceptable flexibility. It s rotation resistant characteristic is not all that great but is sufficient for most ship crane applications. Strength loss when used with a load bearing swivel is acceptable but we strongly recommend to use this rope with a positioning swivel only (not having roller- or ball bearings). Do NOT use Python UNI-4 wire rope attached to a swivel or have one or both rope ends rotate freely under load. Doing so will result in a loss of rope strength and reduced fatigue life. Block Twisting (Cabling) will occur when used exceeding certain lifting heights. This is NOT a non-rotating rope. Call for advice -24-25 02-896-5656 www.osc.c

Wire Breaking Strengths Note: The maximum CAPACITY, WORKING LOAD LIMIT (WLL), or LINE PULL of the rope usually is 1/5 of the below stated values. For specific information consult the standards applicable to your rope application. Steel Wire, Rotation Resistant, Compacted Construction: 4x40 rotation resistant, fiber core, RRL 4-strand wire rope for all applications which call for a tough but at the same time rotation resistant rope type. Mainly used on bulk shipunloader cranes with grabs and on heavy duty construction equipment, like pile drivers. The compaction process results in nearly oval outer strands which gives the rope a smooth outer surface for increased abrasion resistance to be able to withstand the rough bulk unloading procedures and multiple layer drum crushing. mm 18 19 20 22 24 25 inch 3/4 7/8 1 Python UNI-4 4 x 40 rotation resistant Nominal Strength kn 288 320 355 429 482 529 tons of 2000 lbs 32.3 35.9 39.9 48.2 54.2 59.4 Weight per foot kg/m lbs/ft 1.44 1.61 1.79 2.08 2.53 2.65.96 1.08 1.20 1.39 1.70 1.78 Specify if galvanized finish is required. 26 28 30 1-1/8 580 680 781 65.2 76.4 87.8 2.77 3.39 3.90 1.86 2.27 2.61 32 34 36 1-1/4 879 993 1135 98.8 111.6 127.6 4.20 4.75 5.60 2.81 3.20 3.75-25- 26 02-896-5656 www.osc.c

Wire Python Compac 18 Rotation Resistant Wire 2-layer type, refer to page 10 Compac 18 (18x19) 12 outer rope strands 19 wire SEALE strand construction for better flexibility Complete rope is compacted for increased abrasion resistance and better spooling Inner strands are reversed lay to provide rotation resistance feature Main Applications: Python Compac 18 is recommended for both multipart load and single part applications where a medium rotational stability is needed. Use as main- and auxiliary hoist line on GROVE, LINK BELT, MANITOWOC, TEREX and other US made mobile- and truck cranes. Often used as a single point line. Large lifting heights will require a tag line to prevent spinning of the load. Also used very successfully as a pulling rope on underground cable pulling winches. NOT recommended for construction tower cranes. Characteristic: Using the rope to it s maximum fatigue life will cause the rope to deteriorate from the inside out. For this reason we do not recommend this rope to be used on construction for tower cranes. However, mobile and truck mounted cranes are operated on a much less severe duty cycle and it is not expected that Python Compac18 has to be replaced because of inner rope fatigue but because of other mechanical damages. Keep in mind that this statement covers normal mobile crane use only. Compacted strands provide improved abrasion resistance as compared with round wire types because of the greater wire and strand bearing surfaces contacting sheaves and drums. Python Compac 18 wire ropes are more resistant to the effects of drum crushing than 19x7 due to the compacted strands and smoothness of the rope surface. With 18 strands of 19 wires in all sizes, Python Compac 18 remains extremely flexible and easy to handle. Python Compac 18 ropes are ROTATION RESISTANT but NOT non-rotating. Do NOT use Python Compac 18 wire rope attached to a swivel or have one or both rope ends rotate freely under load. Doing so will result in a loss of rope strength of between 30% to 40%. Block Twisting (Cabling) will occur when used exceeding certain lifting heights. This is NOT a non-rotating rope. Call for advice -26-27 02-896-5656 www.osc.c

Wire Breaking Strengths Note: The maximum CAPACITY, WORKING LOAD LIMIT (WLL), or LINE PULL of the rope usually is 1/5 of the below stated values. For specific information consult the standards applicable to your rope application. Steel Wire, Rotation Resistant, Compacted Construction: 18 x 19 IWRC, compacted, bright, RRL Python Compac 18 is recommended where a medium rotational stability is needed. Use as main- and auxiliary hoist line on GROVE, LINK BELT, MANITOWOC, TEREX and other US made smaller mobile- and truck cranes. Often used as a single point line. Larger lifting heights will require a tag line to prevent spinning of the load and/or block twisting. NOT recommended for construction tower cranes. inch 3/8 7/16 1/2 9/16 5/8 3/4 7/8 1 1-1/8 Python Compac 18 (18 x 19 rotation resistant) Nominal Strength tons of 2000 lbs EIPS 7.6 10.4 14.5 18.4 22.7 32.7 44.5 58.1 73.5 Weight per foot lbs.30.40.54.69.85 1.25 1.68 2.17 2.74-27- 28 02-896-5656 www.osc.c

Non-Rotating Wire Python Compac 35 Non-Rotating Wire 3-layer type, refer to page 10 Compac 35 (35x7) 16 outer rope strands (19x7 has 12 only) Compacted rope design Outer wires are die drawn to provide a smooth rope surface thus enhancing spooling characteristic (less interlocking on drum) Inner strands are reversed lay to provide good non-rotating properties of the rope. Main Applications: Main- and auxiliary hoist line for european type mobile- and for all types of construction tower- and offshore cranes which require a high strength rotation resistant rope construction. The rotation resistant properties make this rope the preferred choice for all single- and multiple line reeving applications. Characteristic: This rope is constructed from 16 outer die-drawn strands over 12 inner die-drawn strands. The compacted Lang Lay strands reduce interlocking while spooling onto multiple layer drums as well as inter strand- and inter layer nicking. This rope is suited to be used on tower cranes as well as european made mobile crane models. Python Compac 35 comes with a limited diameter tolerance of between +2% to +4% to comply with LEBUS drum criteria. The large number of outer strands distribute the pressures introduced by sheaves and drum more evenly onto the core minimizing the danger of unexpected rope failures because of undetected core deterioration. Aside from this safety issue Python Compac 35 satisfies the highstrength requirements of late model tower- and mobile cranes which can NOT be met with neither 19x7 nor 19x19 style ropes. Recommended to be used on grooved drums. Python Compac 35 is available in right- AND left hand lay to comply with OEM specifications (Krupp, Demag, Liebherr etc.) Python Compac 35 ropes are classified as NON-ROTATING YES, Python Compac 35 ropes can be used with a swivel at the end. In fact, we suggest you use a swivel during installation and the 'break-in' period to get the rope settled. After the break in period you can lock the swivel to stabilize the rope. O.K. to use When properly used Python Compac 35 is stable against block twisting. Fleet angles, small sheaves, small line spacing, low block weight will negatively impact this characteristic. -28-29 02-896-5656 www.osc.c

Non-Rotating Wire Breaking Strengths Note: The maximum CAPACITY, WORKING LOAD LIMIT (WLL), or LINE PULL of the rope usually is 1/5 of the below stated values. For specific information consult the standards applicable to your rope application. Non-Rotating Steel Wire, Python Compac 35 Euro Style - Lang s Lay Class & Construction: 35 x 7 die-drawn strands (up to 42 mm / 1-5/8 ) 35 x 19 die-drawn strands (over 44 mm / 1-3/4 and up) Recommended to be used on tower-, european type mobile-, and offshore cranes. Available in left- and right hand lang s lay construction. Recommended if you require a rope for single line hoisting applications. Due to reduced diameter tolerance to between +2% to +4% it conforms to the tight LEBUS drum specification. ALLOWED to be used with a swivel. mm 14 15 16 17 18 19 20 21 22 23 24 25 26 28 30 Python Compac 35 Euro Style inch 9/16 5/8 3/4 7/8 1 1-1/8 Minimum Breaking Strength tons of kn 2000 lbs 196 226 253 287 317 358 402 444 482 527 565 615 656 771 892 22.0 25.4 28.5 32.2 35.6 40.2 45.1 49.9 54.1 59.2 63.5 69.1 73.7 86.6 100.2 Weight per meter kg.96 1.12 1.25 1.41 1.56 1.76 1.98 2.19 2.37 2.62 2.81 3.06 3.26 3.84 4.44 32 34 35 1-1/4 1-3/8 1006 1086 1148 113.0 122.0 129.0 5.00 5.61 5.92 36 37 38 1-1/2 1221 1276 1371 137.2 143.4 154.1 6.31 6.59 7.08 40 41 42 1-5/8 1470 1483 1553 165.3 166.7 174.5 7.59 8.05 8.43 44 46 48 1-3/4 1-7/8 1839 1969 2156 206.7 221.3 242.3 9.50 10.20 11.10 50 52 54 2 2-1/4 2356 2554 2771 264.8 287.1 311.5 12.20 13.20 14.30 56 58 60 2-3/8 2923 3150 3390 328.5 354.1 381.0 15.10 16.30 17.50 62 64 66 68 70 2-1/2 2-3/4 3632 3850 4078 4349 4630 295.8 432.7 458.3 488.8 520.4 18.80 19.90 21.10 22.50 23.90 72 74 76 78 80 3 4870 5155 5410 5719 5994 547.4 579.4 608.1 642.8 673.7 25.20 26.60 27.90 29.50 31.00 3-1/8 30 02-896-5656-29- www.osc.c

Non-Rotating Wire Python Lift High Strength Non-Rotating 3-layer type, refer to page 10 Python Lift 15 OVAL shaped outer strands Compacted rope design for highest breaking strength Outer strands have 5 wires to enhance abrasion resistance plus each strand has an inserted aluminum buffer core Inner strands are reversed lay to provide excellent non-rotating properties Main Applications: Main- and auxiliary hoist line for high performance mobile-lattice boom- and for all types of construction tower cranes which require a super high strength rotation resistant rope construction. This is THE true NON-ROTATING rope construction. Characteristic: This 3-layer rope is constructed from 15 unique oval shaped outer strands over 24 alternating diameter sized inner strands. The outer strands of Python -LIFT have 5 wires instead of the usual 7. Each wire is slightly larger for better abrasion resistance. In the inside of each of these strands we put a aluminum wire during manufacturing; this aluminum wire has NO function once the rope is in service. Python Lift is our strongest non-rotating rope construction, both in terms of strength with fixed AND with the ends allowed to rotate freely. The gain in strength compared with the same sized 19x7 is an astonishing 60%. Python Lift ropes are used where high fatigue resistance coupled with high strength and excellent non-rotating properties is required; e.g. in tunnel boring projects, subway construction, etc. However, we do not recommended this rope to be used on smooth drums. It works best on LEBUS drums with appropriately sized groove contours. Python Lift ropes are classified as NON-ROTATING O.K. to use YES, Python Lift ropes can be used with a swivel at the end. In fact, we suggest you use a swivel during installation and the 'breakin' period to get the rope settled. After the break in period you can lock the swivel to stabilize the rope. When properly used Python Lift is stable against block twisting. Fleet angles, small sheaves, small line spacing, low block weight will negatively impact this characteristic. -30-31 02-896-5656 www.osc.c

Non-Rotating Wire Breaking Strengths Note: The maximum CAPACITY, WORKING LOAD LIMIT (WLL), or LINE PULL of the rope usually is 1/5 of the below stated values. For specific information consult the standards applicable to your rope application. High Strength Non-Rotating Crane Wire Class: 34 x 7 High strength super flexible true non-rotating rope. Oval outer strands provide for excellent sheave and drum contact area. Because of it s flexibility it is sensitive to multiple layer drum crushing and mechanical damages and thus requires grooved drums; works best on Lebus drum lagging. It is NOT a good idea to use LIFT on smooth (un-grooved) drums. LIFT is ALLOWED to be used with swivel. inch 7/16 1/2 9/16 5/8 3/4 7/8 Imperial Python - Lift Minimum Breaking Strength tons of 2000 lbs Lift EIPS 13.1 17.4 22.1 27.7 39.0 52.3 Lift EEIPS 14.4 19.2 24.4 30.5 43.0 57.7 lbs per ft.38.51.64.81 1.14 1.53 1 1-1/8 1-1/4 69.8 88.4 109.3 76.9 97.5 120.5 2.03 2.58 3.19 mm Metric Python - LIFT Minimum Breaking Strength kn Lift Lift 1960 N/mm 2 2160 N/mm 2 kg per meter 10 11 12 96.2 116.4 138.6 106.1 128.3 152.7.47.57.68 13 14 15 162.6 188.6 216.5 179.1 207.7 238.5.79.92 1.06 16 18 19 246.4 311.8 347.4 271.3 343.4 382.6 1.20 1.52 1.69 20 22 24 384.9 465.8 554.3 423.9 513.0 610.5 1.88 2.27 2.70 26 28 30 650.6 754.5 866.1 716.5 830.9 953.9 3.17 3.68 4.22 32 985.5 1085.3 4.80-31- 32 02-896-5656 www.osc.c

Non-Rotating Wire Python Hoist Non-Rotating Wire 3-layer type, refer to page 10 Python Hoist Compacted rope design with 17 outer- and 21 inner strands Outer strands have 7 compacted wires to enhance abrasion resistance The CORE IS PLASTIC COATED to prevent metal-to-metal contact of rope core to outer strands PLUS it locks in factory applied lubrication Inner strands are reversed lay to provide non-rotating properties Main Applications: Load line on construction tower cranes. Main- and auxiliary hoist line for tower- and overhead cranes as well as ship cranes which require a non-rotating rope for severe dynamic load conditions. Hoist is a medium strength non-rotating wire rope. Characteristic: Constructed from 17 outer strands over a 2-layer 24 strand plastic coated core. The plastic coating prevents metal to metal contact between outer- and inner strands and thus nearly 100% reducing the chance of undetectable inner wire- or strand failures. Plus, the plastic shield locks in factory applied core lubrication. That is pretty fancy, I say! This rope is recommended for applications with high dynamic fatigue loads where otherwise the core might fail. The plastic core shield acts like a shock absorber much like in other Python rope types. Python Hoist requires grooved drums, preferable with LEBUS grooving. Python Hoist ropes are classified as NON-ROTATING YES, Python Hoist ropes can be used with a swivel at the end. In fact, we suggest you use a swivel during installation and the 'breakin' period to get the rope settled. After the break in period you can lock the swivel to stabilize the rope. O.K. to use When properly used Python Hoist is stable against block twisting. Fleet angles, small sheaves, small line spacing, low block weight will negatively impact this characteristic. -32-33 02-896-5656 www.osc.c

Non-Rotating Wire Breaking Strengths Note: The maximum CAPACITY, WORKING LOAD LIMIT (WLL), or LINE PULL of the rope usually is 1/5 of the below stated values. For specific information consult the standards applicable to your rope application. Non-Rotating Crane Wire with a plastic coated core Construction: 38 x 7 Class 34 x 7 Medium strength, high fatigue resistant nonrotating type. Compacting increases strength and sheave contact area. The plastic coated core increases fatigue life and prevents premature inner wire breaks as well as providing for permanent core lubrication. ALLOWED to be used with a swivel. Increased contact points between rope and sheave results in less internal rope pressure and less rope and sheave wear. Python Hoist 19x7 19x19 inch 7/16 1/2 9/16 5/8 3/4 7/8 1 1-1/8 1-1/4 1-3/8 1-1/2 Imperial Python - Hoist Minimum Breaking Strength tons of 2000 lbs Hoist EIPS 11.9 15.9 20.2 25.3 35.7 47.8 63.7 80.8 101.2 120.3 142.6 Hoist EEIPS 13.2 17.6 21.3 27.8 39.3 52.7 70.2 89.0 111.5 132.6 157.1 lbs per ft.37.49.63.78 1.10 1.48 1.97 2.50 3.13 3.73 4.42 Metric Python - Hoist mm Minimum Breaking Strength kn Hoist 1960 N/mm 2 Hoist 2160 N/mm 2 kg per meter 10 11 12 87.9 106.3 126.5 96.8 117.1 139.4.45.55.65 13 14 15 148.4 172.2 197.6 163.5 189.7 217.8.77.89 1.02 16 18 19 224.8 284.6 317.1 247.8 313.6 349.4 1.16 1.47 1.64 20 22 24 351.3 425.2 506.0 387.2 468.5 557.6 1.82 2.20 2.62 26 28 30 593.7 688.6 790.6 654.4 758.9 871.1 3.07 3.56 4.09-33- 34 02-896-5656 www.osc.c