Superiorities of MTB Breakers

Superiorities of MTB Breakers

The hydraulic accumulators do not need N2 gas charging on the working site. Normally, MTB accumulators can be used for 2 years or longer without charging. On the other hand, there can be gas leakage on gas type breakers, which should be constantly controlled and recharged when necessary. Compared to gas type breakers MTB hydraulic breakers have 3 times bigger accumulator. It has the advantage of less vibration and generation of more power 2

The cylinder and the piston of MTB breakers operate without touching each other (steel to steel) on blank firing time. MTB breakers have bigger volume oil cushion chamber than other brands, which provides strong hydraulic suspension. Thanks to this MTB breakers work continuously without interruption. Other brands use mainly stop function or variable stroke control. Stop function works by relief control. Relief valve works continuously by opening and closing, thus hydraulic oil overheats and the extremely warm oil may cause problem with the hydraulic components of the carrier and the breaker itself. Variable stroke function is designed by complicated valves on the breaker, which may cause problems from time to time. MTB s Hydraulic Suspension function is simple solution and simple design is the best for hydraulic breakers. Piston Thrust Ring Tool HYDRAULIC SUSPENSION AREA Regular Impact Blank Firing (Idle Stroke) 3

Housing material is a special bending type material, that s why it is stronger. Also the welds on housing are reduced and no housing bolts are used. This makes the housing more rigid and stronger. GAS TYPE HAMMERS Open type housing plates are assembled to body with 6-8 side bolts. During the operation of the breaker, vibration causes loosening of side bolts. If they are not tighten regularly and periodically, side bolts will be broken from the thread. High wearing resistance and protection from abrasive rock materials. 4

Side rods are covered with polyurethane to reduce stress and vibration on the thread. The side rod design is flexible, thus there is less vibration force on the thread. Absorbs the vibration Reduced stress on thread 5

There are 21 kinds of MTB models from 100 kg to 7 ton for each job condition and carrier machine weight class (concrete breaking, mines, tunnel, quarry, demolition,underwater, underground and etc.). There are 18 various MTB models according to the weight class 1. MTB 11 100 kg 2. MTB 15 150 kg 3. MTB 21 210 kg 4. MTB 25 310 kg 5. MTB 30 300 kg 6. MTB 35 400 kg 6. MTB 38 400 kg 6. MTB 36 400 kg 7. MTB 40 430 kg 7. MTB 45 480 kg 8. MTB 65 650 kg 9. MTB 95 950 kg 10. MTB 125 1200 kg 11. MTB 155 1600 kg 12. MTB 175 1800 kg 13. MTB 215 2200 kg 14. MTB 255 2520 kg 15. MTB 285 2950 kg 16. MTB 365 3750 kg 17. MTB 505 4750 kg 18. MTB 705 7000 kg 6

MTB breaker can be operated in vertical, horizontal and various positions since MTB pistons are lighter and longer than the other breakers. In addition to this, MTB pistons are supported with durable and extra seals L=882 mm L=815 mm L=822 mm MTB 175 75 kg F27 105 kg MB1700 96 kg 7

MTB breakers work at the low oil flow and pressure thanks to it s design concept. Low oil flow and pressure need less input power. This is why MTB s eficiency is high. Economical fuel consumption of excavators The base of hydraulic system is generating hydraulic energy. Firstly, thermal energy must be given the system as an input. Engine generates mechanical energy using fuel. And then, hydraulic pump generates hydraulic energy with the mechanical energy. At the end of the cycle, hydraulic energy is transformed to mechanical energy (impact enegy) by cylinder. InputPower P xo 1 1,2 600 OutputPower P1: Working Pressure Q1,2: Oil Flow ( InpactEnergy) x( Frequency) 60000 8

TUNNELING APPLICATION (U/G) Continuous horizontal operation by hydraulic suspension function without interruption. Special piston and cylinder design for horizontal operation, Increased working volume Extended wearing plates Bronze bushings Dust seal on the tool bushing UNDERWATER APPLICATION (U/W) For underwater operation, MTBs have effective and special designs. The compressed air that comes from the compressor, transfered with internal line of breaker to the area which piston and tool works. Compressive air doesn t allow the water to fill in where the piston strikes the tool, thus, damages are prevented on excavator and breaker parts. STEEL INDUSTRY APPLICATION (S/I) 10

BLUNT TOOL For igneous (e.g. Granite) and tough metamorphic rock (e.g. Gneiss) into which the tool doesn t penetrate. At secondary breaking application. Breaking boluders. CHISEL-G TYPE This tool is used at dusty places to take away dust from tip of tool. There are channels to let the dust go out from the tip. MOIL TOOL For sedimentary (e.g. Sandstone) and weak metamorphic rock into which the tool penetrates. Used for concrete, hard abbrassive ground, breaking of brittle rock. CONE- X TYPE This tool is used at dusty places to take away dust from tip of tool. There are channels to let the dust go away from the tip. PYRAMITE TOOL For concrete ASPHALT CUTTER This tool is used to cut asphalt for trenching CHISEL POINT TOOL Excavation of bedrock, breaking on the flat ground. Breaking of brittle rock, For primary breaking application. Trenching and benching. SUPER BLUNT This tool is used for increasing the wearing resistance of blunt tool 11

SKID-STEER LOADER (BOBCAT) MINI-EXCAVATOR BACKHOE-LOADER Small Series MTB Breakers help to do your jobs with high power, performance, productive, safety, fastly and etc. There are 9 sort of small MTB models suitable for 1~10 ton class skid-steer-loader, mini-excavator and backhoe-loader. They are used for trenching, ditching, excavation, demolition, scaling in tunnel applications and where ever that the carrier machine can be operated. Small Series MTBs serve to customers with two different designs as Gas Type and Hydraulic Type. 12

Hydraulic Breakers are chosen according to carrying capacity of the carrier machines. There are designed 5 sorts of MTB models with 650 to 1870 kg weight for 7~29 ton class excavator. The big size excavators are used at the open mine and quarry, thus, medium size breakers are not used at these applications. Medium Size MTB breakers are used for trenching, ditching, excavation, demolition, tunnel construction, underwater application etc. Medium Size MTBs are given high class performance and easy operation with perfect design, high impact energy, low maintenance cost for you. 13

There are designed 6 sort of MTB models with 2200 to 7000 kg weight for 25~100 ton class excavator. Big Size MTB breakers are used at the open&close mine and quarry. Additionally, used for excavation, demolition, tunnel construction, underwater application and etc. Hydraulic Breakers are choosen according to carrying capacity of the carrier machines. Generally big size breakers are preferred for high breaking volume in short term jobs. Big Size MTBs have high impact power and performance for high breaking volume in short time term. You can live low maintenance and high performance requirements together with Big Size MTBs. 14