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High impact energy
A combination of 70% nitrogen gas and 30% hydraulic energy provides powerful impact for high-performance productivity.
Simple design, longer life
With only 2 moving parts and a built-in dust prevention system, you get maximum uptime and reliability.
Fewer parts
Up to 30% fewer parts than competition for reduced operating costs and less maintenance.
Environmentally-friendly
Box brackets with noise-reduction design – minimally invasive in urban areas.
Extensive tool range
For use in a large variety applications.
Versatile with any carrier
Low sensitivity to back pressure means the Komatsu breaker can be used with virtually any carrier.
Nitrogen gas cushion
Absorbs piston recoil to reduce vibrations for less stress on the machine and operator.
Dual retainer pins
Ensures proper alignment and spreads wear, for a longer chisel and bushing life.
Simple control valve
Flow-through design for effi cient control with a minimal hydraulic surge.
Dual retainer pins
Ensures proper alignment and spreads wear, for a longer
Patented tie rod design
Short, fully-enclosed tie rods with internal vibration dampeners and patented thread design resist standard wear and tear.
50/50 piston-to-chisel
weight ratio With long stroke for greater energy transfer and less recoil.
Special hardened alloy points
Increases durability in a wide range of applications.
Hydraulic cushioning
Helps to prevent damage caused by inadvertently triggering a “blank” fire
”Accumulator-free” technology
Less maintenance, increased reliability and durability – and lower operating costs.
Underwater application port
Standard on all breakers, for a quick and convenient pressurized air connection.
Auto-lube options
Easily post-fi tted, it eliminates time wasted on manual greasing and ensures correct and continuous lubrication.
MODEL | JTHB08-3 | JTHB10-3 | JTHB20-3 | JTHB30-3 | JTHB40-3 | JTHB50-3 (JTHB50WB-3) |
JTHB60-3 | |
---|---|---|---|---|---|---|---|---|
Operating weight | kg | 90 | 120 | 165 | 255 | 320 | 385 (295) | 570 |
Oil flow | l/min | 18-25 | 20-30 | 20-35 | 25-45 | 30-55 | 35-60 | 40-70 |
Operating pressure | bar | 60-130 | 70-140 | 80-150 | 100-150 | 100-160 | 100-160 | 100-160 |
Impact rate | bpm | 930-1.300 | 700-1.200 | 600-1.150 | 550-1.000 | 580-1.060 | 550-1.000 | 600-1.050 |
Tool diameter | mm | 40 | 45 | 50 | 58 | 64 | 75 | 95 |
Hose size | inch | 3/8 | 1/2 | 1/2 | 1/2 | 1/2 | 1/2 | 3/4 |
Gas pressure | bar | 8 | 8 | 8 | 8 | 8 | 8 | 10 |
Base machine weight range | ton | 0,7-1,5 | 1-2 | 1,5-2,5 | 2,4-4 | 3-4,5 | 3,8-6 | 6-11 |
MODEL | JTHB08-3 | JTHB10-3 | JTHB20-3 | JTHB30-3 | JTHB40-3 | JTHB50-3/ JTHBWB-3 |
JTHB60-3 |
---|---|---|---|---|---|---|---|
Machine weight (tonnes) | 0,7 – 1,5 | 1-2 | 1,5 – 2,5 | 2,4 – 4 | 3- 4,5 | 3,8 – 6 | 6-11 |
Machine models | PC09-1 | PC18MR-3 | PC22MR-3 | PC30MR-3 | PC45MR-3 | PC55MR-3 | PC80MR-3 |
PC14R-3 | PC26MR-3 | PC35MR-3 | WB93R/S-5 | PC88MR-3 | |||
PC16R-3 | SK714-5 | WB97R/S-5 | PC98MR-3 | ||||
SK815-5 | |||||||
SK820-5 |
An optional auto grease system eliminates the need for manual interventions. By greasing the breaker at fixed intervals and with adjustable output, the system improves ease-of-use and extends the lifetime of your breaker and wear parts. Available on the JTHB120-3 and larger breakers, it is fully incorporated into the bracket and doesn’t require an external power source.
JTHB breakers can be quickly and easily adapted for underwater use through the optional underwater kit. Compressed air is supplied through the air port on the breaker’s body (included as standard across the range), preventing water from entering the breaker
A number of kits are available for special applications such as:
Contact us for more details.