Komatsu JMHB Breakers (H Series)

Designed for a compact and large machine range and based on accumulator-type technology, the H-series breaker delivers consistent impact power in any environment, on any machine.  Innovative features and clever design improve production while lowering the total cost of ownership significantly.

COMPACT range: Eleven breakers, from 65 to 1.190kg cover the utility and midi excavator market.  Our range of breakers are designed with a compact and light body, improving machine stability, operator visibility and comfort.  Within the breaker, the set-up is simple and reliable – fewer parts for fewer risks: no tie-rods but with high quality genuine component parts, automatic pressure regulation, high back pressure tolerance and blank firing protection.

LARGE range: Four heavy-duty breakers designed to cut a swathe through any material in its path.  Suitable for carriers between 20 to 80-tonne, our range of breakers will automatically adjust their working frequency depending on the hardness of the material.

Large diaphragm accumulator: Full power, day after day. Smoothens pressure spikes, protecting the carrier.

Advanced blank firing protection as standard: Protect your investment! Piston movement is not interrupted, but impact is prevented by a hydraulic brake. Saves time and money.

High back pressure tolerance: The H-series utility breakers can work on any machine, thanks to their high tolerance for back pressure.

Pressure regulator valve: Maintains a constant operating pressure, providing powerful impact strokes, whatever the conditions. On some models, the valve can also divert up to 15% of excessive flow, protecting the breaker from damage.

Compact and light housing: The H-series utility breakers are incredibly compact, enabling better operator visibility and greater stability and comfort.

Fully suspended, silent: The fully suspended powercell reduces shock wave transmission, resulting in higher operator comfort and less noise.

Automatic greasing system: Optional on JMHB100H-1 and standard on all larger models, the automatic greasing system continuously provides the optimal amount of grease to the breaker.

Automatic 2-speed selection: 200% energy variation in 1s. Fully automatic speed selection allows for maximum production capacity in any condition and protects the breaker from excessive impact forces.

Swivel hose couplings: The hoses are connected on articulated couplings, allowing them to move freely, for less breakage risk and a longer lifetime.

Right tool for each job: Standard- Moil point, pyramid, chisel or blunt tool. Specials – Special tools are available for dust extraction, super abrasive applications or work in soft ground.

JMHB09H-1: 65kg
JMHB15H-1: 90kg
JMHB21H-1: 110kg
JMHB35H-1: 150kg
JMHB45H-1: 225kg
JMHB55H-1: 275kg
JMHB70H-1: 365kg
JMHB80H-1: 445kg
JMHB100H-1: 498kg
JMHB130H-1: 730kg
JMHB170H-1: 1,120kg
JMHB220H-1: 1,884kg
JMHB360H-1: 2,571kg
JMHB460H-1: 3,261kg
JMHB660H-1: 4,668kg