Expanded range of hydraulic breakers
Komatsu adds breaker models that are designed to be compatible with Komatsu PC78 up to the PC490 excavators.
The high-percussion efficiency and unique variable energy technology of these breakers are built to provide high production in multiple applications.
To protect the breaker, carrier and operator, the breakers have an accumulator that eliminates hydraulic pump cavitation to prevent flow surges back to the carrier hydraulic tank. By recycling high-pressure oil internally, this allows more energy with a lower flow, reducing hydraulic pressure spikes and protecting the carrier's hydraulic system.
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| Easy to maintain with only two moving parts, the JTHB-G line utilizes a hybrid design of hydraulic flow and pressure along with a nitrogen-filled chamber that provides striking energy. |
JTHB-G line of breakers
Easy to maintain with only two moving parts, the JTHB-G line utilizes a hybrid design of hydraulic flow and pressure along with a nitrogen-filled chamber that provides striking energy. The patented tie-rod design is engineered for durability in tough rock and concrete applications.
Adding to longevity and durability, blank firing protection is standard and includes a hydraulic cushion at the base of the cylinder to reduce metal-to-metal contact. Larger models feature special key slot dampers that help reduce vibration to the excavator, adding to operator comfort.
The simple design of the JTHB-G hydraulic breakers translates to reduced maintenance and fewer parts to buy to help lower equipment-running costs. A one-year warranty comes with all G-series breakers and also applies to breakers used for mining and quarry applications.
JMHB-H line of breakers
Compact yet powerful, the JMHB-H attachments are accumulator-type hydraulic breakers for a variety of rock and concrete demolition applications. Unlike gas-fired breakers, the JMHB-H series does not require a nitrogen recharge. They come equipped with blank firing protection to help prevent piston movement via a hydraulic brake.
For consistent impact power in a variety of environments, sound-dampening housings help assure compliance with noise ordinances.The breaker protects itself with a patented pressure regulator valve to prevent overflow and its dampening system helps prevent damage to excavator booms and housing cracks.
To enable the use of more powerful breakers on smaller excavators, a single powercell eliminates heavy tie rods to provide a better weight-to-power ratio on compact models, while the mounted automatic lubrication feature helps protect against dust and debris. Similar to the G-series, all H-series breakers come with a one-year warranty.
https://www.komatsuamerica.com/
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