HZJX mainly produces rock-drilling tools for mining ,constriction ,tunneling ,quarrying and related industrials .We can special design and manufacture according to clients inquiry is available .

The percussion piston is a key component of the hydraulic rock drill. Impact piston design directly affect the rock drill performance and service life. Rock upon impact, the direct impact of the piston stem adapter, the energy transmitted to the rock drill through the drill pipe and threaded.

Designed of impact piston

1 .

The shape is long and thin, reducing unnecessary cross-sectional changes. This is more conducive to the propagation of the stress wave of the impact piston, reduces the peak value of the stress wave, increases the propagation time of the shock wave, and improves the energy transfer efficiency.

2 .

In the design of the impact head of the impact piston, it is designed to be equal to or close to the area of the handle adapter to obtain a small amplitude and stable shock wave, which is more conducive to smooth transmission.

3 .

The design of the piston end face is as close as possible to the centerline of the impact surface shank adapter, ensuring the lowest center offset and the impact of close contact with the surface, which is more conducive to improving the impact of the energy transfer efficiency of the piston. Avoiding additional stress in the drill pipe during drilling and thread produced by the drill bit.