Pneumatic impactor Subject: Drilling Words: pneumatic impactor English: pneumatic percussion hammer pile sealing curtain, pneumatic down-tme-hole hammer Explanation: also known as pneumatic impactor, pneumatic DTH. Powered by compressed air medium, the use of compressed air energy generating bottom hole continuous impact load power tool. Compressed air can also be used as the porous medium wash. Pneumatic impact has low pressure and high pressure, valve and valveless points. Usually pneumatic impact connected directly carbide drill column gear to impact crushed rock way, the low-speed rotation does not take heart full drilling. Mainly used in hydrology and water well drilling, no geological core drilling, geological disaster prevention drill in areas such as engineering and mining. Suitable for gravel and hard rock applications, configuration bit special structures can also be used in soft soil. ROP is generally much higher than the impactor drilling drill one sealing curtain spray pile driver, but with the ability to require a larger air compressor, a larger fuel consumption, noise and dust pollution. Drilling depth greatly influenced by the groundwater level, water. Strong high-pressure pump Co., Ltd. Tianjin Poly High Pressure Grouting good reputation mechanical equipment price GZB-40C-pressure injection pump high-pressure jet grouting equipment, mainly for the high pressure jet grouting to provide high-pressure water slurry. For the new building, highway, railway, underground railways and other soft ground reinforcement, anti-seepage treatment for around foundation, cofferdam and hydropower dams. Dual fluid injection pump is a single-cylinder double-acting triplex plunger pump sealing curtain of swing jet grouting pile three, can transport slurry, yellow mud, water glass, oil, water and other media. Two media simultaneously conveying a medium can also be individually transported full hydraulic pile driver curtain sealing, stable performance, compact structure, easy operation and maintenance. Dual fluid injection pump is widely used in tunnels, mines mining face grouting plugging; rock roadway and concrete wall grouting plugging water; tunnel cracks, broken rock, rock reinforcement evacuation; anchor grouting; backfill grouting and to prevent surface subsidence, prevent landslides, correct skewed buildings grouting carried out and so on.