GZB-40C-pressure injection pump injection pump piston stroke parameters: 100mm Ratio: 1 = 7.2545 piston strokes per: 169 times the suction pipe diameter: 50mm diameter discharge pipe: 16 ~ 25mm piston diameter: 45, 50, 55mm output flow: 96,99,110L / Min rated pressure: 42,40,35Mpa (with 90kw motor) 35,30,28Mpa (with 75kw motor) 25,22,20Mpa (with 55kw motor) Motor type: YCT335-4C maximum motor speed: 1340r / Min Dimensions: 3050 * 1800 * 1150mm Machine weight: 3000kg crankshaft diameter 133mm, not easy to wear Jet drilling rig pile diameter, damaged; W type transmission, not damaged, does not affect the field of engineering process; forging ensure the life of the pump head. What is the gravel pile it? Simply put, is the foundation drilling tube (inner tube into the hole filling gravel) into the hole with a pile driver into the hole with enough depth to gravel poured into the hole, then squeeze jet grouting rig, called the formation of the pile of broken Shizhuang. Impactor Subject: Drilling Words: impactor English: hydro-hammer, hydro-percussive hammer, down the-hole hammer (DTM) Explanation: Also known as hydraulic impact rotary drilling, hydraulic DTH . In drilling fluid driven media, with high pressure water flow energy and dynamic impact energy to produce a continuous impact load power tool bottom of the hole. Usually connected directly to the upper part of the core bit in rotary drilling rig, while high pressure rotary jet manufacturers, the continuous impact load transmitted to the coring drill, the drill with rotary cutting and breaking rock joint impact in two ways. For geological core drilling, particularly suitable for applications in hard rock crushing medium hardness and coarse heterogeneous formations. Hydraulic impact rotary drilling technology can improve ROP three sealing curtain Jet rig, extending back to the times footage, slowing drilling bend. This is a Chinese invention, also abroad for the development of large oil wells, geological drilling.