Shandong wells rig main applies Yu drill chisel wells, and agricultural irrigation well, and geothermal air conditioning hole and the other uses of well hole, especially applies Yu mountain and rock formation of take water engineering. whole car gravity low, climbing more smooth, and more security, adaptability strong, used new hydraulic technology, Rotary torque big, advance, and upgrade smooth fast, control disc operation handles concentrated control, operation simple, operation hand can station in host side for drilling job, improve has job safety. chisel rock Shi impact device into hole within, through distribution gas device (valve), Shock piston (hammer) tail for reciprocating motion against drill, bits of hole-bottom rock impact. this product (LQ-300 crawler water well drilling rig, Shandong) main technical parameters are as follows, maximum depth of hole 100m-300m, drilling diameter maximum 300mm 2000mm-3000mm drill pipe length, power stroke 4600mm, drill diameter 89mm/108mm, lifting capacity 25T, Rotary torque 10000NM Carrying mode: hydraulic crawler, walking speed 3000km/h, climbing capacity is 30 °, dimensions 3000mm*1700mm*2300mm, weight 7000kg.