Drilling machine manufacturers production of drill chisel aperture is less than 150 mm of well Xia gun hole Shi, except application chisel rock machine outside also can application 80~150 mm of small diameter dive hole drill. 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 job safety. this product (LQ-300 crawler drilling machine manufacturers) technical parameters 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.