Are cycle rig with drill pipe led wind moving impact device and bit with rotating, using wind moving impact device of piston impact bit broken mine rock, usually with in small and medium mine in the drill diameter 80~250 mm of gun hole. 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 circulation drill) the 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.