Hydraulic underground core drilling rig

Model Number: HFU-3A Brand Name: HF Key Specifications/Special Features: HFU-3A full hydraulic underground core drilling machineis mainly applied in the fields of coal, geology, metallurgy and engineering. It is used for drilling large diameter gas suction hole in mines, gallery as well as coal mine, water injection hole, and big diameter horizontal hole.It can meet the big diameter roller drilling, hard tungsten-carbide drilling and percussive-rotary drilling.Main features:1. It is separate in structure, small in size, light in weight, flexible in movement and convenient in operation.2. The hydraulic pump is driven by explosion-proof electric motor through operating system, then the hydraulic pump enforces hydraulic motor to make drill head rotate, and at the same time, the movement of drill head is realized by oil cylinder & chain double speed mechanism.3. Hydraulic chuck can satisfy the function of shackles and power-off protection.4. The sliding and extending & retracting function of the mast makes it convenient for the bottom of mast to touches the ground or platform, thus the drill rig will be more stable.5. The swinging arm and mast can do luffing movement, which satisfy the request of multi-angle drilling.6. The range of spindle rotating speed is wide and the torque is large.

Drillingdepth	Φ55mmdrillingrod		300m	Drillrodspec		Φ55*1500mm
	Φ71mmdrillingrod		200m			Φ71*1500mm
Therangeofspindlerotating speed			425-1280rpm	Themax.Rotatingtorque ofspindle		795N·m
Theworkingpressure			25Mpa	Spindlestroke		1600mm
Themax.Liftingforceofdrill head			62KN	Themax.Feedingforce ofdrillhead		33KN
Theslidingstokeofmast			495mm	Theswingangleofmast bracket (left&right)		90°
Theswingangleofarm (upanddown)			100°	Powerunit		YB225M-4 (dIICT4)
				Explosion-proofelectricmotor		45KW/1480rpm
Dimensions		Mainmachine (L*W*H)	2950*950*1850mm	Weight	Mainmachine	1000kg
		Powerunit (L*W*H)	1900*980*1320mm		Powerunit	1050kg
		Operationcabinet (L*W*H)	540*360*1080mm	Operationcabinet		140kg