GQ-20 Building Construction Tools And Equipment is developed based on GQ-15 rig,in order to meet the needing of construction of large dia .The structure of the rig is stable and reliable.

Large torque,light weight and small size compare to the same kind drilling machine.It is easy to move.
The mast is like a dragon door,the top-head can move down or up on it .Large strength,drill high accurate hole.
Inner hole of top-head is large(182 × 182mm),can drill with forward circulation or reverse circulation drilliin method.
The rig uses DF6S900 gear box of DONG-FENG truck,it has 6 forward gears,1 reverse speed,it is suitable for drlling various earth formation.It is good to handle accidents in hole,and easy to maintain due to using general spare parts.
Top-head is equipped with man power chuck ,drilling with Square Kelly,large depth per drilling high efficiency .
The Oil feed cylinders make the top-hand move up and down ,pressure and depression drilling easily,and have large pull ad push force.
The retraction distance is 1550mm,have larger distance away from hole,to make the drilling tools up and down easily.
Have waking device ,move and find hole position easily.
Reasonable arrangement,operation easy, nimble and reliable.
Can be equipped with special tower, drilling more conveniently.

Specification

hole dia (mm)		Φ2000 mm
drilling capacity (m)		60 m
Active drill pipe		180×180×4434 mm
Active drill pipe		(PathΦ115 mm)
top drive head speeds(r/min)	forward	9.5,10.5,28.4,44.1,65.9
top drive head speeds(r/min)	reverse	10.7
Hoist wire rope lifting speed ( m/s )		forward 0.78,1.36,2.34,3.63
top drive head	max torque (N.m)	55 kN·m
	top drive head inner hole (mm)	182×182 mm
	top drive head max push force(KN)/ pull force	113/154kN
	top drive head stroke(mm)	1000 mm
Hoist	hoist lift capacity with singlerope(KN))	58 kN
	Single rope speed increase speed	0.78 m/s
	Reel diameter	300 mm
	Rope capacity	30 m
	Rope diameter	Φ19.5 m
	Rack mobile travel	1550 mm
	Open orifice distance	1038 mm
	The rig Dimensions (length × width × height)	5000×2400×2840 mm
		5000×2400×3070 mm
		(With walking)
	Rig the total weight	12500kg
Rig power	Motor model: Y250M-4	55 kw;1480 r/min

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Product Tags:

water borehole drilling machine

water drilling machine

small water drilling machine

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