Specifications

borehole drilling rig
1.large range, reasonable speed
2.Large capacity of power unit
3.Large output torque
4.hydraulic

Medium and large depth borehole drilling rig HF-7, hydraulic system     

 

I.Advantages of borehole drilling rig HF-7:

 

1.large range and reasonable drilling speeds

2.Large capacity of power unit

3.Large output torque

4.Hoister in horizontal arrangement 

5.equip with hydraulic brake, braking easily and quickly

 

II. Application of borehole drilling rig HF-7:

 

Metallic and nonmetallic solid mineral deposits prospecting; shallow oil and natural gas exploration and exploitation; geothermal well exploitation, mine ventilation and drainage ; also for large hole diameter basic pile construction. The drilling rigs can be widely used in geology, metallurgy. Coal, hydrogeology well and engineering and other industries fields

 

III. Technical parameter of borehole drilling rig HF-7:

 

Unity machine parameter
Drilling depth		600-2200m
Drill Rod made in China	Φ50 x 4.75	2200m
	Φ50 x 5	2000m
	Φ60 x 6	1450m
	Φ71 x 5	1659m
	Φ73 x 7	1000m
	Φ89 x 5	1300m
	Φ89 x 10	600m
Internally Thickeded Drill Rod	BW	2200m
	NW	1700m
	HW	1150m
Wireline Coring Drill Rod	BQ	2200m
	NQ	1700m
	HQ	1150m
	PQ	800m
	BCQ	2500m
	NCQ	2000m
	HCQ	1550m
Power	Electric motor	Y250M-4   56KW   1500r/min
	Diesel Engine	6BT5.9-85 85KW   2000r/min
Drilling angle		90° ~75°
Drill machine moving stroke		500mm
Dimension		3260 x 1280 x 2290mm
Weight ( power not included )		3350kg
Spindle
Spindle Bore Diameter		118mm
Spindle stroke		800mm
Spindle max. torque		7500N.m
Spindle max. lifting capacity		180kn
Spindle max. pressure force		120kn
Spindle Speed           Electric motor 1500r/min	Forward Rotation	41; 70; 122; 155; 178; 265; 268; 469; 681; 1016r/min
	Backward Rotation	41; 156r/min
Spindle Speed           Diesel Engine 200r/min	Forward Rotation	54; 94; 163; 207; 237; 353; 358; 625; 908; 1355r/min
	Backward Rotation	54; 207r/min
Hoist
Max.single line hoisting capacity		60KN
Wirerope caliber		20mm
Roller capacity of wireline length		102m
Single line lifting speed	Power rotation Speed 1500r/min	0.438; 0.758; 1.322; 1.921; 2.865m/s
	Power rotation Speed 2000r/min	0.584; 1.011; 1.762; 2.560; 3.820m/s
Transssion gearbox		Auto gearbox
Hydraulic oil box
Duplex gear oil pump		CBY2032/K1020
Displacement		32/16 ml/r
Work pressure		20 Mpa
Max. pressure		25 Mpa
Water brake
Work rotation speed		700-1800r/min
Single line balance speed		3-8m/s
Single line balance load		45KN

 

 

 

 

Project case of borehole drilling rig  

 

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