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Hole diameter:80-115m, Drill depth:20m, It can reach depth 300 metres under 8 hours working hours - details see: https://www.machineto.com/kaishan-medium-wind-pression-crawler-down-hole-drilling-rig-to-drill-rock-kg920a-10313739

KG920A crawler drilling rig

Technical parameters

Rock rigidity	F=6-20
Diameter of hole	Φ80-115mm
Optium drilling depth	25m
Rotation speed	107r/min
Rotation torque	1400N.m
Lift power	15 KN
Feed way	oil cylinder-chain
Feed distance	3000mm
Walk speed	0-1.8 km/h
gradeability	30°
Ground clearance	290mm
Weight	4000kg
Size of drill machine	4400*2200*2050mm
Sliding carriage pitch angle	Blow 135°,elevation5°, total 145°
Sliding carriage swing angle	Left100°,right45°,total 145°
Drill boom pitch angle	Blow 50°,elevation25°, total 75°
Drill boom pitch swing angle	Left44°, right45°, total 89°
Sliding carriage suppling length	900mm
power	YC2108(33Kw 2200r/min)
Drill pipe	Φ60
Working air pressure	1.0-1.7Mpa
Air consumption	9-16 m³/min

KG920A compare with KY125

	KG920A	KY125	remark
Walking parts	Horsepower+reducer	Steel horsepower	Reduce horsepower pressure, improve its life
Walking pressure	11Mpa	14-16 Mpa
Drill boom parts	New type drill boom		Drill level ,vertical hole at the same time . And lower level hole
Hydraulic system	30pump,large valve, new flow divider and connect	19.2 pump	Increase the flow, decrease the resistance , more tidy shape
Carrier gas system	Live type impacting valve	Ball valve	Better operation
Rotation speed	83r/min(diesel 1700r/min) 107r/min(diesel2200r/min)	55r/min	Improve 50%
Feeding speed	450mm/s	336mm/s	Improve 33%

Auxiliary Power: KaiShan LGCY10/10 Dieselmobile screwair compressor

Mode	Capacity (m3/min)	Working Pressure (Mpa)	Power (kw)	Dimension (mm)
LGCY-13/13	13	1.3	Cummins 6BTA5.9-C180 (132kw)	3600*1900*2200

Introduction:

KG920A is one type machine improved from KY125.It works in open air. On KY125 base.KG920A optimize and upgrade the hydraumatic system,the part of drill boom andpart walking so on.It has better function than KY125,for example : more motor,strongergradeability,more reasonable drilling angle,faster rotation and propulsion speed and so on.Its horse power life is longer and reliability is better.

Characteristics:

Powerful and Reliable Engine of KG920A Drilling Rig for Rock bore Hole

1. Adopt famous 2-cylinder diesel engine as driving force which has advantages of large power, powerful grade-ability, small vibration and reliable operation.
2. Adopt patent diesel engine air inlet regulating device (Patent No. : 200820087606.3) and desert air filter two-stage filter. That strengthens the crawler rock drill’s adaptability to severe environment and lengthened the diesel engine’s service life.


Adjustable boom of KG920A Drilling Rig for Rock Bore Hole

Boom is adjustable. The angle of drilling hole and height of horizontal hole can be adjusted by controlling the stretch-out and draw-back of the hydro-cylinder. That enlarges the drilling hole’s range and improve the machine’s adaptability.

Reliable Hydraulic System of KG920A Drilling Rig for Rock Bore Hole

1. Adopt special hydraulic components. That improves the system’s stability and reliability.
2. Install oil liquid cooling device, to eliminate the exothermic hydraulic oil’s influence to the system
3. Oil supplied by two independent gear pumps, reliable operation, strong adaptability, easy maintenance.
4. Adopt gear transmission and soft connection, possessing compact structure and stable operation.


Humanized Design of KG920A Drilling Rig for Rock Bore Hole

1. Adapt swing-beam type travelling control mechanism. It can be operated at the side or back position, adapt to travelling on the mountain road.
2. Equipped with thoughtfully designed canopy, easy to maintain.

Certification: