Multifunction Crawler DTH Air Water Well Drilling Rig (HJG-W850A)

• Certification: SGS, CE, ISO 9001:2008
• Condition: New
• Motor: Cummins Diesel Engine
• Drill Hole Diameter: >300mm
• Drill Hole Depth: 500m
• Bit Type: DTH Bit
• Model NO.: HJGW850A
• Drilling Way: DTH Drill
• Type: Crawler
• Usage: Water Well
• Quality: High Quality
• Transport Package: Plastic Film
• Specification: CE, ISO9001: 2008, SGS
• Trademark: HJG
• Origin: Changsha, Hunan, China
• HS Code: 8430412900
• Production Capacity: 10 Sets/Month

Product Description

HJG-W850A DTH Drilling Rig:
 HJG-W series drilling rig which is a versatile internal combustion-driven crawler hydraulic drilling rig, which is designed and manufactured carefully to meet the high requirements for the users. To essure the stability of the rig's performance, key components are imported pieces. The rig can meet the different geological environments geothermal projects, the exploitation groundwater, hydrogeological exploration, pile construction and other project needs, the whole machine is advantageous with a more powerful engine, bigger output torque, higher working efficiency, flexibility, as well as better stability and multifunction, etc. When DTH hammer is applied on rock drilling in the operation, the crushed gravel is discharged by high pressure air-flows, and the drilling efficiency is ten times of the traditional rotary drilling. Cutting drilling or cone drilling can be operated in the unconsolidated layer, rock and mud discharging. In total, the machine is suitable for drilling in complicated geological conditions. The rig can replace or even equal imported production and whose performance-price ration is more outstanding than latter comparing with other competitors.




The technical parameters of the HJG-W850A drilling rig:
 

Type	HJG-W850A Drilling Rig
Drilling depth(m)	500
Hole diameter(mm)	130-350
Wind pressure(Mpa)	1.05-3.5
Air consumption(m3/min)	16-85
Drill rod length (m)	3,4.5
Drill rod diameter(mm))	76,89,102
Axle pressure(KN)	80
Lifting capacity (KN)	260
Slow lifting speed(m/min)	2.5
Fast lifting speed(m/min)	16
Slow feeding speed(m/min)	3.6
Fast feeding speed (m/min)	23
Rotation torque(N.m)	First gear 8500N.m; Second gear 4250N.m
Rotary speed(rpm)	First gear 0-90r/min; Second gear 0-180r/min
Big assistant winch lifting capacity (KN)	40
Small assistant winch lift capacity (KN)	15
Drilling efficiency(m/h)	10-35
Grade ability (°)	21
Travel speed(Km/h)	3.2
Gross weight(t)	12.5
Transportation dimension (mm)	8085*2250*3200
Working dimension (mm)	5498*2250*8941
Drilling condition	Loose soil layer & rock condition
Drilling method	Mud drilling or DTH hammer drilling