China Trenchless Horizontal Direct Drill Ddw-250

Horizontal direction drill Machine DDW-250
DDW-250C drilling rig is designed as integral rubber tracked drive with self-powered function which is featured as convenient transportation and flexible movement. The drilling rig adopts rack and pinion for feeding and pull back which has high efficiency and reliable performance, also convenient for maintain. Low speed but big torque cycloid motor for rotary, pullback is drived by piston motor and reducer, famous brand hydraulic pump and motor supplied from American invested company, in order to supply reiable performance, the hydraulic components we use are all supplied by the best manufacturer in domestic and abroad. The control consoles can be rotary to have the best review. Closed operating cab could equipped with air conditioning, which is comfortable for operator, use pipe loader to reducce the intensity of labor, work efficiency.




Technical Specificationos

DimensionsLength/Width/Height
Entry angle
Machine weight
Track width6400*2280*2150 mm
11.5-17º
7.6 ton
350 mmEngineMake
Gross power rating
Rated speed
Fuel tank capacityCummins
125 KW
2200 rpm
200 LDrilling unitTravel system
Speed
Rear stabilizer
Hydraulic hose carrier
Lighting systemself-propelled on steel track with rubber shoes
0-2.0 km/h, forward & reverse
2
chain type
cabin, rotary headHydraulic systemMax pressure (rotary & carriage)
Max pressure (control sys.)
Hydraulic tank capacity23MPa
21MPa
500 LOperator stationCabin
Control systemCanopy or full closed, climate control with A/C
hydraulic pilot controlRotary drive Maximum rotary torque
Maximum rotary speed
Drive shaft floating9000 Nm
130 r/min
70 mmCarriageCarriage system
Maximum thrust/pullback force
Max travel speed
Max travel distance rack and pinion drive
250KN
24 m/min,
3.5 mWrench assembly Wrench design
Max breakout torque
Max makeup force
Clamp/grip rangeopen-top style
20000 Nm
250 KN
50 -120 mmPipe loaderAutomatic pipe loader
Magazine capacityuses 3 m drill stem.
40 pipes per boxStake down systemStake down operation
Stake down anchorsHydraulic
2Mud pumponboard mud pump
Volume rate
Maximum pressuretriplex piston pump
250 L/min
8 MpaMud minxing unitTank capacity
Mud pipe inlet1.7 m3
2" * 8 mDrill pipe Length ( each section)
Outside tube diameter
Thread type3000 mm
73 mm
NC23/79Pilot drill bitBeacon housingsuitable for wireless/wireline transmitterToolsBack reamer Diameter 260, 330, 430, 530, 630, 730, 820 mm
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