China Trenchless Horizontal Directional Drilling Rig Ddw-250 for Pipe-Laying Project

Horizontal direction drill rig (DDW-250)
The DDW-250 HDD Rig adopts the rubber crawler chassis. The rotary head is driven by motor and chain. It is equipped with 240L/ min mud pump and open-type control cabin.


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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