Trenchless Drilling Horizontal Direction Drilling Rig (DDW-250) for Pipelaying

• Certification: CE, ISO 9001:2008
• Condition: New
• Drill Hole Diameter: 250-300mm
• Drill Hole Depth: 10-20m
• Bit Type: Depende on Soil Condition
• Drilling Way: Rotary
• Model NO.: DDW-250
• Transport Package: Nude
• Trademark: TXS
• Origin: Beijing, China
• HS Code: 8430412900
• Production Capacity: > 300

Product Description

Horizontal direction drill rig

The DDW-250 HDD Rig adopts the rubber crawlwe chassis. The rotary head driven by chain and motor, pullback force and thrust force is 25T. 















Specifications 

Dimensions
Length/Width/Height Entry angle Machine weight Track width	6400*2280*2150 mm 11.5-17^º 7.6 ton 350 mm
Engine
Make Gross power rating Rated speed Fuel tank capacity	Cummins 125 KW 2200 rpm 200 L
Drilling unit
Travel system Speed Rear stabilizer Hydraulic hose carrier Lighting system	self-propelled on steel track with rubber shoes 0-2.0 km/h, forward & reverse 2 chain type cabin, rotary head
Hydraulic system
Max pressure (rotary & carriage) Max pressure (control sys.) Hydraulic tank capacity	23MPa 21MPa 500 L
Operator station
Cabin Control system	Canopy or full closed, climate control with A/C hydraulic pilot control
Rotary drive
Maximum rotary torque Maximum rotary speed Drive shaft floating	9000 Nm 130 r/min 70 mm
Carriage
Carriage system Maximum thrust/pullback force Max travel speed Max travel distance	rack and pinion drive 250KN 24 m/min, 3.5 m
Wrench assembly
Wrench design Max breakout torque Max makeup force Clamp/grip range	open-top style 20000 Nm 250 KN 50 -120 mm
Pipe loader
Automatic pipe loader Magazine capacity	uses 3 m drill stem. 40 pipes per box
Stake down system
Stake down operation Stake down anchors	Hydraulic 2
Mud pump
Onboard mud pump Volume rate Maximum pressure	triplex piston pump 250 L/min 8 Mpa
Mud minxing unit
Tank capacity Mud pipe inlet	1.7 m^3 2" * 8 m
Drill pipe
Length ( each section) Outside tube diameter Thread type	3000 mm 73 mm NC23/79
Pilot drill bit
Beacon housing	suitable for wireless/wireline transmitter
Tools
Back reamer Diameter	260, 330, 430, 530, 630, 730, 820 mm