DDW-3515AT

Description

Main Parameters

Dimensions (L×W×H) 6.7m / 2.28m / 2.6m Machine Weight 10.5 T
Rotary Head Max. Speed 225 / 237 r/min Rotary Head Max. Torque 15000 / 2700 N·m
Thrust-Pull Back Force 0 – 350 kN Carriage Speed 38 m/min
Engine Power 153 kW / 2200 rpm Drill Rod Spec. Φ89×3000 / Φ50×3000

Performance Characteristics

  • The 3515AT rig is a full-terrain pipe-laying drilling rig, suitable for pipeline installation across a wide range of complex ground conditions.
  • Rotary thrust/pull adopts PLC-constant-power electro-hydraulic control with a load-sensitive system, improving overall efficiency by 20% compared with conventional open-loop systems. It also enhances engine fuel efficiency, lowers operating costs, and delivers energy-saving and environmentally friendly performance. The hydraulic pump is a piston pump with higher pressure rating, longer service life, and greater system efficiency.
  • Two-speed range with proportional control for rotation, thrust/pull, and crawler travel, providing infinitely variable speed adjustment.
  • Rotation and thrust/pull are controlled by a multifunctional joystick that integrates all main operating movements into one ergonomic control point — simple, convenient, comfortable, and efficient.
  • The rotation and thrust/pull functions are driven by imported Rexroth piston motors, delivering high torque and strong impact resistance.
  • Gear and rack transmission with double hydraulic motor reducers drives the rotary head trolley forward and backward.
  • Crawler travel is controlled from the main control station for safe and reliable operation.
  • The boom lifting mechanism keeps the tracks firmly on the ground even at the maximum drilling angle, effectively ensuring rig stability during both drilling and pull-back operations.
  • The clamp is angled inward toward the operator, making clamp work easy to observe and monitor.
  • A clamp spring buffer device prevents accidental drill-rod thread or clamp damage caused by operator error.
  • Welded steel chassis fitted with rubber shoes adapts to various road surfaces, offering high structural strength and long service life.
  • Equipped with a mechanical arm, enclosed cabin, and standard air conditioning, it provides a comfortable working environment for drilling crew members and improves overall work efficiency.

Technical Specifications

Parameters Description Unit Specification
Engine
Power Rated power kW 153
Rated Speed Rated speed rpm 2200
Rotary Head Unit
Max. Torque Spindle torque, max. N·m 15000 / 2700
Max. Speed Spindle speed, max. rpm 225 / 237
Mast Type
Thrust-Pull Back Force Thrust-pull back force kN 0 – 350
Carriage Speed Carriage speed m/min 0 – 38
Entry Drill Angle Entry drill angle ° 15 – 20
Track Chassis (Steel Crawler)
Transport Dimensions Dimensions (L×W×H) m 6.7 / 2.28 / 2.6
Weight Machine weight T 10.5
Drill Rod Spec. Drill rod (Dia. × Length) mm Φ89×3000 / Φ50×3000
Mud Pump
Max. Flow Max. flow rate L/min 350
Max. Pressure Max. pressure MPa 10
Hydraulic System
Working Pressure Working pressure MPa 30
Hydraulic Oil Capacity Hydraulic tank capacity L 530
Clamp
Max. Clamp Force Max. clamp force kN 350
Max. Breakout Torque Max. breakout torque N·m 40000
Clamp Range Clamp through-hole dia., max. mm 145
Distance Between Wrenches Max. distance between wrenches mm —

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