DDW-5527/11027

Description

Main Parameters
Dimensions (L×W×H) 8.5 m / 2.28 m / 2.6 m Machine Weight 16.5 T
Rotary Head Max. Speed 126 r/min Rotary Head Max. Torque 27,000 N·m
Thrust-Pull Back Force 0 – 550 kN (upgradable to 1,100 kN) Carriage Speed 57 m/min
Engine Power 221 kW / 2,200 rpm Drill Rod Spec. Ø89 / 102 × 4500 mm

Performance Characteristics
    Hydraulic and electrical systems are engineered for high performance, low failure rate, and straightforward maintenance.
  1. Equipped with a Cummins Stage IV electronically controlled turbocharged diesel engine, delivering strong power output and stable performance.
  2. The rotation circuit uses a closed-loop system with Sauer-Danfoss main pumps paired with Poclain low-speed high-torque motors, ensuring both high torque and high-speed output. In closed-loop hydraulic circuits, Poclain motors provide strong impact resistance and long service life even under rocky and complex formation conditions.
  3. The pull-back main pump is a load-sensing proportional piston pump, offering high efficiency, high pressure rating, and long service life.
  4. Gear and rack transmission with proportional variable pull-back motors and gearboxes drives the rotary head trolley.
  5. The clamp is angled 10 degrees inward toward the operator, making clamp operations easy to observe and monitor.
  6. Welded steel chassis fitted with rubber track shoes for high structural strength and long service life; crawler travel control integrates both manual and electric control for safe, reliable operation.
  7. Standard equipment includes a rotating rod handler, enclosed cabin with air conditioning, and onboard crane — reducing auxiliary crew workload and improving construction efficiency.
  8. Rotation and pull-back use friction-position pilot joysticks with proportional control and infinitely variable speed adjustment for operator comfort and reduced fatigue.
  9. Standard equipment includes a rotating rod handler, enclosed cabin with air conditioning, and onboard crane — reducing auxiliary crew workload and improving construction efficiency.

Technical Specifications
Parameters Description Unit Specification
Engine
Power Rated power kW 221
Rated Speed Rated speed rpm 2,200
Rotary Head Unit
Max. Torque Spindle torque, max. N·m 27,000
Max. Speed Spindle speed, max. rpm 126
Mast Type
Thrust-Pull Back Force Thrust-Pull back force kN 550 (upgradable to 1,100)
Carriage Speed Carriage speed m/min 0 – 57
Entry Drill Angle Entry drill angle ° 0 – 15
Track Chassis (Steel Crawler)
Transport Dimensions L × W × H m 8.5 × 2.28 × 2.6
Weight Machine weight T 16.5
Drill Rod Spec. Drill rod (Dia. × Length) mm Ø89 / 102 × 4500
Mud Pump
Max. Flow Max. flow L/min 800
Max. Pressure Max. pressure MPa 10
Hydraulic System
Working Pressure Working pressure MPa 10
Hydraulic Capacity Hydraulic oil tank capacity L 760
Clamp
Max. Clamp Force Max. clamp force kN —
Max. Break Torque Max. break torque N·m —
Clamp Range Clamp range, max. mm —
Wrench Separation Distance between wrenches, max. mm —

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