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Fully Aotumatic Hhd Rig 33ton Pipeline Construction Machine. Automatic Aligning: Clamping device features national patent technology for automatic alignment. Reliable Hydraulic System: Uses American PERMCO main pump and Eaton hydraulic motor for low failure rate. Strong Air Cooling: Equipped with a robust air cooling system for stable operation. High Mud Pump Flow: Mud pump flow reaches 400 L/min for efficient drilling. Durable Tracks: Steel plate covered with rubber tracks for enhanced traction. Precision Filtration: Features American PALL HHT15 series filter for clean hydraulic fluid. Versatile Drilling: Supports drill rod diameter 73mm and pipe diameter 150-800mm.