
High Torque Crawler Rotary Drilling Rig Machine for Pile Foundation Engineering Construction Drilling with Diesel Engine. High Drilling Efficiency: Average 3 minutes to drill 6 meters deep with superior comprehensive economical benefits. Flexible Crawler Chassis: Self-moving excavator chassis with remote control and 360-degree operation capability. Advanced Hydraulic Motor: Durable double motor rotary head with 50% higher working efficiency than similar products. Visual Human-Machine Interface: Visual working condition display with time-delay settings for smooth operation. Comprehensive Warranty: One year warranty with free replacement of defective accessories in next order. Lifelong Technical Support: 24/7 online support and free lifelong technical assistance for all customers. Fast Delivery Time: Ships within 10-15 working days after receipt of payment.