
Hf856A Hydraulic Rotary Pile Drilling Rig. Telescopic Mast Structure: First domestic rotary rig with telescopic prop mast for easy transport without disassembly. Compact Transportation: Comprehensive transport with front lodge without disassembly, reducing usage and transport costs. Low Altitude Operation: Min vertical height adjustable to less than 13m, suitable for low altitude over-limited construction. High Safety Design: Cross head pin fixes drill pipe and chuck, guaranteeing verticality and increasing safety factor. ISO Certified Quality: Products hold ISO, QC, and TUV certificates with strict testing before leaving the factory. Professional Manufacturer: Established in 1998, exporting to over 50 countries with 20+ years of industry experience. 24/7 Technical Support: Engineers available for on-site guidance and training; 24-hour response to quality problems. Fast Delivery Time: Generally deliver the machine within 7 days; peak season lead time within 15 workdays.