Factory-first equipped dual-loop hydraulic disc-brake system with 3 sets of 4000m-route drilling rig winch in China. Since 1999, we have successfully delivered 5 sets of brake-disc systems to Daqing Oilfield and continuously improved our technology. Our disc-brake devices are now widely approved domestically, with 460 sets of mechanical and electronic brake handles supplied for 1500m-12000m route drilling rigs.

• Equal matching of service tongs and safety tongs ensures maximum brake torque exceeding national standards
• Electric control pneumatic valve prevents overheating and valve blockage in electronic brake handle loop
• Dual fail-safe design in safety tongs control loop with redundant hydraulic direction changing valves
• Equipped with hand pump for operation without power or pneumatic supply
• Oil feeding and self-circulating filtration device reduces hydraulic system pollution and breakdowns