1.TQ508-70Y Casing Power Tong (casing tong) is widely used for making-up and breaking-out of casings or pipes. 2.The casing tong features high-efficiency, safety, reliability, labor saving, and ensures connection quality. 3.Tong head is designed as open and equipped with advanced swing-type double jaw assembly, which can secure reliable clamping. 4.This series of casing tongs can be configured with torque device to perform computer monitoring and managing on pressure, torque and rounds. 5.This casing tong has been granted the National Invention Patent. 6.The tongs are designed and manufactured according to industrial standard SY/T5074 and API Spec 7K "SpecificationFor Drilling Equipment". ModelTQ178-16YTQ340-35YTQ508-70YSize rangemm101.6 178114.3 340244.5 508in4 74 139 20Max.pressure MPa182120psi261030452900Working flowL/min110 160110 170110 170gpm29.3 42.729.3 45.429.3 45.4Max. torque Hi. gearkN.m2.4 34.0 5.68.4 10.7ft.lbf1770 22102950 41306190 7890Low gearkN.m15 1826 35.248.9 70.5ft.lbf11060 1327019175 2596037244 52000SpeedHigh gearrpm54 7957 9526 43.6Low gearrpm9 139 154 6.6Sizemm1500×760×7801580×900×8602080×1280×760in59×30×30.762.2×35.4×33.982×50.4×30Weightkg5607601550lb123016703410 Our company owns a dependable quality administration system and has passed the evaluations of API Q1 Registration, ISO9001:2000 Certification and API Products Quality Recognition. Our products have the right to use the Official Monogram of API Spec 7K and API Spec 8A. We'll make our efforts to supply the best surface operation tools and drilling equipment for the oilfields in China and in the world.