YNJQ 470 hydraulic bucking unit is a machine designed for disassembly and assembly through 360° continuous rotation and is provided with high precision torque automated test system. This machine is mainly used for disassembly and assembly of some cylinder threaded connection parts such as casing collar, tubing collar, oil well pump collar, tool joint, packer adapter, downhole tool and drilling tools in oil field. In addition, it is also feasible to additionally install eccentric adjustment unit, disassemble and assemble eccentric workpiece.
2-3/8"" to 17"
API (round & BTC)and Premium connections(with or without shoulder)
Scope of supply
Computer torque recorder, saving records, printing curve report
Hydraulic Power System
2) Bore diameter：
3) Centre height：1350mm
4) Apllication：4-1/2" to 18"；
5) Speed range
The 55 KW motor which is controlled by frequency converter drives the HY250P04 plunger pump, air-cooled hydraulic power, manual stepless speed control the rotary speed, power head speed is :0.8-7r/min(55kw).
6) Make –up/Break-Out torque
a) Max. torque
The Max. Make –up/Break-Out torque is 216KN.m.（160000lb.fts）at 20Mpa pressure
b) Torque display
The computer can display, record and control the torque and turns.
7) Control mode
PLC+15” tablet PC，operation with buttons. And the machine will stop automatically reaching the setting torque.
8) Dies marking：according to API, and no damage for the workpiece accuracy, non-marking dies for CRA.