- Model： YNJQ400
YNJQ 400 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 15"
API (round & BTC)and Premium connections(with or without shoulder)
Scope of supply
Computer torque recorder, saving records, printing curve report
Hydraulic Power System
Specifications of the bucking machine YNJQ400
2) Bore diameter：￠400mm
3) Centre hight：1373mm
4) Apllication：2-3/8"" to 15"；
5) Speed range:
It takes double pump air-cooled hydraulic power, manual stepless speed control the rotary speed, rotating head speed is :0.5-5r/min。
6) Make –up torque
a) Max. torque
The Max. make-up/break out torque is80KN.m@ 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) Torque accuracy：200 ft-lbs，
9) Dies marks： according to API, and no damage for the workpiece accuracy
Normal Die marks by YNJQ type bucking machine
2-3/8’’ to 2-7/8’’
3-1/2’’ to 5-1/2’’
No marking dies on CRA surface by YNJQ type bucking machine
Depth of marks ≤0.2mm
11) Motor power：30Kw
12) Hydraulic system：Max.pressure：20MPa，flow rate：50-240L/min