Bucking Unit or Hydraulic Breakout Machine is an important tool used for disassembling/assembling, maintaining of all kinds of drill tools, pipe strings and thread connections for all kinds of downhole equipment. XILONG fully rotation torque Bucking Unit is designed for fast and accurate makeup and breakout of premium and non-premium thread tubular equipment. The machine can handle up to a maximum torque of 190,000 ft-lb tracking thread. The Bucking Unit is well suited for repair shops, completion services, offline stand building, and small pipe-thread facilities.
* High automatic level.
* Large torque of screwing on/screwing out.
* Wide diameter range for tubing fittings.
* Without slippage or biting the working surface.
* Quick-tightening screw thread; Provide push-pull foce for work piece
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Model | NJ178-20 | NJ180-30 | NJ273-45 | NJ340-55 | NJ508-70W | NJ760-134W |
Application range | 60.33~177.8mm | 60.33~273mm | 60.33~340mm | 177.8~508mm | 340~762mm | |
23/8″ ~ 7″ | 23/8″ ~ 103/4″ | 23/8″ ~ 133/8″ | 7″ ~ 20″ | 133/8″ ~ 30″ | ||
high gear torque | 0.7KN.M | 5KN.M | 18KN.M | 27KN.M | 70KN.M | 110KN.M |
low gear torque | 20KN.M | 30KN.M | 45KN.M | 55KN.M | ||
Mechanical shift gear | high shift gear: 10~24rpm | 2~12rpm auto variable speed | ||||
low shift gear: 4~12rpm | ||||||
Dual-pump | high shift gear: 1~12rpm | |||||
auto-shift | low shift gear: 0.5~6rpm | |||||
Center Height (mm) | 900 | 1110 | 1150 | 1250 | 1450 | |
Hole Dia. (mm) | 260 | 360 | 420 | 565 | 820 | |
Back tong's trip (mm) | / | 600 | 400 | 500 | 700 | 1000 |
Rated pressure | 16 | |||||
Max. pressure | 31.5 | |||||
Max. flow | 120 (large pump) | 160 (large pump) | 160 | 250 | ||
Lpm | 40 (small pump) | 63(small pump) | ||||
dimensions (mm) | 1500*1040*1471 | 2520*1100*1695 | 2520*1100*1695 | 2760*1332*1830 | 3318*1240*2086 | 2500*2180*2689 |
weight (kg) | 4000 | 4500 | 5000 | 6000 | 8000 | |
Torque Recorder | ZKN-N203 | ZKN-N303 | ZKN-N463 | ZKN-N563 | ZKN-N703 | ZKN-N134 |
dimensions (mm) | 980*685*1080 | |||||
weight (kg) | 120 | |||||
Power Unit | YDZ120/40-22 | YDZ160-37 | YDZ250-37W | |||
Overall Dimensions (mm) | 1750*1080*1140 | |||||
Total Weight (kg) | appr. 2000 |