Products Description
The YNJX210 Planetary Clamping Bucking Unit is a professional hydraulic bucking machine designed for precision make-up and break-out of oilfield tubing, casing, and downhole tools. It supports pipe O.D. 60–140mm (2‑3/8" to 5‑1/2") and delivers a maximum torque of 20 kN·m (14,751 ft·lb) at 16MPa. Equipped with Siemens S7‑1200 PLC and 15" industrial computer, it ensures accurate torque and turns monitoring, automatic operation, and stable performance. Adopting four-point synchronous planetary clamping structure, this tubing casing bucking machine provides reliable, non-slip gripping without damaging threads. Optional non-marking dies are available for chrome and premium threads. Widely used in oilfield downhole tool assembly, production and repair lines. Custom solutions available.
Key Features & Specs
High Torque & API Compliance
Delivers up to 20 kN·m (14,751 ft·lb) maximum makeup torque at 16MPa pressure. Meets API standards with reliable clamping and die marking.
4-Point Planetary Clamping System
Adopts planetary gear rotation mechanism with four-point simultaneous clamping. Provides strong, reliable, and non-slip clamping force with smooth transmission.
Dual-Speed Operation
Equipped with high/low gear shifting mechanism, allowing torque to be adjusted freely. Supports manual operation, automatic button control, and microcomputer automatic control — selectable according to user preferences.
Intelligent Control & Data Traceability
Configured with Siemens S7-1200 PLC and 15" industrial computer, supporting auto/manual operation. All torque and turn data are automatically recorded for complete traceability.
Equipment Parameters
| Specification | Value |
|---|---|
| Model | YNJX-210 |
| Bore Diameter | Φ 210m (~Φ 8-1/4'') |
| Centre Height | 810mm (Customizable, available for larger or smaller sizes) |
| Application | O.D. 139-340mm (Φ 5-1/2'' to 13-3/8'', Customizable for smaller sizes) |
| Speed Range | Rotation speed: Max. Low gear: 12r/min, Max. High gear: 40r/min |
| Make-up/Break-out Torque | Max. make-up/break-out torque: 14,751 ft.lb (20 kN.m) @ 16MPa pressure |
| Application Scenarios | Make-up, break-out tubulars including tubing, casings, and downhole tools or assemblies |
| Torque Display | The computer can display, record and control the torque and turns |
| Control Mode | Simens S7-1200 PLC + 15" all-in-one computer, operation with buttons; The machine will stop automatically reaching the setting torque |
| Torque Accuracy | 150 ft.lb |
| Dies Marking | According to API standards, no damage to pipe accuracy; Optional no-marking dies (Fe-free for special materials like chrome, and no marking on pipe surface) |
| Motor Power | 15kW (Customizable), ABB Frequency converter control |
| Hydraulic System | Max. pressure: 16MPa; Max. flow rate: 120L/min |
| Connections | API (Round & BTC) and Premium connections (TS3SB, VAM, BDS, SEC, AB, ANTARES, T Blue, etc.) |
| Turns Accuracy | Resolution: 1/1000 |
Torque Control Accuracy | Torque ≤ 3120N.m: ±5%; 3120N.m ≤ Torque ≤ 7800N.m: ±156N.m; Torque ≥ 7800N.m: ±2% |
Note: The conversion for 20 kN.m to ft.lb is approximately 14,751 ft.lb.
I. YNJX210 Planetary Clamping Bucking Unit Structures and Features
The YNJX210/20 bucking machine,a heavy-duty hydraulic bucking machine and industrial bucking unit, adopts a planetary gear rotation mechanism with four-point simultaneous clamping. It features strong and reliable clamping force, non-slip performance, and smooth transmission. The machine is equipped with a high/low gear shifting mechanism, allowing torque to be adjusted freely, ensuring both safety and reliability.
The machine supports manual operation, automatic button control, and microcomputer automatic control, which can be selected by the user as needed. And the machine head is used to clamp the coupling and is driven by a hydraulic motor to rotate, enabling the make-up and break-out of threaded connections for oilfield casing. It can operate at two different speeds and torques for thread make-up and break-out.
The hydraulic power source consists of an oil tank, electric motor, oil pump, control valves, etc. The conversion from electrical energy to hydraulic energy is achieved through the motor driving the oil pump. The working pressure of the hydraulic system is regulated by a relief valve, which serves both pressure adjustment and safety protection functions. System pressure is displayed by a pressure gauge. The hydraulic station adopts a low-noise hydraulic pump, effectively reducing noise and ensuring safe and reliable operation.
Main Parts of YNJX210 Planetary Clamping Bucking Machine
1) Power Tong Assembly
2) Backup Tong Assembly
3) Electrical-hydraulic Control System
4) Control System (PLC + Upper Computer)
Key Parts Images
Control Cabinet and Torque-turn Curve of Bucking Unit
Non-marks Dies
II. Scope of Supply
| No. | Name | Qty. (set/pcs) | Remarks |
|---|---|---|---|
| 1 | Bucking machine | 1 set | Includes power tong assembly, backup tong assembly, basement, and two moving supports. |
| 2 | Hydraulic unit | 1 set | Includes hydraulic pump, valves, integrated package, oil tank, motor, fan cooler, and pipeline. |
| 3 | Control cabinet | 1 set | Includes control panel, computer, and control box. |
| 4 | Dies | 10 pcs | — |
| 5 | Micro-dies | 10 pcs | — |
| 6 | Documents | 1 set | Includes QC certificate, warranty certificate, operation & maintenance manual, installation drawing, and e-drawing. |
III. Reference Images of YNJX210 Bucking Unit
1. Standard YNJX210/20 Bucking Unit
FAQ
Q1. What pipe sizes does the YNJX210 planetary clamping bucking unit handle?
A1. The YNJX210 planetary clamping bucking unit supports pipe O.D. 60–140mm (2‑3/8" to 5‑1/2"), covering oilfield tubing, casing, and downhole tools.
Q2. What is the maximum torque of this tubing casing bucking machine?
A2. It provides a maximum make-up and break-out torque of 20 kN·m (14,751 ft·lb) @ 16MPa pressure, suitable for tubing and casing applications.
Q3. What clamping technology does this API makeup breakout unit use?
A3. It adopts a planetary gear rotation mechanism with four-point simultaneous clamping, providing strong, reliable, and non-slip clamping force. The machine head clamps the coupling and is driven by a hydraulic motor to rotate.
Q4. What control modes does this hydraulic bucking machine support?
A4. It supports manual operation, automatic button control, and microcomputer automatic control via Siemens S7-1200 PLC with 15" industrial computer, freely selectable according to site demands.
Q5. What are the advantages of the clamping system?
A5. Four-point synchronous clamping ensures uniform, non-slip gripping without damaging threads. Optional non-marking dies are available for chrome and premium threads. Dual-speed operation allows torque adjustment for different applications.
Boyu Petroleum Equipment owns over 30 years of professional experience in R&D and manufacturing of hydraulic bucking units, steel pipe hydrostatic testing machines, and pipe straightening machines.
If you need professional pipeline hydrotesting equipment and oilfield bucking unit solution, please contact us for detailed parameter and quotation.
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