Overview
Our High-Torque Bucking Unit for OCTG Tubular handles makeup and breakout of casing, tubing and coupling connections. Equipped with continuous 360° rotation, torque-turn recording and automatic reporting, it is suitable for API and premium tubular makeup.They protect thread integrity and prevent damage during makeup and breakout.
Our bucking units deliver precise makeup, stable breakout and connection integrity testing for casing, tubing, drill pipes and downhole tools. Replacing manual tongs, they ensure repeatable torque control compliant with API standards for OCTG production and field service.
Three main types are available: wedge roller, fully rotational and planetary clamping.Wedge roller models provide stable, high-rigidity clamping for standard API threads. Fully rotational units offer continuous full-circle rotation and a top-opening design, ideal for downhole tools and large-diameter pipes. Planetary clamping units achieve compact, high-precision gripping for premium connections and small-to-medium tubulars.
Commonly used on OCTG production lines, pipe repair shops and downhole tool assembly stations, they boast high speed, large throughput and reliable performance for mass tubular processing.
Specifications
| Machine Size | Min O.D. | Max O.D. | Min Torque | Max Torque | Application |
| 10″ | 1-5/8″ | 10″ | 500ft-lb | 130000ft-lb | Tubing,drill pipes |
| 15″ | 2-3/8″ | 15″ | 1000ft-lb | 150000ft-lb | Casing,drill pipes |
| 18″ | 2-3/8″ | 18″ | 1000ft-lb | 170000ft-lb | Casing,drill pipes |
| 20″ | 2-3/8″ | 20″ | 1000ft-lb | 190000ft-lb | Large-diameter casing |
| 22″ | 2-3/8″ | 22″ | 1000ft-lb | 190000ft-lb | Large-diameter casing |
| 24″ | 2-3/8″ | 24″ | 1000ft-lb | 190000ft-lb | Large-diameter casing |
| Up to 32″ | 2-3/8″ | Up to 32″ | 1000ft-lb | Custom | Conductor,structural casing |
Product Details
Equipment Composition
Main Mechanical Structure
- Heavy-duty base frame: available in stationary floor-mounted type and split portable type for flexible installation scenarios
- Rotary spindle assembly & main drive head
- Multiple optional clamping assemblies: wedge roller clamping unit, full rotary hydraulic clamping unit, planetary jaw clamping unit
- Travelling carriage and longitudinal sliding feed mechanism
- Inlet and outlet pipe support roller stands
- Full-enclosure safety protective cover
Hydraulic System
- Centralized hydraulic power pack
- Hydraulic cylinders for clamping, feeding and material pushing functions
- Closed-loop proportional control valves for precise torque adjustment
- Hydraulic oil tank, heat exchanger, oil filtration units and complete connection piping
Torque Testing & Real-Time Detection System
- High-accuracy torque transducer
- Rotary revolution and angle encoder
- Pressure monitoring sensors & displacement monitoring sensors
Drive and Transmission Unit
- Hydraulic motor matched with reduction gearbox assembly
- Torque feedback transmission mechanism
- Positioning brake assembly
Electrical Control System
- PLC control cabinet
- HMI touchscreen operation interface
- Embedded data acquisition & logging module to realize full production traceability
- Travel limit switches, emergency stop pushbuttons and safety interlock protection devices
Auxiliary Functional Components
- Centralized automatic grease lubrication system
- Cable trunking system and insulated protective wiring ducts
How to Choose Your Bucking Unit Configuration
GH Petro’s technical engineering team will send you our technical proposal and layout to meet your job.
Pls kindly let us get your specification request as follows:
- D.Range:Minimum and maximum pipe/tool diameter you will handle
- Torque Range:Required make-up and break-out torque,peak and typical
- Thread Family:Premium connection brand(VAM,Hydril,Tenaris…),API spec or proprietary
- Daily Output Target:Joints per shift/day at typical workload
- Floor Space:Workshop length,ceiling height,lifting equipment
- Power Supply:Voltage,phase,frequency and any site limits
- Accessories:Support stands,jaw inserts,CRA handling,jaw protection
Why Choose Our Bucking Machine?
- Precise torque & angle closed-loop control, ensures API standard qualified threaded connection for OCTG casing and tubing
- Large clamping range, compatible with various OCTG pipe sizes, grades and thread types
- Stable hydraulic driving system, effectively avoids thread galling, deformation and damage during make-up
- Automatic pipe centering device, solves pipe bending deviation, guarantees coaxiality of threaded joints
- Human-machine touch screen operation, stores multiple make-up parameters for quick model switching
- Heavy-duty rigid frame structure, long service life, low failure rate and easy daily maintenance
- Real-time data recording and printing function, traceable bucking records for quality inspection
- High bucking efficiency, perfectly matched with OCTG heat treatment & threading production line
Our Achievements
As a professional manufacturer of bucking machines, GH Petro has extensive experience in overseas cooperation. We supply high-quality bucking unit to customers worldwide, including those from the United States, the UAE, Saudi Arabia, Egypt, Indonesia, Malaysia, India, Thailand, South Africa and other countries.
Please feel free to contact us should you have any requirements. Our team will prepare a tailored technical proposal in accordance with your specifications.
Packaging&Delivery
- Steel pallets and iron sheets are packaged together.
- Shipment can be arranged by sea, train or as per the customer’s requirements.
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