Automatic Hydraulic Bucking Unit for OCTG Production Line,Tubing Thread Processing Torque Machine

Equipment Composition

Main Mechanical Structure

Heavy-duty base frame (stationary floor-mounted / split portable type)
Rotary spindle and main drive head
Optional clamping assemblies: wedge roller clamping, full rotary hydraulic clamping, planetary jaw clamping
Moving carriage and longitudinal sliding feeding mechanism
Inlet & outlet pipe support roller brackets
Safety protective cover

Hydraulic System

Central hydraulic power unit
Clamping, feeding and pushing hydraulic cylinders
Closed-loop proportional control valves for torque regulation
Oil tank, heat exchanger, oil filters and connecting piping

Torque & Detection System

High-precision torque transducer
Rotation turn & angle encoder
Pressure and displacement monitoring sensors

Drive & Transmission Assembly

Hydraulic motor + reduction gear set
Torque feedback transmission structure
Positioning brake device

Electrical Control System

PLC controller cabinet
HMI touch screen operation panel
Built-in data logging module for production traceability
Limit switches, emergency stop buttons and safety interlock devices

Auxiliary Parts

Centralized automatic lubrication system
Cable trunking and protective wiring housings

Product Introduction

Overview

This Hydraulic Bucking Unit for OCTG is specially engineered for high-precision makeup and breakout operations of casings, tubings, drill pipes and premium threaded OCTG couplings. Widely deployed in pipe manufacturing plants, OCTG finishing workshops and downhole tool maintenance yards, it fully complies with the torque requirements stipulated in API 5CT and API 7K industry standards.

Two installation forms are available for selection: fixed floor-mounted type and split portable type, covering an extensive diameter spectrum ranging from small-bore tubing to large-diameter heavy-wall casing. Three core clamping mechanisms are offered as optional configurations: wedge roller clamping, full rotary hydraulic clamping and planetary jaw clamping. They are perfectly compatible with standard round threads as well as premium airtight premium connections such as VAM, Hydril and other proprietary special threads.

Powered by a closed-loop hydraulic system and equipped with PLC+HMI intelligent control system, the machine realizes real-time automatic monitoring of torque, turn counts and rotational angle during the entire threading makeup/breakout process. All testing data can be automatically recorded and stored in the onboard database, enabling complete production traceability and permanent quality file archiving.

Three operating modes are supported: manual, semi-automatic and fully automatic, which can flexibly adapt to occasional sporadic maintenance tasks as well as high-yield continuous mass production lines.

Our Advantages

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

About GH-Petro

GH-Petro supplies customized ERW & OCTG pipe mill solutions.We combine domestic craftsmanship and international leading technologies to deliver high-quality equipment and reliable services.

Request a Quote

Order Process

1️⃣ Send Your Inquiry
Tell us your product needs and order details.

2️⃣ Confirm the Solution
We recommend the right product and confirm the price.

3️⃣ Production & Quality Check
We arrange production and check the quality before delivery.

4️⃣ Shipping & Support
We ship the goods and provide after-sales support.

Simple. Fast. Reliable.

Frequently Asked Questions

What types of pipes mill do you supply?

We are a professional manufacturer and we could supply customized mill for ERW pipes and full-range OCTG pipes to meet your request,which include Entry Section,Forming&Sizing,Solid State HF Welder,Straightening Machine,Cold Flying Saw,End Facing Machine,Hydro-tester,UT Flaw Detection Machine,Threading Machine,Bucking Machine and Pipes Packing Machine.

What is your MOQ for Mill orders?

MOQ is flexible for us and one set is feasible.Of course our team also could supply you a complete solution according to your request.

Which standards do your pipe mill machines follow?

All kinds of our equipment are designed for producing pipes meeting API 5CT, API 5L, ASTM, EN, ISO and GB standards, suitable for oil & gas, pipeline, structural and industrial pipe applications.

Can you provide turn key ERW & OCTG pipe mill projects?

Yes. We offer full turn key solutions including process design, equipment manufacturing, installation guidance, commissioning, operator training and after sales service.

Do your machines support high grade OCTG production such as N80, L80, P110?

Absolutely. Our heat treatment and forming systems are specially engineered for high strength steel grades required for deep well oil and gas OCTG pipes.

What payment terms do you accept?

T/T, L/C at sight are available. Flexible payment terms can be discussed for large scale turn key projects.

What is your warranty period?

We provide 12 month warranty for core components from the date of shipment, with lifelong technical consultation and spare part supply service.

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