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Φ114-273mm High Precision Forming Sizing Unit for ERW Pipe Production Line,Breakdown&Fin Pass Forming Stand

Equipment Composition

The tube mill consists of Forming Section, Welding Section, Cooling Section, Sizing Section and Turks Head Section.

Layout

Forming→Feed in

↓

Break Down and Fin Pass

↓

Welding →Guiding→ Squeezing→ Weld part→External Scarfing

↓

Water Cooling

↓

Sizing

↓

Turks Head

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Product Introduction

Overview

Our High Precision Forming Sizing Unit acts as the core forming assembly for high-frequency ERW pipe production lines. It is engineered to gradually bend and form incoming steel strip into a closed tubular profile via progressive roller deformation. Once forming is finished, an HF induction welder joins the strip edges to form a sturdy, reliable weld seam. The freshly welded pipe travels to the cooling zone for regulated heat dissipation. Sizing stands then accurately calibrate pipe outer diameter to meet tight dimensional tolerances, while downstream Turks Head units refine dimensions and perform pre-straightening, yielding finished tubes with consistent roundness, superior straightness and exceptional overall geometric accuracy.

Conventional Forming(W Forming)

This design features enhanced maintainability and operational convenience, while effectively improving on-site safety.
High-precision forming stands adopt mechanical shaft expansion for roll shaft connection, ensuring outstanding dimensional accuracy of pipe diameters.
It delivers superior performance and maximizes production throughput. This solution not only boosts production speed, but also reduces equipment wear and tear to extend the service life of the machinery.

Flexible Forming(FF/FFX)

It not only cuts down roll replacement time significantly, but also reduces roller costs by 40–60%.
Rollers are compatible for producing round and square tubes within a certain size range on the same production line, eliminating frequent replacements for different specifications.
By automating multiple procedures in the tube forming process, FF/FFX technology minimizes manual work, effectively lowering labor costs and reducing human error.

Direct Forming(DFT)

It delivers excellent flexibility. Tube dimensions within the mill’s size range can be adjusted without roll replacement.
Full automation of line operation and roll adjustment cuts labor requirements, boosts productivity, and lowers inventory and associated costs.
Equipped with a built-in recipe database and mobile touch screen, the system enables one-click automatic adjustment of roll angles and positions during product changeovers.

Quick Change System

During product changeover, the entire shaft assembly can be lifted from the horizontal stand. Replacement takes only minutes rather than hours.
The universal shaft is automatically engaged and disengaged by hydraulic cylinders. This allows rolls to be prepared, replaced and adjusted offline without halting production.
While offline roll preparation is underway, a pre-assembled spare shaft assembly can be mounted onto the horizontal stand to finish the changeover. This quick-change system drastically cuts machine downtime.

Layout

Forming→Feed in

↓

Break Down and Fin Pass

↓

Welding →Guiding→ Squeezing→ Weld part→External Scarfing

↓

Water Cooling

↓

Sizing

↓

Turks Head

Specifications

Model╲Spec. Size(mm) Thickness(mm) Forming Method Roll Quick Change
ZJ-GH32 Φ10-32 1.1-2.25 W Roller changing trolley
ZJ-GH50 Φ12-50 1.2-2.75 W Roller changing trolley
ZJ-GH76 Φ32-76 1.5-3.5 W Rafted System
ZJ-GH89 Φ32-89 1.5-3.75 W Rafted System
ZJ-GH114 Φ40-114 1.5-4.0 W Rafted System
ZJ-GH140 Φ48-140 1.5-5.0 W Rafted System
ZJ-GH165 Φ76-165 1.8-6.0 W/DFT Rafted System
ZJ-GH219 Φ89-219 2.0-8.0 FF/DFT Shaft Assembly
ZJ-GH273 Φ114-273 3.0-10.0 FF/DFT Shaft Assembly
ZJ-GH325 Φ165-325 5.0-14.0 FF/DFT Shaft Assembly
ZJ-GH355 Φ165-355 5.0-15.0 FFX/DFT Shaft Assembly
ZJ-GH406 Φ219-406 6.0-16.0 FFX/DFT Shaft Assembly
ZJ-GH457 Φ219-457 6.0-18.0 FFX/DFT Shaft Assembly
ZJ-GH508 Φ273-508 6.0-20.0 FFX/DFT Shaft Assembly
ZJ-GH610 Φ273-610 6.0-21.0 FFX/DFT Shaft Assembly
ZJ-GH660 Φ325-630 6.0-22.0 FFX/DFT Shaft Assembly
ZJ-GH711 Φ325-760 8.0-22.0 FFX/DFT Shaft Assembly

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.

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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.
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Frequently Asked Questions

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.
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.
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.
Yes. We offer full turn key solutions including process design, equipment manufacturing, installation guidance, commissioning, operator training and after sales service.
Absolutely. Our heat treatment and forming systems are specially engineered for high strength steel grades required for deep well oil and gas OCTG pipes.
T/T, L/C at sight are available. Flexible payment terms can be discussed for large scale turn key projects.
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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