508mm Large Diameter Casing Threading Machine,OCTG Production Line Threading Lathe Equipment

Equipment Composition

It is designed to accommodate a wide range of pipe lengths and diameters, supporting machining of NPT and BSPT standard threads.

Main Functional Components of Thread Lathe

1.Bed

2.Headstock

3.Feed System

4.Tool Post / Tool Slide

5.Cooling & Lubrication System

6.Electrical System

7.Machine Guarding

8.Safety Protection

Product Introduction

Overview

Machine Name: CNC Pipe Thread LatheMachine Specification:

Pipe OD: 26.67 mm – 508 mm
Pipe Length: 1.5 m – 12 m (customizable)
Max. Swing over Bed: According to customers’request
Max. Swing over Cross Slide: According to customers’request
Spindle Bore: According to customers’request

Pipe Thread Types: API Spec 5B, API Spec 5CT, API Spec 7‑1, API Spec 7‑2, various metric and imperial threads for drilling tools, oil tubing & casings, as well as premium special threads.

Our large diameter casing threading machine is professionally developed and optimized for precision machining of OCTG products for the petroleum and energy industries, including oil well casings, production tubings and pipe couplings. Fully compatible with standard API threads and a wide range of high-performance premium special connections, it satisfies diverse custom processing demands for high-end tubular goods.

Built with outstanding structural rigidity, intelligent control system and stable operational performance, this machine maintains consistent high machining accuracy and outstanding productivity under continuous industrial operation. It minimizes dimensional deviations and thread profile errors arising from equipment instability, securing superior product consistency and pass rate.

Custom-engineered for harsh working environments and stringent quality standards of global oilfields and energy sectors, this CNC threading machine acts as a highly reliable and cost-effective core processing solution for professional steel tubular production lines.

Our Advantages

High Rigidity & Stability: Heavy‑duty cast iron bed + reinforced spindle housing, minimal vibration during heavy cutting.
Premium Thread Quality: CNC full closed‑loop control ensures API/premium thread precision; suitable for high‑pressure wells.
High Efficiency: 4‑axis simultaneous motion + fast hydraulic chuck; cycle time reduced by 30% vs. conventional lathes.
Multi‑Function: One machine for external threading, internal threading, facing, chamfering, and grooving.
Easy Maintenance: Modular design, standard components, and remote diagnostic support.
Safety & Reliability: Overload protection, emergency stop, and full enclosure with safety interlocks.

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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