Gantry Type Ultrasonic Pipe Testing System for OCTG,Gantry Frame Steel Tube UT Inspection Machine

Equipment Composition

• Pipe Rotation & Feed System
• Multi-Channel Ultrasonic Probe Array
• CNC Servo Traverse Beam
• Ultrasonic Data Acquisition Unit
• Auxiliary Systems

Product Introduction

Overview

Our Gantry Type Ultrasonic Pipe Testing System for OCTG is a fully automatic CNC-controlled NDT system built for 100% full volumetric inspection of seamless and ERW oil pipes, casings and production tubing.

Fitted with high-performance ultrasonic transducer arrays, it delivers high-sensitivity identification of longitudinal cracks, transverse fissures, oblique flaws and laminar separations. Simultaneously, it enables highly accurate full-length wall thickness measurement in one inspection pass.

All inspection workflows and data logging strictly comply with leading industry standards API 5CT and API 5L, perfectly satisfying stringent quality control demands for OCTG manufacturers across the global oil and gas sector.

Working Principle

The machine operates on the ultrasonic pulse-echo technique. High-frequency ultrasonic waves (2–5 MHz) are generated by piezoelectric probes and transmitted into the pipe wall via water-coupling.

No defect: Ultrasound travels through the wall and reflects from the inner surface, producing a back-wall echo.
With defect: Waves reflect earlier at discontinuities (cracks, inclusions, laminations), generating a defect echo before the back-wall signal.
The system calculates defect depth, size, and position based on echo time and amplitude, enabling accurate, repeatable, and high-speed inspection.

Our Core Advantages

High‑precision detection for pipe body, thread and coupling, effectively identifies cracks, porosity, inclusions and other hidden defects conforming to API‑5CT standards.
High‑speed on‑line non‑destructive testing, matches full‑line production rhythm without interrupting continuous OCTG manufacturing.
Multi‑mode integrated inspection: combine ultrasonic, magnetic particle and eddy‑current testing to cover surface and subsurface flaws.
Automatic data recording & real‑time report generation, traceable inspection records for quality audit and customer review.
Intelligent alarm & automatic marking for defective tubes, reduces manual misjudgment and lowers human‑error risk.
Stable performance for long‑hour heavy‑duty industrial operation, suitable for harsh pipe‑making workshop environment.
Easy integration with existing OCTG production line, minimal modification required for on‑site installation & commissioning.
Low maintenance cost, supports long‑term continuous running to guarantee overall line productivity.

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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