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OCTG Production Line, Ultrasonic Flaw Detection Machine
Automatic Ultrasonic Flaw Detection Equipment for Oil Tubing,High Speed OCTG Tube Ultrasonic Inspection Machine
Automated CNC OCTG ultrasonic flaw detection system for seamless & ERW oil casing, tubing. High-sensitivity UT detects longitudinal, transverse, oblique & laminar defects with synchronous precise wall thickness measurement, complying with API 5CT, API 5L for tube mill full volumetric NDT inspection.
Hydrostatic Testing Machine, OCTG Production Line
High Pressure Multi-station Hydrostatic Testing Machine Manufacturer in China
High pressure multi-station hydrostatic testing machine serves seamless and welded pipes to detect internal defects. It uses radial large-gap or end face sealing and maintains standard pressure to check leaks. Dual auto/manual control ensures safe, reliable and eco-friendly operation; all test data is stored in database for traceability and inquiry.
End-face&Chamfer Machine, OCTG Production Line
End-face&Chamfer Machine
Custom pipe end facing & chamfering machine built for high-efficiency steel pipe end processing. The all-in-one design covers facing and chamfering to meet production line pre-processing requirements. It features stable performance, high efficiency, superior precision and flexible operation, ideal auxiliary equipment for modern steel pipe manufacturing.
OCTG Production Line, Straightening Machine
High Duty API OCTG Straightening Machine,Tailored Pipe Mill Straightening Equipment
Our API OCTG Straightening Machines adopt full automation with integrated entry and exit conveyors. Heavy-duty structure ensures great rigidity and stable operation. It processes carbon steel, API and seamless pipes, fitting various diameters, wall thicknesses and line speeds, supporting both online and offline operation.
Cutoff, OCTG Production Line
Φ114-165mm Orbital Milling Cutoff for OCTG Pipe Production Line,Steel Pipe Orbital Milling Cutoff Unit
Orbital Milling Cutoff is an advanced in-line cold flying cutting system for ERW, seamless & OCTG pipe mills, replacing flying shear and flying saw. It tracks running tubes synchronously for stop-free fixed-length cutting with single cold saw blades, producing burr-free, distortion-free pipe ends free of heat-affected zones for round steel tubes, casing and tubing.
OCTG Production Line
Heat Treatment
Our OCTG heat treatment line covers quenching, tempering, normalizing and annealing for seamless casing, tubing and drill pipes, meeting API 5CT grades J55, K55, N80, L80, P110, Q125. Roller-hearth or induction heating delivers precise uniform heating; spray quenching & air cooling stabilizes mechanical properties. Fully automatic workflow ensures low energy consumption, high efficiency and consistent quality for mass OCTG manufacturing.
OCTG Production Line
Hydraulic Expander for OCTG Production Line
This hydraulic expander serves as core forming equipment for OCTG lines, expanding and calibrating seamless casing, tubing and drill pipes to eliminate ovality, wall thickness unevenness and dimensional errors. Featuring precise hydraulic drive and modular dies for even radial expansion, it fits carbon, alloy and high-strength steel, ensures stable dimension consistency, and aligns with downstream processes to satisfy API Spec 5CT requirements.
OCTG Production Line, Solid State HF Welder
High Efficiency Solid State HF Welder for OCTG Casing & Tubes,ERW Tube Solid State High Frequency Welding Machine
Solid-State HF Induction Welder adopts AC-DC-AC variable-frequency topology with three-phase thyristor rectifier and LC DC bus filter. Modular MOSFET inverter with resonant tank & matching transformer realizes power synthesis, impedance matching and isolation, equipped with fast overcurrent protection to guarantee stable and secure welding operation.
Forming & Sizing Group, OCTG Production Line
High Precision Pipe Forming & Sizing Unit,Forming and Sizing Stands for OCTG Production Line
Our ERW tube mill covers forming, HF welding, cooling, sizing and Turk head straightening. It supports W, FF/FFX flexible and DFT direct forming; quick roll change system slashes downtime, ensures precise dimension, cuts roller & labor cost and lifts output for round & square pipe production.
Cutoff For ERW Mill Line, ERW Tube Mill Line
Φ76-127mm ERW Mill Line Burr-Free Orbital Milling Cutoff Equipment,Synchronous Flying Orbital Cutoff for OCTG
New-gen automatic inline Orbital Milling Cutoff upgrades traditional flying shears and cold saws for ERW, seamless pipe and OCTG production lines. It enables synchronous continuous cold cutting without line downtime, producing burr-free, deformation-free & HAZ-free ends for carbon, alloy, stainless steel pipes, OCTG casing and tubing.
ERW Tube Mill Line, H.F.Induction Solid State Welder For ERW Mill Line
High Efficiency ERW Tube High Frequency Welding Machine,Solid State HF Welding Equipment for OCTG
Solid-state HF induction welder features mature AC-DC-AC topology with 3-phase thyristor rectifier & DC bus LC filter. Modular parallel MOSFET inverters adopt matching transformers for power synthesis, impedance matching and isolation, with fast overcurrent protection for steady and secure running.
ERW Tube Mill Line, Forming&Sizing Group For ERW Mill Line
CE Certified ERW Tube Forming Sizing Mill with Quick Change System,OCTG Automatic Adjustment Forming & Sizing Unit
ERW tube mill consists of forming, HF welding, cooling, sizing and Turks Head pre-straightening sections. It supports W, FF/FFX flexible and DFT direct forming; quick-change system cuts roller cost, labor and downtime, ensuring precise dimension and high throughput for round and square pipe production.

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