Advanced large-diameter Pipe Mill with JCO(E)

LSAW Tube Mill Line

The large diameter steel Pipe processing methods has different Type. ACA company focuses on the JCO technology. LSAW(Longitudinally Submerged Arc Welding) steel pipe has the characteristics of relatively simple process and fast continuous production, and is widely used in oil and gas, water transmission, engineering, offshore projects.

The line pipe forming operations can be divided into four categories on the basis for line pipe manufacturing at different stages namely plate edge milling, plate edge crimping, J-C-O (E) forming and mechanical expansion.

Specification

JCOE LSAW Pipe
Outside Diameter	Φ406mm - 1626mm (16" - 64" )
Wall Thickness	6.0 - 75mm (1/4" - 3" )
Quality Standards	API、DNV、ISO、DEP、EN、ASTM、DIN、BS、JIS、GB、CSA
Length	6 - 12.5m
Min.Yield Strength(Mpa)	245-555(X42-X80)

Introduction

1. Pre-Curved Machine

● The frame structure: good overall rigidity and high precision;

● The CNC mobile base can easily adapt to various steel plate widths and meet making Φ406-1626mm steel pipeline;

● The cylinder system adopts a servo control system and is independently controlled to ensure the uniformity of the pre-bending edge;

● Pre-bending speed: 15mm/s.

2. High-precision CNC Forming Unit

● The CNC workbench with human-machine interface, To intuitively view and adjust the whole production process;

● Our forming Unit option:2500T-12000TON.

3. Steel Pipe Pre-welding

Adopt Germany technology, the steel pipe jointing and pre-welding are carried out continuously and completed at the same time. Laser tracking technology.

4. Internal and External Welding Unit

● CNC workbench, precisely controls the conveying speed of the pipeline conveyor to ensure uniform speed and no impact vibration; Real-time Online monitoring of welding status. Achieve high standards for welds on oil and gas pipelines;

● Welding speed: 0.5-4m/min, has stepless speed regulation and variable frequency speed regulation.