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    API Pipe Tube Mill Machine

    API Tube Mill-1

    API Tube Mill Machine

    API tube mill is specialized for manufacturing straight welded pipe for petroleum and gas pipelines. Taking hot-rolled steel as raw material, it produce
    required pipes through cold roll forming and suitable welding methods like H.F. welding, submerged arc welding and so on. The whole production line adopts “ZTF” forming technology which is developed by ourselves combined with advanced Japanese FFX technology.

    Pipe-Mill-uncoiler

    Double Cone Decoiler is used to support the coil and provide raw materials for the production line. The reel is cantilever type, pneumatic expansion and contraction; in order to maintain the tension of the strip and prevent loose coiling, the reel adopts pneumatic brake.

    Shearing Welding Machine2

    Shearing and Automatic Welding Machine is connect the strips after cutting the preceding coil tail end and the succeeding coil top end and being welded together by CO2 gas shielding welding to keep the Pipe Welding Line running continuously. Type: Automatic welding by TIG welder

    Tube Mill Accumulator

    The vertical accumulator is used to store steel strips to ensure continuous operation of the host when welding two coils. Occupy small space.

    The horizontal accumulator is used to store steel strips to ensure continuous operation of the host when welding two coils.
    Advantage: The feeding is more stable, without bending, while reducing the resistance of the feeding, it will not cause damage to the galvanized layer surface, and the noise is relatively lower.

    Forming and Sizing Unit

    The steel strip of a certain width is bent into corresponding specifications of round pipe, rectangular pipe or open profile through roll forming. This unit consists of five parts: forming machine, welding machine, cooling part, sizing machine, and straightening machine.

    High frequency welding equipment

    High frequency welding equipment designed for both single and dual coil induction application and HF contact welding processes, these welders offer optimal flexibility for your production. Power range: from 150 to 500kW, Low industrial water consumption

    Cold Flying Saw

    Commonly known as chopping saw, computer flying saw, also called friction saw. High-speed cutting is accompanied by high temperature and sparks, and the cutting end surface is purple.

    API Tube Mill Advantages

    Successfully manufactured China’s largest straight seam API pipe production line with Max OD 720mm

    Apply to high strength steel and big thickness

    Forming process save roller up to 60%

    Electric control and automatic adjustment, high precision,high roller change speed

    Component Brands

    NO.Parts NameBrand
    1Main Drive MotorJiangsu King
    2Main ReducerJiangsu Guomao
    3Motor Driver (DC-digital converter)PARKER
    4Bearing SeatHRB, LYC, ZWZ
    5Pneumatic ComponentsAIR TAC

    Production Process

    Scroll up → Uncoiler → Straightening end → Flattener → Auto-Shear and Welding → Horizontal Accumulator → Strip UT → Forming(ZTF) → H.F. induction welding → Removing external burr → Removing inner burr → Burnishing → Online Detection → Seam annealer → Air cooling → Water cooling → Sizing → Cut off → Roll table → Flattening Test → End-facing and chamfering → Hydrostatic test → Off-line UT test → Drifter → inspection → Weighing and length measurement → Coating & Printing → Packing → Warehouse

    Pipe Mill Flow Chart

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