Steel Pipe / Tube Forming Machines

The tube & pipe mill machine is an automation system to produce pipes, square tubes, shaped tubes for furniture, steel structures, hand rails, piping, heat exchangers and so on by slit coils(skelp). It can be divided into ERW(Electric resistance welding) type, TIG welding type and PLASMA-TIG welding type.

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Product Description

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Tube Mill Forming Section

Coils are continuously formed into open seam tubular shape before welding. In-house roll tooling design with COPRA Roll Form Software and experienced design engineer ensures optimum forming pass with smooth material flow throughout the forming process. It is important to ensure coil edges are evenly formed to ensure accurate weld seam presentation at weld rolls. Forming section consists of entry side guide, flattener, breakdown section, cluster rolls and fin pass section. Mill stand constructions are heavy-duty and precision-machined to ensure mill accuracy and reliability.

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tube mill forming section

Tube Mill Welding Section

Weld section consists of seam guide stand, squeeze roll stand, bead scarfing, seam ironer, cooling tank and optional internal bead scarfing. Where necessary, a de-twisting stand can be installed between the cooling tanks which allow seam adjustment before sizing, especially for square and rectangular tubes.
Squeeze roll stand constructions are heavy duty and precision-machined to withstand the heavy separating force at weld area, yet with high precision for even the finest adjustments.
The proper welding section set-up and arrangement in relation to induction welding are important to ensure effective and efficient welding operation. Squeeze roll diameter, seam guide, welding coil, impeder and impeder cooling affects the rapid heating of the strip edge to be welded, specifically critical for small tube induction welding below diameter 12.7 mm.

tube mill welding section

Tube Mill Sizing Section

Welded pipe passes through the sizing section to uniformly reduce the OD and perfect its roundness to the required tolerance. For square and rectangular pipe, sizing stands gradually shape the tube to the required shape and tolerance. Sizing section consists of driven sizing stand, side roll stand and turk head. For smaller tube, additional straightener is provided to reduce the material stress to ensure final product straightness. Both driven sizing stand and side roll stand are of similar design and made of heavy-duty construction similar to forming stand. The final pass will be the turk head which controls the final shape, tolerance and straightness of the pipe before cut-off.

tube mill sizing section

JIANGSU NEW VICTOR INDUSTRIAL CO.,LTD is a manufacturer of welded pipe production lines for more than 30 years. we can supply the complete tube mill line. and we also have the experience in turnkey projects.

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