Tube Mills

Carbon Steel Tube Welding Mill Machine – High Frequency Straight Seam Tube Mills

Carbon Steel Tube Welding Mill Machine – High Frequency Straight Seam Tube Mills

This RT50 to 76 tube mill is the most popular tube mills in 2017 especially for producing the pipes from 19-76.5mm with 0.8-2.5mm thickness.

Product details

Nantong Reliantt offers almost 30 standard models, covering range from 3/8’’(8mm) up to 10’’(273mm) diameter (corresponding square & rectangular tubes) and wall thickness from 0.3mm up to 12.7mm, also accept customized machines.


Model: RT50 to 76 (76.2mm×2.5mm)

The RT50 to 76 carbon steel tube mill is intended for manufacturing of round/square pipe of Φ19mm-Φ76.2mm with Thickness of 0.8mm–2.5mm from cold-rolled, hot-rolled and galvanized coil strip. 


Features of RT50 to 76 Pipe Making Machine

Nantong Reliantt High Frequency ERW Straight Seam Steel Tube Mill is a series of machines that builds longitudinal weld seam pipe with steel strips of certain width. It starts by uncoil and flatten the slit steel coils into steel strips. The flattened steel strips will be inserted into the forming machine and the rollers in the machine will bend the strip to a round pipe shape. The round pipe will then be sent into the weld box where the tube is welded by a high frequency or solid state welder. The welded pipe will be formed to expected shape (round/ square/ rectangle etc) or size in a sizing machine. Finally the pipe will be cut to length and bundled.


Samples of Carbon Steel / Galvanized Steel Pipe Mills

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Process Flow of Steel Pipe Mills

Steel strips ---- double side decoiler ---- shear and butt welder ---- vertical accumulator ---- pinch roll + leveler, forming device, welding device ---- cooling unit ---- sizing and turk’s head ---- computer saw --- run out rack 


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Technical Parameter for RT50 to 76 straight seam Tube Mills

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Machine Configuration 

Double-side Un-coiler (Manual expansion)1 unit
Shear and butt Welder1 unit
Vertical Accumulator1 unit
Forming, Welding and Sizing mill1 unit
Computer-controlled Tracking Cutting Saw (Circular Saw Cutting)1 unit
Finished Pipe Passing Conveyor (Run out table)1 unit
200KW Solid State High Frequency Welder1 unit
Pneumatic System 1 unit
Electrical System with PLC Control and DC Drive Control System.1 unit


Delivery time:  90~120 days 


Shipping container:  3×40’HQ 


Photos for Reference  

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Hydraulic DecoilerHorizontal AccumulatorForming
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WeldingSizingTurk's Head


Product Applications

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