Erw Carbon Tube Mill Machine

General Description

The Erw Carbon Tube Mill Machine can continuously produce a certain range of square and rectangular steel pipes. It adopts the international advanced level of multi-radius combined forming process and high-frequency welding, and is formed by multiple symmetrical bending. Specifically, it can be divided into small side bending, side bending, closed-end free bending, high-frequency welding, finishing straightening and sawing to produce pipes of accurate size and excellent quality.

Advantages 

The Erw Carbon Tube Mill Machine adopts the advantages of similar equipment at home and abroad, and has a novel design for each component of the production line. Using advanced technology, it adopts PLC automatic control system and British Eurasian digital speed control device, which makes the production line work reliably and easy to operate and maintain. Moreover, this Erw Carbon Tube Mill Machine can realize fully automatic size change by computer control.

Technical Specification

The direction of Operation: (To be confirmed by Buyer)

Total Power: 900kW

Compressed Air: 5m²/min

Pressure: 0.4~0.7MPa

Capacity of cooling liquid: 20t/h~30 t/h

Tube welding speed: 20-60m/min (Square and Rectangular Hollow Shapes are produced at lower speeds depending on side to wall thickness ratio)

Raw Material Specification

Material: Carbon Steel, Cold or Hot Rolled pre-slit strip coils of weldable grade with max. 0.2% carbon.

Material.: σb≤345Mpa σs≤520Mpa

Strip thickness: Min 1.2mm Max 4.5mm

Width of strip: 120~ 280mm

Strip Width Tolerance: ±0.1 mm

O.D of coil: φ1000-φ1800mm

I.D of coil: 508mm (To be confirmed by Buyer)

Coil weight: 5.0T( Max)

Product Specifications

Round Tube diameter: Minφ38.1mm Max φ90mm

Round tube wall thickness: Min1.5mm Max 4.5mm

Square tube: Min 40x40mm, Max 70x70 mm

Rectangle: Min30x50 mm, max 40x100 mm

Wall thickness square & rectangle tube: 1.2- 4.5 mm

Sizing Length: 4m~12m

Cut Length Tolerance: ±3.0 mm

Tube Thickness/Diameter Ratio: Min 0.02 Max 0.10

Tube Standard: Apply to relevant international standard ASTM A513, ASTM A500

Outside Diameter Tolerance: ±0.2% or ±0,15

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