Directly Forming to Square, Rectangular Tube

LW2000 ERW Tube Mill, 500x500mm

The square or rectangular shaping is formed before the welding process, with significant advantages in terms of saving both energy and material costs.

Advantages
  • This tube mill directly forms square and rectangular tubes with a smaller inner arc radius, flatter brim, and overall better appearance compared to traditional methods for square forming from round tubes.
  • The whole line features a low load, particularly in the sizing unit.
  • 2.4-3% material is saved by directly forming when compared to traditional methods of square or rectangular forming from round tubes.
  • It uses a multi-point bending method to reduce the forming steps, axial force, and side abrasion is bending step by step. It also saves power consumption and roller abrasion in order to ensure a higher product quality.
  • It uses a combination roller which can produce square & rectangular tubes in a variety of different specifications. This significantly reduces the roller backup requirements and costs by almost 80%.
  • The equipment is easy to adjust and requires no roller replacement for different specifications. The production line is automatically controlled, which significantly reduces the roller changing time, reduces labor, and improves production efficiency.
Production Procedures

Steel Coil → Uncoiling → Flattening/Leveling → Shear & End Cutting → Coil Accumulator → Forming → Welding → Deburring → Water Coiling → Sizing → Straightening → Cutting → Packaging

Basic Technical Parameters
ITEM SPECIFICATIONS
Square Tube 250 x 250 – 500 x 500 mm
Rectangular Tube 300 x 200 – 600 x 400 mm
Wall Thickness 8.0 mm – 20.0 mm
Tube Length 6.0 m - 12.0 m
Line Speed Max. 25 m/min
Welding Method Solid State High Frequency Welding
Forming Method Directly Forming to Square and Rectangular Tubes
Model List
Model Square Pipe (mm) Rectangular Pipe (mm) Thickness (mm) Speed (m/min)
LW400 40×40~120×120 60×40~160×80 1.5~5.0 20~60
LW600 50×50~150×150 70×50~200×100 2.0~6.0 20~50
LW800 80×80~200×200 100×60~250×150 2.0~8.0 10~40
LW1000 100×100~250×250 120×80~300×200 3.0~10.0 10~35
LW1200 100×100~300×300 120×100~400×200 4.0~12.0 10~35
LW1600 200×200~400×400 200×150~500×300 5.0~16.0 10~25
LW2000 250×250~500×500 300×200~600×400 8.0~20.0 10~25

Each production line is strictly designed and made according to customer requirements, so that we are able to offer our customers the line that best meets their needs. Please do not hesitate to contact us for more information.

Other Products