Raw material parameters

  Coil width: 350~750mm
  Steel coil material: Q235
   Outer diameter of steel coil: Φ1000~Φ1800mm
   Inner diameter of steel coil: Φ508~Φ760mm
   Single roll weight: Max10 t
  Steel plate thickness:δ=3~10mm

Product parameters

  Steel pipe implementation standard: SY5037
  Outer diameter of steel pipe: 219~1020mm
  Steel pipe wall thickness: 3~10mm
  Steel pipe length: 10~12m
  Conveying speed: 0.5~2.5m/min
  Welding speed: 0.8~2.2m/min

Application of Spiral Weleded Pipe Unit:

for liquid transportation: water supply and drainage.
for gas transmission: gas, steam and liquefied petroleum gas.
for structure: pile driving pipe, pipe for bridge, wharf, road, building structure, etc.
the product specification of spiral welded pipe unit of our company is pipe diameter φ 90~ φ 3500mm, Wall thickness: 1 ~ 25mm, all models made of Q235 ~ X80

Usage:

1.High strength oil and gas pipes which meet China national standard GB/T9711.2-1999 and American Standard API-5L. 
2.Low-pressure fluid pipeline, city gas transmission, supply and drainage water pipeline.
3.Piling steel pipes used in engineering construction.
4.Industrial structure pipes;
5.Steel pipes for other purpose.
 

Process flow of spiral welded pipe unit:

Winding up → uncoiling → leveling → shearing and butt welding → disc shear → edge milling → delivery machine → pre bending guide plate → forming → internal welding → external welding → cutting → pulling out → flat head chamfering → hydrostatic test → collection of finished products