3" Pipe Machinery

We are engaged in manufacturing, exporting and supplying excellent quality 3" Pipe Machinery in Shijiazhuang, Hebei, China to our valuable clients. The mill is used to produce round pipe of I 21mm-I 76mm with thickness of 1.0mma 4.0mm and corresponding rectangular and square tube from cold-rolled and hot-rolled coil strip.
This mill can be also customized by customer.
Work Flow:
Coil preparation a Coil loading a Uncoilinga Shearing & Welding a Accumulating a Forming a HF Weldinga Remove burr outside a Seam polishing a Water Cooling a Sizing &straightening a Flying saw cuttinga i Straighteninga Chamferingi a Roller conveyor and Packing a Storing
Technical parameters:
Raw materialHot rolled steel, cold rolled steel, galvanized steel
Round tube outer diameterA 21~ A 76mm
Wall thickness Round tube1.0-4.0mm
Square tube20A 20~60A 60mm
Rectangular tube20A 30~40A 80mm
Wall thickness Square & Rectangular tube1.0-3.5mm
Tube welding speed20-90m/min
Equipment list:
1a Double-Cones Uncoiler
Max loading weight of coil:3.0T
2a Shear & End Welder: Hydraulic shear & TIG welding
3a Cage Accumulator or Horizontal Spiral Accumulator
4a Forming and Sizing Mill:
Forming section
Horizontal roll stand:7 stands, Shaft diameter : A 80mm, Material:40Cr or 42CrMo
Vertical roll stand:8 stands, Shaft diameter : A 50mm, Material:40Cr or 42CrMo
Welding section
Seam guide stand:1 set
Squeeze stand:2 rolls
Outer weld bead removal:2 scratching blade
Polishing roll stand:1 set