Our company, Hangzhou Roll Forming Technology Co., Ltd, is a China stainless steel tube mill manufacturer and steel tube mill manufacturers, has engaged in designing and manufacturing roll forming, coil processing equipment and stainless tube mills   for 17 years.

Stainless Steel Tube Mill Line is specially used for producing stainless steel straight seam welded pipe. It made by refined materials in high precision and equipped with fixed length cutting saw. The main machine includes forming, welding, sizing, and straightening device. The composition of equipment is from decoiler to the run-out table. Rolling speed can be adjusted correspondingly within a suitable range of pipe diameter and wall thickness.

Working flow of Stainless Steel tube mill line：

Raw material (stainless steel coil)

 Decoiling 

Shearing and butt-welding

Guiding device

Forming and shaping

TIG welding 

Polishing burrs

Cooling

Sizing 

Run-out table

Introduction of main components：

 

• Decoiler:

Double-side 360ºrotary , which insure steel coil feeding alternatively and make steel strip going into accumulator freely.

• Shearing and butt-welding machine

which insure double steel coil shearing tidily and then welding together and leveling weld seam.

• Forming, welding and sizing unit

(1)Feeding & leveling device:Form: Up and down rolls are passively leveled for straightening strip steel before it is fed into forming unit.

(2)Forming device:

Mainly roughly mill-forming steel strip and controlling weld seam.

• Guiding extruding and welding scraping apparatus:

• One set of guide roll stand for controlling direction of pipe seam to insure pipe seam flatly and straightly entering into extruding rollers.
• Two sets of extruding roll stand for controlling weld seam to realize successful welding.

c. Two sets of scraper frame for scraping outside weld seam

(4)Sizing device: Mainly fine shaping pipe after welding and controlling size accuracy.

(5)Roughly straightening machine frameIt is mainly used for roughly straightening of finished pipe.

(6) Main driving system: The main unit is connected with main reducer by main motor and transmits power to gearbox branches, then gearbox branches drive upper and down shafts on horizontal roll frame.