spiral pipe unit/spiral welded pipe mill/ pipe production line/ pipe making machine

spiral pipe unit Dia: 508mm-2400mm Coil width: 1200-2000mm Thickness: 8-25.4mm

The introduction of the spiral pipe unit:

The steel coils are unfolded and leveled by the mill equipment. And they are sent to the forming machine in a certain angle. Supplemented by a certain angle, the continual pipes are formed in the principle of three-roll rolling machine. Continual spiral welding is welded by submerged-arc welding machine.

According to the different function of our products, the spiral welded pipe mills are divides in to API standard model, national standard model and special purpose model. API standard model mainly produces the delivery pipe with petroleum or natural gas (long distance).the material and quality of the steel pipe need to be very good. The requirements for mill equipment and testing equipment also are very high. National standard model produces the pipe used for short distance delivery of natural gas or water, the pipeline construction in the city, the structure pipe, column pipe and so on. The requirements for the material and quality of the steel also are very high, second only to that of API standard. Special purpose mill is used for some special purposes. For example, our company developed the special 60~214 mill aiming at the function of petroleum filter.

The specification of our products is fromΦ9 0 toΦ3500. The thickness of the wall is from 1mm to 25.4mm. The material of our products is from Q235 to Q235, X80. Besides, special material such as the stainless steel is included. All of them cover all the mills.

Production process:

Loading coil-uncoiling-leveling-cutting and butt welding-Circle shearing-edge milling machine-delivering machine –prebending and guide board-forming-internal welding-external welding-tracking off-extracting-trimming-hydraulic testing-flat head chamfering-X ray inspection-ultrasonic inspection-spraying-connection of the finished products

The bearing types of SAW mill:

No.	Model	Specification	coil width(mm)	Thickness(mm)	Coil weight(ton)	Capacity(kw)	Area(M2)
1	LHJZ-400	Φ219~Φ426	400~750	5~10	10	180	18×180
2	LHJZ-500	Φ219~Φ529	400~800	5~11	15	200	18×180
3	LHJZ-600	Φ219~Φ630	450~1050	6~12.7	20	240	21×180
4	LHJZ-700	Φ219~Φ720	500~1250	5~14	20	260	21×180
5	LHJZ-800	Φ219~Φ820	500~1300	6~18	30	380	24×180
6	LHJZ-1000	Φ219~Φ1020	500~1300	6~20	30	390	24×180
7	LHJZ-1400	Φ325~Φ1420	500~1560	6~22	30	400	26×180
8	LHJZ-1600	Φ426~Φ1620	500~1560	6~25.4	40	510	30×180
9	LHJZ-1800	Φ508~Φ1820	1100~1600	8~25.4	40	510	30×180
10	LHJZ-2000	Φ508~Φ2020	1200~2000	8~25.4	40	530	30×180
11	LHJZ-2400	Φ508~Φ2400	1200~2000	8~25.4	40	530	30×180
12	LHJZ-3000	Φ508~Φ3000	1200~2000	8~25.4	40	530	30×180

spiral pipe unit/spiral welded pipe mill/ pipe production line/ pipe making machine