Production Welded Line Automatic a-P-I Grade ERW Steel Pipe Weld Tube Mill

Product Description

A-P-I Grade ERW Pipe Mill
The steel coil after slitting is unfolded and leveled. Then, they are sent into forming machine. Using rolls, the coil is bent into pipe state. The edge of the steel coil is melted by making use of the proximity effect and skin effect of high frequency current. Then, the coil is extruded and welded into the pipe by extruding roller. Then, the final pipe is manufactured out after the IF annealing and cut to length. API grade ERW pipe mill is mainly used for producing the high-grade pipe such as oil and gas delivering and casing pipe in the oil well. These high-grade pipes strictly require the pipe material and pipe quality. The A-P-I grade ERW pipe mill has IF annealing, air cooling roller, UT detector, high pressure hydrotester and other detect equipment.
The forming styles of ERW pipe can be divided into roll forming, flexible forming, full auto flexible forming. The mill developed by our company adopts roll forming when producing small diameter pipe (Φ≤114). Flexible forming or fully automatic flexible forming is adopted when producing large diameter pipe (Φ≤711).
In recent year, our company developed the precise control forming. The advantage of this kind forming is to guarantee the excellent forming quality in rough forming section through the precise control. Then it is no need to have the repair management in precise forming section. Therefore, the precise forming machine does not need to change the roll. All the forming section does not need to change the roll, which solves the problem of the change in precise forming section and non-change in rough forming section. Therefore, it saves the roll investment and decreases the time of roll changing. Besides, during the diameter changing, all are controlled by computer. The roll will automatically reach the position by inputting the pipe diameter, pipe thickness, material and other parameters. It largely improves the mill efficiency and pipe qualified rate. This forming method is suitable for large pipe mill (219mm to 711mm), which saves the investment and improves the efficiency.

Models:

No.	Model	OD (mm)	Speed (m/min)	Thickness (mm)	Capacity (kw)	Area (M^2)
1	HNZF-114	Φ50 - Φ114	10 - 90	2.0 - 9.0	700	18×120
2	HNZF-127	Φ50 - Φ127	10 - 90	2.0 - 9.0	700	18×120
3	HNZF-140	Φ60 - Φ140	10 - 90	2.0 - 10	750	18×120
4	HNZF-165	Φ76 - Φ165	10 - 80	2.0 - 10	800	18×150
5	HNZF-219	Φ89 - Φ219	10 - 60	3.0 - 14	1000	24×200
6	HNZF-273	Φ89 - Φ273	10 - 60	3.0 - 14	1200	24×200
7	HNZF-325	Φ140 - Φ325	10 - 40	4.0 - 16	2500	24×300
8	HNZF-355	Φ14 - Φ355	10 - 40	4.0 - 16	2500	24×300
9	HNZF-406	Φ165 - Φ406	8 - 30	4.0 - 16	3000	24×400
10	HNZF-426	Φ165 - Φ426	8 - 30	4.0 - 16	3000	24×400
11	HNZF-508	Φ219 - Φ508	8 - 30	4.0 - 20	5000	30×400
12	HNZF-610	Φ273 - Φ610	8 - 30	4.0 - 22	7000	30×400
13	HNZF-630	Φ273 - Φ630	8 - 30	4.0 - 22	7000	30×400
14	HNZF-660	Φ273 - Φ660	8 - 30	4.0 - 25	7000	30×400
15	HNZF-711	Φ325 - Φ711	8 - 25	5.0 - 25	10000	30×600

Production Process:            
Loading Coil - Uncoiling - Leveling - Cutting and Welding - Accumulating - Precise Leveling - Forming - HF Welding - Water Cooling - Online UT Detecting - IF Annealing - Air Cooling - Water Cooling - Sizing - Flying Cut - End Facing and Beveling - Hydro Testing - Offline UT Weld and Pipe Inspecting - Weighting, Measuring and Marking - Pipe Collecting




FAQ   
1. Which countries your products are exported to?
Our products are sold all over the world and with related certifications.
2.How about the warranty?
All our products have one year quality warranty, during the warranty time, the spare parts replacement is free. And we provide life long time technical support and other assistance.
3.How to install your machine?
Usually speaking, engineers will be sent to your factory to help to install and adjust the machines. We also have paper installation instructions and videos, teaching you till you command it.
4. Which export port you use?
Any China ports. It can be appointed as you like.
5. How about the payment terms and delivery time?
Payment terms for small machines: 100% T/T/ Western Union/Cash in advance.
Payment terms for big machines and big amount: 30% deposit and 70% before shipment. You can pay by T/T, L/C, Western Union or other ways.
The machine delivery time is within six months.
6. Are your goods with ISO9001 or CE certificate?
Yes, all our goods have ISO certificates. All machines are high quality goods.
7. What is your nature of your company: dealer or factory?
We are manufacturer with a big factory, warmly welcome to visit our factory.