The forming styles of straight seam welded pipe can be divided into roll forming, flexible forming, full auto flexible forming. The mill developed by our company adopts roll forming when having small diameter (Φ≤114). Flexible forming or full automatic flexible forming is adopted when having middle or large diameter(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 in this forming method does not need to change the roller. All the forming section does not need to change the roller, which solves the problem of the change in precise forming section and non-change in rough forming section. Therefore, it saves the roller investment and decreases the time of roller changing. Besides, during the diameter changing, all are controlled by industrial computer. The roller will automatically reach the position by inputting the pipe diameter, pipe wall thickness, material and other parameters. It largely improves the mill efficiency and pipe qualified rate. This forming method is suitable for medium and large mill from 219mm to 711mm, which saves the investment and improves the efficiency.
According to the pipe application, the ERW line can be divided to A P I standard pipe mill and national standard mill.
A P I standard straight seam HF welded pipe mill introduction is mainly used for producing the high grade pipe such as oil, gas delivering and casing pipe in the oil well. These high grade pipes strictly require the pipe material and pipe quality. This kind of straight seam HF welded pipe mill has IF annealing, air cooling roller rail, UT detector, high pressure hydrotester, diameter drifter and other detect equipments and art craft.
National standard mill is mainly used for manufacturing the low pressure fluid pipe and structure pipe.
Model:
| No. |
Model |
Specification(mm) |
Speed(m/min) |
Thickness(mm) |
Capacity(kw) |
Area(M2) |
| 1 |
HNBXG-219 |
Φ89~Φ219 |
0.1~1.8 |
2.0~10 |
~100 |
24×200 |
| 2 |
HNBXG-273 |
Φ89~Φ273 |
0.1~1.8 |
2.0~10 |
~120 |
24×200 |
| 3 |
HNBXG-325 |
Φ140~Φ325 |
0.1~1.5 |
2.0~12 |
~250 |
24×200 |
| 4 |
HNBXG-355 |
Φ140~Φ355 |
0.1~1.5 |
2.0~12 |
~250 |
24×200 |
| 5 |
HNBXG-406 |
Φ165~Φ406 |
0.1~1.5 |
2.0~12 |
~250 |
24×200 |
| 6 |
HNBXG-426 |
Φ165~Φ426 |
0.1~1.5 |
2.0~14 |
~300 |
24×300 |
| 7 |
HNBXG-508 |
Φ219~Φ508 |
0.1~1.5 |
3.0~14 |
~350 |
30×300 |
| 8 |
HNBXG-610 |
Φ273~Φ610 |
0.1~1.5 |
3.0~14 |
~350 |
30×300 |
| 9 |
HNBXG-630 |
Φ273~Φ630 |
0.1~1.5 |
3.0~14 |
~400 |
30×300 |
| 10 |
HNBXG-660 |
Φ273~Φ660 |
0.1~1.5 |
3.0~14 |
~400 |
30×300 |
| 11 |
HNBXG-711 |
Φ325~Φ711 |
0.1~1.5 |
3.0~14 |
~400 |
30×400 |
- Technical Feature
1). Forming Machine without Roller Changing Technology
The unit adopts the world's most advanced molding machine, on the basis of the rough forming machine does not need to replace the roll, and developed the fine forming machine that does not need to replace the roll, so that the entire forming machine does not need to replace the roll.In this way, roll changing time is reduced and production efficiency is improved, which makes the production of multi-specification and small-batch orders possible.
2). Rapid replace roller sizing machine
Our machine set adopts the technology of rapid roll replacement with shafting lateral pull-out. and the spare shaft system of the installed roll is fed into the frame. In this way, roll changing time is reduced and production efficiency is improved, which makes the production of multi-specification and small-batch orders possible.
3). PC control to change specifications
Previous technology, when changing specifications of the roll adjustment, require highly skilled adjustment workers to do so. Due to the uncontrollable human factors, the unit's reject rate is relatively high and the adjustment time is relatively long, which seriously affects the unit yield and production efficiency. Our unit, the establishment of a comprehensive database, changing specifications, only need to input parameters such as diameter, wall thickness, the computer is called roll to adjust the location data of database, the computer will drive roll automatically stop after arrived in correct position, directly into the belt will be able to production, reduce the adjustment time and errors, reduce the rejection rate when the leader. Such adjustment technology, combined with the machine that does not need to replace the roll and the sizing machine that rapidly changes the roll, the unit can change the specification within 2 -3 hours, in the world leading position.
Working Process:
Preparing Coil →Loading Coil→ Uncoiling→ Detaching head→ Pinching & Leveling Machine →Cutting& Butt Welding Platform→ Forming Machine→ Welding→ Leveling Inner Weld of Steel Pipe → Polishing Outer Weld of Steel Pipe → Sizing 1 → On-line Solid Solution → Sizing 2 →Cutting with a fixed length band saw → Feeding the pipe after saw
Our Products:
Features:
Full A P I Compliance
High-Frequency (HF) Welding Technology
Enhanced Weld Seam Treatment
In-Line NDT Inspection System
Precision Forming & Sizing
Application:
Oil & Gas Transmission: Onshore and offshore pipelines, gathering lines.
Energy Infrastructure: Piling for pipeline supports, structural pilings.
Oil Country Tubular Goods (OCTG): Casing and tubing for standard applications (subject to specific mill capability).
High-Pressure Fluid Conveyance: For chemical, petrochemical plants.
Packing & Shipping:
1.We used steel wire and wooden frame to fix the pipe mill.
2.In addition, used shockproof film to protect the main motors.
3.We used containers for shipping.
4.Generally speaking, we start at Tianjin sea port, but we also can start at other port according to customer's needs.
Factory area: 3,000 Square Meters
Our Factory:
There are more than 20 engineers in the design department, who can quickly complete the design work according to the needs.
Our company has several powerful processing plants with many large processing equipment and more than 60 skilled workers.
Advanced equipment, rich experience and rigorous management can ensure high-quality manufacturing of large-scale equipment.
Our customers:
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.
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