Straight Seam Welded Pipe Unit for Oil and Gas Pipelines with Φ355-Φ720 Range and 300X300-600X600 Square Pipes
Price:
200000 - 1190000 USD per set
MOQ:
1 set
Delivery Time:
45 - 75 working days
Brand:
Duolek
Product Description
Oil And Gas Pipelines Straight Seam Welded Pipe Unit
Molding Stability with Excellent Weld Quality
The Duolek straight seam welded pipe unit is a technologically advanced industrial pipe manufacturing system, delivering stable and reliable performance through years of process optimization. Our equipment serves two primary production methods:
1. High Frequency Straight Seam Welded Pipe Unit
- Preferred choice for efficient, high-quality steel pipe production
- Internationally advanced forming system ensures stable forming
- Produces pipes with excellent surface quality
- Easy specification changes for flexible production
- Uses low-carbon steel strip (max width: 1500mm) as raw material
- Multi-roller continuous cold forming technology
- High-frequency current self-melting fastening for continuous production
2. Submerged Arc Straight Seam Welded Pipe Unit
- Specialized equipment for high-performance welded pipes
- JCOE cold stamping and other advanced processes
- Uses narrow coils (1250mm), medium plates, and thick plates
- Packing fastening methods ensure superior product quality
- Competitive cost and consumption indicators
Application Scope
This production line specializes in manufacturing straight seam welded pipes for industries including:
- Metallurgy
- Petroleum
- Construction
- Transportation
- Machinery
- Vehicle manufacturing
Technical Specifications
| Model | Round Pipe (mm) | Square Pipe (mm) | Thickness (mm) | Speed (m/min) |
|---|---|---|---|---|
| DRC-12 | Φ4-Φ12 | / | 0.2-0.5 | 120 |
| DRC-16 | Φ6-Φ16 | / | 0.2-0.8 | 120 |
| DRC-20 | Φ8-Φ20 | 6x6-15x15 | 0.3-1.0 | 120 |
| DRC-25 | Φ10-Φ25 | 7x7-19x19 | 0.3-1.5 | 120 |
| DRC-32 | Φ12-Φ32 | 9x9-25x25 | 0.5-2.0 | 120 |
| DRC-50 | Φ20-Φ50 | 15x15-39x39 | 0.8-3.0 | 120 |
| DRC-76 | Φ32-Φ76 | 25x25-59x59 | 1.2-4.0 | 120 |
| DRC-89 | Φ42-Φ89 | 35x35-70x70 | 1.5-4.5 | 110 |
| DRC-114 | Φ48-Φ114 | 40x40-90x90 | 1.5-4.5 | 70 |
| DRC-140 | Φ60-Φ140 | 50x50-110x110 | 2.0-5.0 | 60 |
| DRC-165 | Φ76-Φ165 | 60x60-130x130 | 2.0-6.0 | 55 |
| DRC-219 | Φ89-Φ219 | 70x70-170x170 | 2.0-8.0 | 50 |
| DRC-273 | Φ114-Φ273 | 90x90-210x210 | 3.0-10.0 | 45 |
| DRC-325 | Φ140-Φ325 | 110x110-250x250 | 4.0-12.7 | 40 |
| DRC-377 | Φ165-Φ377 | 130x130-280x280 | 4.0-14.0 | 35 |
| DRC-406 | Φ219-Φ406 | 170x170-330x330 | 6.0-16.0 | 30 |
| DRC-508 | Φ273-Φ508 | 210x210-400x400 | 6.0-18.0 | 25 |
| DRC-660 | Φ325-Φ660 | 250x250-500x500 | 6.0-20.0 | 20 |
| DRC-720 | Φ355-Φ720 | 300x300-600x600 | 6.0-22.0 | 20 |
Size Range by Application
| Usage | External Diameter (mm) | Weight (mm) | Length (m) |
|---|---|---|---|
| Oil and gas pipelines | 406 - 1524 (16" - 60") | 6 - 40 (1/4" - 1.57") | 8 - 12.1 |
| Construction (pipe pile) | 350 - 1600 (14" - 63") | 6 - 60 (1/4" - 2.36") | 6 - 12 |
| Rolling tube | 1200 - 3800 (47.24" - 150") | 12 - 120 (1/2" - 4.7") | ≤3.2 |
Note: Custom specifications available according to customer requirements
Application Scope
Customer Factory Inspection
Client Testimonials
Frequently Asked Questions
Q: What information do we need customers to provide?
A: Duolek has an R&D Center focused on product development. We can design and modify products according to customer requirements, maintaining an open approach to customer service.
Q: What's your quality control system?
A: We operate an ISO9001 Quality Management System. Our quality control includes materials inspection, machining process control, finished product testing, and pre-shipment inspection. Each step has dedicated inspectors with recorded test results.
Q: What payment terms do you accept?
A: We prefer bank transfer (T/T): 30% deposit with order confirmation and 70% before shipment. Letters of Credit (L/C) are accepted for orders over $200,000 USD.
Q: What is your warranty policy?
A: All products carry a one-year warranty from delivery date against defects in materials and workmanship. Normal wear and tear are not covered.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Shandong Dorco Heavy Machinery Co., Ltd.
Location
North of Zhuzhu Road, Puji Town, Jiaozhou City, Qingdao, China
Contact Person
Sophie