Customizable Spiral Weld Pipe Mill 190KW Spiral Pipe Welding Machine

Customizable Spiral Weld Pipe Mill Multi-specification Stable Performance

The spiral welded pipe unit is a standard type unit developed and improved by Duolek Heavy Industry on the basis of absorbing the essence of foreign forming process technology and combining with the actual situation in China. It is the most competitive and mature unit with technical characteristics.

▶ Spiral welded pipe unit production process:

• The raw materials are strip coil, welding wire, flux. They must pass strict physical and chemical inspection before they are put into operation.
• Single or double wire submerged arc welding is used for butt butt of strip steel, and active submerged arc welding is used for repair welding after rolling into steel pipe
• Before forming, the strip is levelled, trimmed, planed, cleaned, transported and bent.
• The electric contact pressure gauge is used to control the pressure of the cylinder on both sides of the conveyor to ensure the smooth transport of the strip steel.
• The weld gap control device is used to ensure that the weld gap can meet the welding requirements. The pipe diameter, wrong side amount and weld gap are strictly controlled.
• Each batch of steel pipe shall undergo a strict inspection system to check the mechanical properties of the weld, chemical composition, fusion status, surface quality of the steel pipe and non-destructive testing to ensure that the pipe production process is qualified before it can be formally put into production.

▶ Automatic steel pipe hydraulic testing machine
Hydraulic testing machine is mainly used for welding pipe pressure test, with computer record, storage, printing, test results function. The pipe diameter range is Φ20-Φ3500mm, and the test pressure is 10-110MPa.

▶ Automatic flat head chamfering machine
Flat head chamfering machine is mainly used for flat head and groove processing on the end of welded pipe. Equipped with copying chamfering knife, the processing groove is uniform and beautiful. The flat-head chamfering machine provided by our company for steel pipe manufacturers meets API-5L, API-5CT, BS1387-85, ASTM, GB9711 and other standards.

▶ Ultrasonic flaw detector:
Defects active alarm and spray mark, workers adjust parameters according to this;
The parts with continuous acoustic detection marks on the weld are re-examined by manual ultrasonic and X-ray;
Defects are repaired and will be nondestructive inspected again until the defects are confirmed to be cleared;

▶ X-ray steel pipe inspection:
The detection system is seamless with the whole production line, and ADAPTS to the control and management process requirements of steel pipe manufacturers. The whole system has a high degree of automation, operation and testing, and has a very high share in the domestic steel pipe production line.

▶ Spiral Weld Pipe Mill Application Scope:

▶ Why choose us?

• Export Experience (Global Trade)

Since its establishment in 2002, Condor Heavy Industries has successfully operated its equipment in more than 20 countries and has dealers involved.According to Chinese export customs data, Duolek's related equipment ranks among the top ten in the industry, which means reliable quality and price.

• Customize on demand

With 21 years of manufacturing and export experience, Duolek supports the design and customization of equipment on demand, provides equipment configuration details and parameter guidance, and guarantees subsequent production quality and equipment adjustment. Here, you can get professional advice for your needs.

▶ Customer factory inspection communication:

▶ Our Clients Say

▶ Duolek Factory Common inquiry

Q:What information we need customers to provide?

A:Duolek has R&D Center to focus on the study for new product. We can design and make the change as customer’s requirements. We keep an opened mind to service our customers.

Q:What’s your quality control system?

A:We operate ISO9001 Quality Management System. We control our products quality by our workshop processes: Materials incoming inspection, Machining process control, finished testing and Inspection before packing. Each step has inspector and the testing results will be recorded for checking.

Q:What kind of payment terms do you accept?

A:We prefer T/T through bank. 30% when order is confirmed and 70% before shipment. L/C is also acceptable for amount over 200,000USD.

Q:What is your warranty policy?

A:All our products are warranted for one full year from date of delivery against defects in materials and workmanship.This warranty does not cover parts that are worn out through the course of normal operation