Shandong Dorco Heavy Machinery Co., LTD.

Professional Manufacturer of Large Equipment

Vertical Ring Rolling Machine Horizontal Ring Rolling Machine Spiral Weld-pipe Mill

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Vertical Ring Rolling Machine

The D51 series vertical ring rolling machineshave advantages such as small size, compactstructure, material saving, and energy saving, andare widely used for hot rolling of various ringblanks in the bearing forging, automotive gear, andflange manufacturing industries.

Horizontal Ring Rolling Machine

D53K CNC series horizontal ring rollingmachines have advanced structure, digital program control, high degree of automation, highpro duction efficiency, material saving, energy saving, and other advantages. The D53K CNC ringrolling machine has radial and axial bidirectional composite rolling functions.

Spiral Weld-pipe Mill

Spiral welded pipe line is based on GermanyWe design and manufacture forming processing:this pipe line after investigating many foreign pipelines and combined with domestic situation

Strength

12m Gantry Milling
6m Gantry Boring and Milling Machine
4 m Digital Display Vertical Car
CNC Machining
Coil
8 m CNC Floor Boring
CNC Machining Center
1600 CNC car

Service Advantages

Auxiliary Plant Planning

Ensure More ReasonableLine Layout
Auxiliary Equipment List

Easy To Control AndAdjust Equipment
Installation Training

Ensure Full PotentialofEquipment
Resource Acquisition

Empowering Rapid Market Opening
24-hour Online

Rapid Response Perfect Solution

01
Support Customization
02
Provide Installation Diagram
03
Logistics Transportation
04
Technical Support Team
05
Multi Channel Feedback
06
Door-to-door Service

News

Welded Steel Pipe Abbreviations and Their Applications

2024/03/22

The spiral welded pipe production line and straight seam welded pipe production line are standard and standardized units developed and improved by Doleco Heavy Industries based on absorbing the essence of foreign forming technology and combining with domestic practical conditions. They are the most competitive and technologically distinctive mature units of Doleco Heavy Industries.

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ERW Pipe vs. LSAW Pipe

2024/03/18

ERW (Electric Resistance Welded) and LSAW (Longitudinally Submerged Arc Welded) are both types of straight seam welded pipes. Their main difference lies in the welding process.

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Hydrostatic Test of Spiral Steel Pipe (SSAW)

2024/03/11

The hydraulic test of the spiral steel pipe during the construction is a comprehensive inspection of the quality of the pipe, the joint, and the construction I. It is also an indispensable key test item before the project acceptance.

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