- Model No.: DZ20
- Automatic Production Line: Assembly
- Automation: Fully Automated
- Production Rhythm: Flow Production Line
- Web Height: 200-2000 mm
- Flange Width: 200-800 mm
- Workpiece Length: 4000-15000 mm
- Color: Customizable per Customer Requirements
- Packaging: Container
- Origin: China
- Transmission Type: Flexible
- Certification: ISO, CE
- Flexible Production: Intelligent Manufacturing
- Production Scope: Full Product Line
- Web Thickness: 6-32 mm
- Flange Thickness: 6-40 mm
- Assembly Speed: 0.5-6 m/min
- Trademark: Datang
- Specification: Standard
- HS Code: 84688000
This advanced H-beam assembly machine is designed for high-efficiency and precise welding operations. It uses a PLC programmable controller to manage all stages of the process, including clamping, alignment, and spot welding. The system ensures fast operation and excellent performance, making it ideal for large-scale production environments.
The machine features a mechanical and hydraulic tracking system for the welding gun, which allows for easy operation and consistent quality. It is capable of assembling and automatically spot welding variable-section H-beams without the need for voltage protection devices. This makes it both cost-effective and reliable for industrial applications.
The H-beam production line includes key processes such as cutting, assembling, welding, and straightening, offering a complete solution for steel structure manufacturing.
Specification | DZ15 | DZ18 | DZ20 | DZ25 |
Applicable Web Height (mm) | 200-1500 | 200-1800 | 200-2000 | 200-2500 |
Applicable Web Thickness (mm) | 6-32 | |||
Applicable Web Length (mm) | 4000-15000 | |||
Applicable Flange Width (mm) | 200-800 | |||
Applicable Flange Thickness (mm) | 6-40 | |||
Applicable Flange Length (mm) | 4000-15000 | |||
Assembly Speed (m/min) | 0.5-6 | |||
Power (kW) | 14 (excluding two motors) |


Company Information
Wuxi Datang Welding & Cutting Mechanical Equipment Co., Ltd. is a comprehensive manufacturer established in 2006 in China. With over 15 years of experience in the industry, we specialize in producing welding equipment, including column and boom systems, positioners, and H-beam production lines. Our products are widely used in industries such as oil and gas, construction, heavy engineering, and steel structures.
We have built a strong reputation through continuous research and development, and our products are designed to meet a wide range of welding needs. We maintain strict quality control in accordance with ISO 9001 standards and hold CE certification. Our commitment to quality, competitive pricing, and customer satisfaction has helped us establish long-term relationships with clients around the world.
If you're interested in our machines or would like more information, feel free to visit our website or contact us directly. We look forward to building a lasting business relationship with you soon.

FAQ
**Customer:** Can your machine or other products be customized?
**We:** Yes, we are a professional manufacturer with over 15 years of experience in welding equipment. Our team of skilled designers can customize most conventional products according to your specific requirements.
**Customer:** What about transportation?
**We:** We typically use sea freight due to its cost-effectiveness and convenience for large machines. However, we can also arrange train transport if needed, depending on the situation.
**Customer:** What about after-sales service?
**We:** We offer a 12-month warranty from the date of dispatch, along with free replacement parts for common wear items. We also provide long-term technical support and on-site installation and training services to ensure smooth operation of the equipment.
**Customer:** When we receive the machine, will there be any extra accessories included?
**We:** Yes, we include some commonly worn spare parts at no extra cost to handle minor issues that may occur during initial use.
Precautions for daily maintenance of hydraulic cylinders
1. Regularly inspect the sealing components of the hydraulic cylinder, such as O-rings and gaskets, to ensure that they are intact and undamaged. If there is wear or aging, they should be replaced in a timely manner.
2. Regularly check the liquid level of the hydraulic cylinder and keep it within the specified range. If the liquid level is too low, add hydraulic oil in a timely manner.
3. Regularly inspect the connection parts of the hydraulic cylinder, such as oil pipes and joints, to ensure their tightness and reliability. If there is any looseness, it should be tightened in a timely manner.
4. Regularly clean the outer surface of the hydraulic cylinder to prevent dust, sand, and other debris from entering the interior of the cylinder and affecting its normal operation.
5. Regularly inspect the surface of the piston rod of the hydraulic cylinder, and promptly repair or replace it if there are scratches or wear.
6. Regularly inspect the hydraulic system of the hydraulic cylinder, and promptly handle any problems such as oil leakage or unstable pressure.
7. When the hydraulic cylinder is not in use for a long time, its hydraulic oil should be drained to avoid oil aging, deterioration, and affecting the normal operation of the hydraulic system.
8. When repairing or replacing hydraulic cylinders, attention should be paid to safety to avoid sudden movement or pressure release of the hydraulic cylinder, which may cause personal injury or equipment damage.
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