Pneumatic Projection Spot Welding Machine 220V 380V Steel Metal Sheet Welder

Product Overview

ChengDu Xinweihan is a leading welding equipment manufacturer in China, specializing in delivering complete welding solutions for global manufacturers. This pneumatic projection spot welding machine is engineered with a rigid high-strength frame, precision gas-liquid pressure cylinder, and independent welding head controls, ensuring stable and repeatable weld quality for sheet metal fabrication. Built to handle large workpieces with up to 8 projection welds per clamping cycle, it dramatically boosts throughput while maintaining consistent pressure and current at every weld point.

With a rated power range from 40 to 200 KVA and support for 220V/380V input, this versatile welder suits medium to heavy steel, copper, and aluminum applications. The horizontal electrode movement enables easy access to transverse weld points, making it ideal for assembly lines where installation space is limited. Our 20,000 sq.m facility and 20+ engineer R&D team back every machine with professional guidance and responsive after-sales support, including optional overseas technical service teams in Southeast Asia and South America.

Key Technical Advantages

High-Rigidity Shock-Resistant Frame

The body is finely machined with multiple internal reinforcing ribs to deliver exceptional stiffness and minimal deformation under heavy loads, ensuring stable welding and safe manual operation during continuous production.

Independent Pressure and Current Control per Head

Each welding head allows separate adjustment of welding pressure and current, enabling precise tuning for varied workpiece thicknesses. The horizontal forward/backward movement of the upper electrode and fixed lower electrode simplify operation while expanding weld point accessibility.

Stabilized Pneumatic System with Dedicated Air Tank

A backup air storage tank minimizes welding pressure fluctuation, ensuring a stable and consistent welding force. The combination cylinder with low-damping seals and a pilot large-flow solenoid valve delivers rapid response and extremely sensitive follow-up performance for high-speed tapping.

Adjustable Stroke Speed and Reduced Noise

The descent and ascent speed of the pressure head can be freely adjusted, softening impact on workpieces and lowering operational noise. Independent welding stroke and workpiece movement stroke further improve control and ergonomics.

Eco-Friendly and Energy-Efficient Performance

Designed with eco-friendly operation in mind, the machine optimizes power usage while maintaining high weld quality. The fully automatic welding controller sequences all actions from start to finish, reducing manual intervention and improving energy efficiency.

Applications

Working Principle

Technical Specifications

After-Sales and Support

• Free Spare Parts — Replacement consumables are provided at no charge during the warranty period to minimize downtime and keep your production running smoothly.
• Field Installation and Commissioning — On-site setup, calibration, and operator training are available to ensure your team can use the machine safely and efficiently from day one.
• Video Technical Support — Remote troubleshooting and live video guidance are offered for quick issue resolution, reducing the need for costly service visits.
• Online Support and Spare Parts Supply — Continuous online assistance ensures you have access to expert advice and genuine parts whenever needed.
• Machinery Test Report and Video Inspection — A detailed test report and outgoing-inspection video are provided before shipment, giving you confidence in machine performance and quality.

Frequently Asked Questions

What materials can this projection welding machine handle?

This machine is suitable for spot and projection welding of steel, copper, and aluminum sheets. It handles A3 steel up to 6+6 mm thickness effectively, making it versatile for a wide range of metal fabrication tasks.

How many weld points can be completed in one clamping cycle?

Each welding head completes projection welding on 4 weld points, and with the full machine setup, a total of 8 protrusions are welded in a single clamping operation. This reduces handling time and significantly improves production efficiency.

Can the welding pressure and current be adjusted independently?

Yes, the welding pressure and welding current for each head are independently adjustable. This allows precise control for different workpiece thicknesses and material types, ensuring consistent weld quality across every point.

What after-sales support is available for overseas buyers?

We provide free spare parts, field installation, commissioning, and training, along with video technical support and online assistance. Our overseas technical service teams operate in Southeast Asia and South America for on-site maintenance. Contact us to check availability in your country.

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