200 KVA Pneumatic Projection Welder Heavy Duty Sheet Metal Spot Welding Machine

Video Demonstration

Product Overview

The 200 KVA pneumatic projection welder is a heavy duty resistance welding system engineered for high volume sheet metal fabrication. This machine welds up to 8 projections in a single clamping cycle, significantly reducing cycle time while delivering consistent joint integrity across steel, copper, and aluminum workpieces. Independent adjustment of welding pressure and current on each head ensures precise control for critical applications.

Manufactured by ChengDu Xinweihan, a leading Chinese resistance welding system provider with a 20,000 sq.m facility and an R&D team of over 20 engineers, this unit is built for demanding industrial environments. The rigid frame, precision pneumatic hydraulic pressure control, and high speed follow up system ensure stable performance during prolonged high duty cycles. Backed by overseas technical support teams in Southeast Asia and South America, it is a turnkey solution for global manufacturers seeking reliable, high output projection welding equipment.

Key Technical Advantages

Reinforced Rigid Frame Construction

The machine body is shock resistant and seismically rated with high rigidity, featuring multiple internal reinforcing ribs that minimize deformation under load. This ensures stable welding conditions, extends component lifespan, and guarantees operator safety during sustained high duty cycles.

Precision Pneumatic Hydraulic Pressure Control

The upper electrode is actuated by a gas liquid pressure cylinder, enabling highly accurate pressure adjustment. A backup dedicated air storage tank minimizes welding pressure fluctuations, ensuring consistent weld force from the first to the last projection in every batch, which directly improves weld quality uniformity.

Independent Dual Axis Electrode Movement

The upper electrode moves horizontally forward and backward, fully independent from the workpiece operation stroke, while the lower electrode remains fixed. This design simplifies part loading, reduces setup time, and accommodates complex workpiece geometries without interference, boosting overall production efficiency.

High Speed Follow Up Response System

An aluminum alloy combination cylinder with low damping seals, light friction rings, and a pilot large flow electromagnetic directional valve delivers exceptionally fast ramping speed and ultra sensitive follow up performance. This results in rapid tapping speed and improved weld consistency across all points, minimizing defects and rework.

Adjustable Stroke for Optimized Cycle Efficiency

Descent and ascent speeds of the pressure head are freely adjustable, reducing impact on workpieces and minimizing operational noise. The welding idle stroke can be shortened via auxiliary cylinder adjustment nuts, enabling faster cycles and eliminating potential welding interference, which translates to higher throughput and lower operating costs.

Applications

Working Principle

Technical Specifications

After-Sales and Support

• 1 Year Warranty — Full coverage on core components including PLC, motor, gearbox, pump, and pressure vessel, with free spare parts provided during the warranty period.
• On Site Commissioning — Field installation, commissioning, and operator training are included, ensuring your team is fully proficient from day one.
• Overseas Technical Teams — Dedicated service engineers in Southeast Asia and South America provide rapid on site maintenance; remote video assistance is available worldwide.
• Machinery Test Report — Every unit undergoes pre shipment inspection and test report; video outgoing inspection can be arranged upon request.
• Extended Support — After warranty, continue to access online diagnostics, video troubleshooting, and genuine spare parts supply to maximize machine uptime.

Frequently Asked Questions

What materials can this projection welder handle?

The machine is designed to weld steel, copper, and aluminum. For A3 steel, it can weld up to 6+6 mm thickness, making it highly versatile for moderate to heavy sheet metal work.

How many projections can be welded in one cycle?

The standard configuration completes 8 projections per single clamping operation—each welding head covers 4 points, and the system automatically sequences through all points without manual re positioning.

Can the welding pressure and current be adjusted independently?

Yes. Each welding head has independent adjustment for both welding pressure and welding current, allowing precise control over weld quality for different thicknesses and material combinations.

Do you provide installation and training support overseas?

Absolutely. We have technical service teams in Southeast Asian and South American countries providing on site installation, commissioning, and training. For other regions, video guided commissioning and remote diagnostics are available.

What is the delivery time and packaging?

Machinery is securely packed in export grade wooden crates designed for ocean freight. Delivery time varies by configuration; please contact us with your requirements for a precise shipping schedule.

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