Pneumatic Multi Point Spot Welding Machine for Stainless Steel Aluminium Sheet Metal

Video Demonstration

Product Overview

This five-head projection resistance spot welder is engineered for high-volume sheet metal fabrication, delivering simultaneous multi-point welds on stainless steel, aluminium, and other alloy materials. The gantry-style frame combines a pneumatic actuation system, water-cooled welding transformer, and independent head controls, allowing production lines to balance speed with repeatable joint quality across automotive, home appliance, and metal mesh applications.

Unlike single-point units, this machine lets operators run all five heads in sequence or independently, cutting cycle time on large panels while keeping each weld parameter adjustable. With rigid structural design and precision-guided electrodes, it maintains consistent electrode force and alignment, helping fabrication shops reduce rework and meet tighter production schedules.

Key Technical Advantages

Independent Multi-Head Control

Each of the five welding heads can operate simultaneously, progressively, or separately, granting operators the flexibility to adapt weld patterns to different workpiece geometries without slowing down the production cycle.

Impact-Resistant Gantry Frame

The single-column body is reinforced with multiple internal ribs and precision-machined mounting surfaces, keeping structural deformation minimal under repeated electrode force and supporting stable weld quality over long shifts.

Fast-Response Pneumatic Pressurization

Aluminium-alloy cylinder barrels with low-friction sealing rings and a high-flow pilot solenoid valve deliver rapid, smooth electrode travel, enabling high dot-per-minute rates without compromising follow-up pressure accuracy.

Proportional Valve for Weld Pressure Tuning

An electrical proportional valve allows precise adjustment of welding force, so operators can fine-tune settings for thin aluminium sheets versus thicker stainless steel panels, improving nugget consistency across mixed material runs.

Water-Cooled Energy-Efficient Power Circuit

The fully water-cooled resistance welding transformer and rectifier maintain strong output while reducing heat buildup, extending duty cycle and lowering energy consumption during continuous multi-shift operation.

Safety Monitoring for Air and Water Supply

Built-in pneumatic and water pressure switches with alarms prevent operation under low coolant or insufficient air pressure, safeguarding both the equipment and the quality of the weld in progress.

Applications

Working Principle

Technical Specifications

After-Sales and Support

• Warranty Coverage — 12-month warranty on the main machine and electrical components, with prompt spare parts dispatch for production continuity.
• Engineering Consultation — Our team reviews your workpiece drawings, recommends electrode configurations, and verifies capacity before you order.
• Operator Guidance — Documentation and remote support help your staff configure head sequences, pressure settings, and maintenance routines quickly.
• Factory Customization — We adjust stroke, electrode arrangement, and control options to better align the welder with your specific production targets.

Frequently Asked Questions

Can this machine weld both aluminium and stainless steel parts?

Yes, it handles both materials when the correct projection geometry, electrode pressure, and current settings are applied. The proportional valve and adjustable head sequence give operators the range needed to switch from softer aluminium sheets to harder stainless steel panels.

How many welding heads are integrated?

The unit is supplied with five heads that can operate together, in a staggered sequence, or as independent stations. This flexibility supports both high-speed repeat patterns and custom joint layouts on larger panels.

What power supply connection does the machine need?

Standard configuration runs on a three-phase 380V AC input. Please connect the unit to a dedicated line with adequate capacity since these models draw significant current during continuous welding cycles.

What kind of cooling is needed for continuous operation?

Water cooling is required at roughly 20 L/min to protect the transformer and electrode holders. The built-in water pressure alarm alerts the operator if flow drops below a safe threshold.

Can the electrode stroke be adjusted for different workpieces?

Yes, the auxiliary cylinder design provides continuous stroke adjustment up to 80 mm, so operators can match the head travel to varying part heights without having to disassemble the pressurization assembly.

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