Multi Point Resistance Spot Welder Head for SS Sheet 6 6mm

Product Overview

The Multi Point Resistance Spot Welder Head for SS Sheet is a heavy-duty gantry-style resistance welding system engineered for high-productivity stainless steel fabrication. This multi-head spot welding machine integrates five independently controlled welding heads within a single rigid frame, enabling simultaneous, sequential, or individual welding operations to meet diverse production demands. Built with precision pneumatic actuators, programmable controls, and high-capacity water-cooled transformers, it delivers consistent weld quality across stainless steel sheet metal, automotive components, appliance panels, and expanded metal mesh.

Designed for 6+6 mm maximum welding thickness on stainless steel sheets, this multi-point resistance spot welder combines capacitive discharge technology with electro-pneumatic proportional pressure control to minimize heat-affected zones while maximizing throughput. The system features a monolithic tree-style construction with internal reinforcement ribs, ensuring minimal deflection during continuous operation. Ideal for fabricators seeking to reduce cycle times and improve weld repeatability, this spot welding head upgrades manual or single-point operations into a semi-automated, multi-electrode production solution suitable for high-volume manufacturing environments.

Key Technical Advantages

Monolithic Heavy-Duty Frame for Long-Term Accuracy

The single-body tree-style structure with internal reinforcement ribs resists impact and vibration, minimizing structural deflection under load. This ensures electrode alignment remains stable during continuous production, allowing fabricators to hold tight weld tolerances over extended runs and reduce rework caused by weld drift.

Multi-Head Independent Control for Flexible Production

All five upper electrodes can operate simultaneously for high-speed multi-point welding, sequentially for complex assemblies, or individually for custom patterns. This flexibility allows manufacturers to switch between production modes without retooling, delivering faster changeovers and higher throughput for mixed-batch stainless steel sheet jobs.

Capacitive Discharge Welding for Minimal Distortion

Fast capacitive charging and discharging delivers extremely short weld times, which narrows the heat-affected zone and reduces thermal distortion on thin stainless sheets. This feature improves weld appearance, requires less post-weld finishing, and supports higher energy efficiency compared to conventional AC spot welding.

Precision Electro-Pneumatic Stroke and Pressure Control

Each upper electrode has an auxiliary pneumatic cylinder for fine stroke adjustment, while an electronic proportional valve provides real-time digital control of welding force. Operators can set consistent pressure per weld schedule, ensuring uniform nugget formation across the entire workpiece and lowering the risk of weak or inconsistent spot welds.

Fully Insulated Secondary Circuit for Safe Tooling Integration

The secondary circuit uses fully insulated cylinder mounts and upper arms, allowing direct installation onto common lower fixtures without short-circuit risk. This simplifies machine setup, enhances operator safety, and shortens installation downtime when configuring jigs for new weld jobs.

Integrated Utility Monitoring to Prevent Unplanned Stops

Air pressure and water flow sensors trigger immediate alerts when utility supply fails, preventing dry welding or component damage. This built-in diagnostics feature reduces unplanned downtime and protects both the tooling and workpieces, supporting consistent production output over long duty cycles.

Applications

Working Principle

Technical Specifications

After-Sales and Support

• Warranty Coverage — 1-year warranty on the complete system covering manufacturing defects under normal operating conditions.
• Pre-Shipment Inspection — Video outgoing-inspection and machinery test report provided for every unit before dispatch.
• Technical Support After Warranty — Video technical support and online support available for troubleshooting and maintenance guidance.
• Spare Parts Availability — Original spare parts supplied to support long-term maintenance, minimizing downtime.
• Customization Service — Factory accepts custom configurations based on specific workpiece drawings and production requirements.

Frequently Asked Questions

What is the maximum welding thickness for this multi point spot welder?

The maximum welding capacity depends on the model you select. The DN(B)-250 model welds up to 6.0+6.0 mm stainless steel sheets, while the DN(B)-100 supports up to 3.0+3.0 mm. The 6+6 mm specification refers to the DN(B)-250 configuration designed for thicker stainless steel fabrication jobs.

Can all five welding heads run independently?

Yes, each of the five welding heads can be controlled individually, sequentially, or simultaneously through the programmable controller. This flexibility allows you to weld different patterns, handle complex assemblies, or run all heads at once for maximum throughput on long sheet metal runs.

How is the welding pressure adjusted on this machine?

The welding pressure is controlled by an electro-pneumatic proportional valve that enables real-time digital adjustment of welding force. Each upper electrode also has an auxiliary pneumatic cylinder for fine stroke calibration. This combination ensures accurate pressure per weld schedule, contributing to consistent weld quality.

What is the lead time for customization and delivery?

The factory can customize the machine according to your workpiece requirements. Standard models are typically shipped promptly, while customized configurations take additional time for engineering and fabrication. Please contact our team with your drawings to receive an accurate delivery schedule.

How does the cooling system protect the equipment during high-speed operation?

The main welding circuit uses a fully water-cooled transformer and rectifier assembly that maintains stable output and thermal management during continuous high-duty cycles. The integrated water flow monitoring switch triggers an alarm if coolant flow drops, preventing overheating and protecting the equipment from damage.

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