Product Specification

50 KVA Semi Automatic Pneumatic Resistance Spot Projection Welding Machine

Heavy Duty Semi Automatic Resistance Spot and Projection Welding Machine

This 50 KVA semi-automatic pneumatic resistance welding machine is engineered for high-volume spot and projection welding of aluminum, steel, and metal sheet components. With a rated capacity range of 40-250 KVA and a maximum combined welding thickness of 6+6 mm, it produces strong and consistent weld joints for oil tank production, fuel tank fabrication, and general metalworking.

Built on a heavy-duty standing frame, this pneumatic resistance welder combines efficient electrode pressure with semi-automatic operation to improve production speed and weld repeatability. The 50% rated duty cycle supports continuous manufacturing schedules while reducing operator fatigue. Made in China, this resistance spot and projection welding machine delivers dependable performance and cost efficiency for industrial metal fabrication shops.

Key Technical Advantages

High Capacity Welding Range

The machine supports a rated capacity range of 40-250 KVA, giving you the flexibility to weld different aluminum and steel workpieces without adding multiple welding stations. This reduces equipment investment and allows you to standardize production on one reliable resistance welding platform.

Thick Material Welding up to 6+6 mm

With a maximum combined welding thickness of 6+6 mm, the machine can handle heavy-gauge metal sheets used in oil tanks, fuel tanks, and structural fabrication. The result is deeper weld penetration and strong joints that meet demanding industrial applications.

Pneumatic Electrode Pressure for Consistent Quality

The pneumatic system applies controlled electrode force automatically during each welding cycle. This creates uniform contact pressure, reduces operator influence, and delivers repeatable weld nuggets across long production runs. Higher consistency means fewer rejects and lower per-part welding costs.

Semi Automatic Standing Design for Productivity

The standing semi-automatic configuration lets operators position workpieces quickly while the machine handles the clamping and welding sequence. The floor-type structure reduces bending and handling fatigue, boosting output in tank welding, sheet metal assembly, and aluminum component production.

Continuous Duty Cycle for Demanding Shifts

A 50% rated duty cycle allows extended welding sequences with shorter cooling intervals. This makes the machine suitable for continuous production environments, minimizing downtime and increasing finished part output every shift.

Applications

Working Principle

Technical Specifications

After-Sales and Support

• Warranty — 1-year warranty against manufacturing defects on the welding machine.
• Support — Online guidance, video support, and spare parts supply for installation and operation.
• Customization — Welding capacity can be customized within the 40-250 KVA range according to your production needs.

Frequently Asked Questions

What is the maximum welding thickness of this resistance welding machine?

This semi-automatic pneumatic resistance welding machine can weld aluminum and steel sheets up to 6+6 mm combined thickness under the standard configuration.

What capacity options are available for this pneumatic spot welder?

The standard configuration is 50 KVA, and the machine can also be customized within the 40-250 KVA range to match your workpiece size and production requirements.

Does this machine support projection welding?

Yes, this unit supports both spot welding and projection welding, making it suitable for oil tank welding, sheet metal assembly, and aluminum component joining.

What is the duty cycle and warranty for this welding machine?

The rated duty cycle is 50%, allowing continuous semi-automatic production. The welding machine comes with a 1-year warranty.

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