Weld Master India

WMI Lithium Ion Battery Spot Welding Machine pneumatic and Hand oprated 

Weld master India Spot Cum Projection welder 100 KVA

Weld Master India Capacitor Discharge Stud welder CD 10 Suitable to Weld M3 to M10,MS & SS Studs,Stud welding is a welding process in which a metal stud or similar fastener is joined to a metal workpiece (usually a base plate or surface) by heating both parts with an electric arc. It’s commonly used in construction, shipbuilding, automotive, and manufacturing industries to quickly and securely attach fasteners without the need for drilling holes.

Weld Master India Gun Spot welding machine

Weld Master India | Pneumatic Spot Cum Projection Welding Machine 100 KVA

1. MFDC Inverter Controller

   • Converts 50/60 Hz AC to 1,000 Hz AC, then to DC.

   • Allows precise control over weld time, current, and energy.

2. Transformer

   • Lightweight and compact due to high-frequency operation.

   • Converts medium-frequency AC to low-voltage, high-amperage DC.

3. Welding Electrodes

   • Copper alloy tips that apply pressure and conduct current.

4. Servo or Pneumatic Actuator

   • Applies consistent force to the workpieces during welding.

5. Cooling System

   • Usually water-cooled to prevent overheating.

1. Clamping: Electrodes clamp two metal sheets together.

2. Current Application: A short, high-amperage DC current is passed through the joint.

3. Resistance Heating: Heat is generated at the contact point due to electrical resistance.

4. Weld Nugget Formation: Metal melts and fuses at the interface.

5. Cooling: Current stops, and pressure is maintained for cooling and solidification.

• Automotive body assembly (BIW - Body in White)

• Battery tab welding (e.g., EVs)

• Sheet metal joining

• Appliance manufacturing

• Requires specialized maintenance & setup

• Initial cost higher than traditional AC machines

• Water cooling is essential due to high heat

Pneumatic Spot cum Projection Welder

Weld Master India Pedal operated Spot welding machine 5 KVA to 15 KVA,

Pedal spot welding is a type of resistance spot welding that is operated using a foot pedal. It’s commonly used in light fabrication work, especially in applications involving thin sheet metal. The operator controls the welding process with their foot, leaving their hands free to position the workpieces.

1. Setup:

   • Two copper electrodes (top and bottom) are aligned.

   • The metal pieces to be welded are placed between the electrodes.

2. Pedal Activation:

   • Pressing the foot pedal causes the electrodes to clamp the metal pieces together with force.

   • This also initiates an electrical current through the electrodes.

3. Welding Process:

   • High current (typically low voltage, high amperage) flows through the metal at the contact point.

   • The electrical resistance at this point causes the metal to heat up and melt locally, forming a weld nugget.

4. Cooling and Release:

   • The current is stopped.

   • The weld cools under pressure, solidifying the joint.

   • The pedal is released, and the electrodes open.

• Hands-free operation for easier handling of small parts.

• Consistent pressure application via the foot pedal.

• Compact and relatively inexpensive machines.

• Great for low-volume production, prototyping, and repair work.

• Not ideal for thick or high-strength materials.

• Limited to lap joints and small-scale welds.

• Operator fatigue can occur with continuous manual operation.

• Sheet metal work (e.g., HVAC ducts, metal enclosures).

• Automotive bodywork repairs.

• Electronics chassis and brackets.

• Jewelry and small metal assemblies.