Welding · Resistance Welder

Sunstone CD Welder

Ideal for welding very conductive parts such as copper, the Sunstone CD spot welders provides high peak current and fast rise time. It is mostly used in the battery pack manufacturing and microscopic assemblies industry.

The Sunstone AC resistance spot welders can be connected to any welding accessory machine, but are often paired with the Sunstone Weld Heads to weld battery packs and to achieve optimal results.

Product Info

Sunstone Dual Pulse Capacitive Discharge (CD) Spot Welders provide a precise and cost-effective solution for fine-spot resistance welding. Delivering superior spot welding performance, the Dual Pulse CD spot welder promises a clean and satisfactory result. Energy can be adjusted up to 1000 watt-seconds, depending on the model.

Affordability and versatility make Sunstone Engineering products the leading fine-spot, resistance and pulse arc welding solutions.

Resistance welding is an economical way to join two pieces of sheet metal. This method is used for a wide range of joining and heat-treating projects within the manufacturing field. Resistance welding machines, which are particularly known for their durability and unrivalled performance, ensure high speed welding. They are easily automated, economical and suitable for high-rate production. Repeatability and reliability are some of the benefits of resistance welding system. Apart from these advantages, facilities will also see an increase in productivity while gradually decreasing production and labour costs, thereby boosting profitability.


✓ Small heat affected weld zone ✓ Capable of extremely fine energy adjustment
✓ Simple and user-friendly interface ✓ Single of Dual Pulse operation



  • Aerospace
  • Automotive
  • Batteries
  • Electronics
  • Medical Devices
  • Military
  • General Industrial
  • Laboratory



Parameter CD100SPM CD200SPM CD200DP CD400DP CD600DP CD1000DP D-CD320
Watt-second Capacity (ws) 100 200 200 400 600 1000 320
Dimension 21.6 x 28 x 20.3 cm 21.6 x 28 x 20.3 cm 30.5 x 34.3 x 26.7 cm 30.5 x 34.3 x 26.7 cm 30.5 x 24.3 x 26.7 cm 47.6 x 35.6 x 28 cm 30.5 x 34.3 x 26.7 cm
Single and Dual Pulse No Yes
Peak Current (Amps) 7905 – 11,180 10,000 6300