Welding · Resistance Welder

Sunstone AC Welder

Ideal for general purposes welding, the Sunstone AC resistance spot welders are precision units with accurate controls that can be adjusted down to weld times as low as 1/100 second.  Depending on the metal and orientation, a typical welding applications range from sheets as thin as 0.05mm up to 1.2mm.

Product Info

Sunstone AC resistance spot welders incorporate numerous features, which include dual pulse, multi-pulse, roll-spot, seam welding and temper functions. Additionally, they can store up to 100 schedules and up to 10 jobs. A job helps the user multitask by chaining schedules together and executing complex welding projects.

Computer controlled and comprising of a thermal protection monitoring system, this AC resistance spot welder is a stable and precise choice for meeting resistance spot welding needs. These resistance spot welders can weld materials up to 0.4mm in thickness or even down into the micro-scale levels.

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.


✓ Internal AC Transformer ✓ Synchronous IC Control
✓ Simple and user-friendly interface ✓ Adjustable Heat Control


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


Parameter AC 2.2kVA AC 5.0kVA
Primary Volts 110/220/240 240
Max Weld. Cap. 2 x 0.5 2 x 0.75
Short Circuit Current 2100 A 2500 A
Open Circuit Volts 4.5 V 5.8 V
Weight 20 kg 48 kg
Dimensions 35 x 26 x 33 cm 54 x 32 x 34 cm