50 KVA x 33" Used Standard Spot Welder With Microprocessor Control, Mdl. AR3-30-50, Janda 105 Microprocessor Control, Unitrol Soft Touch System, (1) SET OF SHEAR BL...  ...More Info

50 KVA x 33" Used Standard Spot Welder With Microprocessor Control, Mdl. AR3-30-50, Janda 105 Microprocessor Control, Unitrol Soft Touch System, (1) SET OF SHEAR BLADES, #A6222 

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The Standard AR3-30-50 is a large resistance spot welding machine used in industrial and fabrication environments to join sheet metals and components by heat-generated pressure welding. These machines are common in fabrication shops, automotive assembly, and heavy metal manufacturing where consistent, repeatable welds are necessary

Here’s what defines this model:

• Power Capacity: 50 kVA output — relatively powerful for medium-to-heavy gauge materials.

• Throat Depth: ~30–33 inches (distance from electrode to machine frame), allowing welds further from edges. Electric Supply: Typically configured for industrial voltages (e.g., 208 V). 

• Control System: Often equipped with a Janda 105 microprocessor control and Unitrol soft-touch logic (on some units), giving precise cycle timing and weld control. 

• Operation: Usually foot-pedal actuation for hands-free welding. Surplus Record

• Dimensions: Around 67″ × 41″ × 73″ for industrial placement.