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Micro Resistance - AC Welder

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AC Resistance Seam Welders are used to complete AC Resistance welds. These would include both spot welds and seam welds. Ideal for creating a continuous seam weld, foil welding, Pouch cell welding, and mesh or screen welding. The primary applications include the creation of hermetic seal with a pouch or package. Additionally, AC Resistance seam welders create and build filter assemblies, filter bodies, and attaching mesh screen to a strainer basket. Additional applications include filter baskets, battery cells, and any metal filter or screen.

AC Welders Datasheet

AC Welders User Manual

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Available models:

AC 15.0 kVA - 15kVA, 480v AC Welding Power Supply (AC15.0 kVA)

AC 5.0 kVA - 5.0kVA, 220-240v AC Welding Power Supply (AC5.0 kVA)

AC 2.2 kVA - 2.2kVA, 220-240v AC Welding Power Supply (AC2.2 kVA)

AC Resistance Spot Welders are precision units with accurate controls that can be adjusted down for fine resistance welding. Typical welding applications range from sheets as thin as 0.05mm up to 1.2mm, depending on metal and orientation.

There is often a need for a light Spot Welding Gun that can be held in the hand and used from one side.  Typical examples might include the welding of mild steel saddles to hold copper cooling tubes onto stainless, galvanized or zintec panels in refrigeration work, or the welding of stainless steel name or number plates onto a variety of components.  Other applications include model work, the welding of thermocouples and strain gauges, and the manufacture and repair of stainless steel heat insulation blankets.  The machines are also widely used in the nuclear field for the welding of stainless steel insulation in reactors.  The process is primarily designed for light gauge work up to about .75mm, which can be welded to itself or to heavier gauges, and there are a great many applications in this range where it will be invaluable.  With heavier duty Guns, cables and larger transformers, it is possible to weld up to 2 x 1.25mm, or 1.25mm to heavier materials.

Features of the AC Resistance Spot Welders

  • Internal AC Transformer
  • Simple, User-Friendly Interface
  • Synchronous IC Control
  • Adjustable Heat Control
  • 110 VAC or 240 VAC


Commonly paired with the PG2 hand-piece and EL-Roll electrode to create roller seam & Seam Welds. Additionally, AC Resistance Welders pair with a water cooling system in applications that require more extended seams or higher duty cycles. The water systems would include the PG3W with water cooled cables & a Recirculated Water Chiller. This method will allow heat that is built up during the welding process to dissipate very quickly. Water cooling system allows for extended use without damage to the welding system or diminished weld results. Please call and consult one of our welding professionals to help you determine what requirements for your application and budget. We also offer Free samples evaluations that can help you see what the welding process does for you. This Free service can help you better determine if AC Resistance welding is right for you and your application.


    • Weight
      90 lbs
    • SKU
      PW
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Shipping Terms

  1. Unless indicated otherwise in the Acknowledgment, Delivery shall be made EXW (Incoterms 2010), Shipping Point, including without limitation, freight, and insurance costs. If no delivery terms are specified on the Acknowledgement, the method of shipping will be at the sole discretion of Seller. Unless directed in writing otherwise by Buyer, full invoice value will be declared for all shipments.

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Return Goods Policy. 

Seller’s products may be returned to Seller for credit within thirty (30) days of the shipment subject to the following conditions.

  1. In order to return products for credit, the Buyer must obtain an RMA number from Seller. Upon receipt, it must be executed by an authorized person and then returned with the Goods. Goods returned to Seller without an RMA will be returned at Buyer’s expense.
  2. Goods are to be returned to Seller at 1693 American Way #5 Payson, UT with Freight Prepaid. Seller will not accept collect shipments.
  3. Restocking fees will be assessed in accordance with the following schedules: (i) Goods returned within the first thirty (30) days from the shipment date will be restocked less six percent (6%) of the amount billed on the original invoice. (ii) No returns are allowed after thirty (30) days from the original shipping date.
  4. The restocking fees set forth above are the minimum fees. If a returned Good requires rework to restore it to a saleable condition, further charges will be assessed. Seller’s quality assurance department will document the condition of the Goods when received by Seller and report their findings to Buyer. The following Goods cannot be returned, are not eligible for any credit, and cannot be restocked: (i) custom or modified products and (ii) any consumable product(s) that have been used.

*DADO Laser Welder – No cash refunds available for the dado laser welder. However, The Dado Laser Welder may be returned within 30 days for credit towards another Sunstone product.

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