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This item has been discontinued and is unavailable for purchase. Check the Alternate Products selection below for options. For more information call 1-800-GRAINGER (472-4643).

Drawn Arc Stud Welder, 230/460/575V, 850A

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Unavailable for purchase, product discontinued


  • Item # 12A788
  • Mfr. Model # SY4500101
  • UNSPSC # 23171508
  • Catalog Page # N/A
  • Shipping Weight 180.0 lbs.
Country of Origin Not Available Country of Origin is subject to change.
Note: Product availability is real-time updated and adjusted continuously. The product will be reserved for you when you complete your order. More

Product Details

This midrange system features stepless time and current control, and short-cycle feature for medium-gauge applications.

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Technical Specs

  • Item Drawn Arc Stud Welder
  • Input Voltage 230/460/575
  • Transformer Rating 850 amps
  • Fusing 60A@230, 30A@460/575
  • Capacitance N/A
  • Stud Range #4 - 1/2"
  • Duty Cycle 1/4" 12/min, 5/16" 10/min, 3/8" 7/min, 1/2" 3/min
  • Timing Control .01 - 1.0 Seconds
  • Output Range 200-850
  • Features 3 Phase Power For More Stable Arc, Stepless Time And Current Control, Fully Regulated Output, Short Cycle Feature For Light Guage Sheet Metal Applications
  • Height 17"
  • Width 13"
  • Length 22"
  • Includes Control Unit/Power Source, 25ft Weld/Control Cable, Weld Gun, 25ft Ground Cable
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Compliance and Restrictions

  • This item is restricted for international sale.

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