TECNA 7903 Portable AC Spot Weld Gun

6 kVA | Hand-Operated | Water-Cooled | Single-Phase AC

(844) WSI-WELD
(216) 475-5629
EMail WSI
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TECNA 7903 Portable Weld Gun

The TECNA 7903 is a 6 kVA, hand-operated, single-phase AC portable weld gun with customer choice of water-cooled arms. The TECNA 7903 weld gun is suitable for welding two pieces of 0.079 in. (2 mm) mild steel. Featuring an extensive range of optional arms and electrodes, the TECNA 7903 is perfect for auto body repair shops and maintenance shops.

  • Model: TECNA 7903
  • Gun type: Scissor-type
  • Power @ 50% duty cycle:  6 kVA
  • Power supply:  Single-phase AC
  • Max. weld current: 5,750 amps
  • Max. weld force: 270 lbs.
  • Max. electrode throat depth: 19.69
  • Recommended tool balancers: TECNA 9356 and 9357

Current IN-STOCK Inventory: 1

* TECNA 7903 portable weld guns are typically IN-STOCK at Weld Systems Integrators. WSI maintains an inventory at our Warrensville Heights, Ohio location. Give us a call at 844-WSI-WELD, 216-475-5629, or complete the form below to verify available inventory.

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If you have any questions on WSI Select – IN-STOCK equipment available from Weld Systems Integrators, please call 844-WSI-WELD or +1-216-475-5629 and ask to speak with a WSI Engineer.

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    • Welds right out of the box
    • 220V / 60 Hz / single-phase AC
    • Customer choice of water-cooled arms
    • Can weld up to 2 pieces of 0.079 in. (2 mm) steel
    • Weld force: 270 – 85.43 lbf. (120 – 38 daN)
    • Throat depth: 5.91 – 19.69 in. (150 – 500 mm)
    • Easily mounts to bench
    • Synchronous built-in electronic timer with SCR from 2 to 65 cycles
    • Weighs 26 lbs. (12 kg) plus arms
    • No shop air required
    • Fully water cooled – 0.24 in. (6 mm) water connection
    • Recommended tool balancers: TECNA 9356 and 9357
    SPECIFICATIONSMODEL790079027903
    Nominal power 50%kVA22.56
    Continuous powerkVA1.411.774.25
    Max. short circuit powerkVA16.520.520.5
    Max. welding powerkVA131616
    Secondary no load voltageV2.32.52.5
    MAINS SUPPLY
    Nominal primary voltage / frequency* V/Hz220/60 (In-Stock) - 440/60 (Available on Request)220/60 (In-Stock) - 440/60 (Available on Request)220/60 (In-Stock) - 440/60 (Available on Request)
    Connection powerkVA9.513.513.5
    Delayed fusesA20 @ 220 - 12 @ 44020 @ 220 - 12 @ 44020 @ 220 - 12 @ 440
    Primary cross section cable Length < 15 min2 (mm2)0.004 (2.5)0.004 (2.5)0.004 (2.5)
    SECONDARY CURRENT
    Nominal currentkA0.8712.4
    Continuous currentkA0.610.71.7
    Short circuit currentkA7.28.28.2
    Max. welding currentkA5.756.556.55
    Duty cycle with max. weld current%1.11.16.7
    ARMS AND ELECTRODES
    Arms lengthin. (mm)4.92 - 19.69 (125 - 500)4.92 - 19.69 (125 - 500)5.91 - 19.69 (150 - 500)
    Arms gapin. (mm)3.78 (96)3.70 (94)3.70 (94)
    Armsø in. (mm)0.79 (20)0.87 (22)0.87 (22)
    Arms-holders øø in. (mm)0.71 (18)0.71 (18)0.71 (18)
    Electrode-holders øin. (mm)'-'-0.55 (14)
    Electrode øin. (mm)0.39 (10)0.47 (12)ø 0.43 - 5° (10.8-5°)
    Min-max. electrode strokein. (mm)2.17 - 7.28 (55 - 185)2.17 - 7.28 (55 - 185)2.17 - 7.28 (55 - 185)
    Electrode force with L=125 armsdaN120120120
    Electrode force with L=500 armsdaN383838
    COMPRESSED AIR
    Hose connectionø in. (mm)'-'-'-
    Max. operating pressurebar'-'-'-
    Air consumption for 1000 spotsNm3'-'-'-
    WATER COOLING
    Hose connection: inlet: outletø in. (mm)'-'-0.24 (6)
    Max. operating pressurebar'-'-2.5
    Consumption at full loadl/h'-'-150
    DIMENSIONS
    Width/depth/heightø in. (mm)3.54 - 14.57 - 9.06 (90 - 370 - 230)3.54 - 14.57 - 9.06 (90 - 370 - 230)3.54 - 14.57 - 9.06 (90 - 370 - 230)
    Net weightlbs. (kg)23.15 (10.5)24.25 (11)26.46 (12)
    Gross weightlbs. (kg)26.46 (12)28.66 (13)33.07 (15)
    Box: width/depth/heightcm17-46-3517-46-3528-61-36
    Mild steel sheetsin. (mm)0.08 - 0.08 (2 + 2)0.10 - 0.10 (2.5 + 2.5)0.08 - 0.08 (2 + 2)
    Mild steel rodsø in. (mm)0.24 - 0.24 (6 + 6)0.32 - 0.32 (8 + 8)0.24 - 0.24 (6 + 6)
    Aerial noise produceddB(A)<70<70<70
    Level of vibrationsm/s2<2.5<2.5<2.5

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