TECNA Medium-Duty Spot Welding Guns

TECNA Medium-Duty Spot Welding Guns are available in C-Type and Scissor-Type (X-Type) in 16kVA, 23kVA and 38kVA.

TECNADirect.com is a Master Distributor and Stocking Importer of TECNA Pedestal Welders, including Rocker Arm Spot Welders, Press-Type Spot Welders and Press / Projection Welders. We also carry a complete line of Bench WeldersPortable Spot Welding Guns, Tool Balancers and Accessories. Best of all, we keep an inventory IN-STOCK at our Warrensville Heights location for quick shipment and delivery.

TECNA WTG-3321 Welding Gun | TECNADirect.com TECNA WTG-3322 Welding Gun | TECNADirect.com TECNA WTG-3323 Welding Gun | TECNADirect.com
WTG 3321
16kVA
WTG 3322
23kVA
WTG 3323
23kVA
TECNA WTG-3324 Welding Gun | TECNADirect.com TECNA WTG-3327 Welding Gun | TECNADirect.com TECNA WTG-3328 Welding Gun | TECNADirect.com
WTG 3324
23kVA
WTG 3327
38kVA
WTG 3328
38kVA
WSI-TECNA Medium Duty Spot Welding Gun Features:
  • Pneumatically-operated suspended gun with integrated TE300, TE470 or TE480 microprocessor-based welding controls.
  • Intelligent Design, Small Dimensions, and High Welding Capacity deliver Maximum Productivity.
  • High electrical efficiency.
  • Totally-enclosed unit includes rubber bumpers in some areas, for safe and easy operation.
  • Accurate maneuverability at any angle is guaranteed by gyro suspension mounted on sealed bearings, coupled with a TECNA balancer.
  • Rotation lock allows locking of multiple axes of motion.
  • Accepts a broad range of standard and special arms to accommodate special applications. “C” type gun assists in accessing unconventional areas.
  • Chromium copper electrode holders offer long life in a production environment, and are designed for use at angles of up to 30°. Ask about WSI-exclusive 30-degree arms!
  • Long, adjustable Welding Stroke enables welding in difficult-to-reach areas, including welding reinforcements and ribs.
  • Temporary extra stroke (retraction stroke) allows reaching into tough spots.
  • Water-cooled transformer, with epoxy resin-coated windings for long life.
  • Water-cooled arms, electrode holders and electrodes for best performance and maximum use.
  • SCR (Silicon-Controlled Rectifier) is insulated from the cooling circuit, and includes a thermal cutoff switch for overheat protection.
  • Lube-free chromium plated cylinder and shaft offer a long service life in a production environment.
  • Lube-free pneumatic circuit eliminates oil mist in your shop.
  • Trigger Handle Safety prevents accidental initiation.
  • Trigger Handle Controls enable selection between 2 or 4 welding programs, as well as Stage 1 ‘weld / no-weld’ function.
  • New for 2017: Power Supply Cable is replaceable without opening up the welder!
WSI-Advantage Standard Specifications Include:
  • WSI-SPEC offers reduced installation cost.
  • WTG3321-24: TE300 Weld Control
  • WTG3327-28: TE470 Weld Control (with 2 program selector.
  • Filter / Regulator Assembly (items 70503 / 70504)
  • Integrated Earth Leakage Detection and Circuit Breaker/ GFCI. Must specify voltage and frequency at time of order.
  • 50’ (15 meter) umbilical (Air/Water/Power Hoses/Cable) reduces installation cost and simplifies maintenance. Access to the Air
  • Regulator and GFCI is easy, as they are typically at operator shoulder height once the gun is properly-festooned and installed on a bridge rail or jib crane.
  • Emergency-stop (E-STOP) button to immediately stop machine operation.
EURO-Specifications Include:
  • WSI-Spec Standard Equipment EXCEPT
    >  Basic TE300 control on all welders, regardless of size and arm length specified.
    >  21’ (6.5 meter) umbilical (Air/Water/Power Hoses/Cable) offers lower initial cost, but requires running additional cable and hose in customer plant. GFCI and Air Regulator will be mounted near the ceiling with the gun installed and properly-festooned on a bridge rail or jib crane, complicating weld parameter adjustment and maintenance.
Options and Accessories:
  • Ask WSI about custom arms! In addition to the arms listed in this catalog, an almost infinite variety of configurations is available to suit customer welding requirements. WSI is an expert at engineering and manufacturing custom weld gun arms.
  • Shielded supply cable for even longer life in heavy manufacturing environments.
  • Various lengths of umbilical are available for special order. These include 21.3’ (6.5M), 32.8’ (10M), 42.6’ (13M), 49.2’ (15M).
    Note: WSI-Spec guns always include 15M cables.
  • Water Flow Switch prevents the weld gun from passing weld current is cooling water is not flowing.
  • Keyed Programming Lockout Switch for TE300 (Option 3311) and Legacy TE450 (Option 3312) Controls (see page 13).
    Note: TE470 / 480 controls have a programmable passcode lock.
  • A wide variety of handle configurations are available for easy maneuverability and activation (see page 15).
Medium-Duty Spot Welding Gun Specifications:
SPECIFICATION UNITS MODEL
WTG-3321 WTG-3322 WTG-3323 WTG-3324 WTG-3327 WTG-3328
Gun Type Scissor (L) Scissor (L) C Scissor (L) Scissor (L) Scissor (L)
Power @ 50% Duty Cycle kVA 16 23 23 23 38 38
Max Power kVA 37 65 63 52 110 92
Short Circuit Current A 16,000 21,000 21,000 16,500 27,000 22,500
Thermal Current @ 100% kA 4 4.25 4.25 4.25 5.4 5.4
Secondary Voltage V 2.8 3.8 3.8 3.8 5 5
* Supply Voltage (@60Hz) V 440 440 440 440 440 440
Primary Cables Ø (up to 30m) mm² 10 16 16 16 25 25
Delayed Fuses @ 440VAC A 32 40 40 40 80 80
Arm Spacing in (mm) 6.5 (165) 6.5 (165) 4.7 (120) 8.9 (225) 6.1 (155) 11.0 (280)
Arm Minimum Length in (mm) 7.5 (190) 7.5 (190) 9.8 (250) 9.8 (250) 9.8 (250)
Max Electrode Force @ 116 psi (8 bar) lbs. (daN) 629 (286) 744 (338) 660 (300) 590 (268) 1529 (695) 1529 (695)
Working Stroke in (mm) 0.2-1.0 (6-25) 0.2-0.8 (5-20) 0.2-0.8 (5-20) 0.2-1.0 (6-25) 0.4-1.0 (10-26) 0.4-1.0 (10-26)
Maximum Stroke in (mm) 1.2-1.9 (30-48) 1.1-1.6 (28-40) 1.4-2.0 (35-50) 1.2-1.9 (30-48) 1.8-2.4 (45-60) 1.8-2.4 (45-60)
Arm Maximum Length in (mm) 25.6 (650) 31.5 (800) 25.6 (650) 40.6 (1030) 32.3 (820)
Max Electrode Force @ 116 psi (8 bar) lbs. (daN) 209 (95) 205 (93) 249 (113) 343 (156) 431 (196)
Working Stroke in (mm) 0.7-2.8 (18-72) 0.7-2.9 (18-73) 0.6-2.4 (15-60) 1.6-3.9 (40-100) 1.2-3.0 (30-75)
Maximum Stroke in (mm) 3.5-5.5 (90-140) 4.0-5.7 (102-146) 3.3-4.7 (84-120) 6.5-8.9 (165-225) 5.1-6.9 (130-175)
Compressed Air Supply psi (bar) 94 (6.5) 94 (6.5) 94 (6.5) 94 (6.5) 94 (6.5) 94 (6.5)
Air per 1000 Spots @ 72.5 psi
(500kP / 5 bar)
SCF (Nm³) 141 (4) 141 (4) 141 (4) 141 (4) 265 (7.5) 265 (7.5)
Hose Inside Ø in (mm) 0.4 (10) 0.4 (10) 0.4 (10) 0.4 (10) 0.4 (10) 0.4 (10)
Water Cooling @ 36 psi (250 kP / 2.5 bar) gpm (lpm) 1.85 (7) 1.85 (7) 1.85 (7) 1.85 (7) 2.11 (8) 2.11 (8)
Max Thickness Mild Sheet Steel
w/90° Arms @ Min. Length in (mm) 0.12×0.12 (3×3) 0.16×0.16 (4×4) 0.16×0.16 (4×4) 0.14×0.14 (3.5×3.5) 0.20×0.20 (5×5) 0.20×0.20 (5×5)
w/90° Arms @ 20” (508mm) in (mm) 0.07×0.07 (1.8×1.8) 0.12×0.12 (3×3) 0.12×0.12 (3×3) 0.14×0.14 (3.5×3.5) 0.14×0.14 (3.5×3.5)
w/90° Arms @ Max. Length in (mm) 0.05×0.05 (1.2×1.2) 0.08×0.08 (2×2) 0.08×0.08 (2×2) 0.08×0.08 (2×2) 0.10×0.10 (2.5×2.5)
w/90° Arms, Cross Wire Max Ø in (mm) 0.39×0.39 (10×10) 0.55×0.55 (14×14) 0.55×0.55 (14×14) 0.47×0.47(12×12) 0.63×0.63 (16×16) 0.63×0.63 (16×16)
Welding Rate per Minute
0.040×0.040” (1x1mm) Class A 66 80 80 80 100 100
0.060×0.060” (1.5×1.5mm) Class A 32 32 32 44 44
0.080×0.080” (2x2mm) Class A 14 16 16 16 20 20
0.098×0.098” (2.5×2.5mm) Class A 14 14
0.118×0.118” (3x3mm) Class B 8 8
Net Weight (w/cables, hoses, suspension & shortest arms) lbs (kg) 101 (46) 114 (52) 117 (53) 121 (55) 167 (76) 172 (78)
Packing Box Dimensions in (mm) 12×33.5×21.7 (300x850x550) 12×33.5×21.7 (300x850x550) 13×44.1×24.8 (330x1120x630) 13×44.1×24.8 (330x1120x630) 29.9×41.3×19.7 (760x1050x500) 29.9×41.3×19.7 (760x1050x500)
Spring Balancer
Short Arms Capacity Required lbs (kg) 99-121 (45-55) 121-143 (55-65) 121-143 (55-65) 121-143 (55-65) 165-198 (75-90) 165-198 (75-90)
Short Arms Balancer Required Model # 9367BR 9368BR 9368BR 9368BR 9370BR 9370BR
Long Arms Capacity Required lbs (kg) 121-143 (55-65) 143-165 (65-75) 143-165 (65-75) 198-231 (90-105) 198-231 (90-105)
Long Arms Balancer Required Model # 9368BR 9369BR 9369BR 9371BR 9371BR
* May be supplied capable of operating on other voltages / frequencies. Please ask for details.

For more information, on TECNA Portable Spot Welding Guns, REQUEST A QUOTE, or give us a call at 844-44-TECNA or +1-216-475-5629.