TECNA MEDIUM-DUTY SPOT WELDING GUNS

Models WTG-3321, WTG-3322, WTG-3323, WTG-3324, WTG-3327, WTG-3328

WSI is a Master Distributor and Stocking Importer for TECNA resistance welding equipment, including spot and projection welders, portable guns and balancers. We keep an inventory of TECNA Medium-Duty Spot Welding guns IN-STOCK at our Warrensville Heights location for quick shipment and delivery.

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

TECNA WTG-3321 Portable Spot Welding Gun | Weld Systems IntegratorsTECNA WTG-3322 Portable Spot Welding Gun | Weld Systems IntegratorsTECNA WTG-3323 Portable Spot Welding Gun | Weld Systems Integrators
WTG 3321
16kVA
WTG 3322
23kVA
WTG 3323
23kVA
TECNA WTG-3324 Portable Spot Welding Gun | Weld Systems IntegratorsTECNA WTG-3327 Portable Spot Welding Gun | Weld Systems IntegratorsTECNA WTG-3328 Portable Spot Welding Gun | Weld Systems Integrators
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:
SPECIFICATIONUNITSMODEL
WTG-3321WTG-3322WTG-3323WTG-3324WTG-3327WTG-3328
Gun TypeScissor (L)Scissor (L)CScissor (L)Scissor (L)Scissor (L)
Power @ 50% Duty CyclekVA162323233838
Max PowerkVA3765635211092
Short Circuit CurrentA16,00021,00021,00016,50027,00022,500
Thermal Current @ 100%kA44.254.254.255.45.4
Secondary VoltageV2.83.83.83.855
* Supply Voltage (@60Hz)V440440440440440440
Primary Cables Ø (up to 30m)mm²101616162525
Delayed Fuses @ 440VACA324040408080
Arm Spacingin (mm)6.5 (165)6.5 (165)4.7 (120)8.9 (225)6.1 (155)11.0 (280)
Arm Minimum Lengthin (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 Strokein (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 Strokein (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 Lengthin (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 Strokein (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 Strokein (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 Supplypsi (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 Øin (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. Lengthin (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. Lengthin (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 Øin (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 A66808080100100
0.060×0.060” (1.5×1.5mm) Class A3232324444
0.080×0.080” (2x2mm) Class A141616162020
0.098×0.098” (2.5×2.5mm) Class A1414
0.118×0.118” (3x3mm) Class B88
Net Weight (w/cables, hoses, suspension & shortest arms)lbs (kg)101 (46)114 (52)117 (53)121 (55)167 (76)172 (78)
Packing Box Dimensionsin (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 Requiredlbs (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 RequiredModel #9367BR9368BR9368BR9368BR9370BR9370BR
Long Arms Capacity Requiredlbs (kg)121-143 (55-65)143-165 (65-75)143-165 (65-75)198-231 (90-105)198-231 (90-105)
Long Arms Balancer RequiredModel #9368BR9369BR9369BR9371BR9371BR
* May be supplied capable of operating on other voltages / frequencies. Please ask for details.
CONTACT Weld Systems Integrators for more information on our TECNA Portable Welding Gun solutions. For immediate assistance, please feel free to give us a call at 844-WSI-WELD.