TECNA Single-Phase AC Air-Operated 16 – 50 kVA Rocker Arm Spot Welders from TECNADirect.com

TECNA Models 4645N, 4646N, 4647N, 4648N, 4649N, 4660N, 4661N, 4662N, 4663N, 4666N

The 16 – 50 kVA TECNA air-operated rocker arm spot welders are designed to meet every need of spot welding. The new stationary ergonomic frame designed by TECNA helps to facilitate the operator’s work. In addition, the control unit has been positioned frontally to allow the operator to view the welding data even during the working cycle. The pneumatic commands and the compressed air pressure gauge have been placed at the top for easier adjustment and reading.


We currently stock the WTR-4647 (20 kVA), WTR-4649 (25 kVA), WTR-4662 (50 kVA) and the WTR-4666 (50 kVA) TECNA air-operated rocker arm spot welders. Additional TECNA models WTR-4645 (16 kVA), WTR-4646 (20 kVA), WTR-4648 (25 kVA), WTR-4660 (35 kVA), WTR-4661 (35 kVA) and the WTR-4663 (50 kVA) are available upon request.


  • Air-operated, lube-free cylinder eliminates oil mist in the shop environment.
  • Electrode force is adjustable via integrated filter / regulator combination.
  • Reduce shop noise with integrated speed control valves, shock absorber for end of cylinder stroke, and air exhaust mufflers.
  • Two-stage electronic footswitch initiation (1st stage closes tips without welding, 2nd stage initiates weld schedule.)
  • Pre-wired to accept a second footswitch (Option 72977).
  • A second footswitch allows for immediate recall of a second weld time / current setting. This is helpful when different settings are required on the same workpiece.
  • PINCH POINT SAFETY OPTION: WSI-supplied TECNA Rocker Arm Welders are available with UNITROL Soft Touch Safety for pinch point protection.
TECNA Air-Operated 20-50 kVA Rocker Arm Welder | TECNADirect.com
Single-Phase AC - 16-25 kVASingle-Phase AC - 35-50 kVAALL Air-Operated Welders

*May be supplied capable of operating on other voltages/frequencies. Please ask for details.

*May be supplied capable of operating on other voltages/frequencies. Please ask for details.

ALL Air-Operated Welders

  • Arm depth is adjustable by up to 12.6” (320mm) depending on your working requirements.
  • Adjustable Drop Arm Assembly, Option 6030, is available on all models. Note that larger arm gap reduces available welding current. The greater the spacing between the arms, the lower the welding current available at the electrodes.

For more information, on the TECNA Single-Phase AC Air-Operated 16 – 50 kVA Rocker Arm Spot Welders, REQUEST A QUOTE, or give us a call at 844-44-TECNA or +1-216-475-5629 for IN-STOCK inventory available now with immediate shipping.

TECNADirect.com by Weld Systems Integrators

TECNADirect.com, a division of Weld Systems Integrators, maintains an inventory of TECNA welding equipment, including rocker arm spot welders, press-type spot welders and press / projection welders. We also carry a complete line of bench welders, portable spot welding guns, tool balancers and accessories. Contact us TODAY at 844-44-TECNA, and ask about our IN-STOCK inventory at our Warrensville Heights, Ohio location.

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