TECNA 4644N – 25 kVA Rocker Arm Spot Welder

IN-STOCK Foot-Operated, Single-Phase AC Welders

(844) WSI-WELD
(216) 475-5629
EMail WSI
EQUIPMENT QUOTE

TECNA 4644N Rocker Arm Spot Welder

The TECNA 4644N is a 25 kVA, foot-operated, single-phase AC rocker arm spot welder. The 4644N features adjustable arms, electrode stroke, and force. The chrome-copper electrode holders are designed for straight and angled fittings. Standard TE101 controls are mounted on the front of the machine, allowing the operator to view data while welding.

  • Model: TECNA 4644N
  • Power @ 50% duty cycle:  25 kVA
  • Power supply:  Single-phase AC
  • Max. weld current: 11,600 amps
  • Max. weld force: 337 lbs.
  • Max. electrode throat depth: 27.56 in.

Current IN-STOCK Inventory: 5

* TECNA 4644N rocker arm spot welders 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 216-475-5629 and ask to speak with a WSI Engineer.

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    • TE101 control, mounted on the front of the machine, allows the operator to view data while welding.
    • Air pressure gauge, regulator knob, and speed controls are mounted at the top of the machine for easy monitoring and adjustment.
    • Water-cooled transformer, arms, and electrodes. Epoxy resin-coated transformer for maximum protection.
    • Adjustable electrode stroke enables access to a greater range of parts.
    • Chromium-copper electrode holders are designed for long life and heavy-duty service. It may be mounted at 12° and 90° positions in the arm. Optional Universal-Style arms are available exclusively from WSI for 1″ diameter electrode holders, and for mounting the electrode holders at 30° and 90°.
    • Adjustable throat depth enables maximum flexibility.
    • Ergonomic frame for long-term operation in production environments.
    • WSI exclusive standard low-profile lower holder enables accessing parts as small as 3″ diameter.
    • Single foot pedal (standard). Additional foot pedal (optional part #73070) on base allows mounting both foot pedals on a joint base.
    • PINCH POINT SAFETY OPTION: WSI-supplied TECNA rocker arm spot welders can be available with UNITROL Soft Touch Safety for pinch point protection.
    MODELS4640N4641N4642N4643N4644N
    Foot or air-operatedFoot-OperatedFoot-OperatedFoot-OperatedFoot-OperatedFoot-Operated
    Power @ 50% duty cycle16 kVA20 kVA20 kVA25 kVA25 kVA
    Max power35 kVA48 kVA39 kVA68 kVA55 kVA
    Secondary voltage3.4 V4 V4 V4.6 V4.6 V
    Max. short circuit current12500 A14500 A12000 A18000 A14500 A
    Max. welding current on aluminum'-'-'-16.3 kA'-
    Max. welding current on steel10 kA11.6 kA9.6 kA14.4 kA11.6 kA
    Thermal current @ 100%3.3 kA3.5 kA3.5 kA3.8 kA3.8 kA
    Supply voltage (@ 60Hz)*220 or 440 V220 or 440 VDual Voltage 220 / 440 V220 or 440 VDual Voltage 220 / 440 V
    Delayed fuses @ 220 VAC80 A80 A80 A100 A100 A
    Delayed fuses @ 440 VAC30 A40 A40 A50 A50 A
    Primary cables (up to 30m)10 mm210 mm210 mm216 mm216 mm2
    Insulation classFFFFF
    Compressed air supply (psi / bar)'-'-'-'-'-
    Air consumption per 1000 spots @ 94 psi (650kP / 6.5 bar)'-'-'-'-'-
    Arm min. length9.0 in. (230 mm)9.0 in. (230 mm)15.0 in. (380 mm)9.0 in. (230 mm)15.0 in. (380 mm)
    > Max. electrode force528 lbs. (240 daN)528 lbs. (240 daN)330 lbs. (150 daN)528 lbs. (240 daN)330 lbs. (150 daN)
    > Working stroke0.3 - 1.7 in. (8 - 44 mm)0.3 - 1.7 in. (8 - 44 mm)0.4 - 2.4 in. (10 - 60 mm)0.3 - 1.7 in. (8 - 44 mm)0.4 - 2.4 in. (10 - 60 mm)
    Arm max. length21.7 in. (550 mm)21.7 in. (550 mm)27.6 in. (700 mm)21.7 in. (550 mm)27.6 in. (700 mm)
    > Max. electrode force209 lbs. (95 daN)209 lbs. (95 daN)176 lbs. (80 daN)209 lbs. (95 daN)176 lbs. (80 daN)
    > Working stroke0.6 - 3.3 in. (15 - 85 mm)0.6 - 3.3 in. (15 - 85 mm)0.6 - 4.1 in. (15 - 105 mm)0.6 - 3.3 in. (15 - 85 mm)0.6 - 4.1 in. (15 - 105 mm)
    Short circuit current with arms @ MAX length8.4 kA10 kA8.8 kA13 kA10.5 kA
    Water cooling @ 36 psi (250 kP / 2.5 bar)1 gpm (3.8 lpm)1 gpm (3.8 lpm)1 gpm (3.8 lpm)1 gpm (3.8 lpm)1 gpm (3.8 lpm)
    Min. water pressure36 psi (2.5 bar)36 psi (2.5 bar)36 psi (2.5 bar)36 psi (2.5 bar)36 psi (2.5 bar)
    Aerial noise produced70 dB (A)70 dB (A)70 dB (A)70 dB (A)70 dB (A)
    MEASURED CONDITIONSM
    > Working stroke0.79 in. (20 mm)0.79 in. (20 mm)0.79 in. (20 mm)0.79 in. (20 mm)0.79 in. (20 mm)
    > Welding time21 cycles17 cycles26 cycles14 cycles20 cycles
    > Welding current9.4 kA11 kA9 kA13.5 kA11 kA
    > Working rating (welds per minute)10 # / min.10 # / min.10 # / min.10 # / min.10 # / min.
    Net weight297 lbs. (135 kg)315 lbs. (143 kg)321 lbs. (146 kg)319 lbs. (145 kg)326 lbs. (148 kg)
    Arms36 in. (914.4 mm)40 in. (1016 mm)40 in. (1016 mm)40 in. (1016 mm)40 in. (1016 mm)
    Electrode holders0.75 in. (19 mm)0.87 in. (22 mm)0.87 in. (22 mm)0.87 in. (22 mm)0.87 in. (22 mm)
    Electrode taper size4RW/1MT4RW/1MT4RW/1MT4RW/1MT4RW/1MT

    TECNA 4642, 4644, 4647, 4649 Rocker Arm Welders Catalog

    * Download the TECNA 4642, 4644, 4647, 4649 catalog ( PDF )

    TECNA 4640 – 4644 Installation Manual

    * Download the TECNA 4645 – 4649 installation manual ( PDF )

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