TECNA 4644N – 25 kVA Rocker Arm Spot Welder
IN-STOCK Foot-Operated, Single-Phase AC Welders
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.
WSI maintains an inventory of new and used resistance welding equipment, including TECNA rocker arm spot welders at our Warrensville Heights, Ohio location for quick shipment and delivery. Contact our knowledgeable sales team at 844-WSI-WELD or 216-475-5629.
TECNA 4644N Rocker Arm Spot Welders IN-STOCK: 3
* TECNA 4644N rocker arm spot welders are typically IN-STOCK at Weld Systems Integrators. Call 844-WSI-WELD or email salesteam@wsiweld.com for available inventory.
Please submit the following form to request additional information.
Enter WSI Serial #: TECNA-4644N on the following quote request form.
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.
- 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.
| MODELS | 4640N | 4641N | 4642N | 4643N | 4644N |
|---|---|---|---|---|---|
| Foot or air-operated | Foot-Operated | Foot-Operated | Foot-Operated | Foot-Operated | Foot-Operated |
| Power @ 50% duty cycle | 16 kVA | 20 kVA | 20 kVA | 25 kVA | 25 kVA |
| Max power | 35 kVA | 48 kVA | 39 kVA | 68 kVA | 55 kVA |
| Secondary voltage | 3.4 V | 4 V | 4 V | 4.6 V | 4.6 V |
| Max. short circuit current | 12500 A | 14500 A | 12000 A | 18000 A | 14500 A |
| Max. welding current on aluminum | '- | '- | '- | 16.3 kA | '- |
| Max. welding current on steel | 10 kA | 11.6 kA | 9.6 kA | 14.4 kA | 11.6 kA |
| Thermal current @ 100% | 3.3 kA | 3.5 kA | 3.5 kA | 3.8 kA | 3.8 kA |
| Supply voltage (@ 60Hz)* | 220 or 440 V | 220 or 440 V | Dual Voltage 220 / 440 V | 220 or 440 V | Dual Voltage 220 / 440 V |
| Delayed fuses @ 220 VAC | 80 A | 80 A | 80 A | 100 A | 100 A |
| Delayed fuses @ 440 VAC | 30 A | 40 A | 40 A | 50 A | 50 A |
| Primary cables (up to 30m) | 10 mm2 | 10 mm2 | 10 mm2 | 16 mm2 | 16 mm2 |
| Insulation class | F | F | F | F | F |
| Compressed air supply (psi / bar) | '- | '- | '- | '- | '- |
| Air consumption per 1000 spots @ 94 psi (650kP / 6.5 bar) | '- | '- | '- | '- | '- |
| Arm min. length | 9.0 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 force | 528 lbs. (240 daN) | 528 lbs. (240 daN) | 330 lbs. (150 daN) | 528 lbs. (240 daN) | 330 lbs. (150 daN) |
| > Working stroke | 0.3 - 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. length | 21.7 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 force | 209 lbs. (95 daN) | 209 lbs. (95 daN) | 176 lbs. (80 daN) | 209 lbs. (95 daN) | 176 lbs. (80 daN) |
| > Working stroke | 0.6 - 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 length | 8.4 kA | 10 kA | 8.8 kA | 13 kA | 10.5 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 pressure | 36 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 produced | 70 dB (A) | 70 dB (A) | 70 dB (A) | 70 dB (A) | 70 dB (A) |
| MEASURED CONDITIONSM | |||||
| > Working stroke | 0.79 in. (20 mm) | 0.79 in. (20 mm) | 0.79 in. (20 mm) | 0.79 in. (20 mm) | 0.79 in. (20 mm) |
| > Welding time | 21 cycles | 17 cycles | 26 cycles | 14 cycles | 20 cycles |
| > Welding current | 9.4 kA | 11 kA | 9 kA | 13.5 kA | 11 kA |
| > Working rating (welds per minute) | 10 # / min. | 10 # / min. | 10 # / min. | 10 # / min. | 10 # / min. |
| Net weight | 297 lbs. (135 kg) | 315 lbs. (143 kg) | 321 lbs. (146 kg) | 319 lbs. (145 kg) | 326 lbs. (148 kg) |
| Arms | 36 in. (914.4 mm) | 40 in. (1016 mm) | 40 in. (1016 mm) | 40 in. (1016 mm) | 40 in. (1016 mm) |
| Electrode holders | 0.75 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 size | 4RW/1MT | 4RW/1MT | 4RW/1MT | 4RW/1MT | 4RW/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 )
