TECNA 4663N rocker arm spot welder — 50 kVA, air-operated, single-phase AC. Maximum welding current of 16,500 amps, maximum electrode force of 584 lbs, and maximum throat depth of 36.0 in. with adjustable arms, stroke, and throat. Te101 microprocessor control.
The TECNA 4663N pairs a 50 kVA single-phase AC transformer with air-operated actuation. The 4663N provides a maximum welding current of 16,500 amps, a maximum electrode force of 584 lbs, and a maximum throat depth of 36.0 in. Arm length, electrode stroke, and throat depth are all independently adjustable to accommodate varied part geometries. A water-cooled, epoxy-resin-coated transformer supports extended duty cycles. The standard TE101 microprocessor weld control is front-mounted for real-time parameter viewing. Within the 4660-series, the 4663N is a 50 kVA pneumatic model offering the longest reach in the 4660-series with a 36-in. maximum throat depth, paired with a 584-lb maximum electrode force for deep-reach applications where extended access is required.
Also listed as 4663NX (US-configured version).
| Weight | 514 lbs |
|---|---|
| Configuration | Oscillating-Arm Spot |
| Adjustable Arm Depth | Yes |
| Nominal Power 50% (kVA) | 50 |
| Max Welding Power (kVA) | 82 |
| No-Load Secondary Voltage (V) | 6.1 |
| Max Welding Current (A) | 16500 |
| Thermal Current 100% (A) | 5700 |
| Supply | 220 / 440 V / 60 Hz |
| Delayed Fuses (220 V) | 175 A |
| Delayed Fuses (440 V) | 100 A |
| Mains Cable (≤30m, 220–440 V) | 0.05 in² (35 mm²) |
| Insulation Class | F |
| Compressed Air | 94 psi (6.5 bar) |
| Air Consumption /1000 Spots | 219–159 ft³ (6.2–4.5 Nm³) |
| Min Throat Depth | 18.90 in. (480 mm) |
| Max Electrode Force | 584 lbs (260 daN) |
| Max Elec Force (Min Depth) | 584 lbs (260 daN) |
| Electrode Stroke (Min Depth) | 0.20–2.95 in. (5–75 mm) |
| Max Throat Depth | 31.50 in. (800 mm) |
| Max Elec Force (Max Depth) | 359 lbs (160 daN) |
| Electrode Stroke (Max Depth) | 0.20–4.72 in. (5–120 mm) |
| SC Current @ Max Depth (kA) | 12.2 |
| SC Current @ Max Gap (4638) (kA) | 12.6 |
| Min Gap (Opt. 4638) | 7.68 in. (195 mm) |
| Max Gap (Opt. 4638) | 19.69 in. (500 mm) |
| Water Cooling Flow | 1.06 gpm (4 lpm) |
| Min Water Pressure | 36 psi (2.5 bar) |
| Aerial Noise | <70 dB(A) |
| Arm Ø | 1.97 in. (50 mm) |
| Electrode-Holder Ø | 0.98 in. (25 mm) |
| Electrode Taper Ø | 0.58 in. (14.8 mm) |
| Electrode Taper Standard | 5RW/2MT |
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