TECNA 4648N rocker arm spot welder — 25 kVA, air-operated, single-phase AC. Maximum welding current of 14,400 amps, maximum electrode force of 539 lbs, and maximum throat depth of 21.65 in. with adjustable arms, stroke, and throat. Te101 microprocessor control.
The TECNA 4648N pairs a 25 kVA single-phase AC transformer with air-operated actuation. The 4648N provides a maximum welding current of 14,400 amps, a maximum electrode force of 539 lbs, and a maximum throat depth of 21.65 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 4640-series pneumatic lineup, the 4648N provides 25 kVA and 14,400 amps into a shorter 21.65-in. throat, delivering the highest current density of the 4647-4649 group.
| Weight | 315 lbs |
|---|---|
| Configuration | Pneumatic Spot |
| Adjustable Arm Depth | Yes |
| Nominal Power 50% (kVA) | 25 |
| Max Welding Power (kVA) | 68 |
| No-Load Secondary Voltage (V) | 4.6 |
| Max Short Circuit Current (kA) | 18 |
| Max Weld Curr Lt Alloys (kA) | 16.3 |
| Max Weld Curr Steel (kA) | 14.4 |
| Thermal Current 100% (kA) | 3.8 |
| Supply | 220 / 440 V / 60 Hz |
| Delayed Fuses (220 V) | 100 A |
| Delayed Fuses (440 V) | 50 A |
| Mains Cable (≤30m, 220–440 V) | 0.02 in² (16 mm²) |
| Insulation Class | F |
| Compressed Air | 94–145 psi (6.5–10 bar) |
| Air Consumption /1000 Spots | 152 ft³ (4.3 Nm³) |
| Min Throat Depth | 9.06 in. (230 mm) |
| Max Elec Force (Min Depth) | 539 lbs (240 daN) |
| Electrode Stroke (Min Depth) | 0.31–1.73 in. (8–44 mm) |
| Max Throat Depth | 21.65 in. (550 mm) |
| Max Elec Force (Max Depth) | 258 lbs (115 daN) |
| Electrode Stroke (Max Depth) | 0.59–3.35 in. (15–85 mm) |
| SC Current @ Max Arm Len (kA) | 13 |
| Water Cooling Flow | 0.98 gpm (3.7 lpm) |
| Min Water Pressure | 36 psi (2.5 bar) |
| Aerial Noise | <70 dB(A) |
| Arm Ø | 1.57 in. (40 mm) |
| Electrode-Holder Ø | 0.87 in. (22 mm) |
| Electrode Taper Ø | 0.58 in. (14.8 mm) |
| Electrode Taper Standard | 4RW/1MT |
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