TECNA 6021F rocker arm spot welder — 40 kVA, air-operated, MFDC / inverter. Maximum welding current of 15,200 amps, maximum electrode force of 584 lbs, and maximum throat depth of 31.5 in. with adjustable arms, stroke, and throat. Te751 microprocessor control.
The TECNA 6021F pairs a 40 kVA MFDC / inverter transformer with air-operated actuation. The 6021F provides a maximum welding current of 15,200 amps, a maximum electrode force of 584 lbs, and a maximum throat depth of 31.5 in. Arm length, electrode stroke, and throat depth are all independently adjustable to accommodate varied part geometries. TECNA MFDC inverter technology delivers weld-to-weld repeatability and more efficient energy use than comparable single-phase AC welders. The TE751 microprocessor control provides a widescreen display for monitoring weld parameters during operation. Within the 6020-series, the 6021F shares the 6020F’s 40 kVA power and 15,200-amp maximum current; the 6021F extends maximum throat depth to 31.50 in. at a 584-lb maximum electrode force, trading force capacity for reach.
| Weight | 441 lbs |
|---|---|
| Configuration | Rocker Arm Spot |
| Adjustable Arm Depth | Yes |
| Standard Control Unit | TE751 |
| Nominal Power 50% (kVA) | 40 |
| Max Welding Power (kVA) | 85 |
| No-Load Secondary Voltage (V) | 6.1 |
| Max Welding Current (A) | 19000 |
| Thermal Current 100% (A) | 4000 |
| Max Weld Curr Alum (kA) | 17.1 |
| Max Weld Curr Steel (kA) | 15.2 |
| Supply | 400 V / 50 Hz |
| Delayed Fuses (380–415 V) | 40 A |
| Mains Cable (L=30m, 380–415 V) | 0.02 in² (16 mm²) |
| Insulation Class | F |
| Compressed Air (Min/Max) | 94–145 psi (6.5–10 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) | 0.31–3.03 in. (8–77 mm) |
| Max Throat Depth | 31.50 in. (800 mm) |
| Max Elec Force (Max Depth) | 359 lbs (160 daN) |
| Electrode Stroke (Max Depth) | 0.31–4.92 in. (8–125 mm) |
| Water Cooling Flow | 1.59 gpm (6 lpm) |
| Min/Max Water Pressure | 36–58 psi (2.5–4 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) |
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