TECNA 2904 X-type robot spot welding gun — 56 kVA MFDC with a belt-driven light servomotor actuator (6 Nm, 3000 rpm). Maximum welding current of 39,600 amps and up to 1,144 lbs of electrode force (on the 11.81 in. arm). Configurable with multiple arm lengths (300–700 mm).
The TECNA 2904 is a light X-type robot spot welding gun built strong and light for versatile, multi-configuration use on robotic and automated lines. It is powered by a 56 kVA medium-frequency (MFDC / inverter) transformer and driven by a belt-driven TECNA servomotor (6 Nm, 3000 rpm) for precise, programmable force control. The gun delivers a maximum welding current of 39,600 amps and a maximum electrode force of 1,144 lbs on the shortest (11.81 in. / 300 mm) arm; electrode force scales with arm length down to 571 lbs on the 27.56 in. (700 mm) arm. Water-cooled construction supports continuous robotic duty.
| Weight | 128 lbs |
|---|---|
| Gun Type | X-Type |
| Configuration | Robot Spot Welding Gun |
| Power @ 50% (kVA) | 56 |
| Power Supply | |
| Supply | 400 V / 50 Hz |
| Inverter Output | 500 V / 1000 Hz |
| Max Short Circuit Current (kA) | 39.6 |
| No-Load Secondary Voltage (V) | 8.4 |
| Permanent Current (A) | 4400 |
| Max Welding Current (A) | 39600 |
| Max Electrode Force | 1144 lbs (509 daN) |
| Force @ 300mm Arm [4901] | 1144 lbs (509 daN) |
| Force @ 350mm Arm [4902] | 1018 lbs (453 daN) |
| Force @ 400mm Arm [4903] | 914 lbs (407 daN) |
| Force @ 450mm Arm [4904] | 834 lbs (371 daN) |
| Force @ 500mm Arm [4905] | 762 lbs (339 daN) |
| Force @ 600mm Arm [4906] | 651 lbs (290 daN) |
| Force @ 700mm Arm [4907] | 571 lbs (254 daN) |
| Actuator Type | |
| Actuator Torque Rating | 6 Nm |
| Servomotor Speed | 3000 rpm |
| Max Electrode Throat Depth | 27.56 in. (700 mm) |
| Gun Weight | 127.87 lbs (58 kg) |
| Transformer | MFDC 56 kVA / 400 V / 50 Hz |
| Transformer Weight | 43.43 lbs (19.7 kg) |
| Water Cooling Flow | 1.6 gpm (6 lpm) |
| Product Type |
