SDP50 HF-400 inverter pedestal spot welder
SDP50 HF-400 series inverter pedestal spot welder
SDP series straight downward projection column-mounted punching machine with 50KVA power at 50%. Very sturdy and rigid structure. Integrated water-cooling installation of transformer, electrode holder and electrodes. The standard versions are equipped with a single stroke pneumatic cylinder and double safety control board. Pedal operated. Wide selection of electrode holders and electrodes for different special applications. The unit also includes the “MICRO8” weld synchronous control board with a diode microprocessor controlled in 5 steps, equipped with double programme and pulses. 1000Hz control frequency inverter generator for medium frequency transformers. The compact device allows to control the primary current of the power transformer keeping its value constant regardless of the variations in the mains voltage and any thermal and aging drifts of the different components of the system. The working frequency of 1KHz allows to reduce the dimensions of the transformer and to improve the form factor of the output current by reducing the ripple of the current and allowing the creation of more controlled welding points both in terms of time and maximum current. The inverter control board interfaces with the remote unit such as MICRO8 or J-TEK provides the welding parameters and sends error codes to manage diagnostics in the event of anomalies.
| Technical features | SD30 HF250 | SDP30 HF250 | SD50 HF400 | SDP50 HF400 |
|---|---|---|---|---|
| Nominal power 50% ED | 30 KVA | 30 KVA | 50 KVA | 50 KVA |
| Max short-circuit power | 40 KVA | 40 KVA | 60 KVA | 60 KVA |
| Max welding power | 40 KVA | 40 KVA | 60 KVA | 60 KVA |
| Nominal primary voltage | 400 V | 400 V | 400 V | 400 V |
| Nominal frequency | 50 Hz | 50 Hz | 50 Hz | 50 Hz |
| Secondary voltage | 5,2 V | 5,2 V | 6,5 V | 6,5 V |
| Permanent secondary current | 6 KA | 6 KA | 6 KA | 6 KA |
| Short-cirucit current | 15 KA | 15 KA | 20 KA | 20 KA |
| Max welding secondary current | 15 KA | 15 KA | 20 KA | 20 KA |
| Duty cycle at maximum welding current | 50% | 50% | 50% | 50% |
| Connection power | 30 KVA | 30 KVA | 40 KVA | 40 KVA |
| Power supply cable section (≤40 int. linea) | 10 mm² | 10 mm² | 25 mm² | 25 mm² |
| Pressure at the electrodes at 6 atm. (600 KPa) | 230 daN | 230 daN | 310 daN | 310 daN |
| Operation | electropneumatic | |||
| Cooling | water | |||
| Distance between plates | 205÷460 mm | 210 mm | 270÷510 mm | 210 mm |
| Useful depth | 510÷810 mm | 510÷810 mm | 510÷810 mm | 510÷810 mm |
| Arm lenght | 400÷750 mm | – | 450÷750 mm | – |
| Arm diameter | 50 mm | – | 60 mm | – |
| Lenght and diameter plugs | 200 ø25 mm | 200 ø25 mm | 200 ø25 mm | 200 ø25 mm |
| Electrodes stroke | 80 mm | 80 mm | 80 mm | 80 mm |
| Air consumption (mc/1000 points) | 1,1 | 1,1 | 2,1 | 2,1 |
| Water consumprion | 4 l/min | 4 l/min | 4 l/min | 4 l/min |
| Compressed air pressure (1 bar=100 KPa) | 600 KPa | 600 KPa | 600 KPa | 600 KPa |
| Dimensions L x W x H | 1100x415x1430 mm | 1100x415x1430 mm | 1200x425x1520 mm | 1200x425x1520 mm |
| Weight | 240 Kg | 250 Kg | 570 Kg | 580 Kg |
