SD120 HF-800 inverter pedestal spot welder
SD serie linear spot welder with 120KVA 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 | SD60 HF600 | SDP60 HF600 | SD120 HF800 | SDP120 HF800 |
|---|---|---|---|---|
| Nominal power 50% ED | 90 KVA | 90 KVA | 120 KVA | 120 KVA |
| Max short-circuit power | 100 KVA | 100 KVA | 140 KVA | 140 KVA |
| Maximum welding power | 100 KVA | 100 KVA | 140 KVA | 140 KVA |
| Nominal primary voltage | 400 V | 400 V | 400 V | 400 V |
| Nominal frequency | 50 Hz | 50 Hz | 50 Hz | 50 Hz |
| Secondary voltage | 7,6 V | 7,6 V | 8,8 V | 8,8 V |
| Permanent secondary current | 8,6 KA | 8,6 KA | 7,2 KA | 7,2 KA |
| Short-circuit current | 25 KA | 25 KA | 40 KA | 40 KA |
| Duty cycle at maximum welding current | 14,3% | 14,3% | 13,8% | 13,8% |
| Connection power | 67 KVA | 67 KVA | 136 KVA | 136 KVA |
| Power subbly cable section (≤40 int. line) | 35 mm² | 35 mm² | 75 mm² | 75 mm² |
| Pressure at the electrodes at 6 atm. (600 KPa) | 900 daN | 900 daN | 900 daN | 900 daN |
| Operation | electropneumatic | |||
| Cooling | water | |||
| Distance between plates | 160÷370 mm | 160÷370 mm | 160÷370 mm | 160÷370 mm |
| Useful depth | 160÷760 mm | 160÷760 mm | 160÷760 mm | 160÷760 mm |
| Arm lenght | 400÷750 mm | – | 450÷750 mm | – |
| Arm diameter | 80 mm | – | 80 mm | – |
| Lenght and diameter plugs | 150 ø25 mm Sup. / 250 ø25 mm Inf. Cono 18 | |||
| Electrodes stroke | 80 mm | 80 mm | 80 mm | 80 mm |
| Air consumption (mc / 1000 points) | 4,6 | 4,6 | 9,2 | 9,2 |
| Water consumption | 4 l/min | 4 l/min | 5 l/min | 5 l/min |
| Compressed air pressure (1 bar=100 KPa) | 600 KPa | 600 KPa | 600 KPa | 600 KPa |
| Dimensions L x W x H | 1260x455x1610 mm | 1260x455x1610 mm | 1260x455x1610 mm | 1260x455x1610 mm |
| Weight | 750 Kg | 750 Kg | 860 Kg | 860 Kg |
