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.

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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

“MICRO8” WELDING CONTROL

The “MICRO8” weld synchronous control board with a diode microprocessor cpntrolled in 5 steps is equipped with the double programme and pulses.

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