SD50 HF-400 inverter pedestal spot welder

SD series linear pedestal spot welder 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.

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Caratteristiche tecniche 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

“MICRO8” WELDING CONTROL

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

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