Product Description

The PST650-EW is a compactly designed 800 Amps weld controller from Rexroth. By mass, its weight is approx. 11kgs. The design of the integrated power supply unit of this equipment is a two-phase thyristor power supply unit that leverages on non-linear metal-oxide varistors (MOVs) for protection against overvoltage. The PST650-EW features a voltage rating of 400 – 600 volts and a frequency of 50/60 Hertz.

This equipment loses heat through a water-cooled method. The minimum flow quantity of the cooling liquid is 10 litres per minutes, and it experiences a maximum pressure difference of 0.9 bar. The nominal current of this model has a maximum value of 800 A and an output current of 2500 A (max.) at a duty cycle of 10 %. The tightening torque of the terminal connections of the PST650-EW is rated between 41 – 46 Nm. Also, the cross-sectional area of the terminal connections is 240 mm². The nominal power of this weld controller at a duty cycle of 50 %, 80 % utilization and 400 V_AC is 565 kVA.

For the best welding performance, the functionality of this equipment and its components must be examined every 6 months. Also, the cooling water unit of the PST650-EW must be checked consistently for leaks and potential issues. It is recommended to always the appropriate cooling water additives to prevent the growth of algae and other performance-diminishing substances. All defective components and parts of the PST650-EW must be replaced with immediate effect. This equipment uses a buffer battery, and it must be replaced at an interval of 2 years. All installation, assembling, repair, dismantling and maintenance procedures should be handled by certified and qualified personnel. This unit can be shipped globally with a one-year warranty period from Wake Industrial.