Testing of die-cast rotors, for the EV sector.
The rotor is tested in 2 modes: through O3/BPR transducer for detecting discontinued bars, blowholes, porosity, etc..(like O6/C ); using a sample stator, inside which the rotor being tested is housed, to calculate the resistance and reactance of the die-cast cage. The sample stator is interchangeable and assembled on a relevant housing, moved by a robotic axle. Another adjacent station enables LASER marking for good parts. Automatic loading and unloading using a ROBOT.

Maximum rotor dimensions:

  • outer diameter 200 mm
  • height with 500 mm shaft

Rotation speed: 400 rpm.


  • Interrupted bars
  • Blowholes or porosity
  • Bar gradient angle
  • Short circuit between bars due to infiltration
  • Quality of aluminum
  • Eccentric cage


  • Safety lamps
  • Air conditioning

Related tests

Die cast rotor test

This test has been carried out by RISATTI INSTRUMENTS since 1975, for the immediate detection of the main defects found on die-cast rotors.

Related machines

Our other creations. See the datasheet for more information.


Partial discharge detector for laboratory on Surge and dielectric strength.
H5 NCP fronte resiz


Test on stators with standard 8 terminals expandable up to 16, in groups of 4.


Test on specific stators by sector ELECTRIC VEHICLES – EV.

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