PSR Gyratory Screeners

PSR Gyratory Screeners

  • Powerful, efficient, gentle, maintenance-free, hygienic


Our PSR gyratory screeners are high performance screening machines for complex tasks in the food & beverage, chemical, and numerous other industries.

These gyratory screeners are characterized by a simple, patented design and driven by a single vibrating motor with a frequency converter.


PSR gyratory screeners operate with low frequency vibration in a slightly inclined screen plane; the vibrational waveform between the between the inlet and outlet gradually evolves from a gyratory motion to a linear movement. This screening motion ensures rapid distribution of the product across the complete screen width, so that the particle size fractions are separated efficiently yet at the same time extremely gently.


  • High specific screening capacity, high separation efficiency
  • Very gentle handling of fragile products such as agglomerated food & beverage powders
  • High hygienic standard
  • Driven by a single eccentric motor (no gear)
  • Quick-change screens
  • Optimal vibration amplitude can be set while operational
  • Low noise level, maintenance-free


The following special versions can be supplied:

  • Parts in contact with the product made from any commonly used stainless steels
  • Special designs and finishes to pharmaceutical specifications
  • Execution with integral bouncing ball cleaning system
  • Execution for mounting with a supporting or suspending structure

All machines are very user friendly. Among other things, the covers are secured with quick-release fasteners. The screen cloth can be taken out of the screen box in a few simple steps in order to change the screen cloths. The seals attached between the screen box and the machine cover are easily removable for cleaning or replacement.