Rütten RPM controller RC-051

Rütten RPM controller RC-051
Rütten RPM controller RC-051
Developed for Magnetic stirrers and Magnetic coupled stirrers. Adaptive stirring allowing constant process conditions.

Logo SSS (Sterile Storage System)    Sterile Storage System (SSS)

Application :
Fill and drain operations with sterile vessels blending Dispersion Homogenisation Suspension
Operative range :
Vaccines APIs prone to foaming APIs needing constant stirring

In many cases, pharmaceutical end products need to be stirred continuously prior to entering the final filling stage. Given this requirement, the main challenges are :
  • Steady stirring until 'the last drop'
  • Minimized deadleg for complete product harvest
  • Prevention of vortex-caused incorporation of gaz bubbles
  • Prevention of foam formation caused by too vigorous stirring
Rotation controllers RC-051 used with Rütten stirrers make all this possible. RC-051 is an intelligent floor mounted weighing frame. Vessels with stirrer, on a trolley, are driven into the frame. During operation, its load cells register the exact weight and adapt stirrer rotation speed correspondingly, during fill and drain operations. Five programmable speed ramp types are available, allowing either discreet or continuous adapation of the stirring speed. An unlimited number of recipes can be used. By reducing the stirrer speed during draining, stirring continues, allowing more of the media to be used for fill and finish.

Units RPM controller RC-051
Dimensions weighing frame L × W mm (in) 805 × 1067 (32 × 42)
Weight weighing frame kg (lbs) 24 (53)
Weighing range kg (lbs) 0 to 300 (0 to 660)
Accuracy kg (lbs) < 0.1 < 0.2
Material AISI 304 (DIN 1.4301)
Working environment °C, rel. hum. 0 to 40, 20-70 %
Protection class IP 55
Power supply   100-240 VAC / 50-60 Hz


  • check_circleFoam prevention
  • check_circleEvened API concentrations
  • check_circleMinimized product loss
  • check_circleNonstop mixing during fill and drain
  • check_circleStable specific mixing energy input
  • check_circleLess product deposits or sediments


RPM controllers RC-051 match with following components :