A stepper motor operated at its natural frequency may experience excessive settling time, vibration and acoustic noise. A Ferrofluidic damper relies on Ferrofluid to absorb the motion energy by a shearing effect which produces a torque that opposes the unwanted oscillatory motion. A Ferrofluidic damper is hermetically sealed and has a non-magnetic housing which attaches to the motor shaft. Inside the housing is an inertial mass which levitates on Ferrofluidics' ferrofluid, thus eliminating the need for bearings to support the mass.

A Ferrofluidics damper offers reliable damping and accurate performance with no losses in speed or accuracy, and no reduction in torque. Other performance benefits include:

• increased positional accuracy
• reduced settling time
• reduced torsional oscillations

A Ferrofluidic inertia damper is easily attached to the motor shaft and has no maintenance requirements. It can be custom tuned to your system for optimum results. Typical applications include X-Y-Z Plotters, Printers, Optical Scanners, Robotics and Milling Machines.

A range of sizes and damping coefficients is available.