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  • FAULHABER Stepper Motors

Stepper Motors - PRECIstep® Technology

Robust assembly, high speed range, and exceptional performance in even the harshest environments make PRECIstep® stepper motors and drive systems the perfect solution for demanding positioning applications. FAULHABER stepper motors range in diameter from 6mm to 22mm, and are available with a wide variety of modular servo components, such as encoders, zero-backlash gearheads, integrated lead screws for linear motion, and more.

FAULHABER PRECIstep® stepper motors are two phase multi-polar motors with permanent magnets. The use of rare-earth magnets provides an exceptionally high power to volume ratio. Precise, open-loop, speed control can be achieved with the application of full step, half step, or microstepping electronics.

Two Phase

The rotor consists of an injection moulded plastic support and magnets which are assembled in a 10 or 12 pole configuration depending on the motor type. The large magnet volume helps to achieve a very high torque density. The use of high power rare-earth magnets also enhances the available temperature range of the motors from extremely low temperatures up to 180 °C as a special configuration. The stator consists of two discrete phase coils which are positioned on either side of the rotor. The inner and outer stator assemblies provide the necessary radial magnetic field.

Two phase with Disc Magnet

The rotor consists of a thin magnetic disc. The low rotor inertia allows for highly dynamic acceleration. The rotor disc is precisely magnetized with 10 pole pairs which helps the motor achieve a very high angular accuracy. The stator consists of four coils, two per phase, which are located on one side of the rotor disc and provide the axial magnetic field. Special executions with additional rotating back-iron are available for exceptionally precise micro-stepping performance.

Advantages of Stepper Motors

  • Open-Loop Speed and Postioning Control
  • High Torque at Low Speeds and at Startup
  • Extremely low rotor inertia
  • High Reliability
  • High Power Density
  • Long Operational Lifetimes
  • Wide Operational Temperature Range
  • Ideally Suited for Micro-Stepping Applications
  • Maximum Speeds of 11,000 to 21,000 rpm

 

view stepper motors and datasheets now

 

 

Two Phase Stepper Motors: Product Code Details

stepper motors - two phase - product code details

 

Two Phase with Disc Magnet Stepper Motors: Product Code Details

steppers - two phase plus disc magnet - product code details

 

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