HEIDENHAIN's comprehensive product program offers solutions for all applications in which the highest possible accuracy, reliable reproducibility and repeatability, safe process management, high machine dynamics, simple operation and of course maximum efficiency are required. 

Our products are therefore used primarily in high-precision machine tools, in plants for the production and processing of electronic components, as well as, in automated systems and machines. In addition, we supply our products to manufacturers of elevators, medical technology and others.

Measuring Angles with Angle Encoders

HEIDENHAIN angle encoders are characterized by high accuracy values in the arc second range and better.

Examples for application: 
  • Rotary tables on machine tools
  • Swivel heads on machine tools
  • C axes on lathes
  • Gear-testing machines
  • Printing units of printing machines
  • Spectrometers
  • Telescopes 

Sealed Linear Encoders

Sealed linear encoders from HEIDENHAIN are protected from dust, chips and splash fluids and are ideal for operation on machine tools.
  • Accuracy grades as fine as ± 2 μm
  • Measuring steps as fine as 0.001 μm
  • Measuring lengths up to 30 m (to 72 m upon request)
  • Fast and simple installation
  • Large mounting tolerances
  • High acceleration loading
  • Protection against contamination

Exposed Linear Encoders

Exposed linear encoders are designed for use on machines and installations that require high accuracy of the measured value. 
Typical applications include:
  • Measuring and production equipment in the semiconductor industry
  • PCB assembly machines
  • Ultra-precision machines
  • High-accuracy machine tools
  • Measuring machines and comparators, measuring microscopes, and other precision measuring devices
  • Direct drives

Measuring Angles with Rotary Encoders

Mounting Variants
In  rotary encoders with integral bearing  and stator coupling, the graduated disk of the encoder is connected directly to the shaft to be measured. The scanning unit is guided on the shaft via ball bearings, supported by the stator coupling. During angular acceleration of the shaft, the stator coupling must absorb only that torque resulting from friction in the bearing, thereby minimizing both static and dynamic measuring error. Moreover, the coupling mounted on the stator compensates axial motion of the measured shaft. Other benefits of the stator coupling are:
  • Simple mounting
  • Short overall length 
  • High natural frequency of coupling 
  • Hollow-through shaft possible 

Rotary encoders  with integral bearing  that are conceived for separate shaft coupling are designed with a solid shaft. The recommended coupling to the measured shaft compensates radial and axial tolerances. Angle encoders for separate shaft couplings permit higher shaft speeds.

Rotary encoders  without integral bearing  operate without friction. The two components - the scanning head and the scale disk, drum, or tape - are adjusted to each other during assembly. The benefits are:  
  • Large diameter of hollow shaft  
  • For high shaft speeds 
  • No additional starting torque 
Endless Options...

HEIDENHAIN North America represents multiple company brands including: