Heidenhain (GB) Ltd

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DR. JOHANNES HEIDENHAIN GmbH develops and manufactures linear and angle encoders, rotary encoders, digital readouts, and numerical controls for demanding positioning tasks. HEIDENHAIN products are used primarily in high-precision machine tools as well as in plants for the production and processing of electronic components.

Sealed linear encoders from HEIDENHAIN are protected from dust, chips and splash fluids and are ideal for operation on machine tools. An aluminum housing and elastic sealing lips protect the scale, scanning carriage and guideway from chips, swarf, dirt and splashwater The scanning carriage travels in a low-friction guide within the scale unit. It is connected to the external mounting block by a coupling that compensates unavoidable misalignment between the scale and the machine guideways.
 

Length Gauges

Length gauges from HEIDENHAIN offer high accuracy over long measuring ranges. These sturdily made gauges are available in application-oriented versions.


They have a wide range of applications in production metrology, in multipoint inspection stations, measuring equipment monitoring, and as position measuring devices.  

Length Gauges

Angle Measurement

For angle measurement, HEIDENHAIN provides a large selection of encoders that covers the entire range of accuracy requirements.

The term angle encoder is typically used to describe encoders that have an accuracy of better than ± 5" and a line count above 10000. These devices are used in applications such as NC rotary tables, swivel heads of machine tools, dividing apparatuses, high-precision angle measuing tables, precision devices in angular metrology, antennas and telescopes. 

Angle Measurement

Angle Encoders

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

There are three different mechanical design principles: 

  • Angle encoders with integral bearing, hollow shaft and integrated stator coupling
  • Angle encoders with integral bearing, for separate shaft coupling 
  • Angle encoders without integral bearing 
Angle Encoders

Magnetic Modular Encoders

The robust ERM magnetic modular encoders are especially suited for use in production machines. Their large possible inside diameters as well as the small dimensions and compact design of the scanning head predestine them for:

  • The C axis of lathes
  • Spindle orientation on milling machines
  • Auxiliary axes
  • Integration in gear stages
Magnetic Modular Encoders

Controlling Machine Tools

The TNC Controls for Milling Machines and Machining Centers

  • Form a complete product line with their various features
  • Control machines with up to 13 axes
  • Their plain-language programming capability is suited for the workshop floor
  • Can also be programmed externally
  • Are also suited for automated production
  • Are the correct choice for everything from simple milling procedures to high-speed
Controlling Machine Tools

Measured Value Acquisition and Display

Position Display Units 

Position display units serve to visualize the values measured with linear encoders, length gauges, rotary encoders or angle encoders. Areas of application include:  

  • Measuring and inspection equipment
  • Dividing apparatuses
  • Monitoring of measuring equipment
  • Manual machine tools
  • Measuring machines  
Measured Value Acquisition and Display

Position Display Units

Position displays from HEIDENHAIN are designed to be highly user-friendly.

Typical characteristics are:  

  • Highly readable, alphanumeric display
  • Simple, logically arranged keypad
  • Ergonomically designed push-button keys
  • Splash-protected front panel
  • Sturdy die-cast housing
     
Position Display Units

Exposed Linear Encoders

Exposed linear encoders are designed for use on machines and installations that require an especially 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
Exposed Linear Encoders

Rotary Encoders

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. Additional 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 allow 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 
Rotary Encoders

Touch Probes

3-D touch probes from HEIDENHAIN were conceived for use on machine tools, in particular for milling machines and machining centers. 3-D touch probes can help to save costs: NC controls can automatically run setup, measuring and verification tasks and most controls can also run them under program control.  

Please visit our website for more specific product information.

Touch Probes

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