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Encoder lineari RGH41

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RGH41The open, non-contact RGH41 readhead uses Renishaw's unique flexible 40 µm RGS40-S tape scale and offers resolutions to 50 nm.

RGH41 readhead features and benefits

  • Compact and robust readhead with internal interpolation offers industry standard digital and analogue outputs
  • High speed, reliable operation with zero friction and zero wear
  • 40 µm scale pitch offers generous readhead set-up tolerances
  • Integral set-up LED simplifies set up
  • Patented filtering optics guarantee excellent signal stability in conditions unsuitable for most open, optical encoders
  • The reference mark provides a repeatable home position whilst limits offer end of axis travel indication.  

Compare the RGH41 with alternative optical linear readheads.

RGS40-S 40 µm pitch tape scale

Flexible scale on reelRGS40-S scale is manufactured from a thin flexible steel strip, which is gold plated to give high reflectivity and corrosion resistance. It is mounted using adhesive backing tape to most engineering materials, including metals, ceramics and composites.

  • Scale is supplied on a reel and can be cut to suit any axis length up to 70 m
  • RGS-S scale simplifies thermal compensation by matching the thermal behaviour of the substrates it is affixed to
  • Applicator tool enables fast and accurate scale installation
  • Lacquer coated scale is easy to clean and resistant to handling
  • 'Cut-to-measure' convenience ensures minimum waste and efficient inventory management
  • ±3 µm/m linearity enables high accuracy with simple compensation

Technical specifications

Readhead dimensions

17.0 mm x 44.0 mm x 27.0 mm (H x L x W)

Outputs (resolution)

RS422: 10 µm, 5 µm, 2 µm, 1 µm, 0.4 µm, 0.2 µm, 0.1 µm, 50 nm.

Analogue: 1 Vpp

Reference mark Magnetic actuator 
Limit switches Dual limits
Maximum speed 15 m/s 
Ride height tolerance

0.8 ±0.15 mm

Scale types RGS40-S tape scale
Vacuum compatible No

Additional resources

Accessories and external interpolation options

For further information and product options, visit the encoder product configurator.

3D models (step format)

Passi successivi

Per ulteriori informazioni o per eventuali domande sui prezzi, è possibile contattare Renishaw online oppure telefonare al più vicino ufficio Renishaw.