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MDE863 - Adjustable Slit

MDE863 - Adjustable Slit
MDE863 - Adjustable Slit
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  • Model: Martock MDE863

Adjustable Slit   


  • Adjustable slit
  • Micrometer adjuster
  • Very smooth backlash-free motion
  • Based on precision dovetail slide

The model MDE863 Adjustable Slit comprises a pair of knife edges mounted onto an MDE255M precision slide. One knife edge is fixed whilst the other is adjustable to give a maximum opening of 10 mm, with a sensitivity of 1 µm. The micrometer is graduated at 10 µm intervals.


Aperture height18 mm
Adjuster micrometer  0.01 mm graduations
Slit width range0 to 10 mm
Slit parallelism≤ 0.03 mm
Knife edge0.7 mm thick at end, 20° bevel
Knife edge materialAluminium alloy


Options and Accessories
Lockable version

Note: Surface mating with these micropositioners must be truly flat. Unflat surfaces or overtightened screws will cause the slide motion to be jerky and stiff due to distortion. Dovetail slides, unlike miniature ball slides, are unlikely to be permanently damaged by temporary distortion, as the load is supported on a comparatively large area.

File NameSizeLink
MDE863_125.PDF85.66 kbDownload
MDE863_125.SLDPRT1.5 MbDownload
MDE863_125.STEP3.56 MbDownload
MDE863_3D_125.PDF555.4 kbDownload
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