New in bag, Newport DM-13 Coarse Differential Micrometer for use with manual positioning linear translation stages.


  • 13.0 mm Travel Range
  • 10 µm Graduations
  • 22 N Axial Load Capacity
  • 0.07 µm Sensitivity

Includes micrometer wrench for mounting/dismounting nut.

Manufacturer’s Description:

When manual resolution of much less than one micrometer is needed, a differential screw is recommended. A differential micrometer uses a spindle with two opposing screw threads of slightly differing pitches. The mechanism allows extremely small adjustments using commonly available screws.

The DM-13 combines 13mm of coarse travel range with 0.2 mm fine adjustability in a single micrometer. Use the knob at the back for coarse positioning like a classical micrometer drive. When done, use the other knob for fine tuning your position with 0.07 µm adjustment sensitivity. The motion of the DM-13 is exceptionally smooth and crisp, without tightness or difficult turning. DM-13 provides excellent linearity and absolute accuracy better than 1%, and its unique design exhibits no harmonic motion errors typical of conventional differential screws.



Actuator Type: Differential Micrometer

Travel: 0.28-0.59 in. (13.0 mm)

Sensitivity: 0.1 Âm

Load Capacity: 0 lb

Drive Type: Knob

Coarse Fine

Travel (mm) 13 0.2

Graduations (µm) 10 0.5

Sensitivity (µm) 1 0.07

Backlash* (µm) 1 <0.5

Accuracy: Better than 1 %

Warranty 90-Day Warranty

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Newport DM-13 Differential Micrometer Head (New)

  • Item ID: 254429
  • Brand: Newport
  • Model: DM-13
  • Availability: In Stock
  • Condition: Unused Surplus
  • $399.99
  • $379.99

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Tags: Unused Surplus