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Motorized Linear Drive for MD40 Feedthrough

Product code: DRVMDMOTL-XXXX

The DRVMDMOTL is a stepper motor-driven one axis linear actuator. It's high precision motorized spindle drive is coupled to the outer magnet and controls linear motion. With a 2mm pitched spindle, a resolution of 0.01mm is possible. Alternatively, a 1mm pitched spindle provides even higher resolution. The linear axis is driven by a Nanotec ST2018L0804 2-phase stepper motor.
The sturdy linear unit ensures unchanging alignment of all components and consistent positioning.

MD40 linear drives can be equipped with the DRVMDMOTL option and configured with either continous rotation of the shaft or as a linear only drive.

Please note that for bakeout the drive must be removed.



  • XXXX = Length of the hole drive (Linear travel of MD40 + 226mm). If you have a MD40-0200-0030, you need a DRVMDMOTL-0426 (200mm+226mm)


Specifications: Motorized Linear Drive for MD40 Feedthrough

outer length X >= 0mm AND <= 626mm; standard 0mm

  • linear drive unit DRVMD: 2mm pitched spindle drive (1mm on request)
  • linear travel: customized
  • max. travel speed: 25mm/s
  • theoretical linear resolution: 0.01mm (with 2mm pitched spindle)
  • mounting flange DN40CF (2,75" O.D.)
  • linear force: 30N
  • torque: 0.5Nm
  • manipulator bakeout temperature: 200 °C max. (without stepper motor, according to the manual)
  • pressure range 1E-11mbar to 1000mbar
  • fully UHV compatible materials

Downloads: manuals | drawing (pdf)
3D-model available on request

Stepper Motor Linear Drive:

  • Voltage/Phase: 3.22 VDC
  • Amps/Phase: 1.4
  • Resistance/Phase: 2.3+/-10% Ohms
  • Holding torque: 0.117 Nm
  • Step angle: 1.8°+/-5%
  • controller not included

Datasheet (pdf)

Pictured right: MD40-0100-0030-DRVMDMOTL
MD40 linear/rotary feedthrough DN40CF with DRMDMOTL motorized linear drive

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