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Dual Shaft Sample Transporter with Motorized Linear and Double Rotary Drive and PGRMS


The RMDG40-DRVRMOTLRR-PGRMS(OMH) is a linear-rotary sample transporter with independent rotation of the inner as well as the outer shaft, equipped with a stepper motor-driven linear and double rotary actuator as well as a hard Grip Straight Pincer for SHOM Sample Plates.

A high precision motorized spindle drive is coupled to the outer magnet of the RMDG40-PGRMS(OMH) and controls linear motion. Two further stepper motors mounted onto the sledge of the linear unit control the independent rotation of the inner and outer shaft respectively. This separate rotation of each shaft enhances operation of the PGRMS(OMH) pincer by being able to open/close and also rotate it. The sturdy linear unit ensures unchanging alignment of all components and consistent positioning.

Please note that for bakeout the drive must be removed.


Order code standard length

  • 300mm travel: RMDG40-0300-0095-DRVRMOTLRR-PGRMS(OMH)
  • 500mm travel: RMDG40-0500-0095-DRVRMOTLRR-PGRMS(OMH)
  • 750mm travel: RMDG40-0750-0095-DRVRMOTLRR-PGRMS(OMH)
  • 1000mm travel: RMDG40-1000-0095-DRVRMOTLRR-PGRMS(OMH)

Order code customized version:


XXXX: linear travel in millimeters
YYYY: retracted length, flange face to end of pincer grip in millimeters (min. 90mm)

Specifications: Dual Shaft Sample Transporter with Motorized Linear and Double Rotary Drive and PGRMS

Dual Shaft Rotatable Sample Transporter with PGRMS:

  • linear travel: 300mm, 500mm, 750mm, 1000mm or customized
  • linear force: ~70N
  • torque: ~5Nm
  • bakeout temperature: 200 °C max.
  • He leak rate: <1*10E-10mbar*l/s
  • pressure range 1E-11mbar to 1000mbar
  • fully UHV compatible materials
  • degree of freedom sample plate: +/-2° horizontal and vertical



Linear Unit:

  • accuracy: ± 0,1mm / 300mm
  • toothed belt transmission for linear drive : 1:1
  • linear unit has one adjustable (front end) and one fixed end switch (rear end, 0mm)

Rotation Unit (per rotation):

  • max. rot speed:60°/s
  • min step size: (1.8°/64)/100 ~ 0.0003°
  • worm gear transmission: 1:100
  • rotation unit have two adjustable endswitches (0°-360°)

Downloads: drawing (pdf) | manuals

3D-model available on request

Stepper Motor Linear Drive:

  • Voltage: 8.8VDC
  • Amps/Phase: 1.0
  • Resistance/Phase: 8.8+/-10% Ohms
  • Holding torque: 1.32 Nm
  • Step angle: 1.8°+/-5%
  • controller not included

Download Datasheet

Stepper Motor Rotary Drives:

  • Voltage: 4.37 VDC
  • Amps/Phase: 0.95
  • Resistance/Phase: 4.6+/-15% Ohms
  • Holding torque: 0.09 Nm (without worm gear unit)
  • Step angle: 1.8°+/-5%
  • controller not included

Download Datasheet


  • linear drive spindle pitch: 3mm

Possibly an end-user certificate (EUC) is required from purchaser.
Export licence from the State Secretariat for Economic Affairs (SECO) or Swiss Federal Office of Energy (SFOE) may be required

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