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Dual Shaft Single Rotary Sample Transporter

Product code: RMD40-XXXX-YYYY

The RMD40 is an all metal sealed,linear-rotary feedthrough with independent rotation of the inner shaft. It's main purpose is to transport samples between UHV-chambers. The independent rotary motion can be used to operate a sample locking mechanism or to rotate the sample carrier platform. The square shaft makes this feedthrough especially sturdy. A set of rare earth magnets on the air- and vacuumside provides the necessary force to ensure a rigid coupling from the handle to the shaft. All ball bearings are Dicronite (W-disulfide) dry lube coated. On request, the RMD can be built with SiC ceramic hybrid ball bearings.

Pincer grips fitted to the RMD40 are oriented vertically. For horizontal orientation of the pincer, see RMD40(H).

Order code standard length
  • 300mm travel: RMD40-0300-0050
  • 500mm travel: RMD40-0500-0050
  • 750mm travel: RMD40-0750-0050
  • 1000mm travel: RMD40-1000-0050

Order code customized version:

XXXX: linear travel in millimeters
YYYY: retracted length, flange face to end of shaft in millimeters (min. 45mm)

other dimensions on request

Options and accessories:


Specifications: Dual Shaft Single Rotary Sample Transporter

linear travel X >= 50mm AND <= 1250mm; standard 0mm
retracted length Y >= 45mm AND <= 200mm; standard 50mm

  • linear travel: customised
  • retracted shaft length: customised (min. 45mm)
  • linear force: ~70N
  • torque: ~5Nm
  • bakeout temperature: 150deg C max.
  • He leak rate: <1*10E-10mbar*l/s
  • pressure range 1E-11mbar to 1000mbar
  • fully UHV compatible materials
  • optionally mounted pincer grips are oriented vertically

Download drawing
Download 3D-model (Step)
Download deflection data sheet
Download manual


The following is a list of compatible options for RMD40 Dual Shaft Single Rotary Sample Transporter.

List price:

1'390.00 CHF

1'276.17 EUR*
1'401.07 USD*

Port Aligner DN40CF, both flanges tapped M6

Product code: PA40EC

Ultra compact port aligner DN40CF (2.75" OD), L=53mm +4mm/-11.3mm, free bore 38mm.
REV: 15.01.2014 UM

List price:

1'450.00 CHF

1'331.25 EUR*
1'461.55 USD*

Hexapod Port Aligner DN40CF for angular and lateral displacement

Product code: PA40HEX

Hexapod Port aligner DN40CF (2.75" OD), L=90 +/-5mm, free inner diameter 38mm (if centered). Hexapod port aligners are especially sturdy and allow for adjustment of lateral as well as angular displacement.
REV 15.01.2014 UM

List price:

562.00 CHF

515.98 EUR*
566.48 USD*

Tube support with pivot mounted shafts OD 10mm

Product code: TSRMB

Two 10mm OD bars, support and protect the sample transporter.

List price:

1'025.00 CHF

941.06 EUR*
1'033.16 USD*

Tube support with pivot mounted shafts OD 16mm

Product code: TSRMBS

Two 16mm OD shafts support and protect the sample transporter.


List price:

1'610.00 CHF

1'478.15 EUR*
1'622.82 USD*

Extension shaft for remote manipulation

Product code: TSRMKG

Manipulation extension for sample transporters. Enables the user to stand close to the system regardless of shaft extension/retraction.

List price:

on request

Belt Drive with Hand Wheels (Linear & Rotary) for Sample Transporters

Product code: TSRMBD

Belt drive with one hand wheel for linear and a small (precise) hand wheel for rotary motion. For easy handling of vertically mounted sample transporters RM40, RMD40 and GMD40.

List price:

5'470.00 CHF

5'022.03 EUR*
5'513.56 USD*

Motorized linear drive for RM and GMD sample transporters

Product code: DRVRMOTL

1-axis motorized precision drive unit for RM and GMD sample transporters for automatic and reproducible extension of the shaft. Rotary motion is done manually.

List price:

8'340.00 CHF

7'657.00 EUR*
8'406.41 USD*

Motorized linear and rotary drive for RM and GMD sample transporters

Product code: DRVRMOTLR

2-axis motorized precision drive unit for RM and GMD sample transporters for automatic and reproducible extension and rotation of the shaft.

List price:

425.00 CHF

390.19 EUR*
428.38 USD*

Guide Rail for RM and GMD Sample Transporters

Product code: TSRM

Guide Rail with OD 8mm for RM Sample Transporters

List price:

215.00 CHF

197.39 EUR*
216.71 USD*

Upgrade to 200°C Bakeable Version of Dual Shaft (Single Rotary) Sample Transporters


Upgrade from 150°C to 200°C bakeout temperature for GMD single and RMD dual shaft (single rotary) sample transporters.

List price:

1'950.00 CHF

1'790.30 EUR*
1'965.53 USD*

Hard Grip Straight Pincer RM for SHOM Sample Plate

Product code: PGRMS(OMH)

Intended to pick up SHOM sample plates and move them with a transfer rod over larger distances typically from one UHV-chamber to another. For linear transfer motion and for all sample transporters, we recommend the PGRMS(OMH)-version: The sample plates are held with a clearance of +/-2° horizontal and vertical

REV: 07.09.16 JB

List price:

3'850.00 CHF

3'534.70 EUR*
3'880.66 USD*

Straight Pincer for Wafer Handling

Product code: PGRMWAF

Pincer for Wafer handling

List price:

695.00 CHF

638.08 EUR*
700.53 USD*

Upgrade for Sample Transporters to CF50

Product code: UPGRADETU50

Tube assembly upgrade for Sample Transporters to DN50CF

Ferrovac Gmbh | Thurgauerstrasse 72 | CH-8050 Zürich | | | TEL +41 44 273 16 38 | FAX +41 44 273 16 30
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