Sign in

Dual Shaft Rotatable Sample Transporter

Product code: RMDG40-XXXX-YYYY

The RMDG40 is an all metal sealed,linear-rotary feedthrough with independent rotation of the inner as well as the outer shaft. It's main purpose is to transport samples between UHV-chambers. The independent rotary motion of each shaft enhances operation of sample locking mechanisms and sample carrier platforms by being able to drive and also rotate them.
Two sets of rare earth magnets on the air- and vacuumside provide the necessary force to ensure a rigid coupling from the handle to the shaft. All ball bearings are DicroniteTM (W-disulfide) dry lube coated. On request, the RMDG can be built with SiC ceramic hybrid ball bearings.

Order code standard length
  • 300mm travel: RMDG40-0300-0050
  • 500mm travel: RMDG40-0500-0050
  • 750mm travel: RMDG40-0750-0050
  • 1000mm travel: RMDG40-1000-0050

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 Rotatable Sample Transporter

linear travel X >= 0mm 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.
  • pressure range 1E-11mbar to 1000mbar
  • dicroniteTM (W-disulfide) dry lube coated ball bearings
  • fully UHV compatible materials

Download drawing
Download deflection data sheet

Download Manual


The following is a list of compatible options for RMDG40 Dual Shaft Rotatable Sample Transporter.

List price:

1'950.00 CHF

1'789.15 EUR*
1'969.90 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

3'532.43 EUR*
3'889.28 USD*

Straight Pincer for Wafer Handling

Product code: PGRMWAF

Pincer for Wafer handling

List price:

1'450.00 CHF

1'330.40 EUR*
1'464.79 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:

1'390.00 CHF

1'275.35 EUR*
1'404.18 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:

562.00 CHF

515.64 EUR*
567.73 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

940.45 EUR*
1'035.46 USD*

Tube support with pivot mounted shafts OD 16mm

Product code: TSRMBS

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


List price:

5'470.00 CHF

5'018.81 EUR*
5'525.81 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:

9'985.00 CHF

9'161.39 EUR*
10'086.88 USD*

Motorized linear and double rotary drive for RMDG / RMJG sample transporters

Product code: DRVRMOTLRR

2-axis motorized precision drive unit for RMDG or RMJG sample transporters. For automatic and reproducible extension and independent rotation of it's two shafts.

List price:

425.00 CHF

389.94 EUR*
429.34 USD*

Guide Rail for RM and GMD Sample Transporters

Product code: TSRM

Guide Rail with OD 8mm for RM Sample Transporters

List price:

450.00 CHF

412.88 EUR*
454.59 USD*

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


Upgrade from 150°C to 200°C bakeout temperature for RMDG40 & RMDG40(RS) dual shaft rotary sample transporters with independant rotary motion of the inner as well as the outer shaft.

List price:

695.00 CHF

637.67 EUR*
702.09 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
© Ferrovac GmbH 2019 | © vogy GmbH 2019