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Thermionics' home office is located in Hayward California. We have production facilities at Port Townsend, Washington and in several other locations in California.
1842 Sabre Street
Hayward, California 94545
Telephone: 800-962-2310 or 510-538-3304
Fax: 510-538-2889
Sales: sales@thermionics.com
Our office hours are from 8am to 5pm PST, Monday through Friday. Close

Magnetically-Coupled Rotary Feedthroughs (FRMRE)

Single Rotary Axis Feedthrough, FRMRE-275-38/MS-SCC
(shown with optional /MS-SCC motor drive)

Dual Axis Rotary Feedthrough, FRRMRE-275-75-38/MS-SCC
(model shown here with manually operated outer shaft and
optional /MS-SCC motor-driven inner shaft)

 

 

Description

The rare earth magnetic series single and dual rotary drives are designed to provide exceptional, long life performance. They are UHV compatible and are an excellent option to conventional bellows-sealed and other rotary devices. They can be adapted to PLD target clocking and continuous rotation of targets and substrates, as well as applications which require small profiles and high performance.

There are no sliding seals or magnets in vacuum and stray magnetic fields are virtually nonexistent. The in-vacuum armature is made of paramagnetic materials with stainless steel and silicon nitride bearings and is capable of repeated bakeout to 200°C (with magnets removed). Out-of-vacuum bearings are accessible for lubrication and the magnet drive is easily removable.


Magnetically-Coupled Rotary Feedthrough
FRMRE-275-38

  • 3/8" rotating probe
  • 2.75" O.D. mounting flange
  • Manual drive knob with position lock
  • 4,000,000 revolutions before internal bearing service
  • Maximum bakeout temperature: 200°C (magnetic drive removed)
  • Mechanical torque limit: 150 oz/in
  • Maximum speed: 500 rpm
  • Removable neodynium iron boron magnetic drive for bakeout

FRMRE-275-38 Single Axis Rotary Magnetic Drive

Dual Rotary Magnetically-Coupled Feedthrough
FRRMRE-275-75-38

Ideal for PLD target gearboxes

  • 3/4" and 3/8" rotating shafts
  • 2.75" O.D. mounting flange
  • One or both rotary shafts can be motorized (see options below)
  • Manual adjustment of 3/4" diameter shaft with position lock
  • 4,000,000 revolutions before internal bearing service
  • Maximum bakeout temperature: 200°C (magnetic drive removed)
  • Mechanical torque limit: 150 oz/in
  • Removable neodynium iron boron magnetic drive for bakeout

FRRMRE-275-75-38/MS-SCC (shown with optional /MS-SCC
speed control motor drive on 0.38" shaft)

 

 

Ordering Information

Magnetically Coupled Single and Dual Rotary Feedthroughs

Drive Type Model No.
Single rotary drive FRMRE-275-38
Dual rotary drive FRRMRE-275-75-38

 

Options

 

MOTORIZATION OPTIONS

 

/MS Stepping Motor Drive

Model No.: /MS

Applications: precise positioning, positioning multiple axes at one time, computer-controlled actuation

  • 200 steps per revolution
  • 50 oz-in holding torque (higher torque motors available)
  • Maximum speed 300 rpm
  • Low inertia design
  • Manual knob
  • Motor controller sold separately

 

/MY Synchronous Motor Drive

Model No.: /MY

Applications: coarse positioning, continuous rotation

  • Single speed, 72 rpm
  • 2 directions
  • 50 oz-in holding torque (higher torque motors available)
  • Low inertia design
  • Manual knob
  • Motor controller sold separately

 

TMC Stepping or YMC Synchronous Motor Controllers

For more information see the TMC Stepping or YMC Synchronous motor controllers.

FRMRE-275-38/MS-SCC
(shown with optional /MS-SCC speed control motor drive)

 

/MS-SCC Speed Control Motor Drive

Model No.: /MS-SCC

Applications: continuous rotation with variable speed, no position feedback

  • Variable speed
  • Switchable direction
  • 5–95 RPM with 50 oz-in torque
  • Options:
    Higher torque motors
    Different speed ranges
  • Includes controller

FRRMRE-275-75-38/MS/MS-SCC (shown with optional
/MS stepping motor drive and /MS-SCC speed control motor drive),
commonly used for PLD applications
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