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24h / 365days

We offer support for our customers

Mon - Fri 8:00am - 5:00pm (GMT +1)

Get in touch

Cybersteel Inc.
376-293 City Road, Suite 600
San Francisco, CA 94102

Have any questions?
+44 1234 567 890

Drop us a line

About us

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MAS controller

MAS controller

NMR Service offers a fully pneumatic controller unit to control and monitor MAS speeds. Please do not hesitate to contact us for details.

  • To set MAS speeds with ±1 Hz precision
  • Controls MAS speeds of up to 150 kHz
  • Manual and automatic start/stop
  • Frame cooling gas, insert and ejection gas (dry air or nitrogen gas)
  • 0 – 4 bar drive and bearing gas regulation
  • Requires min. 5 bar main pressure input (dry air or nitrogen gas)
  • Maximum 8 bar main pressure input (dry air or nitrogen gas)
  • Please note, the stability of the MAS speed might be influenced by the pressure stability of the input gas.
  • Microcontroller-based TTL and analogue monitoring output
  • Requires min. 50 mV peak-to-peak input signal from probe
  • 24 set-ups for different rotor types
  • USB connection to the PC
  • Software to monitor spinning speed and stop spinning (requires Microsoft Windows 10)


Suitable for Bruker systems

  • Plugs, connectors, signal in- and outputs fully Bruker compatible
  • Trigger output to synchronise with rotation

Tested for the following Bruker MAS rotors

  • Bruker 2.5 mm: automatic start and stop
  • Bruker 3.2 mm: automatic stop
  • Bruker 4.0 mm: automatic start and stop
  • Bruker 7.0 mm: automatic start and stop
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