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Modulated Speed Rotator (MSR)

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The Pine Research MSR Rotator is the most popular electrode rotator in the world.  This flexible design may be used with Rotating Disk Electrodes (RDE), Rotating Ring-Disk Electrodes (RRDE), and Rotating Cylinder Electrodes (RCE).  The rotator, shaft and electrodes can be purchased separately or as part of several pre-configured product bundles (view bundles).  Key features of the MSR Rotator are listed below:

  • Adjustable range from 50 to 10,000 RPM
  • Accuracy within 1% of the reading display
  • CE and ETL mark
  • Silver-carbon brush contacts: red is for the disk, blue is for the ring.
  • Hundreds of compatible RDE, RCE, and RRDE electrode designs.

To view pricing or purchasing options in your country, please register or login to your account.

# Description Price in USD
Pine Research MSR Rotator
AFMSRCE

MSR Electrode Rotator with CE and ETL Marks

power cord, shaft, and electrodes sold separately

Electrode Options

Please note that electrodes, shafts, and power cords for the MSR Rotator are sold separately.  New customers may wish to consider one of the complete product bundles listed below.

Basic MSR Rotator Bundles
[MSR-RDE-E5]

MSR Rotating Disk Electrode Bundle
features E5 series RDE tip with fixed glassy carbon disk

includes MSR Rotator, shaft, electrodes, cell, and accessories

[MSR-RDE-E5TQ]

MSR ChangeDisk Rotating Disk Electrode Bundle
features E5TQ series ChangeDisk RDE tip with interchangeable glassy carbon disk

includes MSR Rotator, shaft, electrodes, cell, and accessories

MSR Rotator/WaveNowXV Potentiostat Bundles
[WNXV-MSR-RDE-E5]

MSR Rotator Rotating Disk Electrode with WaveNowxv Bundle
features E5 series RDE tip with fixed glassy carbon disk

includes potentiostat, MSR Rotator, software, cables, electrodes, cell, and accessories

[WNXV-MSR-RDE-E5TQ]

MSR Rotator ChangeDisk Rotating Disk Electrode with WaveNowxv Bundle
features E5TQ series RDE tip with removable glassy carbon disk insert

includes WaveNowxv potentiostat, MSR Rotator, software, cables, electrodes, cell, and accessories

MSR Rotator/WaveNow Wireless Potentiostat Bundles
[WNW-MSR-RDE-E5]

MSR Rotator Rotating Disk Electrode with WaveNow Wireless Bundle
features E5 series RDE tip with fixed glassy carbon disk

includes potentiostat, MSR Rotator, software, cables, electrodes, cell, and accessories

[WNW-MSR-RDE-E5TQ]

MSR Rotator ChangeDisk Rotating Disk Electrode with WaveNow Wireless Bundle
features E5TQ series RDE tip with removable glassy carbon disk insert

includes potentiostat, MSR Rotator, software, cables, electrodes, cell, and accessories

MSR Rotator/WaveDriver 40 DC Bipotentiostat Bundles
[WD40-MSR-RDE-E5]

MSR Rotating Disk Electrode with WaveDriver 40 Bundle
features E5 series RDE tip with fixed glassy carbon disk

includes WaveDriver 40 bipotentiostat, MSR Rotator, software, cables, electrodes, cell, and accessories

[WD40-MSR-RDE-E5TQ]

MSR ChangeDisk Rotating Disk Electrode with WaveDriver 40 Bundle
features E5TQ series RDE tip with removable glassy carbon disk insert

includes WaveDriver 40 bipotentiostat, MSR Rotator, software, cables, electrodes, cell, and accessories

[WD40-MSR-RRDE-E8R4]

MSR Rotating Ring-Disk Electrode with WaveDriver 40 Bundle
features E8 series High-Efficiency RRDE tip with a fixed platinum ring and a fixed glassy carbon disk

includes WaveDriver 40 bipotentiostat, MSR Rotator, software, cables, electrodes, cell, and accessories

[WD40-MSR-RRDE-E6R1]

MSR ChangeDisk Rotating Ring-Disk Electrode with WaveDriver 40 Bundle
features E6R1PK series ChangeDisk RRDE tip with a fixed platinum ring and a removable glassy carbon disk insert

includes WaveDriver 40 bipotentiostat, MSR Rotator, software, cables, electrodes, cell, and accessories

MSR Rotator/WaveDriver 100 EIS Potentiostat Bundles
[WD100-MSR-RDE-E5]

MSR Rotator Rotating Disk Electrode with WaveDriver 100 Bundle
features E5 series RDE tip with fixed glassy carbon disk

includes WaveDriver 100 potentiostat, MSR Rotator, software, cables, electrodes, cell, and accessories

[WD100-MSR-RDE-E5TQ]

MSR Rotator ChangeDisk Rotating Disk Electrode with WaveDriver 100 Bundle
features E5TQ series RDE tip with removable glassy carbon disk insert

includes WaveDriver 100 potentiostat, MSR Rotator, software, cables, electrodes, cell, and accessories

[WD100-MSR-RCE15]

MSR Rotating Cylinder Electrode with WaveDriver 100 Bundle
features 15-mm OD RCE shaft on MSR Rotator

includes WaveDriver 100 potentiostat, MSR rotator, software, cables, electrodes, and accessories

MSR Rotator/WaveDriver 200 EIS Bipotentiostat Bundles
[WD200-MSR-RDE-E5]

MSR Rotating Disk Electrode with WaveDriver 200 Bundle
features E5 series RDE tip with fixed glassy carbon disk

includes WaveDriver 200 bipotentiostat, MSR Rotator, software, cables, electrodes, cell, and accessories

[WD200-MSR-RDE-E5TQ]

MSR Rotator ChangeDisk Rotating Disk Electrode with WaveDriver 200 Bundle
features E5TQ series RDE tip with removable glassy carbon disk insert

includes WaveDriver 200 bipotentiostat, MSR Rotator, software, cables, electrodes, cell, and accessories

[WD200-MSR-RRDE-E8R4]

MSR Rotating Ring-Disk Electrode with WaveDriver 200 Bundle
features E8 series High-Efficiency RRDE tip with a fixed platinum ring and a fixed glassy carbon disk

includes WaveDriver 200 bipotentiostat, MSR rotator, software, cables, electrodes, cell, and accessories

[WD200-MSR-RRDE-E6R1]

MSR Rotator ChangeDisk Rotating Ring-Disk Electrode with WaveDriver 200 Bundle
features E6R1PK series ChangeDisk RRDE tip with a fixed platinum ring and a removable glassy carbon disk insert

includes WaveDriver 200 bipotentiostat, MSR Rotator, software, cables, electrodes, cell, and accessories

The MSR Rotator requires a power cable.  Specify the appropriate power cord style during order.  Pine Research offers a wide variety of plug styles.

Rotator shaft and electrode tips for this rotator are sold separately.  Specific shaft required will depend on the type of electrodes being purchased.  Contact Pine Research if clarification is required.

MAXIMUM ROTATION RATE: Each electrode tip model used with the Pine Research MSR Rotator has a maximum rotation rate. Do not the exceed maximum rotation rate when working with rotating electrodes.

The Pine Research MSR Rotator is the most popular rotating electrode configuration worldwide.  This flexible electrochemical instrument may be used with Rotating Disk Electrodes (RDE), Rotating Ring-Disk Electrodes (RRDE), and Rotating Cylinder Electrodes (RCE).  The MSR Rotator bears both the CE and ETL marks and is compatible with most international power configuration standards.

The rotation rate of the electrode may be adjusted using a control knob on the front panel of the motor control unit, or alternately, the rotation rate can be controlled via an analog control signal provided by a potentiostat or by a third-party waveform generator.  The rotation rate may be viewed using the LCD display on the front panel.  The rotation rate is adjustable over a range from 50 to 10,000 RPM and is accurate to within 1% of the reading on the display.  A rotation rate may also be monitored via an output signal proportional to the rotation rate which is available on the front panel.

The rotation rate may be controlled and modulated by a sine wave, square wave, or other externally generated waveform.  The outstanding acceleration characteristics of the motor and its control circuitry allow the rotation rate to follow the control waveform with very little error.  This feature is particularly desirable for techniques such as Hydrodynamic Modulation Voltammetry (HMV) .

The rotator motor position is easily raised or lowered with respect to the cell platform, making immersion or removal of the rotating electrode tip quick and easy.  The enclosure base is made from chemically resistant polypropylene, and the large enclosure window provides a good view of rotating electrode during operation.  (A smaller base is available separately for using the rotator in a glove box or fume hood.)

Electrode connections are made to the rotating shaft using silver-carbon brushes.  There are two pairs of contacts – the red pair is for the disk, and the blue pair is for the ring.

Visit our YouTube channel for helpful instructional videos regarding the use and maintenance of this and many other Pine Research products.

All specifications are subject to change without notice.
Modulated Speed Rotator (MSR)

Rate Accuracy

100 to 200 RPM: Accurate to within ±2 counts of display reading
200 to 10,000 RPM: Accurate to within ±1% of display reading

Rate Control (external)

Optional rate control via input signal on control unit front panel
Available control ratios: 1, 2, or 4 RPM/mV, jumper selectable

Rate Output

Allows optional external monitoring of rotation rate (banana jack, control unit front panel)
Output signal ratio: 1 RPM/mV (±1%)

Maximum Continuous Torque

28.3 mN m

Motor Power

15 W

Electrode Connections

Disk electrode: red banana jack on motor unit
Ring electrode: blue banana jack on motor unit

Dimensions

Control unit: 11.4 × 10.1 × 5.75 in (29 × 26 × 15 cm)
Rotator enclosure: 18.8 × 15.5 × 21.0 in (48 × 40 × 54 cm)

Shipping Information

Shipping weight: 60 lb (27 kg)
Shipping dimensions: 24.0 × 24.0 × 24.0 in (61 × 61 × 61 cm)

Rotating Disk (RDE)

E2, E3, E4TQ, E5, E5TQ

Rotating Ring-Disk (RRDE)

E6, E7, E8

Rotating Cylinder (RCE)

ACQC, E9

Additional Specifications

click here for a complete list of specifications

Document # Title
MSR Electrode Rotator

DRU10002

MSR Electrode Rotator User Guide
click here to download (6 MB download)

DRK10057

MSR Rotator Control by Pine Research Potentiostats
click here to download (370 KB download)

DRK10051

MSR Rotator Brush Replacement Information
click here to download (217 KB download)

DRB10087

MSR Electrode Rotator Marketing Brochure (low resolution)
click here to download (951 KB download)

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Below are selected product references:

Modulated Speed Rotator (MSR) [AFMSRCE]
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