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MSR evo Electrode Rotator
Part Number
AFMSR24B1
Electrode Rotator evoLUTION
The MSR evo Electrode Rotator is the newest version of the classic, most-popular, most-cited electrode rotator in the world, the MSR. Check out the new features!
Introducing the newest electrode rotator from the company who made commercial electrodes rotators first available on the market, the MSR evo. It is the evolution of the world’s most popular and most cited electrode rotator in the literature, the MSR Rotator. The MSR evo is highly flexible, enabling techniques such as Rotating Disk (RDE), Rotating Ring-Disk (RRDE), and Rotating Cylinder (RCE) electrochemical experiments. It features an updated control unit with pause/stop/start button, bright LED display, smaller form factor, and advanced interfacing capabilities when paired with a Pine Research electrochemical workstation, such as the WaveDriver 200 Electrochemical Workstation. Shafts and electrodes are sold separately, and Pine Research offers more rotating electrodes than anybody else.
Related Product Bundles
This product is available in related bundles. View related bundles in the tab below.
Product Parts List
This product consists of separately available parts. View the parts list in the tab below.
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Specify Power Cord
This product requires a power cord to connect to AC mains. Please specify the plug style used in your region when you order this product. We stock a variety of power cords.
Shafts sold separately.
Given the wide range of electrodes we offer, where each series requires one of several rotating shafts, shafts must be purchased separately for the MSR and MSR evo rotators. Consult the RDE, RRDE, and/or RCE specifications to learn which shaft is compatible.
MSR evo Electrode Rotator
The MSR evo Electrode Rotator is an evoLUTION of the world's most popular rotator, the Modulated Speed Rotator (MSR). This flexible electrochemical instrument may be used with Rotating Disk Electrodes (RDE), Rotating Ring-Disk Electrodes (RRDE), and Rotating Cylinder Electrodes (RCE). The MSR evo Rotator is compatible with most international power configuration standards. The MSR evo Rotator shares many of the same technical specifications as the MSR, with a few exciting updates:
- Rotation range increase: 0 to 11,000 RPM
- Improved and revised control unit electronics, for improved stability.
- Updated control unit is smaller, modern, and better laid out.
- Added Pause/Run button to front panel (as found on the WaveVortex 10 Electrode Rotator).
- Bright LED display on front panel replaced old LCD.
- Continues to use the same RDE, RRDE, and RCE electrodes as the original MSR.
- New USB port on control unit allows for future integrations and features.
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 output signal from an electrochemical workstation or third-party waveform generator. The rotation rate shines brightly on the new blue LED display on the control unit. The rotation rate is adjustable over a range from 50 to 10,800 RPM and is accurate to within 1% of the reading on the display. Rotation rate may also be monitored via an output signal proportional to the rotation rate, accesible on the control unit input/output connector.
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.
The MSR evo Electrode Rotator is available as part of a product bundle. A product bundle is a combination of products that are compatible and often sold together for convenience and confidence. Below is a list of product bundles that contain MSR evo Electrode Rotator.
Bundled with RDE Electrode and Electrochemical Cell
Bundled with RRDE electrode and Electrochemical Cell
Bundled with WaveDriver 200 Electrochemical Workstation
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Bundled with WaveDriver 100 Electrochemical Workstation
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Bundled with WaveDriver 40 Electrochemical Workstation
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Bundled with WaveNow Wireless Electrochemical Workstation
MSR evo Electrode Rotator is a single product with individual parts that may be purchased separately. The data below aggregates the specifications for each part in this product.
MSR evo Electrode Rotator
Electrode Rotator
Motor
Control method
Closed loop servo-system; temperature compensated tachometer mounted on motor shaft
Maximum continuous torque
30.4 mN·m
Motor power
20 W
Motor protection
2 Amp thermal-type circuit breaker current limited power supplies
Motor type
Permanent Magnet
Modulation boundaries
Electrical
Electrode connections
Disk electrode: two red banana jacks on motor unit, Ring electrode: two blue banana jacks on motor unit
Rotator AC power input
100 - 240 VAC, ±10%, 50/60 Hz, 2 A
Power switch location
Front of control unit
Back panel controls
8-pin I/O connector, Circuit breaker reset button
Front panel controls
External/manual control switch, Power switch, Run/pause button
Rotator I/O Connections
Chassis ground, External stop signal, External voltage input (external rate control), TTL logic (active high or active low), Voltage output
Grounding
Rotator chassis terminal
Chassis connection on back panel 8-pin connector
Rotator earth ground
No direct connection available
Rotation Rate
Rate limits
0 to 11,000 RPM
Rate accuracy
0 to 4,000 RPM: accurate to within ±2 RPM; 4,000 RPM and above: accurate to within ±1 count and ±0.1% of display reading
External rate control
Optional rate control via input signal on external I/O port; available control ratios: 1, 2, or 4 RPM/mV, jumper selectable
Rate display
4 ½ digit display indicates rotation rate (RPM)
Rate output
Voltage output accessible from back panel 8-pin connector
Start/stop (front panel)
Push-button toggle on front panel with LED indicators for “pause” and “run”
Start/stop (external)
Available TTL logic: active high or active low; jumper selectable, Front panel LED indicates when external motor stop is active, Optional digital motor stop input signal on external I/O port
Physical
Control unit dimensions
27 × 25 × 11 cm (10.8 × 9.8 × 4.3 in)
Enclosure dimensions
48 × 40 × 54 cm (18.8 × 15.5 × 21 in)
Enclosure base and sides materials
White polypropylene (PP)
Enclosure window material
Clear polycarbonate (PC)
Center post/support rod material
303 stainless steel
Operating temperature
10 °C - 40 °C (50 °F - 104 °F)
Rotator shipping weight
27 kg (60 lb)
Safety & Environmental
Rotator RoHS compliant
Yes
Complete MSR Series Rotator Brush Assembly
Brush Replacements
Brush housing color
Blue, Green, Red, Yellow
Electrode Shafts
Shaft rotator compatibility
MSR Spring-Loaded Brush Assembly
Electrode Shafts
Shaft rotator compatibility
Power Cords
Rotation Rate Control Interface Cable, for WaveVortex 10 and MSR evo Rotators, WaveDriver Series and WaveNow XV
Cables
Cable type
Interface, Signal
Cable terminal A type
Plug, Terminal Block, Green, 3-pin
Cable terminal B type
Plug, Terminal Block, Green, 8-pin
Cable length
3 ft
Cable color
Gray
Cable instrument compatibility
MSR evo electrode rotator, WaveDriver series electrochemical workstation, WaveNow XV electrochemical workstation, WaveVortex 10 electrode rotator
Rotation Rate Control Interface Cable, for WaveVortex 10 and MSR evo Rotators, WaveNow/WavePico Wireless
Cables
Cable type
Interface, Signal
Cable terminal A type
Plug, Terminal Block, Green, 4-pin
Cable terminal B type
Plug, Terminal Block, Green, 8-pin
Cable length
3 ft
Cable color
Gray
Cable instrument compatibility
MSR evo electrode rotator, WaveNow/WavePico Wireless electrochemical workstation, WaveVortex 10 electrode rotator
MSR evo Electrode Rotator is sold as a simple product; however, customers may wish to order replacement or additional components of this product. We call these "parts" of the product. Should you want more details on individual parts of this product or wish to order an additional or replacement part, refer to the list of parts below with links to their product page.
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Product Name
Part #
Quantity
Price
Actions
Complete MSR Series Rotator Brush Assembly
COMPLETE-MSR-BRUSH
4
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MSR Spring-Loaded Brush Assembly
ACAR063RM
4
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MSR Spring-Loaded Brush (low humidity)
ACAR063RMLHM
4
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MSR Lower Bearing Assembly
ACMR3301X
1
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Power Cords
POWER-CORD
1
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Rotation Rate Control Interface Cable, for WaveVortex 10 and MSR evo Rotators, WaveDriver Series and WaveNow XV
AKCABLE7-03
1
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Rotation Rate Control Interface Cable, for WaveVortex 10 and MSR evo Rotators, WaveNow/WavePico Wireless
AKCABLE903
1
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MSR evo Rotation Rate Calibration Kit
AKMSRCAL2
1
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- Lim, T.; Ooka, H.; Yu, Y.; Murakami, T.; Wada, S.; Nakamura, R. Hydration entropy of cations regulates chloride ion diffusion during electrochemical chlorine evolution. Nat. Chem. 2025.
- Zhang, Y.; Ding, X.; Zhang, X.; Mao, Z.; Xu, X.; Kang, F.; Tan, Q.; Li, Y.; Liu, F. Graphene-Driven Galvanic Corrosion Enables Spatiotemporal Cu2+ Release in Nanofluid-Infused SLIPS for Dynamic Antifouling Coatings. ACS Appl. Mater. Interfaces 2025.
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