RDE710 Rotating Electrode

The RDE710 Rotating Electrode is a research-grade rotator and features the ability to use rotating ring-disk, disk and, cylinder electrodes. It can be used as the working electrode in any electrochemical cell with any Gamry potentiostat.

Product Details


The RDE710 Rotating Electrode is a research-grade rotator and features the ability to use rotating ring-disk, disk and, cylinder electrodes. The rotation rate is adjustable from 50 – 10,000 rpm (revolutions per minute). The Controller has a Liquid Crystal Display (LCD) which indicates the rotation rate and is controlled by a rotation rate knob. Alternatively, the rotation rate may be controlled by your Gamry Interface or Reference family instrument. The electrode assembly of the rotator has a versatile design that allows for the use of diverse electrode types. Different shaft and electrode tips can be selected depending on your desired use. Different shafts are used for disk and cylinder or ring–disk experiments.


  • Corrosion
  • Catalyst Development
  • Fuel Cell Research
  • Controlling Mass Transport of Reactants to Electrode Surface

Rotating ring-disk electrodes are used where products generated at the disk electrode are monitored at the ring electrode. A bipotentiostat is required for these experiments and Gamry can supply an instrument using two standard Gamry Potentiostats collecting data synchronously when connected to the same computer. A number of ring-disk electrodes are available including platinum-platinum, gold-gold and glassy carbon-glassy carbon.

Rotating disk experiments are performed where defined mass transport to the sample electrode is desired. An example of this type of experiment would be catalyst evaluation.

Rotating cylinder experiments are important in the oil industry to simulate the corrosion environment inside a pipeline, thus avoiding the need to assemble expensive flow loop setups. The rotator is an ideal tool because flow conditions at the rotating cylinder are generally turbulent even at low rotation rates. Cylinders can be made from a variety of different metals to evaluate their performance including 1018 carbon steel, 316 stainless steel and 430 stainless steel. Users can machine cylinder samples using their actual material.

The electrodes for the rotator are sold separately and include a wide selection of standard materials such as gold, platinum, glassy carbon, carbon steel, stainless steel, etc. Custom materials are available on request.



Power 100 - 240 VAC, +/-10%; 50/60 Hz; 2A


Shipping Weight 60 pounds (25 kg)
Shipping Dimensions 24.0 x 24.0 x 24.0 in (61 x 61 x 61 cm)

(L x W x H)

Control Unit  11.4 x 10.1 x 5.75 in (29 x 26 x 15 cm)
Rotator Enclosure: 18.8 x 15.5 x 21.0 in (48 x 40 x 54 cm)


Motor Power 15 W
Supply Voltage +30 VDC, -24 VDC
Motor Type Permanent Magnet
Motor Protection 2 Amp thermal-type circuit breaker current limited power supplies
Max. Continuous Torque 28.3 millinewton-meters
Rate Control closed loop servo-system temperature compensated tachometer mounted on motor shaft
Rate Display 4 ½ digit display indicates rotation rate (RPM)
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


Front Panel 10-turn rotation rate control knob button to reset circuit breaker
Rear Panel Power Switch
Rotation Rate Input Allows optional external signal to control rotation rate (banana jack) selectable control ratio:
1 RPM/mV (default)
2 RPM/mV
4 RPM/mV
Rotation Rate Output Allows optional external monitoring of rotation rate (banana jack) output signal ratio: 1 mV/RPM (+/-1%)
Rotator Motor Stop Rear panel input optional digital motor stop signal (banana jack)
Earth Ground Metal binding post (banana jack) connects to ground lead of power cord and to control unit chassis
Common Jacks DC common (3 black banana jacks), isolated from Earth ground
Slew Rate of Motor Approximately 300,000 RPM/sec maximum (no load)
Bandwidth >50 Hz, -1 dB (at 1000 RPM peak to peak modulation on a 2000 RPM base rate)

Product Images

RDE710 Rotating Electrode Part #992-00071