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Z269743

Sigma-Aldrich

Aldrich® cold plate stirrer

AC/DC input 115 V AC, Digital cold plate stirrer

Synonym(s):

Cold plate stirrer

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About This Item

UNSPSC Code:
41103800
NACRES:
NB.22
Pricing and availability is not currently available.

material

aluminum plate

packaging

pack of 1 ea

availability

not available in EU

plate size × W × L

× 5 mm × 5 in., no of position=10

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General description

These portable, low-temperature control devices utilize efficient, solid-state, thermoelectric modules to control temperatures from +25 to -20 °C. Unique, dual heat exchanger utilizes either fan forced air or tap water for cooling. Connects to water source using 1/4 in. I.D. tubing. Stirring models have a built-in, adjustable-speed, magnetic stirrer to keep solutions at equilibrium. Useful for reaction kinetics, recrystallizations, cold traps, freezing point determinations, controlling exothermic reactions, condenser for distillations, freezing biological and blood specimens, cold bath or storage chambers. Not CE compliant.
Specifications:
  • Rapid cooling to -10 °C (forced air) or -20 °C (tap water), 130 BTU/h initial rate
  • Cooling to -40 °C possible by circulating coolant
  • Equilibrium reached in 2 to 3 min
  • 3 in. diam. aluminum top plate handles solutions up to 200 mL
  • 18 gauge aluminum cabinet, 7 W × 5 D × 5 in. H
  • Wt = 8 lb
Analog models have adjustable power supply to control cooling.
Digital models have dial-in temperature control with digital setpoint in 1 °C increments, automatic thermistor temperature control (order thermistor sensors separately below), and digital meter readout to 0.1 °C with 0.1 °C accuracy.

Legal Information

Aldrich is a registered trademark of Sigma-Aldrich Co. LLC

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Questions

  1. What is the mixing RPM range of the cold plate stirrer?

    1 answer
    1. The stirring speed for this instrument is variable continuously from 0 to 300 RPM using a 2" stir bar in an aqueous solution. It can vary from that figure depending on the viscosity of the solution and the size of the stir bar. The maximum RPM under a no-load condition is 500 RPM.

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