Stuart Scientific SS20 High Performance Overhead Stirrer, 100 to 2000rpm Speed Range, 25 Litre Capacity

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Speed range100 to 2000rpm
Maximum viscosity20,000mPas
Torque at chuck27Ncm
Chuck range1.5-13mm dia.
Hollow shaft3-8mm dia.
Dimensions (wxdxh)85x195x230mm
Net weight3.2kg
Electrical supply230V, 50 / 60Hz, 80W
  • £932.40
  • Used with volumes up to 25 liters
  • Low to medium viscosity liquids
  • Hollow shaft
  • Keyless chuck

A powerful stirrer designed for demanding laboratory applications. Suitable for stirring liquids up to medium viscosity, including oils and microbiological media, up to 25-liter capacity. Features a hollow shaft arrangement to facilitate easy adjustment of paddle height. Advanced overload protection and sophisticated, responsive speed control.

    • SKU
    • Commodity Codes
  • Stirring quantity max. per stirring position (H2O) (L)
  • Speed range (rpm)
    100 to 2000
  • Viscosity max. (mPas)
  • Manufacturer
    Stuart Equipment (part of Cole-Parmer)
  • Country of Origin
    United Kingdom


Extra strong retort stands with H-pattern base for stability and robust support rod. Both versions include bosshead. Heavy duty stand recommended for use with SS30 overhead stirrer.

DescriptionStand general purposeStand heavy duty
Base (w x d x h)400 x 350 x 25mm550 x 480 x 25mm
Rod (dia. x l)16 x 700mm25 x 850mm
Net weight7.6kg20.2kg

Paddle rods

Made from high grade stainless steel, there is a choice of five paddle heads and two lengths of 8mm diameter paddle rod. The heads screw on and off the rods, so they can be mixed and matched depending upon stirring requirements. This gives maximum versatility and value for money.
For complete paddle, order rod plus head(s).

Paddle heads


Stirrer paddles

Total width60mm94mm80mm50mm60mm

SS10/ 5Paddle rod, 350mm
SS10/ 6Paddle rod, 550mm
SS10/ 10Small paddle head
SS10/ 11Large paddle head
SS10/ 12Large propeller head (2 blade)
SS10/ 13Small propeller head (4 blade)
SS10/ 14Anchor paddle head