Overhead Stirrer, 20/40 l

The new line of overhead stirrer RSO-20 and RSO-40 convinces with outstanding characteristics, sturdy construction and a brilliant price/performance ratio.
Powerful stirrer with a high torque allows to stir samples with a max. viscosity of 50.000 mPas The accurate speed and torque allows to stir samples with a max. viscosity of 50.000 mPas. Digital models can be controlled on the backlit LCD-Display. Safety is guaranteed by an efficient overload protection.

Catalog Stirrer, Mixer and Shaker


PI logo

RSO-20D • RSO-40D
All Features at a glance
• digital stirrer with LCD-display
• micro-processor controled speed
• smooth start procedure
• selectable display of speed/torgue
• RS 232 Interface
• Overload protection
• push through shaft
RSO-20A • RSO-40A
All features at a glance
• digital speed readout
• stepless speed adjustmen
• sturdy construction
• very quiet operation
• safety circuit
• 2 years warranty
max.stirring quantity20 l H2O40 l H2O20 l H2O40 l H2O
Motor rating input70 W130 W70 W130 W
Motor rating output5010050100
Speed0-2200 rpm, stepless0-2200 rpm, stepless50-2200 rpm, stepless50-2200 rpm, stepless
max.Viscosity10.000 mPas50.000 mPas10.000 mPas50.000 mPas
max. Torquet30 Ncm60 Ncm30 Ncm60 Ncm
Ø chuck range0,5-10 mm0,5-10 mm0,5-10 mm0,5-10 mm
Push through shaftyesyesyesyes
Fastening on standExtension 16 mmExtension 16 mmExtension 16 mmExtension 16 mm
Torque displaynonoyesyes
Dimension83x220x186 mm83x220x186 mm83x220x186 mm83x220x186 mm
Weight2,5 kg3,5 kg2,5 kg3,5 kg
Protection classIP 21IP 21IP 21IP 21
Voltage100-240 V100-240 V100-240 V100-240 V
Frequency50/60 Hz50/60 Hz50/60 Hz50/60 Hz