During stirring, the continuous phase is liquid. With the production of solutions (solid dissolved in liquid), emulsions (mixture of immiscible liquids) and suspensions (insoluble solid in liquid) can be investigated.

Flow impeders can be inserted in the tank to investigate their influence on the mixing process. To determine the mixing time and mix quality of solutions, a conductivity meter is available. The device can also be used to measure temperatures.

A removable coiled tube serves as a heat transfer medium. It can be used for heating or cooling with water from the laboratory supply. A valve with precise adjustment is used to adjust the flow rate. This enables the influence of temperature changes on the mixing process to be investigated, e.g. due to fluid viscosity depending on temperature.

Eleven different, easily interchangeable stirrers are provided. With plastic balls which are dispersed in the fluid it is possible to observe the characteristic flow fields of the different stirrer types.

Mixing takes place in a tank which is resistant to chemicals and heat-resistant. With the high-performance stirring machine even high-viscosity mixtures can be produced. The speed is adjustable. The torque is indicated on the unit’s digital display. This enables the power demand to be determined.

Specification:

Investigation of mixing processes during stirring.

Removable coiled tube for cooling or heating with external water supply.

Transparent stirred tank with 4 removable flow impeders.

Speed-controlled stirring machine with digital torque indicator.

11 interchangeable stirrers: axial-, radial-, tangential-conveying.

Portable device for measuring conductivity and temperature.

Technical data:

Stirred tank

Nominal capacity: approx. 15L

Material: DURAN glass and PVDF (base)

Coiled tube

Diameter: approx. 140mm

Material: stainless steel

Stirrer elements

7 propeller stirrers

2x 3 blades, Ø 70mm / 100mm

1x 4 blades, Ø 70mm

1x 2 blades, Ø 76mm, left

1x 2 blades, Ø 76mm, right

2x 2 blades (angled), Ø 70mm / 100mm

3 blade stirrers

2x Ø 70mm with 3 / 6 holes

1x Ø 100mm with 10 holes

1 turbine stirrer with shaft: Ø 50mm

Measuring ranges

Conductivity: 0…200mS/cm

Temperature: -5…100°C

Speed: 50…2000min-1

230V, 50Hz, 1 phase

230V, 60Hz, 1 phase

120V, 60Hz, 1 phase

Dimensions and weight

LxWxH: 1150x825x1950mm

Weight: approx. 135kg.