Mini Magnetic Stirrer, Brushless Motor for Laboratory Mixing

Description

The Mini Magnetic Stirrers, also known as compact laboratory magnetic stirrers or benchtop magnetic mixers, are designed for mixing compatible liquids using a rotating magnetic field and a magnetic stirring bar placed inside the sample container. These laboratory magnetic stirrers provide a practical alternative to manual stirring for routine solution preparation, reagent mixing and sample handling. Their compact construction makes them suitable for laboratories requiring controlled liquid agitation without occupying excessive bench space. The Joanlab MS3 Mini Magnetic Stirrer features a 1 L maximum stirring capacity, with adjustable speed from 200 to 1800 rpm. It is equipped with a brushless motor, rotary knob control and a 125 mm PVC work plate.

The MS3 operates with a 3 W power rating, an IP42 housing protection rating and a universal 100–240 V, 50/60 Hz power supply. Its compact dimensions of 138 × 130 × 41 mm and approximate weight of 200 g make it suitable for routine laboratory mixing. The Joanlab MS5S Mini Magnetic Stirrer provides a larger 2 L stirring capacity, with adjustable speed from 200 to 2000 rpm. It features a 135 mm PVC work plate, brushless motor and an LCD display with knob-controlled speed adjustment. With a 5 W power rating, the MS5S is designed for laboratory applications requiring a larger stirring volume. Its overall dimensions are 168 × 160 × 47 mm, with an approximate weight of 460 g.

The Compact Round Magnetic Stirrer, 1.5 L offers an additional benchtop mixing option with a brushless DC motor and stepless speed adjustment from 300 to 2000 rpm. Its round design is suitable for routine solution preparation and liquid mixing. This 1.5 L model features rare-earth magnets for magnetic coupling with the stirring bar and a PET work plate that provides resistance to many compatible laboratory chemicals. Its design supports quiet operation with reduced vibration under suitable working conditions. The Compact Round model also includes a sensor mounting provision for positioning compatible pH electrodes or other sensors during liquid mixing and testing procedures.

These magnetic stirrers are suitable for laboratory reagent preparation, chemical solution mixing, water testing and educational experiments. Their adjustable speed controls allow users to select an appropriate stirring rate according to the liquid properties and vessel dimensions. The stated maximum stirring capacities refer to water under specified operating conditions. Actual mixing performance depends on sample viscosity, vessel geometry, stirring bar size and operating speed.

To operate a magnetic stirrer, position a suitable container on the work plate, place a compatible magnetic stirring bar inside the liquid and gradually increase the speed until stable circulation is achieved. Avoid excessive speeds that may cause splashing or loss of magnetic coupling. These models are magnetic stirrers without an integrated heating function and are intended for mixing applications rather than temperature-controlled heating.

Safety Precautions: Place the stirrer on a stable laboratory surface, keep electrical components dry and use compatible vessels and chemicals. Avoid operating beyond the specified capacity or speed limits. Confirm the electrical connection and follow the manufacturer’s operating instructions. Each selected variation is supplied as one Mini Magnetic Stirrer in the chosen model and capacity. Magnetic stirring bars, sample containers, pH electrodes and other accessories are not included unless specifically listed with the selected product.

LabChoice Australia supplies magnetic stirrers, laboratory mixers and benchtop mixing equipment for chemistry laboratories, universities, research institutions, educational facilities and industrial testing laboratories across Australia.