The PCE-MSR 415 multi-position magnetic stirrer is a professional laboratory instrument designed for serial stirring, repetitive preparations and simultaneous processing of multiple samples. With 15 stirring positions, it allows several vessels to be processed in the same operating cycle while maintaining uniform and repeatable stirring conditions. It is suitable for chemical, pharmaceutical, food, environmental, cosmetic, quality control and research and development laboratories.

The device is particularly useful when several samples need to be compared under the same operating conditions, solutions must be prepared, liquids homogenised, suspensions kept in motion or serial analyses managed efficiently. Each stirring position supports a maximum volume of 400 ml and vessels with a maximum diameter of approximately 80 mm. This makes the instrument suitable for beakers, small containers, flasks and laboratory vessels compatible with magnetic stirring.

The stirring speed can be adjusted from 300 to 1500 rpm, with 10 rpm setting accuracy. This allows the motion to be adapted to the sample type, liquid viscosity, vessel volume and required level of homogenisation. Lower speeds are useful for gentle mixing or sensitive samples, while higher speeds provide more energetic dispersion and faster mixing.

The PCE-MSR 415 uses a brushless motor, a solution valued in laboratories because it reduces mechanical wear, improves operating continuity and helps maintain stable stirring control. The absence of brushes reduces routine maintenance compared with traditional motors and makes the instrument suitable for prolonged and repetitive use in technical environments.

The integrated timer can be set from 1 to 999 minutes or the stirrer can be operated in continuous mode. This function allows defined-duration tests, preparation cycles, internal protocols and mixing operations with precise timing to be managed. The operator can set the required time and allow the instrument to maintain the stirring cycle in a controlled way, reducing the need for constant supervision.

Pulse mode is an important advantage for applications where the liquid flow must be changed or sample distribution inside the vessel improved. The instrument can automatically reverse the direction of rotation and the reversal interval can be set between 30 and 99 seconds. This function helps reduce dead zones, local sedimentation and non-uniform mixing, especially with samples that tend to settle or require alternating motion.

The stirrer platform is made of stainless steel and coated with non-slip silicone. This provides a resistant, easy-to-clean and stable surface for positioning vessels. The silicone coating helps reduce container slipping during stirring and contributes to protecting the support surface. The structure is supported by four rubber feet, improving stability on the laboratory bench.

The overall dimensions of the stirrer are 568 x 282 x 76 mm, while the useful area of each point is specified as 460 x 264 mm. The approximate weight of 6 kg provides stability during operation while keeping the instrument manageable and suitable for benchtop placement. The IP42 protection rating offers appropriate protection for standard laboratory use, always in compliance with safety procedures and good operating practice.

The operating conditions are +5 to +40 °C and maximum humidity 80% RH. The power supply can be 110 V AC / 3.6 A or 230 V AC / 1.7 A, making the device adaptable to different electrical configurations. Power consumption is 15 W, a low value considering the capacity to stir several positions simultaneously. The RS-232 interface is intended only for maintenance or repair.

For reliable results, magnetic stir bars suitable for the sample volume and type should be used. The recommended magnetic stir bar length is 25 mm. Vessels should be positioned correctly on the stirring areas, overloads should be avoided, the vessel bottom should be suitable for magnetic stirring and speed should be increased progressively to avoid splashing, vortex loss or decoupling of the stir bar.

The PCE-MSR 415 multi-position magnetic stirrer is therefore a practical and professional solution for laboratories that need to manage multiple samples simultaneously, in an organised and repeatable way. The combination of 15 positions, brushless motor, adjustable speed, timer, pulse mode, automatic reversal and silicone-coated stainless steel platform makes it suitable for serial analyses, laboratory preparations, quality control and R&D processes where stirring reproducibility is essential.

Delivery scope:

1 x Multiposition Magnetic Stirrer PCE-MSR 415
1 x 25 mm stir bar
1 x Connecting cable
1 x User manual