Magnetic Stirrer OS40-S (CAT#: STEM-BC-2460-ZJF)

The OS40-S is a compact magnetic stirrer designed for continuous and efficient mixing of liquid samples in standard laboratory vessels. It employs a strong permanent magnet assembly to drive a PTFE-coated stir bar placed inside the vessel, producing consistent fluid motion without direct mechanical contact. The brushless DC motor provides smooth, quiet, and maintenance-free operation across the full speed range. A uniform parallel magnetic field ensures consistent stirring performance regardless of stir bar position on the working surface. The chemical-resistant working plate is constructed to withstand spills of common laboratory solvents and reagents. Speed is adjusted via a rotary dial or digital interface, depending on the model, allowing precise control. The instrument is suitable for low-viscosity liquid mixing, dissolution, and routine sample preparation. Its compact footprint makes it appropriate for bench-top use in space-constrained laboratory environments. The unit is compatible with a wide range of vessel types including flasks, beakers, and bottles. It is commonly used in chemistry, biochemistry, pharmaceutical, and educational laboratory settings.

Maximum stirring volume: 40L
Speed range: 50-2200rpm
Speed display: LED
Display: LED
Enclosure protection rating: IP21
Motor output power: 100W
Power: 130W
Power supply: 100-240V, 50/60Hz
Weight: 2.8kg
Operating temperature range: 5-40°C
Relative humidity: 80% RH

DC brushless motor for maintenance-free, spark-free operation
LED display for clear parameter readout
Explosion-proof design for enhanced laboratory safety
Rated enclosure protection (IP) against dust and moisture ingress
Maintenance-free design for long operational life
LCD or LED display for real-time speed monitoring
Uniform parallel magnetic field for consistent stirring
Chemical-resistant working plate surface

STEM-BC-0309-ZJF
STEM-BC-0310-ZJF
STEM-BC-0311-ZJF
STEM-BC-0312-ZJF
STEM-BC-0313-ZJF