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Empowering the Future of Science Education

The Benchmark OS40L Overhead Stirrer delivers powerful, precise stirring for low to medium viscosity samples with a maximum capacity of 40 liters. Designed for laboratories and industrial applications, it features an advanced digital LCD control panel for real-time speed and timer monitoring.

The OS40L includes a complete stand assembly and a 4-arm stainless steel propeller (IPS2050-P-S4), offering everything needed for immediate setup. Its compact, quiet design and tool-free chuck system make it user-friendly, while built-in safety sensors prevent damage from overload or obstruction. Ideal for mixing in vessels up to 24 inches tall, with additional steel and PTFE accessories available.