Benchmark Scientific mixer heads are suitable for the BenchMixer Series vortex mixers for shaking, mixing or vortexing liquid samples. These mixer heads are equipped with a powerful motor that ensures instantaneous and efficient vortexing of samples, saving valuable time in the lab. These heads feature a Q-Drive dynamic balancing system, ensuring smooth and consistent vortexing without any wobbling or excessive noise. They have variable speed control, allowing users to precisely adjust the vortexing speed ranging from 200 to 3200 rpm.