Cole-Parmer offers Electronic Overhead Stirrers. These stirrers feature a through-shaft design that permits adjustment of shaft length and impeller depth?allowing placing or removing mixing vessels without repositioning the mixer. The motor and drive unit are conveniently integrated into a compact aluminium and thermoplastic housing with easy-to-use controls and a clear LED display of rpm. Mixers feature infinitely adjustable stepless speed control. Continuous comparison of shaft speed to desired speed is maintained and variations are adjusted automatically. This guarantees a constant speed even with changes in fluid viscosity. Quiet, fan-cooled motors feature thermal overload shut-off, and an efficient heat-dissipating design to ensure a long service life. Motor is maintenance-free and rated for continuous duty. Safety circuits ensure automatic cut-off in an anti-stall or overload condition.

With more than 50 yrs. of experience, Cole-Parmer is a global leader in supplying fluid handling, life science, and general laboratory products, instrumentation, and equipment to the Biotech, Chemical, Academics, Environmental, Food, and Print Industries. Offering a wide selection of products and instrumentation, Cole-Parmer, an ISO 9001:2008 certified company, works with R and D, pilot plant and production, specializing in providing scale-up assistance. With a mix of proprietary products and strategic partnering with leading manufacturers, Cole-Parmer?s business is highly diversified across a spectrum of products, consumables, services and solutions.