Charles Ross & Son Co. has introduced a new double planetary mixer lined with Teflon, which the company says is ideal for high-purity applications, providing superior chemical and corrosive resistance where stainless steel is not compatible. Highly versatile, the double planetary mixer can process viscous pastes and dough-like materials as easily as it can prepare dry powder blends and wet granulations. It provides gentle but thorough agitation required by shear-sensitive gels and fragile fiber-filled mixtures. This mixer is also frequently used for vacuum drying operations.

A 1.5HP inverter-duty motor drives the HV blades from 6 to 120 rpm (orbital range: 5 – 100 rpm). The agitators and scrapers are raised/lowered into the mix can via an air/oil hydraulic lift. Explosion-proof limit switches prevent operation of the mixer when the vessel is removed or when the stirrers are not in the proper mixing position.

Ross Double Planetary Mixers are available in standard, sanitary and heavy-duty models from 1 to 750 gallons working capacity. Also offered are customizations and auxiliary equipment including custom sight/charge ports, interchangeable mix vessels, load cells, temperature probes and other sensors, heating units, vacuum pumps, discharge systems and recipe controls.