Company: Charles Ross & Son Company
Equipment Snapshot: Ross PowerMix Planetary Dispersers with PLC Recipe Controls deliver superior batch-to-batch consistency in the mixing of high-solids, high-viscosity applications. Two independently-driven agitators—a high speed sawtooth disperser and a low speed planetary stirrer—make the PowerMix ideal for dispersing powders and applying high shear to viscous materials without the risk of localized overheating.
Pictured is a Ross Model PDM-40 PowerMix with a working capacity of 40 gallons. The system is rated for vacuum up to 29.5”Hg and includes a built-in liquid ring vacuum pump. All wetted surfaces are stainless steel 316L polished to 150-grit finish.
The 10HP rectangular planetary stirrer and 15HP dual-blade disperser revolve around the batch while rotating on their own axes at variable speeds. A sidewall scraper arm and bottom scraper attached to the planetary stirrer enhance heating/cooling via the jacketed vessel. A hot water temperature control unit can be supplied with the PowerMix.
In this PDM-40, solid raw materials may be added through 3” sight/charge ports, and liquids through a 1” tri-clamp port. The mixer cover also includes a foam level sensor to relieve vacuum as needed. Mounted to the mixer is a NEMA 4X PLC Control System capable of creating and storing recipes based on agitator speeds, time, temperature and vacuum level. Process variables are entered and monitored from a 10” color touchscreen HMI with data acquisition capability.