Mixing Systems for Ultra-High Viscosity Materials

The ROSS line of Double Planetary Mixers, which come in various configurations and sizes ranging from half of a pint to 750 gallons, are designed for mixing thick, sticky, or putty-like materials. The pictured Sanitary Double Planetary Mixer Model DPM-4S and Sanitary Discharge System Model DS-4S were fully customized and engineered for efficient processing of medical-grade silicone formulations in a portable workstation.

The four-gallon Double Planetary Mixer features two patented HV stirrer blades. Rotating on their own axes, the blades orbit the mix vessel on a common axis using a slicing motion that pushes product forward and downward, an ideal process for ultra-high viscosity materials. Designed for vacuum operation, the mixer is equipped with an electromechanical lift to raise and lower the vacuum hood, as well as a 50-psig heating/cooling jacket on the mix can. Multiple sets of mix can and vacuum hood can be supplied for convenient cleaning with minimal downtime.

The accompanying Discharge System is designed to maximize product yield while also simplifying clean-up. It consists of a platen that is lowered hydraulically into a mix vessel. As the platen pushes down on the batch, product is forced out through a valve on the side or center bottom of the vessel with minimal product left behind. The change-can design enables semi-continuous operation, which can significantly increase production.

Charles Ross & Son Company