CHARLES ROSS & SON CO.: Planetary Mixer for No-Charge Testing
The new 4-gal planetary dual disperser (model PDDM-4) is equipped with two high-viscosity blades and two high-speed dispersers.
The Ross Test & Development Center recently announced the addition of an advanced planetary mixer available for no-charge demonstrations. The new 4-gal planetary dual disperser (model PDDM-4) is equipped with two high-viscosity blades and two high-speed dispersers; all four agitators rotate on their own axes while orbiting the vessel, ensuring rapid powder wet-out and deagglomeration.
The unit is designed for vacuum operation and includes a jacketed mix vessel. Reportedly ideal for mixing thick slurries and highly-filled pastes, the PDDM delivers excellent dispersion and uniformity throughout a wide viscosity range up to around 2 million centipoise.
A typical mixing simulation test at the center utilizes the end user’s actual raw materials, and the mixer is operated at process conditions as close as possible to actual production. Proof-of-concept demonstrations, such as high shear emulsification, particle size reduction, dry blending, vacuum drying, high-viscosity mixing and three-roll milling, are performed routinely.