The double planetary mixer includes two blades that rotate on their own axes, while they orbit the mix vessel (also known as bowl) on a common axis.
The mixer bowl may be jacketed for circulation of heating or cooling media.
The mixer can be designed for operation under pressure or vacuum.
Material is generally discharged by manual scooping of the material from the bowl.
For extremely viscous materials, hydraulically operated automatic discharge systems are available that push the material out through the discharge valve