Charles Ross & Son: This company has recently introduced a new model to its line of double planetary mixers, with the mix can raised to a fixed drive assembly instead of positioned on the floor. This allows the addition of fixed and rigid connections for liquid, dry powder and other service connections into the hood. The connections do not need to be disconnected between batch-es. Many additional options are available such as charging and sight ports, variable-speed drives and computerized control packages. Units of this design are available through 750 gallons capacity.