Duplex immersion mixer SILVERSON MACHINES

The Duplex is an immersion mixer which consists of two rotor/stator workheads mounted on a single shaft. The upper workhead is inverted so that it draws materials down from the surface of the mix and subjects them to an initial coarse disintegration. The lower workhead then draws this liquid and solid material upwards from the base of the vessel and provides further high shear processing. This system can rapidly reduce solids to a fine particle size, resulting in considerably faster disintegration and solubilisation. The improved product movement produced by the two workheads also makes the Duplex ideal for use on high viscosity materials and for incorporation of powders which tend to float and are difficult to wet out.

The Duplex was originally designed for rapid disintegration and solubilisation of solid rubbers and polymers for the luboil and adhesive industries. However, the considerable advantages offered by the system has led to its introduction into other applications, including in the food, chemical, cosmetic, pharmaceutical and petrochemical industries. Duplex machines are available in a range of sizes from laboratory scale units up to the KDD, one of the largest immersion mixers in the Silverson range.

Typical applications include:
Rapid solution of rubbers and polymers into lubricating oils, solvents and bitumen
Disintegration and dissolving of solid resins into varnishes, inks and other coatings
Dispersion and blending of press cakes or filter cakes
Rapid incorporation of pigments and fillers
Recovery of waste sugar confectionery
Preparation of plant extracts
Disintegration of frozen meats, bone slurries, meat pastes/purées

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