Batch Mixer Section
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High Speed High Shear Mixers Batch Mixers

The Silverson Principle For over 75 years Silverson has specialised in the manufacture of quality high shear mixers for processing and manufacturing industries worldwide. With customers in over 150 countries, and serving industries as diverse as food, pharmaceuticals, cosmetics, luboils and petrochemicals, Silverson has become the world leader in the field of high shear mixing. Time after time, companies specify Silverson mixers as the “standard” equipment for their manufacturing process. The key to this success is based on the professionalism and commitment Silverson shows to each of its...

Why Silverson? Speed The exceptionally rapid Silverson mixing action substantially reduces process times compared with conventional agitators and mixers and can reduce mixing times by up to 90%. Versatility The advantage of the Silverson approach to mixing is that any one machine can perform the duties that in the past may have required several different pieces of process equipment. This unrivalled versatility allows any machine to perform the widest range of mixing applications: -  Blending - A homogeneous product is rapidly produced when blending liquids of similar or greatly varying...

How the Silverson Works The advantages of Silverson’s high shear rotor/stator mixer over simple conventional stirrers or agitators stem from the multistage mixing/shearing action as materials are drawn through the specially designed Silverson workhead - the heart of every machine. The high-speed rotation of the rotor blades within the precisionmachined mixing workhead exerts a powerful suction, drawing liquid and solid materials upwards from the bottom of the vessel and into the centre of the workhead. Centrifugal force then drives the materials towards the periphery of the workhead where...

Interchangeable Heads and Screens A comprehensive range of workheads and screens is available for all Silverson rotor/stator mixers. These easily interchangeable workheads offer great versatility by allowing any machine to be adapted to perform a wide range of mixing operations including emulsifying, homogenising, disintegrating, dissolving, dispersing, blending, particle size reduction and de-agglomerating. Changing from one head or screen to another is quick and simple. General Purpose Disintegrating Head This is the most versatile of all the heads, giving an exceptionally vigorous mixing...

Batch Mixers Batch Mixers Silverson offers a complete range of multipurpose batch mixers able to perform the widest variety of applications - mixing, emulsifying, homogenising, disintegrating and dissolving with an efficiency and flexibility unmatched by other machines. Medium Range Models BX to GX Any machine in this range from the 0.75kW BX to the 15kW GX25 can be used on a mobile hydraulic floor stand (local safety regulations permitting). This option greatly increases the flexibility of these mixers, allowing them to be moved from vessel to vessel and to be raised and lowered during...

Large Range Models 700X to MX Silverson is the world leader in the specialised design and manufacture of large scale rotor/stator mixers with a capacity of up to 30,000 litres. All these machines are individually built to order and constructed specifically to suit each customer’s requirements. The large scale mixers possess all the qualities and flexibility of Silverson’s medium range models and include a number of additional and unique features. Each mixer is designed and built to the highest possible engineering standards. From the specially balanced motors to the fitting of precision...

Batch Mixers Duplex Disintegrator Dissolver The Duplex was specifically developed for the disintegration and solubilisation of solid rubbers and polymers for the luboil and adhesive industries, but its success has now seen its introduction into all fields of mixing, whether chemical, pharmaceutical or food. The Duplex differs from the standard multipurpose batch mixers in having two workheads facing in opposite directions; the upper head pulls materials down from the surface of the mix, while the lower head draws material up from the base of the vessel. The combined use of two workheads...

Sealing Unless otherwise stated all machines are designed for operation in unsealed vessels at atmospheric pressure. Where sealing is required machines can be supplied with the appropriate shaft sealing and mounting flange as an optional extra. V-Ring Shaft Seal This is the simplest form of shaft sealing and is designed to prevent the possible ingress of material from outside the vessel. It is also used to minimise vapour loss from the vessel and prevent liquid escaping if a spray ball is used. Single Mechanical Shaft Sealing If the vessel needs to be fully sealed, mechanical shaft sealing...

Batch Mixers Technical Specifications Materials of Construction Medium Range Large Range Wetted Parts: 316L Stainless Wetted Parts: Special Materials General Purpose Bush Material: Bronze Alloy Disintegrating Head Bush Material: PTFE Motor TEFC Other - Stainless, Flameproof/ATEX Slotted Disintegrating Head Mounting Mobile Hydraulic Floor Stand Vessel Mounting Square Hole High Shear ScreenTM V Ring Single Mechanical Double Mechanical Special Sealing Arrangements Ultra-Hygienic Specification Standard 9 Standard Emulsor Head and Emulsor Screen Optional High Speed High Shear Mixers

Mobile Floor Stands A comprehensive range of mobile hydraulic floor stands is available for small to medium scale batch mixers. These enable a machine to be moved from vessel to vessel and to be raised and lowered during operation, if required, in order to give the optimum mixing position at varying stages of the process. The use of a suitable stand greatly increases the flexibility and versatility of the machine. Manually operated hydraulic rams are standard. Pneumatically and electrically powered units are available as an optional extra. Unless otherwise specified, all stands are...