In-Line Ultra Hygienic Mixers

In-Line Ultra Hygienic Mixers

In-Line Ultra Hygienic Mixers

The Silverson Ultra Hygienic series of multipurpose In-Line mixers is able to perform the widest variety of applications - mixing, emulsifiying, homogenising, disintegrating and dissolving, with an efficiency, flexibility and hygienic construction unmatched by other machines.

UHS range mixers are 3-A TPV (Third Party Verification) Certified and are fitted with EHEDG Certified Mechanical Shaft Seals, fully EHEDG certified models are available. They are designed to comply with both FDA and cGMP guidelines.


  • Self-pumping
  • Aeration free
  • No bypassing
  • Interchangeable workheads
  • Self-draining tangential outlet
  • Ultra Hygienic single mechanical shaft seals, easily converted to double mechanical shaft seals
  • No manual dismantling and cleaning is required, significantly reducing maintenance, operating cost, increasing reliability and increasing productivity.

How It Works

Silverson’s line of high shear In-Line mixers offers a great many advantages to the processor - speed, versatility, self-pumping, aeration-free, guaranteed efficiency. At the heart of every mixer is Silverson’s high performance rotor/stator workhead.

Stage 1

The high-speed rotation of the rotor blades within the precision-machined mixing workhead exerts a powerful suction, drawing liquid and solid materials into the rotor/stator assembly.

Stage 2

Centrifugal force then drives the materials towards the periphery of the workhead where they are subjected to a milling action in the precision-machined clearance between the ends of the rotor blades and the inner wall of the stator.

Stage 3

This is followed by intense hydraulic shear as the materials are forced, at high velocity, out through the perforations in the stator, then through the machine outlet and along the pipework. At the same time, fresh materials are continually drawn into the workhead, maintaining the mixing and pumping cycle.


In-Line Ultra Hygienic Mixers
Verso UHS Ultra Hygienic Mixer

Mixer Options


A comprehensive range of workheads and screens is available for all Silverson high shear 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.

Technical Information

Self-pumping throughputs of up to 200,000 litres/hr.
No Bypassing
Product cannot bypass the precision rotor/stator workhead.
Interchangeable Workheads
Single stage rotor/stator configurations as standard. For those applications that require greater shear, interchangeable multistage configurations can be used.
Materials of Construction
Product contact parts in 316L stainless steel. Special materials available on request.
Inlet and Outlet Connections
All sanitary or flange fittings available upon request (i.e., Tri-Clamp, ASA, DIN, etc). All Silverson In-Line Mixers are designed for cleaning-in-place (CIP and SIP).

UHS In-line Mixers, tri-clamp, 50Hz Motors - Dimensions in Millimetres

kW R.P.M TEFC A ATEX A B C D E F Inlet/ Outlet
275 UHS 1.5 3000 512 518 215 80 166 168 133 38
450 UHS 7.5 3000 659 702 300 93 164 225 181 50
600 UHS 15 3000 838 838 381 110 197 263 210 76

The dimensions shown are approximate only and certified diagrams should be used for installation purposes.
Silverson reserves the right to change dimensions and specifications without notice.

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