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Verso Laboratory In-Line Mixers

Verso Laboratory In-Line Mixers

The Silverson Verso is a bench top In-Line mixer ideal for laboratory or pilot scale applications. The unit offers excellent reproducibility when scaling up and provides an accurate and easy means of forecasting the performance of larger In-Line mixers under full-scale working conditions.

The Verso is equipped with a digital tachometer, ammeter and programmable timer, invaluable for applications where process validation and reproducibility are required. It is also compatible with the Silverson “DataLogger” program.


  • Touch pad control panel
  • Powerful 0.75 kW (1 hp) motor with infinitely variable speed control
  • Single or multistage interchangeable workheads available
  • Self-pumping
  • Maximum operating pressure 100 psi (7.6 bar)
  • 0.75” Tri-clamp inlet/outlet connections
  • Single mechanical shaft seal
  • All wetted parts are in grade 316L stainless steel
  • Hygienic construction

How It Works

Silverson’s Verso Pilot Scale In-Line mixer 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.

Verso Laboratory In-Line Mixers
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.

Verso Laboratory In-Line Mixers
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.

Verso Laboratory In-Line Mixers
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.

Product Videos

Verso – Laboratory In-Line Mixer
Verso – How It Works


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 1,500 litres per hour.
No Bypassing
Product cannot bypass the precision rotor/stator workhead.
Interchangeable Workheads
Single and multistage rotor/stator configurations as standard.
Materials of Construction
Product contact parts in 316L stainless steel.
Motor Specification
750W (1hp) 110 volt, single phase 60 Hz. Nominal maximum speed 8000 rpm.
Speed Control
Infinitely variable electronic speed control with integral on/off switch.
Inlet and Outlet Connections
3/4” Tri-Clamp connections. Self-draining tangential outlet.

Verso Laboratory In-Line Mixers
kW R.P.M A B C D E F
0.75 8000 560 203 118 331 113 81

All dimensions shown are in millimetres. 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.

Mixer Options

Verso Vessel Package - UK
Verso Vessel Package

The Verso can be supplied with a Vessel Package comprising a 20 litre stainless steel vessel, vessel stand and valve.

Lab L5M-A Laboratory Mixer - UK
L5 Series Laboratory Mixer

Over 40 interchangeable mixing assemblies are available for L5 Series Laboratory mixers. The unit is finished in a tough, easy to clean, non-chip white nylon coating. All wetted parts are in 316L stainless steel with the exception of the bush which may be bronze alloy or PTFE. The mixing unit may be effortlessly raised and lowered using the touch pad control, which offers increased cleanliness and reliability.

Lab L2/Air (Compressed air) - UK
L2/Air (Compressed air)

Designed for use in ATEX Zoned/ Flameproof areas, the L2/AIR is powered by an intrinsically safe air motor and will accept any L5 series mixing assembly. Capacity is from 1ml up to 12 litres.

Lab Sealed Unit Lab Mixer - UK
Sealed Unit Lab Mixer

The Sealed Unit Laboratory Mixer is designed for working on sterile materials where it is essential to exclude airborne contamination. Capacity is from 1ml up to 5 litres. Special assemblies are available for working under vacuum.

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