Rotavac Lab Brochure

We have a recently created a new brochure for a lab scale filter, the Rotavac Lab. The Rotavac Lab is an innovative filter, used for product evaluation tests or as a preliminary step to pilot and full scale equipment trials. To find out more, click the image below.

The Rotavac One Series – Compact Filter Station

Filtration Services Ltd have designed and manufactured a continuous compact filter station for use on small volume filtration applications.  The station comprises of a 1m²  compact rotary drum vacuum filter, filtrate receiver, pumps and control panel.  This mini-plant is easy to install and has a footprint of only 1m x 2m, making it ideal for small volume filtration applications.

Dr Andrew Walker, Managing Director of Filtration Services Ltd, said, “This new style of filter is ideal for those applications where the amount of material to be filtered is relatively small; be it an effluent treatment system or low volume production run.  Traditionally, rotary drum vacuum filters have been expensive to install due to the necessary ancillary equipment.  With this design, the entire filtration plant is contained within a single skid.  Our filters are normally much larger than this, sometimes up to 60m² filtration area, but we recognise the need for smaller, compact units too.”

For further information on the Rotavac One rotary drum vacuum filter series, please contact Filtration Services Ltd.

Filtration Services Ltd, a supplier of rotary drum vacuum filters for the bulk separation of solids from liquids has developed a unique precoat automatic knife advance system [AKAS™] used for cutting precoat.  Precoated rotary drum vacuum filters [RDVFs] are used in many industries for a wide variety of applications.  They are used to ensure that the filtered liquid is clear, bright and, above all, solids-free.  Precoat, being diatomaceous earth, perlite or cellulose based, is a sacrificial filter medium used on the precoated rotary drum vacuum filter and a constant, yet necessary, expense to the operation of the filter.  Using precoat more efficiently has a number of benefits which include reduced operating costs, longer filtration cycle times, increased productivity and improved yields.

Dr Andrew Walker, Managing Director of Filtration Services Ltd, says “We developed the first AKAS™ version back in 1996 for a major pharmaceutical company to improve the reliability and operation of their precoat knife discharge system.  The first AKAS™ was limited to a mere 25 microns per drum revolution but this was still a significant improvement on the existing electro-mechanical knife advance systems.  We’re now onto the third generation ‘G3’ control system and are constantly looking for ways to make further improvements and enhancements.  All of our new precoat rotary drum vacuum filters use this technology and we have retrofitted AKAS™ controls onto many other rotary drum vacuum filter marques including Dorr-Oliver, Paxman, Eimco, Stockdale, Alfa-Laval and Lundin.”

The AKAS™ uses synchronous digital technology to control the operation of a precoat discharge assembly in increments of 5 micron; about 1/20th the thickness of an average human hair.  This level of control allows the knife advance rate to be finely adjusted and optimised for each application.

Set up and operation of the AKAS™ is quick and easy via the touchscreen interface, with four built-in ‘recipe’ selections for switching between preset values.  The control unit has the capability for local or remote recipe selection depending upon the site specific requirements.