About us

Company Profile

After being involved in the filter industry from the mid 1970’s, specialising with filter presses and rubber carrier belt filters “Polyfilters” was formed by Martyn Walton in 1994. since which time the “Polyfilter” has been developed into the world’s leading solution for Horizontal Vacuum Belt Filters, giving ultra low capital, operation and maintenance costs, along with unrivalled reliability.

The POLYFILTER Horizontal Process Filter is probably the most versatile filter in the marketplace today. If your product, or effluent sludge, can be filtered in the laboratory on a Buchner filter, it can be filtered on the plant with the POLYFILTER Horizontal Process Filter.

The POLYFILTER has been developed and refined over the years and many of the filters are over 25 years old and still operating 24/7 with minimal maintenance. The only consumable on the filter is the actual filter cloth.

AJM Polyfilters Ltd are manufacturing the latest version of the POLYFILTER filter from modern Manufacturing premises in West Yorkshire, along with a fully developed laboratory housing our pilot filter which is available for trials at our premises. Alternatively, we can rent our Pilot filter for longer trials at our customers facilities.

AJM Polyfilters Ltd continues to develop the process, with the introduction of Siemens Control systems where requested. This can be integrated with most Siemens process controls. We also offer Allen Bradley and Mitsubishi controls.

Generally, the filter is operated by pneumatics and is suitable for ATEX and other safe zones.

How we work

AJM Polyfilters Ltd will professionally analyse your specific requirements and following comprehensive testing of your material in our Laboratory we will advise on the most suitable filtration technology for your application.

We will consider your specific requirements, whether you are recovering the liquid, solid or both. Do you need to have clean solid or recover more of the liquid? We can discuss washing systems including counter current washing of the solids.

Do you have to control the mass flow through your process, AJM Polyfilters Ltd can work with you on minimising the cost of your process, either reducing energy usage, or consumable usage,i.e. water, acid, or other consumables.

Our tried and tested process for product and process evaluation has benefitted many companies over our history and we have supplied filters to all four corners of the globe.

Message us for a review of what we can do to assist you

Our Process

Evaluate the customer specific requirements

Test the material in our laboratory

Provide a detailed evaluation and recommendation

Design and build a bespoke filter for the customer specific needs

Commission the filter

Provide ongoing support to improve the plant process.

Our History

AJM Polyfilters Ltd was founded in 1974 by Martyn Walton, originally trading as AJM Filtration..

The business has steadily grown throughout the years and has been able to withstand recession where others have disappeared or merged in larger industrial conglomerates.

1974

Started in Filter presses, Technical and Manufacturing

1974

1976

UK sales agents for Rubber Carrier Belt filter.

1976

1982

AJM sales agency started developing, Filter Press components, pumps and auxiliary equipment, Filter press plates, Valves etc. 

1982

1985

Sales agency for ADPEC vacuum belt filters. Original Manufacturer of the belt filters, filter press and auxiliary equipment. 

1985

1998

Polyfilters added novel developments to Indexing Vacuum Belt filter 

1998

2004

Developed advanced Cake Compression Dryer for Indexing vacuum Belt filter

2004

2008

AJM Energy Formed, energy saving system for electric motors

2008

2011

AJM Polyfilters USA sales office opened

2011

2012

Acquired Foxwell Trackers (www.foxwell-trackers.co.uk)

2012

2014

Polyfilters(UK) Ltd renamed AJM Polyfilters Ltd 

2014

2016

New laboratory opened in UK for testing customers materials

2016

2017

Business aquired by Andrew Rhodes 

2017

2017

Updated the pneumatic control system to Siemens HMI control system 

2017

2018

Opened new assembly and test facility in UK 

2018

2020

Introduce Allen Bradley control PLC to our product range 

2020