B&M Longworth (Edgworth) Ltd

Sett End Road North, Shadsworth Business Park, BB1 2QG Blackburn, Lancashire
United Kingdom of Great Britain and Northern Ireland
Telephone +44 1254 680501
Fax +44 1254 686539


Hall map

K 2016 hall map (Hall 8b): stand E48

Fairground map

K 2016 fairground map: Hall 8b

Our range of products

Product categories

  • 01  Raw materials, auxiliaries
  • 01.01  Thermoplastics
  • 01.01.085  Polyethylene terephthalate (PET)

Polyethylene terephthalate (PET)

  • 03  Machinery and equipment for the plastics and rubber industries
  • 03.01  Machines and equipment for preprocessing and recycling
  • 03.01.008  Melt filters
  • 03  Machinery and equipment for the plastics and rubber industries
  • 03.08  Ancillary equipment
  • 03.08.011  Mould and die cleaning equipment

Mould and die cleaning equipment

Our products

Product category: Melt filters

Burn Off Ovens

Longworth’s burn-off oven system is an integral part of our component cleaning service.

For years we’ve developed and refined our processes to meet our exacting requirements and those of our clients. The huge advances we’ve made in the control and operator interface aspects of burn-off oven technology is evident in the extensive range of ovens we design, build and install for customers on an international basis.

Although our standard selection includes several models in various sizes – on the rare occasions that our selection doesn’t offer something to suit your requirements, we will design an oven to address your specific needs.

How does a burn-oven work?
The fundamental process or a burn-off oven is known as pyrolysis. This is a combination of thermal and chemical decomposition of organic material in the absence of oxygen. Pyrolysis is one of the most effective available methods of removing plastic or paint coatings from a wide range of metal components. The process involves heating a contaminated item in a ceramic lined oven (generally referred to in industry as a burn-off oven) at a precisely controlled temperature with a low oxygen environment. This will cause the vaporisation of any volatile constituents present and the thermo-chemical decomposition of the organic material. Resulting vapours and fumes are heated further in a separate afterburner chamber and converted into water vapour and harmless gases that can be legally and safely discharged to atmosphere.

Our Ovens
Our burn off ovens are constructed to exacting standards to suit the particular requirements of individual clients. To achieve the precise control our customers expect, each oven features a number of distinct burn-off or pyrolysis temperature profile settings. These profiles can be used to gradually breakdown the contamination whilst preventing the overheating of the component being processed. Typical uses of our ovens include the removal of polymers from extrusion equipment, the removal of coatings from jigs and fixtures and the removal of grease, residues and old coatings from food production equipment. The key motivation is always to allow reuse of the equipment instead of replacement. The robust design and construction of the units means they offer years of reliable performance even in the harshest industrial situations. Burn-off oven interiors can also be lined in stainless steel to avoid damage to internal insulation sustained via everyday knocks and scrapes. Our skilled and responsive team of engineers will ensure that your oven is maintained to perform at optimum efficiency and in compliance with the latest environmental and safety standards and regulations.

More Less

Product category: Melt filters

Component Cleaning

Component cleaning is available on both a one-off or retained contract basis.

Our service conserves client resources and is kinder to the environment, providing a legitimate alternative to costly component replacement.

Longworth’s state-of-the-art facility incorporates innovative technologies for use in a variety of component cleaning applications including:

A variety of ultrasonic and aqueous processes
Polymer production filter cleaning equipment
Enclosed high-temperature solvent systems
Pyrolysis or burn off ovens
Automated high pressure spray washing
Slurry flushing
DEECOM® super heated steam cleaning

Our component cleaning processes operate in line with BS EN ISO 9001:2008 requirements, an accreditation we’ve held for over 15 years. Our extensive experience allows us to establish and address what type of cleaning process will achieve the best results in relation to any particular type of contamination. In instances where components may appear defective, we arrange for independent inspection by objective third party organisations that identify any flaws, via extensive testing and analysis techniques, including:

Bubble and mass testing

With all of our methods and processes tightly controlled and stringently monitored, we’re able to cater for the component cleaning requirements of most clients, delivering a high standard of service backed up by unrivalled aftersales support, troubleshooting and cleanliness validation.

More Less

Product category: Melt filters


Longworth’s engineering capabilities include the specialist design and manufacture of bespoke equipment and machinery to suit the individual requirements of clients all over the world.Our specially commissioned ultrasonic tanks are currently used throughout Europe and the Far East.

We’ve also established ourselves as the leading supplier of Triethylene Glycol (TEG) cleaning systems for major polymer processors for over 30 years. We’ve consolidated this position by introducing customers to several supplementary value added services, such as:

Pyrolysis ovens and burn off ovens
Dedicated spray bays
Automated high-pressure spray and wash systems
Conditioning chambers
Drying ovens
Disc filter assembly and dis-assembly rigs
Effluent treatment plant
Solvent reclamation

Longworth also offers further high-quality unique services including bespoke cleaning systems designed for use in high-hygiene situations like food production and equipment sterilisation.

Our patented DEECOM® superheated steam cleaning system has been tested and proven to offer numerous benefits including:

Improved cleaning performance
Extended filter life
Reduced strain on financial and energy resources
Better health-and-safety and environmental credentials

Our engineering team’s experience and industry knowledge allows us to provide informed and authoritative consultancy on production processes, chemical processing, mechanical and electrical, system evaluation and reviewing

More Less

About us

Company details

Welcome to Longworth – a global leader in the latest cleaning technology solutions.

We offer professional, reliable and flexible component cleaning solutions to a diverse range of sectors that see our service as a perfect alternative to in-house cleaning.

Our extensive range of cleaning processes and our expertise and knowledge allow us to confidently remove most contaminants from a wide range of components.

Our cleaning solutions include:

Ultrasonic cleaning
Aqueous cleaning
Pyrolysis and burn off
Deecom® steam cleaning
Slurry flushing

So, if you want to enhance your manufacturing or production process by extending the lifetime of parts, or need a highly effective and more environmentally friendly cleaning solution then contact us and see how we can help.

More Less