Muesli, oil or milk powder – food production is characterized by the variety of foodstuffs. Numerous production steps such as extrusion, drying, cooling or product packaging are required for their production. The result: Dust-rich or strong smelling odour emissions, which inevitably make their way into the atmosphere and are subject to strict thresholds. Riedel Filtertechnik puts a stop to these odour emissions – to ease the burden on neighbors and the environment. We offer a broad range of products in the field of dedusting – from dust extraction to various filter systems. Even when reducing odour emissions, our customers benefit from energy efficient solutions with our patented plasma generation concept. Here, we value the best-possible design of systems and their components, such as structural explosion protection per ATEX guidelines. All systems are completely preassembled and tested in production before they are delivered. This means we can guarantee quick and seamless installation and setup at our customers’ sites.


Your requirements

  • Optimized system design
  • Simple maintenance and operation
  • Maximum system availability
  • High operational reliability and low operating costs
  • Compliance with European laws, official and technical guidelines, stipulations and norms
  • High dust and odour reduction of more than 95% through innovative and sustainable solutions
  • Improved energy efficiency
  • Occupational safety
  • Takes up little space

Our services

  • Consultation and assessments
  • Exhaust air cleaning and automation
  • Standardized and individual filter systems
    Bag filters, hose filters, cartridge filters, Venturi and absorption scrubbers, twist separators und cyclones
  • Dedusting of conveying systems, dryers, production and packing machines
  • Certified solutions in line with ATEX and pressure equipment guidelines
  • Process engineering components to increase system reliability
  • Turnkey system installation
  • On-site Customizing with our mobile COPLAS clean unit – for customer-specific system design for optimal odour reduction
  • On-site pilot tests as part of the creation of BImSchG applications
  • Assistance with official control measurements



Food // United Kingdom

Dedusting of a spray dryer for the production of skim milk and whole milk powder

Cleaning In Place fabric filter for exhaust air cleaning of a spray dryer

  • JMH-CIP hose filter with CIP function
  • Air volume: 125,000 m³/h
  • Filter area: 771 m²
  • Filter diameter: 5,100 mm
  • Filter height: 14,750 mm
  • Total weight: 22 t


  • CIP function
  • Single cleaning for each filter hose possible
  • Residual dust content < 5 mg/m³

Food // Italy

Odour reduction of exhaust air from oilseed processing plants in the food industry by injection of plasma-enriched air using COPLAS clean technology

Delivery of COPLAS clean systems for the air treatment of two production lines with odour concentrations of approx. 1,000 GE/m³

  • Total air volume: 87,000 m³/h
  • Injection fans for fresh air supply: up to 3,300 m³/h
  • Bag filter as pre-filter for removal of smallest particles of fresh air
  • HMI for user-friendly operation
  • Possibility of remote maintenance via LTE
  • Prevention of backflow of exhaust air into our system


  • Flexibility of plasma setting
  • Possibility for easy upgrade of the equipment in case of future increases of the volume flows to be treated
  • Odour reduction: < 300 GE/m³

Food // Hungary

Process dedusting for the production of flavors, spices, starch and milk powder

Fabric filter JMP cartridge filter

  • Air volume: 2,500 m³/h
  • Filter area: 48 m²
  • Number of cartridges: 4
  • 2nd filter stage: H13
  • Level indicator: installed in the dust collection hopper
  • Loosening unit: installed at the dust collection hopper
  • Radial fan: 4 kW
  • Silencer: material 1.4301


  • Separation efficiency 99.95 %
  • Filter design according to ATEX directive
  • Differential pressure controlled filter cleaning
  • Noise level < 78 db(A)

Food // Germany

Dedusting of a production and logistics center of a wheat starch manufacturer

Fabric filter JMT bag filter

  • Total air volume: 24,750 m³/h
  • Total filter area: 348 m²


  • Residual dust content < 5 mg/m³
  • Filter design according to ATEX directive
  • Differential pressure controlled filter cleaning

We ask for your agreement