Organic waste

Composting plants

Our products and services range from mobile machines for open composting systems, to large plants with stationary machines for preparing and packaging the final product. 

In mechanical preparation, shredding and mixing creates a starting mixture that is ideal for the rotting processes. If necessary, contraries can be sorted out by screening.
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The decomposition and conversion – the rotting process - performed by microorganisms are controlled from the outside through ventilation, mixing and irrigation. We use open solutions like windrow composting, as well as closed processes in rotting tunnels, or combinations of both. 
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Post processing starts with screening of the cured compost to the desired particle size. Further separation steps may be necessary, depending on the degree of contamination. Following removal of contaminants by sifting, the screen overflow can be reused as structural material or biomass fuel. 
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Gentle
shredding

Low-speed machines like the Crambo or high-speed ones like Axtor are used for shredding. Both types can be adjusted to output the desired particle size, using the appropriate screen baskets and teeth. This step can be enclosed or open-air, depending on the input material and local conditions.

Cleaning
and mixing

Drum screens, Multistar star screens and Flowerdisc disc separators seperate off contraries and noncompostable fractions. At windrow composting the material is mixed with structure material and screen oversize during the layered build-up with a wheel loader and homogenized in subsequent mixing with a turner.

Open or
closed

The input material and the associated limiting factors also decide for the rotting process whether it is conducted closed, i.e. in an indoor part of the system, or open as windrow composting. The first phase of the process often takes place in a closed system with vendilation and outlet air treatment.

Windrow
composting

Turning compost with a Topturn compost turner improves ventilation, enables re-watering and ensures mixing of the different rotting areas in the windrow. The process is generally complete after 6 to 12 weeks. 

Klassieren
durch Siebung

To attain a product of uniform particle size, and to separate off any contraries still present, the compost is screened. Komptech has a wide range of mobile and stationary drum and star screening machines for this process. The particle size produced is based on the intended use, ranging from coarse compost fractions for agriculture to finely screened material for mixing into garden and potting soil. 

Reinigung des
Überlaufs

Screening after composting generates a usable fraction and a screen overflow. The overflow can be run through a Hurrikan windsifter to remove the light components and then used as structure fill, or it can be used as biomass fuel once the stones have been removed by a Stonefex. 

References

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    Shredding

    Axtor

    High-speed shredder for green waste and wood

    • Diesel engine: 340-430 kW
    • Throughput: up to 310 m³
    • Mobility: Trailer, Track
    Diesel
    Mobile
    Mechanical drive

    Shredding

    Crambo mobile

    Low-speed dual-shaft shredder for wood and green waste

    • Diesel engine: 250-447 kW
    • Hydraulic drum drive
    • Mobility: Trailer, Track, Hook
    Diesel
    Mobile
    Hydraulic drive

    Shredding

    Crambo
    direct mobile

    Low-speed dual-shaft shredder for wood and green waste

    • Diesel engine: 250-447 kW
    • Mechanical drum drive
    • Mobility: Trailer, Track, Hook
    Diesel
    Mobile
    Mechanical drive

    Shredding

    Crambo stationary

    Low-speed dual-shaft shredder for wood and green waste

    • Electric motors: 160-280 kW
    • Hydraulic drum drive
    • Separated or combined design
    Electric
    Stationary
    Hydraulic drive

    Shredding

    Crambo
    direct stationary

    Low-speed dual-shaft shredder for wood and green waste

    • Electric motors: 160-280 kW
    • Mechanical drum drive
    • Combined design
    Electric
    Stationary
    Mechanical drive

    Shredding

    Crambo e-mobile

    Low-speed dual-shaft shredder for wood and green waste

    • Electric motors: 160-280 kW
    • Hydraulic drum drive
    • Mobility: Trailer, Track, Hook
    Electric
    Mobile
    Hydraulic drive

    Screening

    Drum screens stationary

    Drum screen with electric drive

    • Electric motor: 15-37 kW
    • Screening area: 22.5-86 m²
    • Drum length: 4.5-12 m
    Electric
    Stationary
    Mechanical drive

    Screening

    Multistar 2-SE

    Star screen with electric drive

    • Electric motor: 22 kW
    • Screening area: 7.2 m²
    • Max. throughput: 250 m³/h
    Hybrid
    Stationary
    Mechanical drive

    Implementation

    Topturn X

    Self-propelled turner for triangular windrows

    • Diesel engine: 151-310 kW
    • Windrow width: 4.5-6 m
    • Throughput: up to 5000 m³/h
    Diesel
    Mobile
    Hydraulic drive

    Screening

    Primus

    Drum screen with hydraulic drive

    • Diesel engine: 36 kW
    • Screening area: 16 m²
    • Mobility: Trailer
    Diesel
    Mobile
    Hydraulic drive

    Screening

    Maxx

    Drum screen with hydraulic or electric drive

    • Diesel engine: 55 kW
    • Screening area: 22.5 m²
    • Mobility: Trailer
    Diesel
    Mobile
    Hydraulic drive

    Screening

    Maxx E

    Drum screen with electric drive

    • Operation via power grid
    • Screening area: 22.5 m²
    • Mobility: Trailer
    Hybrid
    Mobile
    Mechanical drive

    Screening

    Nemus

    Drum screen with hydraulic drive

    • Diesel engine: 55-74 kW
    • Screening area: 30 m²
    • Mobility: Trailer, Semitrailer, Track
    Diesel
    Mobile
    Hydraulic drive

    Separation

    Hurrikan S

    Wind sifter with electric drive

    • Diesel generator: 55 kW
    • Max. throughput: 60 m³/h
    • Mobility: Trailer
    Electric
    Mobile
    Mechanical drive

    The Komptech plus

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