Waste Shredding and Secondary Fuel Production for Waste-to-Energy

The shredding of materials such as commercial waste, industrial waste, post-consumer waste, paper and plastics is a central component of modern waste recycling. Companies benefit from the efficient processing of these materials by recovering raw materials and significantly reducing the amount of waste. This leads to a sustainable circular economy and cost optimization in waste management.

About waste shredding
Waste Shredding and Secondary Fuel Production for Waste-to-Energy Waste Shredding and Secondary Fuel Production for Waste-to-Energy Waste Shredding and Secondary Fuel Production for Waste-to-Energy
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WEIMA offers high-performance waste shredders both as a stand-alone solution and as part of a multi-stage waste processing plant. With systems for pre- and post-shredding, continuous material processing can be guaranteed, which can be flexibly adapted to different requirements, for example for the production of refuse-derived fuels (RDF).

Learn more about waste shredding and production of refuse derived fuel (RDF) and solid recovered fuel (SRF)

Pre-shredding and secondary shredding of waste

Shredding industrial & commercial waste with WEIMA

WEIMA’s shredding solutions enable the conversion of commercial and post-consumer waste into refuse-derived fuel (RDF). These are not only recycled, but also used to generate energy to replace fossil fuels. In cement production in particular, RDF makes an important contribution to reducing the use of fossil fuels. This helps to reduce environmental pollution and create economic benefits.

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A green conveyor belt with shredded colorful post-consumer plastic with an orange shredder in the foreground

Post-consumer plastic after shredding with a WEIMA shredder at Stiphout Plastics

Customer applications: Waste shredding with WEIMA

Practical examples of successful waste processing with WEIMA shredders.
Shredding of industrial waste with a WEIMA PowerLine 2000 @Dekasan Bursa, Turkey
Efficient shredding of industrial waste with the WEIMA PowerLine 2000 at Dekasan in Bursa, Turkey. The powerful machine ensures reliable and sustainable waste recycling. Large quantities of industrial waste are efficiently converted into valuable recycling materials. The WEIMA PowerLine 2000 stands for innovative shredding technology and contributes to the optimization of waste management worldwide.”
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Shredding of industrial and municipal waste with a WEIMA S7.30 lift-up shredder in Korea
A WEIMA S7.30 lift-up single-shaft shredder with hydraulic drive from Hägglunds Bosch Rexroth shreds various types of waste for the production of substitute fuels at Daewon Recycling in Gimje, South Korea.
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Aerial view of an orange shredder shredding municipal waste at a recycling company in South Korea
MSW shredder WEIMA PreCut 2000 and PowerLine 2500 @Sungchang Energy
A WEIMA PreCut 2000 single-shaft shredder pre-shreds household waste. This is then post-shredded with a WEIMA PowerLine 2500 single-shaft shredder for the production of substitute fuel.
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Industrial waste shredding for refuse derived fuel production | WEIMA FineCut 3000 Shredder
A WEIMA FineCut 3000 single-shaft shredder with hydraulic drive shreds RDF waste at the cement plant in Gongju, South Korea.
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Textile shredding with a WEIMA PreCut 3000 @Tosung, South Korea
A powerful WEIMA PreCut 3000 single-shaft shredder shreds used textiles at Tosung in Chilgok, South Korea.
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RDF shredding with WEIMA: Efficient fuel processing

The shredding of waste to produce refuse-derived fuels (RDF) is a central component of modern recycling processes. RDF is produced from non-recyclable industrial and commercial waste and is often used in cement production and power plants. The cement industry has a high energy demand, which is increasingly covered by RDF. These fuels have a high calorific value and offer an environmentally friendly alternative to fossil fuels. They improve thermal utilization and increase the efficiency of clinker production in calciners, pre-burners and kilns.

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Efficient shredding of post-consumer waste

A crucial step in the recycling process is the shredding of post-consumer waste. WEIMA’s shredders enable the efficient processing of packaging, disposable products and other post-consumer materials. This waste is shredded to make it usable for recycling or the production of refuse-derived fuel (RDF). Shredding reduces the size of the material, which facilitates further processing and minimizes the amount of waste sent to landfill. This promotes the circular economy and reduces the use of raw materials.

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Bales of post-consumer plastics before shredding with a WEIMA shredder

Post-consumer waste before the recycling process

No mountain of waste too big

With WEIMA, waste can be efficiently processed for energy recovery using robust shredding solutions. This allows waste to be used as a substitute fuel in energy-intensive industries, which reduces the consumption of fossil fuels and protects the environment.

WEIMA also offers technologies for pre- and post-shredding that enable materials to be optimally prepared for recycling and energy recovery processes. This leads to a more sustainable use of resources and more economical waste recycling.

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Fire and flame for substitute fuel
The shredding of material streams forms the cornerstone of every recycling process. This is where industrial shredders come into play. With the PowerLine, PreCut and FineCut shredders, WEIMA demonstrates the potential of single and multi-stage waste processing.

From stand-alone shredders to complete waste processing plants

WEIMA offers shredders for every recycling task, adapted to individual requirements. In addition to stand-alone solutions, WEIMA also provides multi-stage system solutions in the form of complete systems. We are supported by an extensive supplier and service network that we have built up over the last few decades. This includes specialists in the fields of conveying technology, sorting, separation, screening technology, washing technology, metal detection, extrusion, heating and pelletizing. As a joint project team, we have implemented numerous successful projects worldwide and guarantee tailor-made solutions for every waste processing application.

Multi-stage waste shredding offers great advantages, especially for complex material flows. With the PreCut-seriesthe pre-shredding takes place, which prepares coarse materials to the appropriate size. The WEIMA PowerLine series ensures uniform shredding in the second stage before the WEIMA FineCut Shredder for secondary shredding. This process creates optimum conditions for the recycling or energy recovery of refuse-derived fuels (RDF). This ensures maximum efficiency and flexibility in waste processing.

WEIMA waste shredder | Pre-shredding, primary shredding & secondary shredding
PreCut series
Particularly robust shredding machines are required for the pre-shredding of waste fractions that are often heavily contaminated. With the PreCut series, you get a shredder that shreds material to a grain size of up to 400 mm.
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PowerLine series
The universal shredders in the PowerLine series can handle any type of waste, including contaminated materials from the post-consumer sector. The 800 mm diameter rotor is available with a hydraulic drive from Hägglunds or a high-torque drive from Baumüller.
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FineCut series
The WEIMA FineCut series is perfect for secondary shredding in multi-stage production lines. They process pre-shredded material at high rotor speeds and produce grain sizes between 15 and 150 mm.
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PreCut series
Particularly robust shredding machines are required for the pre-shredding of waste fractions that are often heavily contaminated. With the PreCut series, you get a shredder that shreds material to a grain size of up to 400 mm.
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PowerLine series
The universal shredders in the PowerLine series can handle any type of waste, including contaminated materials from the post-consumer sector. The 800 mm diameter rotor is available with a hydraulic drive from Hägglunds or a high-torque drive from Baumüller.
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FineCut series
The WEIMA FineCut series is perfect for secondary shredding in multi-stage production lines. They process pre-shredded material at high rotor speeds and produce grain sizes between 15 and 150 mm.
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Are you passionate about waste?

Frequently asked questions (FAQ) on waste recycling and refuse-derived fuels (RDF)
What is refuse-derived fuel (RDF)?

Refuse-derived fuel (RDF) is a fuel that is obtained from household, industrial and municipal waste. It is often used in cement, lime and coal-fired power plants and is processed using methods such as pre-sorting, pre-shredding, air separation and metal separation.

What is mechanical-biological waste treatment (MBT)?

Mechanical-biological waste treatment (MBT) processes household waste (MSW) and commercial waste similar to household waste. Organic and inorganic fractions are separated, with the coarse fraction being used as fuel in power plants.

What is Municipal Solid Waste (MSW)?

Municipal Solid Waste (MSW) refers to household or municipal waste that is collected by private or municipal waste service providers. Organic components are composted, while the rest is used as fuel.

What is Solid Recovered Fuel (SRF)

Solid Recovered Fuel (SRF) is a high-quality fuel produced from waste. It must meet strict European quality requirements and is divided into different quality classes according to calorific value, chlorine and mercury content.

What is pre-processing?

Pre-processing prepares waste before it is used in cement kilns. This includes shredding, mixing and drying the waste to achieve a uniform particle size. WEIMA shredders achieve a homogeneous material quality that meets the technical requirements of cement production. This guarantees the efficient production of refuse derived fuels (RDF) and supports the reduction of fossil fuels.

What are the advantages of co-processing in the cement industry?

Co-processing in cement production has many advantages: The high temperatures and long dwell time in the kiln also completely destroy toxic residues. There are no residues that need to be recycled or even disposed of. The use of co-processing technology also avoids the use of fossil fuels and consequently reduces greenhouse gas emissions. In addition, cement manufacturers can massively reduce their energy costs thanks to secondary fuels from waste.

Portrait of Erik Hagen, Sales Director at WEIMA
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Success stories

What our customers think
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a orange WEIMA WL20 shredder in a small hall, with an dust extractor behind

From Production Waste to Biomass Fuel

With plans to implement a waste handling facility, a luxury yacht manufacturer installed a biomass system to generate energy from their production waste. Consisting of mixed wood-based materials, including large sheets of skeletal waste from various CNC machining centres, they were looking to easily and effectively convert their waste into a uniform product, which could be easily transported and used within their biomass system.

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XXL Tilting Table for Insulation Boards Shredding at UNILIN

To achieve ambitious sustainability targets, UNILIN Insulation relies on a WEIMA WLK 1500 shredder at its site in Desselgem (Belgium) for shredding production scrap and waste from insulation board production. The distinctive feature is the hydraulic tilting table, that can feed panels up to 5.5 meters long into the shredder.

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Power(line) for SRF Production

The Binn Group, Scotland’s leading independent provider of integrated recycling and resource management solutions, shreds industrial waste with a WEIMA PowerLine 2000 for further processing into secondary fuel.

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Polish CEMEX cement plant relies on WEIMA

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LaFarge PowerLine Shredder

Cement production in the land of the Pharaohs

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Shredding industrial waste in Brittany, France

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PowerLine 2000 und 3000 bei Amey Cespa

For a Clean Environment

There is always rush hour on the AmeyCespa plant site – every single day. The activity is mainly caused by…

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Waste shredding protects resources in Indonesia

Recently, the company successfully inaugurated a modern recycling center in collaboration with its environmental technology partner Geocycle in Bogor near…

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