Smarter Preprocessing = Better Process Control
When materials arrive at a recycling facility in inconsistent conditions—wet, sticky, oversized, or bagged—they can clog screens, slow sorting, or damage equipment. Instead of reacting to these issues further down the line, facilities benefit from addressing them early on.
ALLU’s screening buckets combine screening, crushing, mixing, and aerating in one mobile step, enabling operators to preprocess materials efficiently. This allows for a steady feed and minimizes unplanned maintenance, resulting in smoother, more reliable operations. By proactively managing material flow, operators gain better process control, especially when handling unpredictable or varied material streams.
Insights from the Field
ALLU screening buckets are designed to adapt to different materials and applications through interchangeable drums and blade configurations. This flexibility allows processors to fine-tune how they handle waste—and the results speak for themselves.
- Soil Recycling Co. in Australia used the ALLU DN 3-12 with a TS Variable Drum as a pre-screening solution ahead of a trommel screen in a soil recycling project in Victoria. The ALLU bucket effectively broke down wet, clumped soil before it entered the trommel, preventing blockages and significantly reducing the need for cleaning. As a result, the trommel screen operated more efficiently, and overall system productivity increased by up to 20%. The mobile setup also reduced unnecessary transport and allowed for real-time adjustments on-site. Read the full case study →
- MRD Plant in the UK deployed an ALLU screening bucket to preprocess challenging materials such as asphalt, pulverized fuel ash (PFA), and mixed waste before further screening and processing. By conditioning the material in advance, the ALLU bucket helped reduce equipment wear and minimized downtime across the plant. The mobile setup enabled consistent feed and reliable sizing—key to keeping downstream operations running smoothly. Read the full case study →
Application Examples
Across different recycling contexts, preprocessing needs vary, but the core requirement remains the same: ensure materials are ready for efficient downstream handling.
- Waste Bag Opening – Bagged waste slows down operations and introduces contamination risk. The ALLU DH 3-17 with XHD blades efficiently opens bags and screens contents in one step, minimizing manual handling and keeping the process moving.
- Bio-Waste Composting – With drums like TS or TS Axe, ALLU D-Series buckets can crush, mix, and aerate organic waste in a single pass. This accelerates composting, improves material quality, and reduces the need for multiple machines.
- Foam Glass Processing – For applications requiring precise fragment sizing, such as foam glass, the DN 3-17 with TS 8 Axe configuration ensures reliable, consistent output, which is critical for reuse or resale.
Conclusion
Whether in municipal solid waste, bio-waste composting, or construction debris recycling, early-stage preprocessing sets the tone for the entire operation. By addressing material challenges at the start, facilities can improve throughput, reduce equipment wear, and avoid costly downtime.
ALLU has worked with recycling operators around the world to solve these challenges through mobile, adaptable solutions that streamline waste handling. With smarter preprocessing, operators gain better control, more consistent output, and a more efficient recycling process from start to finish.


