Construction projects across the EU are facing stricter environmental demands and tighter cost control. As a result, early-stage material handling strategies are central to project planning. In this context, the soil screening attachment has moved from a supporting role to a planning-critical tool.
Soil screening as a planning prerequisite
Soil is no longer treated as waste, but as a resource that is evaluated and reused wherever possible. This change is driven both by cost pressure and regulation. According to European Commission statistics, construction and demolition waste represents around 25–30% of total waste generated in the EU, making it a key area for efficiency gains.
As a consequence, soil screening has moved upstream in the project lifecycle. It is no longer a downstream activity, but an integrated part of early construction planning.
Efficiency gains from solution-oriented attachments
Today’s soil screening buckets are no longer single-function tools. Leading solutions are designed to perform multiple tasks simultaneously, screening, mixing, aeration, and fragmentation within one continuous process.
This solution-oriented approach aligns with how international manufacturers, such as ALLU, position their technology as integrated processing solutions rather than standalone attachments.
The operational outcome is clear:
- fewer process steps across the project lifecycle,
- reduced dependency on multiple machines and external processing
- and a more continuous and predictable material flow on-site.
How integrated screening and processing works on-site
A modern soil screening attachment processes material directly inside the bucket. Excavated soil does not need to be transported to a separate plant but is screened and conditioned immediately. This becomes relevant in European construction conditions, where soils often vary between sand, silt, and clay within the same site.
Technically, this is achieved through hydraulically driven rotating shafts equipped with screening elements. As the shafts rotate, they generate controlled mechanical agitation within the bucket, resulting in three primary processing effects.
Separation
Fine particles pass through defined screening gaps, while oversized material is retained within the bucket.
Fragmentation
Clumped or compacted soils are mechanically broken down into workable fractions during rotation.
Homogenization
Different soil types and particles are blended into a more consistent and uniform output material.
The mobile processing unit of ALLU
ALLU´s screener crusher bucket system use high-torque hydraulic drive systems designed for consistent rotation under load rather than high speed. The rotating shafts, fitted with interchangeable screening elements, actively process material, supporting reliable performance even in compact or heterogeneous soils.
ALLU screening bucket series
Across ALLU´s product series, the core technology remains consistent, based on hydraulically driven rotating shafts, interchangeable screening elements, and high-torque operation for continuous in-bucket processing.
D-Series
Designed for medium to large excavators and wheel loaders (typically 10–45 tonnes and above), with bucket capacities ranging from approximately 0.5 to over 4.0 m³. It is optimized for high-volume processing in infrastructure and large construction projects.
DL-Series
Targets mid-size carriers (around 4–12 tonnes), offering a balance between mobility and processing capacity, commonly used in urban construction and utility work.
DC-Series
Designed for compact excavators (2–6 tonnes), with smaller bucket volumes (approx. 0.1–0.3 m³), enabling screening and processing in confined or and small-scale projects.
Maintaining throughput under real site conditions
Complementing this approach, the ALLU screening buckets are optimized for maintaining productivity under variable conditions. Their design emphasizes continuous material flow. Rotating screening components create dynamic agitation, preventing clogging and ensuring that material is constantly exposed to the screening zone. This is particularly important in wet, cohesive, or mixed soils where traditional screening methods tend to lose efficiency.
Future outlook: smarter, cleaner, more adaptive
The next generation of soil screening attachments will build on this integrated approach. Electrification will drive more energy-efficient hydraulic systems, while automation will enable attachments to adjust screening parameters dynamically based on material input.
At the same time, EU sustainability targets will continue to push for higher material recovery rates. Attachments that can deliver cleaner, more consistent output fractions will play a critical role in meeting these goals.
What defines leading solution providers?
A quality soil screening solution integrates multiple functions, operates across carrier machines, is easy to maintain, and enables direct material reuse on-site. ALLU follows this approach by focusing on integrated, continuous material processing rather than fragmented steps.
Direct ROI drivers of ALLU’s soil screening attachment
- Lower total project costs
Reduced fuel, transport, disposal, and need for external processing. - On-site material reuse
Cuts material purchase costs by converting excavated soil into usable resource. - Fewer machines and process steps
Replaces multiple operations with one attachment, lowering CapEx and OpEx. - Reduced downtime and project risk
Maintains productivity and enables early decisions under variable soil conditions.