Efficient aggregate production

DTS Servizi SRL found a simpler way to process demolition waste in Sicily. By using the ALLU DN 3-17 TS 25 bucket, they now screen and separate material with just one machine - saving time, fuel, and effort on every job.
Case study

Efficient aggregate production

Sicily, Italy

Material Demolition waste, concrete, aggregates

Industry Construction, Manutention de déchets

Application Screening and material separation

Function Sorting fines and feeding oversize to crusher

Model ALLU DN 3-17 TS 25

Aggregate Screening in Sicily: Efficient Material Recovery with Fewer Machines

DTS Servizi Srl is a Sicilian based company with a focus on collection and transportation of hazardous waste materials. Materials resulting from demolition, construction sides are collected, transported and recovered into useful aggregates. Which further are used back in new construction projects as valuable sub-base or secondary raw materials. DTS Servizi offers safe and reliable operations to its customers.

DTS Servizi SRL found a simpler way to process demolition waste in Sicily.

The Challenge: Expensive operations

At DTS Servizi Srl finding the balance between smooth and economically cost-effective operations was important. At the same time maintaining quality and ease of operations.

  • Problem Overview:
    Too much equipment on site makes it expensive to run. In addition, due to different customer needs, the level of mobility to adjust was limited.
  • Impact:
    • High operational costs due large machinery.
    • Absence of mobility in operations when needed.
    • Expensive and long downtimes.

The Solution: ALLU Transformer Bucket

In the search of solution DTS Servizi got in contacted with ALLU dealer; ALMH SRL to try ALLU Transformer DN 3-17 TS 25.

The Result: Mobility at affordable cost

ALLU Transformer DN 3-17 TS 25 is sorting fines out of oversize aggregates at DTS Servizi yard. With ALLU customer can do his operation in one-step. Thus, a dump truck can be filled up with fines because of screening, and oversize is fed into mobile crusher. To happen in one-cycle.  By doing so customer is utilizing his excavator as a sorting plant. In return, this helps to keep the costs down when it especially comes down to fuel and maintenance.

Conclusion

The collaboration between DTS Servizi and ALMH highlights the value of effective problem-solving and productive communication between parties. The introduction of the ALLU DN 3-17 TS 25 bucket resolved a critical challenge, enhancing productivity and mobility at customer’s side. With such a solution DTS Servizi has become more agile in its focus and operations whilst keeping the level of quality.

Screening Bucket – D-Series

Carriers 6 – 45 t
Versatile DN-, DS- and DH-Series Screening Buckets serve in a wide range of applications ensuring high-quality material processing on-site.

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Asphalt Recycling

Asfalttikallio, Finland's largest asphalt contractor, processes recycled and cold milled asphalt efficiently with ALLU DS 3-23, setting new standards in material recycling.
Case study

Asphalt Recycling: Finland’s Largest Plant

Finland, Ylöjärvi

Material Recycled, cold milled asphalt

Industry Asphalte, Applications industrielles, Manutention de déchets

Application Asphalt Recycling

Function Quality control and processing of recycled asphalt for production

Model ALLU DS 3-23 with TS25 drum

As Finland’s leading asphalt contractor, Asfalttikallio sets industry standards with their advanced operations. Their Ylöjärvi facility showcases excellence in modern asphalt production, featuring a sophisticated setup with two drums, twelve aggregate feeds, and two recycled material feeds. This scale of operation demands solutions that can maintain high quality while processing significant volumes of recycled material.

Challenge:

When Asfalttikallio approached ALLU, they faced the complex task of efficiently processing recycled asphalt while maintaining strict quality standards. With recycled content making up between 30-60% of new mixes, precise material sizing and consistent quality were crucial for their production process. Most of their incoming recycled material arrives in blocks, with only about 10% being pre-milled, creating an additional processing challenge.

ALLU optimizes recycled material processing with ALLU DS 3-23. At their Ylöjärvi plant

Solution:

After evaluating Asfalttikallio’s needs, the ALLU DS 3-23 with TS25 drum emerged as the perfect fit for their operation. The screening bucket’s ability to handle both blocked and milled asphalt, combined with its precise sizing capability, made it ideal for their quality control requirements. Working directly at the plant site, the attachment transforms recycled asphalt through a streamlined process that maintains both efficiency and material quality.

  • Fill screener bucket with material
  • Screen to specification
  • Remove oversized material
  • Direct screened material to production
ALLU DS 3-23 to optimize recycled asphalt processing, transforming cold milled material into valuable resources

Operational details:

At the heart of Asfalttikallio’s recycling operation, the ALLU DS 3-23 processes thousands of tons of material each season. The screening bucket handles both milled asphalt with stone fragments under 16mm and bitumen material up to 50mm, achieving the required final product size of 25-35mm consistently. This precision is crucial as all road material specifications in Finland are tracked in a national database, demanding reliable quality control.

  • Process grinded asphalt (<16mm) and bitumen material (<50mm)
  • Achieve final product size of <25-35mm
  • Handle 3,000-4,000 ton batches
  • Maintain quality for database tracking
  • Process both milled and block material
Asfalttikallio, Finland's largest asphalt contractor, processes recycled and cold milled asphalt efficiently with ALLU DS 3-23

Benefits:

The implementation of ALLU’s solution has transformed Asfalttikallio’s recycling operation both operationally and financially. By reducing processing costs from €3 to €1 per ton, the screening bucket has proven its value in daily operations. Beyond the immediate cost savings, the ability to process material on-site and feed it directly into production has streamlined their entire operation.

  • Processing cost reduced from €3/ton to €1/ton
  • On-site material processing
  • Consistent quality control
  • Direct integration into production
  • Efficient material handling
  • Significant cost savings compared to mobile crushers

The success at Asfalttikallio’s Ylöjärvi plant proves that efficient asphalt recycling isn’t just possible – it’s profitable. With processing costs cut by two-thirds and consistent quality maintained, ALLU’s screening solution has proven its worth in one of the industry’s most demanding environments. As sustainability requirements grow and recycling becomes increasingly crucial, Asfalttikallio’s approach shows how the right equipment can transform challenges into opportunities.

For asphalt producers looking to boost recycling capabilities while controlling costs, the path forward is clear. ALLU’s screening solutions deliver the precision, efficiency, and reliability needed to turn recycled material into valuable product.

Screening Bucket – D-Series

Carriers 6 – 45 t
Versatile DN-, DS- and DH-Series Screening Buckets serve in a wide range of applications ensuring high-quality material processing on-site.

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Lime Screening for Kurdeez Minerals

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Quarry waste screening with the ALLU bucket

Efficient Quarry Waste Handling

ALLU DH3-23 TS35 transforms quarry waste into valuable resources. By efficiently separating stone and clay, larger stones are ready for resale, and fine materials are repurposed for road construction or…

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Limestone crushing with the ALLU screening bucket on a Hitachi excavator

Limestone Crushing with a screening bucket

Limestone crushing with a screening bucket on a Hitachi excavator: efficiently reduce 0-300 mm boulders to 0-90 mm for road construction.

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Plasterboard Recycling in Italy

Gyproc S.p.A. optimized plaster board waste processing by crushing, screening, and refining material directly on-site with the ALLU Transformer D-Series.
Case study

Transforming Plasterboard Recycling in Italy

Milan, Italy

Material Plasterboard waste

Industry Construction, Manutention de déchets

Application Waste recycling and material recovery

Function Crushing, screening, and refining plaster board waste for reuse

Model ALLU Transformer D-Series (DS 3-23 / 40 XHD)

Rethinking Gypsum Board Waste Management

Efficient waste processing is critical for industries dealing with large volumes of construction materials, and Gyproc S.p.A., part of the Saint-Gobain Group, faced this challenge on a major scale. With three production plants across Italy—Asti, Rimini, and Guglionesi—the company generates between 1,000 to 5,000 m³ of plaster board waste per month.

Traditional waste handling methods were proving inefficient and costly, prompting the company to look for a more sustainable and cost-effective solution to process plaster board waste directly on-site.

Gyproc S.p.A. optimized plaster board waste processing by crushing, screening, and refining material directly on-site with the ALLU Transformer D-Series.

The Challenge: High Maintenance and Operating Costs of Traditional Crushing

At Gyproc’s Milan headquarters, the company relied on a REV crusher already available on-site. However, this approach came with several drawbacks:

  • High maintenance and operating costs – The stationary crusher required frequent servicing, increasing overall expenses.
  • Additional machinery required – A separate excavator was needed for loading, adding fuel and labor costs.
  • Limited flexibility – The fixed crushing system meant additional handling time and transport logistics.

With increasing waste volumes, Gyproc needed a solution that was mobile, efficient, and cost-effective, without compromising processing quality.

Gyproc S.p.A., part of the Saint-Gobain Group, needed a cost-effective way to crush and screen large volumes of plaster board waste without relying on high-maintenance crushers.

The Solution: ALLU Transformer D-Series – A Mobile, One-Step Approach

To replace the high-maintenance stationary crusher, Gyproc introduced the ALLU Transformer D-Series, specifically the DS 3-23 / XHD 40 equipped with long hammers on the center drum, mounted on their Volvo L110G wheel loader.

This upgrade enabled crushing, screening, and refining of plaster board waste in a single operation, eliminating the need for a separate crushing unit. With the ALLU D-Series, Gyproc:

  • Reduced equipment needs – The wheel loader handled both processing and loading, eliminating the need for an additional excavator.
  • Lowered operational costs – Fewer machines running meant significant savings on fuel, labor, and maintenance.
  • Increased efficiency – Waste was processed directly on-site, reducing handling time and transport needs.
Plasterboard Recycling in Italy

The Results: Faster Processing, Cost Savings, and a Quick ROI

To validate the efficiency of the ALLU D-Series, Gyproc conducted a two-day trial, testing both capacity and final product quality. The results demonstrated clear benefits:

The company previously spent €16,000 per month on the REV crusher, including maintenance and additional operating costs. The ALLU Transformer purchase cost was recovered in approximately six months, making it a highly cost-effective solution. Additionally, with the wheel loader now handling both processing and loading, Gyproc no longer needed an extra excavator, further streamlining operations.

This more efficient and mobile approach helped Gyproc improve material recovery, reduce costs, and simplify its waste processing workflow.

Expanding the Success Across Italy

Following the success of the ALLU D-Series screening bucket, similar setups were adopted by multiple companies across Italy, including:

  • Gessi del Lago d’Iseo (GR) – DS 3-23 / 40 XHD
  • Knauf Interni (PI) – DN 3-17 / X75
  • Biondi Srl (PG) – SC 3-15 / 35 XHD
  • Lafarge Gessi Spa (AQ) – DS 3-23 / 40 XHD
  • Gyproc (Saint-Gobain Group, Milan) – DS 3-23 / 40 XHD

The introduction of the ALLU Transformer D-Series at Gyproc’s Milan plant set a new benchmark in waste management, proving that mobile, on-site processing can replace high-maintenance crushers while delivering significant cost savings.

Looking Ahead: Smarter Waste Processing for a More Efficient Future

With the success of the ALLU D-Series, Gyproc has demonstrated that on-site waste processing is more efficient, cost-effective, and sustainable. By investing in mobile screening technology, they have optimized their production workflow, reduced their environmental footprint, and set a new standard for smarter material handling in the gypsum industry.

➡ Looking for a more efficient way to process construction waste? Discover how ALLU can transform your operations.

Screening Bucket – D-Series

Carriers 6 – 45 t
Versatile DN-, DS- and DH-Series Screening Buckets serve in a wide range of applications ensuring high-quality material processing on-site.

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Godet concasseur ALLU pour criblage de matériaux

BAURECYCLING LEICHT GEMACHT

Transporting waste from a construction site to a waste center increased costs due to transportation and material purchases.

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Pipeline padding in Sweden

See how NCC optimized pipeline padding in Öland with ALLU screening buckets, transforming on-site material handling while reducing costs and environmental impact.
Case study

Pipeline padding in Sweden

Öland, Sweden

Material Excavated soil for backfilling

Industry Remblai de canalisations

Application Pipeline padding and backfilling

Function Screening and reusing excavated material for pipeline backfill

Model ALLU DS4-12 and DN3-12 screening buckets

Transforming Pipeline Projects in Sweden’s Island Community

In a residential area on Öland, Sweden, a pipeline renewal project demonstrated how modern approaches to material handling can reshape traditional construction methods. NCC, working with their subcontractor Schakt & Transport, tackled a water pipeline upgrade that would typically involve significant material transport logistics and associated costs.

a pipeline renewal project demonstrated how modern approaches to material handling can reshape traditional construction methods.

Rethinking Pipeline Construction

NCC, one of the leading construction and infrastructure companies in Northern Europe, partnered with local contractor Schakt & Transport for this residential pipeline project. With operations across Sweden, Norway, Denmark, and Finland, NCC brings extensive experience in infrastructure development. Their commitment to sustainable construction practices made them particularly receptive to innovative solutions for this Öland project.

In conventional pipeline projects, contractors often face a significant challenge: excavated material needs to be transported away while new backfill material must be brought in. This creates a complex logistical operation involving multiple trucks, increased traffic in residential areas, and substantial material costs. Drawing on their extensive experience in infrastructure projects, NCC’s team recognized an opportunity to approach this differently.

pipeline padding project in Sweden

A Tailored Two-Bucket Solution

The project utilized two ALLU screening buckets, each serving a specific purpose in the operation. The larger DS4-12 bucket handled the main pipeline trenches, processing larger volumes of material efficiently. For the more intricate work around service connections and narrower trenches, the DN3-12 provided the precision and maneuverability needed. This dual-bucket approach ensured that every aspect of the project could be handled with maximum efficiency.

From Challenge to Opportunity

Instead of treating excavated soil as waste that needed to be removed, the team repurposed it into a valuable resource. The ALLU screening buckets processed this material on-site, creating backfill that met all technical specifications. This approach eliminated the need for purchasing and transporting new aggregate, while ensuring that the backfill material maintained consistent quality throughout the project.

Beyond Cost Savings

While the immediate financial benefits were significant, the project’s impact extended far beyond the budget. The residential community benefited from reduced construction traffic, as fewer trucks needed to access the site. The environmental footprint of the project was substantially reduced, both in terms of material usage and transport emissions. The streamlined operation also meant faster project completion times, minimizing disruption to local residents.

Setting New Standards

The success of the Öland project demonstrates how innovative approaches to material handling can transform pipeline construction. By choosing the right equipment and rethinking traditional methods, contractors can achieve better results while reducing costs and environmental impact. The combination of ALLU’s versatile screening technology and thoughtful project planning proved that sustainable practices and operational efficiency can go hand in hand.

Key Project Benefits:

  • Significant reduction in material and transport costs
  • Minimal environmental impact through material reuse
  • Enhanced project efficiency with optimized equipment selection

Looking Ahead

For contractors in pipeline construction, ALLU Transformer screening buckets provide a smarter, more cost-effective way to handle material on-site. Instead of hauling excavated soil away and paying for new backfill, they allow teams to process and reuse existing material directly in the trench, cutting costs and streamlining operations.

With the ALLU DS4-12 and DN3-12, NCC and Schakt & Transport completed the project without the need for external material deliveries, reducing truck traffic, fuel consumption, and overall project expenses. A practical solution that keeps the job moving efficiently while making the most of available resources.

Screening Bucket – D-Series

Carriers 6 – 45 t
Versatile DN-, DS- and DH-Series Screening Buckets serve in a wide range of applications ensuring high-quality material processing on-site.

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Pipeline Padding in France

Excavated material unrefined cannot be used to backfill for pipeline padding. The customers costs were increasing to remove the material and bring in correct material to site.

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Harsco Metals: Slag Processing

By efficiently screening and removing metal rebars and oversized contaminants, Harsco minimizes conveyor belt damage, reduces downtime, and repurposes slag into valuable materials for construction and road applications.
Case study

Harsco Metals: Slag Processing with ALLU

Laverton, Melbourne, Australia

Material Slag with embedded metal rebars and oversized contaminants

Industry Construction, Manutention de déchets

Application Slag processing and material screening

Function Screening slag, separating contaminants

Model ALLU DN 2-12, ALLU DH 3-17 with X75 drums

Harsco Metals and ALLU – A Partnership for Operational Excellence

Harsco Environmental is a global leader in providing sustainable solutions for the steel and metals industries. At its Laverton branch in Melbourne, Australia, the team specializes in slag processing, repurposing industrial byproducts into valuable products like aggregates for the road and civil industries. However, recurring operational challenges threatened efficiency and productivity, prompting the need for an innovative solution.

The Challenge: Conveyor Belt Tearing

At Harsco’s Laverton branch, the conveyor belts were frequently damaged during slag processing. The issue arose from the fact that the slag collected from the caster pit contained metal rebars and other oversized contaminants that were not effectively screened out using the existing equipment. These materials were not properly filtered using a skeletal bucket, leading to sharp items damaging the downstream conveyor belts during transfer to the crushing line. This caused increased downtime due to frequent maintenance, high operational costs from repairs and inefficiencies, as well as safety risks and disruptions in the overall slag processing operations.

Impact:

  • Increased downtime due to frequent maintenance.
  • High operational costs from repairs and inefficiencies.
  • Safety risks and disruptions in slag processing.

The Solution: ALLU Transformer Bucket

Recognizing the need for a more efficient and robust screening solution, Harsco Metals’ maintenance team contacted Walkers Hammers, the ALLU dealer in Melbourne, Victoria.

  • Site Study and Demo:
    On 12th April 2024, Sami Rahman, ALLU area sales manager conducted a site study and recommended the ALLU DN 2-12  Transformer bucket with specialized X75 drums. Carlo Costanzo, Walkers Hammers’ service technician, prepared the equipment by fitting a head bracket for a CAT excavator.
  • Key Stakeholders at the Demo:
    The demo was attended by General Manager Andrew Hayes, site supervisor Nazz, and Dan from the maintenance team. The ALLU bucket demonstrated its ability to screen slag efficiently, removing metal rebars and oversized contaminants while protecting downstream equipment.
  • Extended Testing:
    Impressed by the demo, Harsco Metals rented the ALLU DN 2-12 bucket for two weeks to test it with their operators across multiple shifts. This ensured operator familiarity and confidence in the equipment’s performance.

The Result: Quick Decision and Seamless Delivery

At the conclusion of the rental period, Walkers Hammers presented a sales offer tailored to Harsco’s needs.

Bucket Selection:
Considering the continuous-duty operation and need for a robust solution, the ALLU DH 3-17 with X75 drums was proposed.

  • Features:
    • Two hydraulic motors for enhanced torque.
    • Heavy-duty frame for durability in demanding conditions.
    • X drums with Changeable blades  to easily replace when they wear out

Approval and Delivery:
Harsco’s management swiftly approved the purchase, thanks to the proven performance during trials and Walkers Hammers’ prompt service. The equipment was ordered and delivered in July 2024, ensuring minimal disruption to operations.

Conclusion: A Partnership for Productivity

The collaboration between Harsco Metals and Walkers Hammers highlights the value of effective problem-solving and reliable dealer support. The ALLU DH 3-17 bucket not only resolved a critical challenge but also set new standards for efficiency, productivity, and sustainability in the metals recycling industry.

With ALLU’s robust solution and the dealer network’s readiness, Harsco Metals reinforced its commitment to operational excellence and sustainable processing—setting a benchmark for efficiency in the metals recycling industry.

Timeline:

  • April 2024: Problem identified and demo conducted.
  • April–May 2024: Two-week rental period for extended testing.
  • July 2024: Delivery and implementation of the ALLU DH 3-17 bucket.

Screening Bucket – D-Series

Carriers 6 – 45 t
Versatile DN-, DS- and DH-Series Screening Buckets serve in a wide range of applications ensuring high-quality material processing on-site.

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ALLU helped Kurdeez Minerals improve their lime screening process

Lime Screening for Kurdeez Minerals

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Limestone Crushing with a screening bucket

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Recycling of Asphalt: ALLU & MRD Plant

MRD Plant uses ALLU screening buckets to recycle asphalt, PFA, and more—cutting costs and boosting productivity on-site.
Case study

Recycling of Asphalt, PFA, and More: ALLU & MRD Plant

Leicestershire, United Kingdom

Material Asphalt, Pulverised Fuel Ash (PFA), Road Planings

Industry Asphalte, Manutention de déchets

Application Recycling

Function Cost-Effective Processing, On-Site Recycling

Model ALLU DH 4-17 and DS 3-23

COST EFFECTIVE CRUSHING
ALLU screening buckets transform contract crushing & screening business

When Leicestershire-based MRD Plant, which provides nationwide services to the UK recycling, construction, quarrying & mining sectors, first invested in a second-hand ALLU screening bucket just over a year ago, they quickly realised the benefits of this innovative Finnish-manufactured hydraulic attachment. Since then, they have added three new models to their machinery fleet, all supplied by dealers Blue Group.

“The ALLU screening bucket is so much more efficient, productive and less expensive than bringing a mobile crushing plant on to the work site…”

They were initially attracted to the ALLU DS 3-23 screening bucket after securing a series of relatively small crushing and screening contracts, as it was more cost-effective for their clients than employing an expensive mobile crusher on the job site. Earlier this year, they took delivery of a brand-new ALLU DH 4-17 model, primarily to process asphalt road planings that would otherwise end up in a landfill.

MRD Plant’s Managing Director, Tom Chapman, has nothing but praise for the ALLU transformer buckets, which can screen, crush, pulverize, mix, and separate a wide range of materials. If the material is particularly wet or dirty, they are far more efficient at processing it than a standard mobile screener.

Using the machine’s hydraulic system, the ALLU screening buckets—virtually converting your excavator or loading shovel into a mobile processing plant—are user-friendly and allow for quick attachment, ensuring easy control and operation. With interchangeable blades and spacings of various sizes, you can easily adjust the particle size to meet the different requirements of job sites.

“In many cases, an ALLU screening bucket is much more efficient, productive, and less expensive than transporting a mobile crushing plant to the work site. That’s something we began to realize when we invested in that second-hand model last year. Some of the contracts we secure now involve processing just a few hundred tonnes of material over a couple of days, and it would have been inefficient to set up a standard mobile crusher on-site.

Had we done that, we would still have to use a loading shovel to feed the crusher. The fact that we can fit an ALLU screening bucket to the shovel means we are literally halving our fuel costs and using less labour on-site,” said Tom. “As a result, we can pass those cost savings on to our clients, which they appreciate.”

The ALLU DH 4-17 screening bucket, one of the largest in the D-Series range, is specifically used by MRD Plant to process road planings. However, it can also screen and separate various other materials, including different soil types, sand, gravel, topsoil, compost, demolition waste, biomass, processing, and products of different fractions. This makes the D-Series suitable for various applications, including construction, excavation, recycling, landscaping, and agriculture.

DOING MORE FOR LESS


More or less permanently fitted to a 35-tonne Hitachi Zaxis 350-7 excavator, the ALLU DH 4-17 screening bucket is in constant use.

« It essentially does the same job for less than a top-of-the-range mobile crusher, »

added Tom, who established MRD Plant in 2022 after working alongside his father in a similar business before it was sold in 2019.

Tom Chapman, Managing Director, MRD Plant

« Apart from the versatility of the ALLU screening buckets, I was also attracted to them because of their simplicity. They are easy to use and much easier to maintain compared to a standard mobile crusher. Plus, being fitted to an excavator or loading shovel, they enable us to access restricted sites where we might not be able to bring in a separate crusher unit. »

The other three ALLU buckets in the MRD Plant crushing and screening division are fitted to two JCB loading shovels and a smaller Hitachi excavator. They are easily interchangeable to suit various applications. One of the ALLU transformer buckets has been used to break up and screen Pulverised Fuel Ash (PFA), also known as fly ash, which can then be partly used as a cement substitute in the manufacture of concrete blocks. Extremely wet PFA would be impossible to screen using a conventional mobile screener, and this material would normally end up going to landfill.

In just a few short years, Tom Chapman has built MRD Plant into a successful and growing contract crushing and screening operation that can take on projects ranging from small-scale work to larger, long-term contracts. In addition to the ALLU buckets, he currently operates two mobile crushers, three excavators, and five loading shovels.

PLANT HIRE DIVISION


The business also includes a plant hire division with an expanding fleet of excavators, loading shovels, mobile jaw crushers, and screeners, all available on either an operator or self-drive rental basis.

The plant hire division also offers a variety of ALLU transformer buckets, which are not only limited to aggregate processing but can also be used to meet the requirements of almost any application—from pipeline filling and compact soil processing to highway construction and asphalt recycling. These buckets serve a range of sectors, including quarrying and mining, and wood chip & biomass production.

Since starting the company, Tom has enjoyed a highly successful working relationship with both Blue Group and ALLU.

« They have been very supportive and have put in a lot of effort to ensure we have screening buckets that work for us, especially with the DH 4-17, which we primarily use for processing asphalt. Any issues or queries we have are dealt with promptly and efficiently, and we look forward to building on that relationship going forward. »

Credit: Originally published by The Awesome Earthmovers Magazine

For more information, visit: https://blue-group.com/products/screening-buckets/

Screening Bucket – D-Series

Carriers 6 – 45 t
Versatile DN-, DS- and DH-Series Screening Buckets serve in a wide range of applications ensuring high-quality material processing on-site.

Other case studies

We solve problems

ALLU helped Kurdeez Minerals improve their lime screening process

Lime Screening for Kurdeez Minerals

Kurdeez Minerals improved their lime screening process by incorporating the ALLU DH3-17 TS 25 with double TS50 Axe blades. This change helped break down lime lumps, streamline material flow, and…

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Processor Allu stabilisant des routes

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Quarry waste screening with the ALLU bucket

Efficient Quarry Waste Handling

ALLU DH3-23 TS35 transforms quarry waste into valuable resources. By efficiently separating stone and clay, larger stones are ready for resale, and fine materials are repurposed for road construction or…

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Limestone crushing with the ALLU screening bucket on a Hitachi excavator

Limestone Crushing with a screening bucket

Limestone crushing with a screening bucket on a Hitachi excavator: efficiently reduce 0-300 mm boulders to 0-90 mm for road construction.

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BonnyView and ALLU the perfect partners

See how BonnyView Quarries in NSW improves efficiency and reduces costs with ALLU DH4-23 XHD25 screening buckets for soil stabilization and material processing.
Case study

BonnyView and ALLU the perfect partners

NSW, Australia

Material Topsoil, blacktop, dirt, excavated and waste soil, clay, peat, bark

Industry Construction, Mining, Quarrying

Application Mining, quarrying, material processing

Function Screening, crushing, mixing, separating and loading materials

Model DH4-23 XHD25

BonnyView and  ALLU the perfect partners

When mine and quarrying veteran Len Hardy decided he needed two “big” new buckets for his of Bonnyview Quarries business in NSW, he knew exactly what brand he wanted and where to turn to when he wanted to buy them.

Having used a number of smaller ALLU buckets on his excavators over the years, Len had his eyes on a pair of ALLU DH4-23 XHD25 screening buckets to take on the bigger jobs and provide additional versatility to his operation, which supplies customers right across NSW.

Built by Finnish private limited company ALLU Finland Oy, the ALLU screen crushers are highly versatile and the ideal tool for creating material such as road base and building materials.

According to Len, they are the perfect fit for his business.

“They are the best constructed buckets for the applications we use them for. They are really well engineered and provide a very reliable performance,” he said.

“The two new buckets we acquired are performing really well and we couldn’t be happier.”

Len is just as high in his praise for local ALLU support distributors in Australia, with whom he has had a lengthy relationship.

“RDW group are a very, very, good company to deal with. They are great suppliers and will always come up with what you want,” he recently told Australian Mining Review.

RDW group has been the Australian importer and distributor for ALLU for around four years. distributing the product through a nation wide network, servicing major infrastructure projects including water and gas , however, the versatile ALLU system is quickly making inroads with civil and composting contractors.

Sales Area Manager in Rockbreakers Queensland, Craig Einam, said ALLU bucket applications and  installations continue to grow and develop each year.

The versatility  of the buckets to be fitted to 5T – 80T excavators and larger style loaders makes them particular popular with quarry operators like Len, while the smaller buckets are also effective on skid steer loaders.

About the ALLU Screener Crusher

With the ALLU Screener Crushers you can screen, crush, pulverise, aerate, blend, mix, separate, feed and load materials all in one stage.

The versatile accessory can process many types of material such as topsoil, black top and dirt, excavated and waste soil, contaminated soil, clay, peat, bark, compost, biowaste, demolition waste, construction waste, milled asphalt, glass, coal, oil shale, limestone and several other materials.

The versatility of the highly efficient ALLU screening buckets can also mean big savings for their users as they no longer need to bring both a wheel loader/excavator and a crusher on site. Instead, this is a bucket which screens, crushes, pulverises, aerates, blends, mixes, separates, feeds and loads materials.

ALLU has the widest range of screening buckets and screener light crushers on the market. The units fit for almost any base machine size starting from the most compact ALLU DL Series to the massive ALLU M Series that will fit up to 160 tonnes excavator.

The DH4-23 XHD25 screening buckets are part of the impressive ALLU Transformers range which are purpose built for efficient material processing by reducing the number of process steps needed and transforming waste into useable material.

With the ALLU Screener Crushers you can screen, crush, pulverise, aerate, blend, mix, separate, feed and load materials all in one stage.

Mining applications

Efficient material flow is a key issue in any mining operation, power plant, bulk harbour and bulk material or storage area.

ALLU Transformer Screener Buckets mounted on an excavator improve efficiency in material processing due to work speed and reach which results in almost double the processing capacity compared to a slow-moving wheel loader as a carrier.

With ALLU’s Screener technology, existing loaders and excavators can be converted into effective processing, sorting and screening equipment due to the ALLU Transformers ability to deliver a one-step screening and loading solution capable of handling all materials from wet soils to coal and softer rock materials.

This helps improve efficiencies through less chute blockages and also reduces the need for buffer storage areas and transportation of material heaps that are clogged due to moisture or contamination.

When looking at a project with a holistic approach given multiple equipment mobilisations, fuel costs and cost to process in low margin return Ore reclaiming projects etc.

ALLU Case studies have shown between $1.50-$2.50 per tonne savings in running costs in comparison to multiple unit processing configurations.

The ALLU Transformer M series of buckets for mining applications suit 50 to 160 tonne excavators and 30-90 tonne wheel loaders. To meet the specific needs of each application – a range of blade and drum sizes are available to provide fragment sizes of 50, 75, 100 and 150mm.

Dealer Network Servicing the country.

All the ALLU distributors are well known across Australia as suppliers of an extensive range of leading European and Australian manufactured excavator and skid steer attachments, such as those from ALLU.

They have a strong focus on ensuring the  customers are using the right attachment for the task – ensuring it is not only safer, but also helps reduces downtime, lower operating and lifetime ownership costs and – most importantly – helps them reduce the cost per tonne of material moved.

When a full turn-key solution, integration or varied application for equipment is required,  the network have it covered,  engineering and project management resources have proven record of delivering innovative, high-quality and cost-effective solutions to optimise your operations.

Australian ALLU dealer network:

QLD Rockbreakers in QLD and NT:

rdw.com.au/qld-rock-breakers

Walkers Hammers in VIC:

walkershammers.com.au

Total Rockbreaking Solutions in WA:

totalrockbreaking.com.au

Screening Bucket – D-Series

Carriers 6 – 45 t
Versatile DN-, DS- and DH-Series Screening Buckets serve in a wide range of applications ensuring high-quality material processing on-site.

Other case studies

We solve problems

ALLU helped Kurdeez Minerals improve their lime screening process

Lime Screening for Kurdeez Minerals

Kurdeez Minerals improved their lime screening process by incorporating the ALLU DH3-17 TS 25 with double TS50 Axe blades. This change helped break down lime lumps, streamline material flow, and…

Explore customer story

Processor Allu stabilisant des routes

Explore customer story
Quarry waste screening with the ALLU bucket

Efficient Quarry Waste Handling

ALLU DH3-23 TS35 transforms quarry waste into valuable resources. By efficiently separating stone and clay, larger stones are ready for resale, and fine materials are repurposed for road construction or…

Explore customer story
Limestone crushing with the ALLU screening bucket on a Hitachi excavator

Limestone Crushing with a screening bucket

Limestone crushing with a screening bucket on a Hitachi excavator: efficiently reduce 0-300 mm boulders to 0-90 mm for road construction.

Explore customer story

Soil Stabilization

Explore how the Nordic Dry Deep Mixing method enhances soil stability without water, featuring ALLU's PF 7+7 NextGen feeder.
Case study

Soil Stabilization with Nordic Dry Deep Mixing Method

Finland

Material Lime-cement mix

Industry Construction, Soil Stabilisation

Application Soil stabilization in roadworks

Function Improving soil stability without added water

Model ALLU PF 7+7 NextGen Feeder

Why Add Water When It Isn’t Necessary? A Practical Solution for Soil Stabilization in Nordic Roadworks

In the realm of construction, challenges posed by soft or unstable soils can be daunting. However, innovative techniques such as Nordic Dry Deep Soil Mixing (NDDM) offer reliable solutions without unnecessary complexity. This method demonstrates its value by improving soil stability and strength without the excessive use of water—an approach both efficient and environmentally considerate.

Project Overview: Foundation Preparation with Precision

A recent roadworks foundation project in the Nordic region highlighted the practical application of NDDM. The project scope included the construction of 12,000 soil-stabilizing columns, each reaching a depth of 10 meters (32 feet) with a diameter of 600 mm, collectively spanning an impressive total length of approximately 120 kilometers (74 miles).

Using a lime-cement mix as the binder, 40 kilograms (88 pounds) were applied per meter of each column. The outcome was a durable foundation capable of withstanding demanding load-bearing conditions.

Equipment in Action: Reliable Tools for Reliable Results

The success of the project hinged on the integration of robust equipment:

  • ALLU PF 7+7 NextGen 10 Bar Pressure Feeder: Ensuring consistent and precise delivery of dry binders deep into the ground.
  • MOVAX MSL-300 Column Stabilisation Leader: An excavator-mounted tool designed for the efficient creation of stabilization columns.

This combination provided seamless operation, even in the most demanding soil conditions, ensuring the job was completed with precision and reliability.

Explore how the Nordic Dry Deep Mixing method enhances soil stability without water, featuring ALLU's PF 7+7 NextGen feeder for precise and efficient foundation construction.

Why Choose Dry Over Wet Stabilization?

Nordic Dry Deep Mixing sets itself apart from traditional methods by omitting the need for added water, a factor that significantly simplifies the process. Some notable advantages include:

  1. Environmental Considerations
    By reducing water usage, NDDM minimizes the risk of runoff and contamination, particularly in regions with high groundwater levels. This makes it a preferred choice for environmentally sensitive areas.
  2. Enhanced Precision
    Dry binders allow for controlled application, ensuring uniform strength and stability, even in soils with varying properties like clay or peat.
  3. Faster Results
    Dry binders typically achieve the desired strength more quickly than their wet counterparts, shortening project timelines and reducing waiting periods for curing.
  4. Suitability for Difficult Conditions
    In saturated or clay-rich soils, where water-based methods may fail due to dilution, NDDM excels by providing consistent results.
  5. Reduced Complexity
    With no added water, there’s no need for managing slurry or dealing with excess waste, streamlining logistics and cutting down on ancillary costs.

A Method Rooted in Practicality

The Nordic Dry Deep Mixing method isn’t just about achieving technical excellence; it’s about approaching projects with care and foresight. By avoiding the unnecessary addition of water, this method prioritizes efficiency and environmental responsibility.

For the foundation project in question, the combination of NDDM and ALLU’s PF 7+7 NextGen feeder exemplified how precision equipment and proven methods can align to create lasting infrastructure. The resulting columns are a testament to how carefully planned construction can address even the most challenging soil conditions.

ALLU PF Pressure Feeder

The double tank ALLU Pressure Feeder PF 7+7 NextGen allows for continuous feeding and precise dosing of dry binders in soil improvement projects.

Other case studies

We solve problems

ALLU helped Kurdeez Minerals improve their lime screening process

Lime Screening for Kurdeez Minerals

Kurdeez Minerals improved their lime screening process by incorporating the ALLU DH3-17 TS 25 with double TS50 Axe blades. This change helped break down lime lumps, streamline material flow, and…

Explore customer story

Processor Allu stabilisant des routes

Explore customer story
Quarry waste screening with the ALLU bucket

Efficient Quarry Waste Handling

ALLU DH3-23 TS35 transforms quarry waste into valuable resources. By efficiently separating stone and clay, larger stones are ready for resale, and fine materials are repurposed for road construction or…

Explore customer story
Limestone crushing with the ALLU screening bucket on a Hitachi excavator

Limestone Crushing with a screening bucket

Limestone crushing with a screening bucket on a Hitachi excavator: efficiently reduce 0-300 mm boulders to 0-90 mm for road construction.

Explore customer story

Soil Recycling in Australia

Explore how Soil Recycling Co. improved soil management with ALLU’s DN 3-12 TS 25 Axe bucket, enhancing efficiency in recycling practices.
Case study

Soil Recycling Management in Australia

Victoria, Australia

Material Soil

Industry Agriculture, Landscaping, Recyclage, Soil Remediation

Application Soil Screening and Recycling

Function Screening, Crushing, Aerating

Model DN 3-12 TS 25/50 Axe Variable Drum

Soil Recycling Co. is at the forefront of soil screening in Australia, dedicated to promoting the reuse of soil as a valuable resource rather than disposing of it in landfills. This innovative company specializes in soil handling and recycling, collaborating with major waste management firms like ResourceCo to transform organic waste into usable products such as soil mixes for gardening and landscaping. Currently, Soil Recycling Co. is working at the South Gippsland Highway, Hampton Park in Victoria.

Founded in 2012, Soil Recycling Co. emerged from a passion for soil and organics, recognizing the inefficiencies in how materials were handled. The company saw countless trucks transporting soil and organic materials, only for them to return to the site soon after. This inefficiency sparked the mission to make onsite resources usable, eliminating unnecessary transport and fostering sustainable practices in the industry.

Chris Keay, the Director of Soil Recycling Co.

When Chris Keay, the Director of Soil Recycling Co., faced the challenge of processing wet, clumped soil that affected the performance of the Terex Ecotec Trommel, he recognized the necessity for a more effective solution. Two main issues arose due to the damp and wet soil:

  • Less aerated soil resulted in clumps clogging the hopper and Trommel.
  • The operator, Craig Jameson, had to clean the trommel multiple times a day, leading to significant downtime and fatigue, thus affecting productivity.

Initial attempts with another type of screening bucket featuring outdated drum technology failed to break down the lumps and dense soil, resulting in clogging and drastically reduced production. In search of a more reliable option, Chris Keay reached out to Walkers Hammers on September 16th, 2024, and discovered the innovative screening solutions from ALLU.

After reaching out to Walkers Hammers, Chris was introduced to Sami Rahman, the ALLU area sales manager based in Melbourne, Victoria. Together, they identified the ALLU DN 2-12 with TS 25 Axe as the optimal bucket for the demo. Sami, along with Carlo Costanzo from Walkers Hammers, prepared the rental bucket for a demonstration scheduled for September 17th. Upon arriving at the site, it became clear why the Trommel Screener had been struggling; persistent rain had saturated the soil, complicating the processing.

Once installed on the Hidromek excavator, the ALLU bucket quickly demonstrated its capabilities. The unique TS drum setup, designed for anti-clogging, optimal flow and self-cleaning, allowed for effective processing, leading to significant improvements in output. Impressed by its performance, Chris decided to keep the rental bucket for ongoing use, ensuring he had the right equipment to tackle his challenges effectively.

To further enhance productivity, the decision was made to switch from TS 25 to TS 50 blades, allowing for better fragmentation of larger soil lumps. Carlo from Walkers Hammers took the bucket back for the blade change, although it could have been done onsite. The bucket was delivered the next day with the blades changed to TS 50, ready for action.

Operational Highlights:

September 18: ALLU bucket installed in the morning; processed 310 m³ of topsoil for the remainder of the day (measured from the monitoring system installed on the Terex Ecotec Trommel).

September 19: Next full day of operation with the ALLU bucket, processing 280 m³ of topsoil due to the poor weather with heavy rain.

September 20: To be able to compare the customer decided to use the GP bucket the full day which resulted in approximate 20% lower efficiency than the ALLU bucket, and required frequent cleaning due to clogging issues.

The following are production figures with ALLU and GP bucket after the demo/test:

In addition to enhancing productivity, the ALLU Variable Drum allows customers to bid on smaller jobs, reducing reliance on larger trommels. Immediately, the productivity of the Terex Trommel increased by 10-20% with the smaller ALLU rental bucket, and with the new purchased DN 3-12 TS VD further great efficiency is anticipated. This capability not only streamlines operations but also promises a quick return on investment, making it an attractive option for contractors looking to optimize their resources.

This collaboration highlights the strong partnership between ALLU and Walkers Hammers, reflecting our commitment to delivering efficient solutions. Together with Walkers Hammers and our valued customer, Soil Recycling Co., we are dedicated to providing sustainable solutions and efficient waste management.

Screening Bucket – D-Series

Carriers 6 – 45 t
Versatile DN-, DS- and DH-Series Screening Buckets serve in a wide range of applications ensuring high-quality material processing on-site.

Other case studies

We solve problems

ALLU helped Kurdeez Minerals improve their lime screening process

Lime Screening for Kurdeez Minerals

Kurdeez Minerals improved their lime screening process by incorporating the ALLU DH3-17 TS 25 with double TS50 Axe blades. This change helped break down lime lumps, streamline material flow, and…

Explore customer story

Processor Allu stabilisant des routes

Explore customer story
Quarry waste screening with the ALLU bucket

Efficient Quarry Waste Handling

ALLU DH3-23 TS35 transforms quarry waste into valuable resources. By efficiently separating stone and clay, larger stones are ready for resale, and fine materials are repurposed for road construction or…

Explore customer story
Limestone crushing with the ALLU screening bucket on a Hitachi excavator

Limestone Crushing with a screening bucket

Limestone crushing with a screening bucket on a Hitachi excavator: efficiently reduce 0-300 mm boulders to 0-90 mm for road construction.

Explore customer story

Compost Happens

Screening Bucket DN 2-12 transforms manure and straw into rich compost by efficiently separating contaminants like stones, and string while enhancing aeration. In Australia, this solution has helped farmers reduce the need for multiple machines, delivering nutrient-rich compost.
Case study

Compost Happens

Victoria, Australia

Material Farm waste, manure, straw, compost

Industry Aération, Agriculture, Compost, Farming

Application Composting, soil improvement, farming

Function Convert farm waste into nutrient-rich compost, separate contaminants, enhance aeration

Model DN 2-12 with TS 16 Axe

A Central Victorian contractor and ALLU buckets are giving nature a helping hand to create healthier soils.

A Central Victorian contractor and ALLU buckets are giving nature a helping hand to create healthier soils.

To the right is a ramshackle pile of, well let’s be blunt, manure. Straight from the farm, it’s mixed with straw, dirt, and all manner of contaminants. And a little unpleasant on the nose.

Just a few meters away is a mound of compost. A dark earthy brown in color, it’s rich and moist to the touch and smells natural. It’s difficult to believe that both piles looked the same just weeks ago. Even a seasoned farmer such as Gino is impressed by the result.

“It looks a picture,” Gino says. “The quality of the product is amazing once you send it through that bucket.”

That bucket is an ALLU Transformer DN 2-12 Screening Bucket which, for the past two years, has lived up to its name and transformed Gino’s compost. Through his Natural Compost Co. in central Victoria, Gino is cultivating a move away from synthetic farming and giving nature’s processes a helping hand, working with farmers to convert manure to compost on-site.

Working on-farm means there are contaminants in the compost piles—stones, string, and steel are the usual culprits. Early attempts to run the piles through a hired trommel proved expensive and often difficult to organize.

Gino even bought a shaker bucket—“a big bucket with holes in it”—but it wasn’t up to the job. (He’s since put a metal plate in the bottom of it and is using it as a digger.)

A bit of research led him to ALLU buckets and, as the saying goes, the rest is history.

“Sami Rahman, Area Sales Manager for ALLU, called me the next day to talk about the problems I was having and what he thought could do the job,” Gino says. “He got the measurements of what machine I was using, organized a trial on-site, and soon after had two buckets on a trailer to Newbridge.”

Gino spent that afternoon “playing” with the recommended buckets. He says he was so impressed; Sami and Carlo Costanzo, a service technician with Walkers Hammers who commissioned the demonstration buckets, went home that day with just one bucket—Gino was going to rent the other.

The next day, he ordered a new bucket with TS 16 Axe blades, enabling a homogenous end product.

“The compost fell out of the bottom of the machine like rain,” Gino says. “It looks like a picture, all nicely processed and sifted. Any contamination and oversize items – we’ve got it set to 40 mm – are left sitting in the bucket.”

“It’s magnificent.”

The ALLU screening bucket is set to 40-millimetres to provide a consistent
end product. (Image: Natural Compost Co)
Rows of compost on site. Customers are noticing the difference in quality since the ALLU screening bucket has been used. (Image: Natural Compost Co)

The ALLU Transformer D-Series bucket is compatible with excavators, loaders, and other earth-moving machinery. It’s designed to screen and separate various materials including soil, sand, gravel, compost, and demolition waste on-site, reducing the need for extra equipment and transport costs while minimizing environmental impact.

Carlo provided support with the installation of the new bucket and operator training, a service Walkers Hammers offers to all Victorian businesses that purchase ALLU products.

Gino uses the bucket on two excavators. To make switching the bucket between the machines easy, ALLU built a head bracket to cater for the two different pin sizes and spaces. He says it makes what is already a productive machine even more so.

Last year, Gino was contracted to process about 5,000 tonnes of compost for farmers. He’s currently working with a wastewater facility to convert sludge removed from a dam several years ago into compost that can be used on-site. He says since buying the Transformer bucket in 2021, his clients are also noticing the difference in the quality of compost produced.

He cites a local farmer who in 2022 had three rows of compost on his farm, one of which was processed through the ALLU bucket. When Gino returned recently to consolidate the rows, the farmer singled out the ALLU-processed row.

“The other two rows, they were good,” Gino says. “But that row that was sifted was like sand. From a quality perspective, running it through that bucket made a difference. Nature will get it there, but the bucket helps me get it there quicker.”

Manure screening and composting in Australia with ALLU screening bucket
Natural Compost Co is using the ALLU bucket to make compost from manure on central Victorian farms.
(Image: Total Rockbreaking Solutions)

Credit: Originally published by Waste Management Review Magazine.

For more information, visit: www.attachmentspecialists.com.au/allu

Screening Bucket – D-Series

Carriers 6 – 45 t
Versatile DN-, DS- and DH-Series Screening Buckets serve in a wide range of applications ensuring high-quality material processing on-site.

Other case studies

We solve problems

ALLU helped Kurdeez Minerals improve their lime screening process

Lime Screening for Kurdeez Minerals

Kurdeez Minerals improved their lime screening process by incorporating the ALLU DH3-17 TS 25 with double TS50 Axe blades. This change helped break down lime lumps, streamline material flow, and…

Explore customer story

Processor Allu stabilisant des routes

Explore customer story
Quarry waste screening with the ALLU bucket

Efficient Quarry Waste Handling

ALLU DH3-23 TS35 transforms quarry waste into valuable resources. By efficiently separating stone and clay, larger stones are ready for resale, and fine materials are repurposed for road construction or…

Explore customer story
Limestone crushing with the ALLU screening bucket on a Hitachi excavator

Limestone Crushing with a screening bucket

Limestone crushing with a screening bucket on a Hitachi excavator: efficiently reduce 0-300 mm boulders to 0-90 mm for road construction.

Explore customer story