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 Asphalt, Industrial Applications, Waste material handling

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

Leicestershire, United Kingdom

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

Industry Asphalt, Waste material handling

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/

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