Concrete is the backbone of modern infrastructure. From highways and bridges to commercial buildings and industrial facilities, it is one of the world's most widely used construction materials. But as aging structures continue to be replaced, another reality is becoming impossible to ignore: concrete waste is growing rapidly.
To help contractors tackle this challenge, ALLU has introduced its new concrete screening and crushing bucket, an excavator-mounted attachment designed to process demolition material directly where it is generated. Built for 55,000–99,000 lb. (25-45 ton) excavators, the attachment crushes and screens concrete, brick, asphalt and rebar-contaminated demolition material onsite, reducing hauling and creating reusable material for the next phase of construction.
For demolition and recycling contractors, this is more than a new piece of equipment. Broken concrete is heavy, difficult to handle, expensive to transport and rarely arrives as clean material. It often contains rebar, brick, fines, dirt and other debris that complicate processing. Every load hauled away represents additional trucking costs, disposal fees, fuel consumption and valuable time that could otherwise be spent moving the project forward.
At the same time, contractors face tighter project schedules, higher operating costs and increasing pressure to recover and reuse materials whenever possible. Traditional processing methods often require multiple machines, several material handling steps and enough space to operate a mobile crushing plant. On many urban demolition sites, that simply isn't practical.
The ALLU Concrete Bucket addresses these challenges by bringing crushing and screening directly to the excavator already working onsite. Instead of transporting demolition rubble elsewhere for processing, contractors can reduce concrete into reusable material immediately after demolition, keeping valuable resources where they're needed and simplifying the entire material handling process. This practical approach reflects a broader shift across the industry toward processing materials closer to where they are generated.
Built for Today's Demolition Job Sites
Designed for excavators in the 25- to 45-ton class, the ALLU concrete bucket combines crushing and screening into a single attachment that processes concrete rubble, bricks, large asphalt fragments and reinforced demolition material directly onsite. Rather than hauling bulky concrete away for processing before importing replacement aggregate, contractors can produce reusable material with the excavator already working on the project.
The approach is straightforward. Instead of moving material several times throughout the demolition process, operators crush and screen it immediately after demolition. Material can then be reused for backfill, road base, fill material or prepared for additional recycling, reducing both transportation requirements and material handling.
For contractors working on confined urban jobsites, infrastructure projects or recycling facilities, eliminating unnecessary machine movements can have a measurable impact on productivity.
Designed for Real-World Material
One of the biggest challenges in concrete recycling is that demolition material rarely arrives in ideal condition.
Concrete often contains steel reinforcement, wire mesh, brick fragments, dirt, asphalt and other contaminants that interrupt production when equipment is not designed to accommodate them.
The ALLU concrete bucket addresses this reality by allowing operators to process material containing rebar and other steel contamination without the constant stop-and-clear interruptions common with conventional processing equipment. Rather than requiring perfectly sorted feed material, the attachment is engineered for the mixed material streams contractors encounter every day.
That capability becomes increasingly important as more demolition projects focus on selective demolition and material recovery instead of simply hauling everything to landfill.
High Capacity in Compact Footprint
Although compact compared to a traditional mobile crusher, the concrete bucket is built for demanding production.
The attachment accepts feed material up to approximately 12 in. and offers two output size configurations: 0-2 in. or 0-4 in., allowing contractors to match the finished material to project requirements. Under suitable operating conditions, processing capacity reaches up to approximately 110 tons per hour.
The heavy-duty frame incorporates a 40 mm cutting edge and 30 mm side cutters engineered to withstand the breakout forces of excavators up to 45 tons. Replaceable carbide-tipped crushing picks simplify wear part replacement while helping maintain aggressive crushing performance.
Internally, three rotating crushing drums work together with a two-way rotation system that promotes consistent material flow.
Sustainability Through Productivity
The industry's focus on sustainability often centers around emissions and recycling rates, but productivity plays an equally important role.
Every truckload of concrete that stays onsite instead of traveling to a recycling facility represents reduced fuel consumption, fewer transportation emissions, and lower operating costs. At the same time, producing reusable aggregate onsite reduces demand for virgin material and shortens project timelines by keeping material available where it is needed.
Rather than viewing demolition concrete as waste, contractors increasingly recognize it as a resource that can be processed and returned directly to construction activities.
Processing Where Work Happens
For more than four decades, ALLU has focused on helping contractors process material where it is generated. The new concrete screening and crushing bucket continues that philosophy by giving excavators additional processing capability without adding unnecessary complexity to the job site.
As demolition volumes continue to increase and contractors look for ways to improve efficiency, reduce hauling and recover more reusable material, attachment-based processing solutions are becoming an increasingly practical part of modern demolition operations.
Sometimes the biggest productivity gains don't come from adding another machine. They come from making the machine already onsite capable of doing more.
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This story also appears on Aggregate Equipment Guide.
