Allu introduced the Allu Concrete Bucket, an excavator-mounted attachment designed to crush demolition rubble on-site that will be available this year.
Allu says the Concrete Bucket is designed for excavators in the 25- to 45-ton class and crushes demolition rubble such as concrete, bricks and asphalt. It is suitable for scenarios where bringing in a separate mobile crusher is inefficient or not possible.
The bucket can also be used to increase a mobile crusher’s capacity by pre-crushing and feeding with the same attachment at demolition or recycling sites, according to the company.
“Contractors don’t need another machine to manage on a crowded jobsite; they need a practical way to turn rubble into usable material with the excavator they already have,” says Antti Rautamies, R&D project manager at Allu. “This bucket is built for the real world: fines-heavy material streams, tight spaces, and reinforced concrete that doesn’t arrive ‘clean’.”
The Allu Concrete Bucket is designed to handle steel and rebars in material, reducing “stop-and-clear” time according to the company. The bucket features a changeable counter blade setup that supports output sizes of 0 to 50 mm and 0 to 100 mm. Allu says its new bucket is designed for exceptional production capacity with high fines content, with processing capacity up to 100 tph and a max feed size of 300 mm. It also includes a heavy-duty frame structure with a 40 mm cutting edge and 30 mm side cutters, designed to withstand breakout forces of excavators up to 45 tons.
The crushing drums and blades are undergoing final R&D, but Allu says it has conducted many tests in real-world settings, using multiple ALLU drum-and-blade configurations. A counter-rotating blade structure forms the crushing chamber, and the bucket uses two opposite rotation directions to maintain continuous crushing while quickly screening fines through the bucket.