Finland-based Allu says its crushing and screening bucket attachments have “paved the way for the future of demolition.” Adds the company, which serves the United States from an office in New Jersey, “For the last 30 years, Allu has been producing screening buckets for the global market.”
The company says it has recently launched crusher buckets for 10 to 38-ton excavators and material handlers, with those units adjustable to create 13 different discharge sizes.
“The advantage of using both solutions side by side is increased capacity and resumed wear and tear for sites with five times the production rate,” says Allu of its combination crushing and screening buckets. Adds Allu, “When a customer in Finland tested the crusher and screener side by side, it became a game changer for demolition.”
Comments Ilpo Ellonen, a regional sales Manager with Allu in Finland, “The demolition concrete was treated after pulverization with two Allu attachments. The excess obtained from the screener crusher bucket visible at the front was crushed to a 90 millimeter (3.5 inch) fraction with a crusher bucket.”
In this initial project, says Ellonen, “The demolition of two two-story (lower floor underground) residential buildings produced a total of about 5,000 tons of concrete. The maximum fraction size achieved in the pulverization was 400 millimeters (15.7 inches), which is a maximum good input feed size for the Allu crusher bucket. The jaw is reversible, which enables fast and easy recovery of from possible blockages. In my 30 years in the industry, this has changed the direction for demolition”
Among the purposes of the process is to recycle concrete debris into stone aggregate for onsite reuse, which replaces the need to use virgin aggregate, providing an environmentally sustainable solutions, according to Allu.