Lindner introduces Atlas primary shredder

At IFAT 2018, which was May 14 to 18 in Munich, Lindner, Spittal an der Drau, Austria, introduced its Atlas primary shredder. The company says this stationary “ripping” twin-shaft primary shredder complements the tried-and-tested Jupiter series.

The newly developed ripping system ensures very high throughputs and little downtime: It is efficient, energy saving, environmentally friendly and produces little noise, Lindner says.

Optical sorting systems, such as those following primary shredders in modern solid recovered fuel (SRF) lines, can sort out recyclables more effectively and better comply with legal regulations and requirements if the discharge conveyor is evenly filled with material, Lindner says.

In response to greater demands on recycling sorting processes and the growing need for coarser output in SRF production, Linder has developed the Atlas, calling it the the ideal primary shredder complemented by the outstanding secondary shredders in the Komet series.

According to Lindner, both shafts of the shredding unit can rotate independently while featuring a sturdy frame. If one shaft stops because of foreign objects, bulky or tough input materials, the second shaft can still be used in asynchronous operation, ensuring continuous and uniform material discharge. As Lindner Product Manager Stefan Scheiflinger-Ehrenwerth explains, shredding takes place in both directions, enabling a peak throughput of 40 to 50 metric tons per hour, depending on the input material--even in reverse mode.

Lindner says what makes the Atlas shredder unique and innovative is the machine’s electric drive concept. Lindner says it has developed its asynchronous motor belt drive and is now introducing a twin-shaft shredder with intelligent energy management. Scheiflinger-Ehrenwerth says of the development, “As a result, the machine consumes up to 40 percent less energy than shredders with conventional hydraulic drives and has even faster reaction times.” He also says a container for the oil tank is no longer required. “A hydraulic power pack as large as the machine itself is no longer needed.”

According to Lindner, although hydraulic drives have the advantage of allowing pressure to be altered quickly, they also generate a lot of heat. The energy loss is therefore considerable, and hydraulic fluids might also escape. Additionally, oil must be refilled regularly and the engine serviced periodically. An electric drive does away with these tasks and produces far less noise than a hydraulic system, the company adds.

“Apart from the regular maintenance intervals with the obligatory hard facing after a certain number of operating hours, virtually zero maintenance is required,” says Scheiflinger-Ehrenwerth. “No cutting gap needs to be readjusted, the machine simply operates up to the next scheduled maintenance.”

The Atlas features a torque-limiting safety clutch, which protects the drive unit from damage in the event of blockages caused by nonshreddables, the company says. When developing its stationary primary shredder, Lindner says it considered it vital that tried-and-tested technology was reflected in the innovation.

Lindner has been offering shredding solutions for decades. From planning, development, design and production to service, everything comes from a single source. Lindner manufactures machines and system components that are exported to almost 100 countries.