Crusher meets urban noise limits
First publishedin Aggregates Business Europe
Many recycling projects take contractors into the city centre, where noise and vibration can be even more of an issue than in a quarry site. Nonetheless, Skillings Crushing Company has successfully overcome the problems at one redevelopment site in the centre of Leeds, UK.
The company used one of its Kleemann Mobicat MC 110 Z mobile jaw crushers to process 20,000m3 of concrete arisings to produce 75mm 6F1/6F2 specification materials for re-use in sites in the north of England. It will also crush some 10,000m3 of rock, which is to be excavated for the shopping centre basements that are to be built on the site.
But before Skillings could start work on site, it had to show it could meet tough noise and vibration limits in the sensitive city centre location. "This we were able to do," explained managing director Dave Skillings. "The emissions from the machine are well within the background levels on site. Additionally, processing material on site has meant fewer truck movements, saved fuel and reduced carbon emissions.
"The Mobicat is much quieter than comparable machines, and operates with less vibration. As this site demonstrates, that's an important consideration when you're working in urban areas. The crusher operates at a lower rpm, which means there's also a significant saving on fuel. The machine features a pre-screen, before the crushing jaw. As a consequence you don't have to bring a separate piece of plant onto the site specifically to screen the material before loading the crusher."