Many major world cities have already imposed limitations on vehicles in order to reduce nitrogen oxide emissions and improve air quality. London, for example, introduced ultra low emission zones (ULEZ) in 2015, which also apply strict emission regulations to mobile construction machinery. Contractors must meet these legal regulations in order to avoid paying fines
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One company wanted to rent a crusher that would be able to handle conditions on a challenging worksite in Camden, central London. A building next to a school near Camden Market was to be demolished but there was little space to manoeuvre, let alone even access the site due to its near 2.5 metre narrow entrance. Via a recommendation, the company found out that crushers from Austrian manufacturer RUBBLE MASTER can produce high-quality final aggregate in a single pass, that can be used again immediately on the jobsite. The firm rented the RM 70GO! 2.0 from RUBBLE MASTER’s (RM) British dealership, Red Knight 6 Ltd. Thanks to its average throughput of 125tonnes/hour, the mobile compact impact crusher needed less than five days to crush the 4,000tonnes of demolition-generated aggregate waste material.
As the final recycled aggregate was used for re-piling on the Haverstock Hill Road jobsite, the delivery of piling material was reduced to a minimum. This saved the residents from unnecessary lorry traffic – an additional element of how RM crushers protect the environment from noise, dust and other emissions. The typical RM plant drive concept is also said to ensure very low fuel consumption, reducing emissions and running costs.
Crushing in London needs to meet certain noise regulations too, which is said to be no problem for RM machines. “Whenever I visit a construction site where a RUBBLE MASTER crusher is working, I am again and again surprised how low the noise level of the machine is compared to other crushers,” said Paul Donnelly, director of Red Knight 6.
“The RM crushers are very intuitive to operate which makes them perfect for hiring. With its remote control the RM 70GO! 2.0 is easily moved and requires only one person to operate the excavator and control the crusher. This, of course, saves time. Although it was not necessary on this site, crushing and moving at the same time would also be possible. It is all these ‘little’ things that make the difference”, he said.
