BlueMAC MRF plant now live at Central Demolition

By Dan on Wed 21st Dec 2016

The Customer
Blue Scotland customer, Central Demolition, undertake the full range of processes to form a closed loop scenario, from demolition and dismantling to managing that waste stream and onto the creation of saleable material to be put back into the construction industry. All this takes place at their constantly expanding facility based in Bonnybridge, near Falkirk. The business was set up by Ross Craig and Colin Peat in 1993 with the businessmen still at the helm today, managing over 190 employees across the company.

The Challenge
Central Demolition had a Powerscreen washplant installed in 2011 to process the C&D material that was coming into the site. Initially the material was hand-picked and fed into a crusher before it was screened to <40mm. This process was not only laborious but also placed employees in the vicinity of moving heavy equipment. There were clearly health and safety concerns as well as proving very challenging for the team as they were exposed to the elements. Furthermore there was also the remaining material which was going to landfll and falling within the higher landfll tax bracket.

The Solution
Blue Scotland called upon sister company, BlueMAC Manufacturing to help them design a plant which could address all of these challenges. The MRF would automate much of the manual element within the process, maximising recovery rates and minimising volumes to landfll. It would also place the employees in safe working environments and help ensure high levels of productivity.

The Process

- Initially the material is fed onto a 8m BlueMAC incline conveyor which feeds a screenbox to separate the material into three sizes -10mm pit sand/as dug is used for bedding pipes and for general building works 10mm-75mm goes directly to a 1000 Maxtrak cone crusher +75mm moves forward to a 4 bay picking station where wood and metal are removed. The metal is sold on to metal reprocessers, while the wood is used for biomass and fibreboard production

- The remaining material from the picking station then moves forward to an overband magnet and blower which removes any remaining ferrous and light material before it joins the 10mm- 75mm extracted from the screenbox in the 1000 Maxtrak cone crusher.

- The <40mm created by the crusher is fed into the washplant, initially moving through a scrub with a paddle system

- The material gets cleaner as it moves up the system with the dirty water going through a Finesmaster to extract the sand. The sand is used for used for landscaping and building projects

- The remaining clean material is separated via a Powerscreen Chieftain into 3 sizes, 5mm-10mm, 10mm-20mm and 20mm-40mm. Each of these sizes are utilised within major housebuilding and construction sites


BlueMAC Manufacturing is well known for producing high quality, reliable machinery and it is our ethos to work closely, and develop lasting relationships, with our customers long after the initial sale. BlueMAC are fully accredited with ISO 9001, 14001 & 45001 certifications and so we are able to provide complete assurance of build quality.

  • ISO 45001
  • ISO 14001
  • ISO 9001