We have just completed the overhaul and refurbishment of a tarmacadam mixing machine for Cemex who operate plants through out the UK. The job involved stripping out worn drive shafts and bearings external to the mixing chamber, and the mixing paddles that are inside the mixer body. The machine was locked out and isolated to allow the work to proceed safely.
The work inside the mixer was particularly dirty and all the connections were coated with old tar from years of use. Once the old components were removed the new paddles were connected to new shafts driven by twin drive motors and gearboxes with gear wheels to keep the two aligned.
A tight schedule was met by working overtime on site and in the machine shop which modified new couplings that were procured from Germany to replace items not expected to be worn.