Marine

CTL was approached by F. Bamford & Co Stockport for the machining of large propellers for the Greek Navy on their Fast Attack Frigates, (which are used to combat drug trafficking, shown above in banner & below) 

• The propellers were over 1500m/m diameter. 
• The challenge was to access both sides of the propeller blades and also finish machine the hub in the same set up. 
• This was made difficult due to the steep pitch of the blades and their close proximity to each other. 

We accomplished this by designing bespoke work holding fixtures along with a detailed manufacturing plan, also using our in-house CAD/CAM system. CTL then utilised our large co-ordinate measuring machine to collect data to enable the best fit to the cast surfaces, which then aided the complex multi CNC machining programs.

         Fast Attack Frigate Greek Navy                                        Propeller set up ready for manufacture