To assure highest dimensional accuracy our propellers are moulded using patterns printed by 3D rapid prototyping printer – the most innovative way in pattern making. For higher volumes, aluminium or resin boxless systems are used. Please click on the link to read more about pattern making.
Over recent years we have also invested in leading edge machining equipment and have developed our own CAD/CAM software and 3D modelling systems. Computer modelling allows for manufacturing to be simulated even before a pattern is made and a test casting produced, ensuring that manufacturing processes consistently deliver optimum results. They are normally cast in nickel aluminium bronze from our highly accurate tooling. The propellers are either CNC machined or hand finished from the precise castings. They are then dynamically or statically balanced and MRI scanned to achieve up to Class S standards for optimum performance and smooth running.
Propellers can be manufactured with standard keyed hubs tapered to: ISO 1:10, SAE 1:16, BS marine standard 1:12, as well as keyless hub tapered 1:30. Any other non-standard taper can also be machined.
PROP BORING & FULLY MACHINED PROPS CELL
- This Cell of machines has the capability to machine precision tapered bores as well as fully CNC machined blades surfaces for propellers through-out our range, as well as being capable of machining accurate custom propeller patterns in-house
- This cell is also the home to our most expensive single CNC machine, which is a large capacity 5 axis Mill/Turn that can swing components up to Ø1,320mm (Ø52”), although typically works to Ø1,250 (Ø49”). Its “lights out” machining capability provides non-stop, 24 hours/day unmanned machining; so it carries on even when we have gone home for the evening!