Propeller

OEM Service Custom stainless steel

Custom Cast Propellers

Custom cast propellers are a type of marine propeller that is tailored to the specific needs of a boat or vessel. These propellers are made by pouring molten metal into a mold of the desired shape and size. The casting process allows for greater precision and customization than other manufacturing methods, such as machining or welding.
Custom cast propellers are designed to optimize the performance of a boat or vessel, taking into account factors such as its size, weight, engine power, and operating conditions. The pitch, diameter, and blade shape of the propeller can all be adjusted to suit the specific needs of the vessel.
One of the main advantages of custom cast propellers is their efficiency. A properly designed and fitted propeller can significantly reduce fuel consumption and increase speed, resulting in cost savings and improved performance.
However, custom cast propellers can be more expensive than off-the-shelf propellers, and the casting process can take longer. It is important to work with a reputable propeller manufacturer who can provide expert advice and guidance throughout the design and production process.

The investment casting process begins with a precise model (pattern) of the end product. For centuries this pattern has been made out of wax, however currently there are a variety of materials that are used. The model is then covered with a ceramic slurry which hardens to create a mold. The original model is then dissolved (for example, wax is melted and drained), and molten metal is inserted in its place. Once cooled and the mold removed (divested), you are left with the finished piece.

In practice, modern Investment Casting is a more sophisticated process that involves many more steps than described above. Sometimes it requires multiple model components, various modeling materials, etc., and like die casting, when done well, the resulting surface quality is excellent.

Typical steps in Investment Casting:

Create an aluminum mold (negative pattern)

Wax injection (positive pattern)

Assembly of the pattern tree (potentially consisting of multiple patterns)

Covering with refractory clay,

Furnace dewaxing

Pouring of molten metal

Separation from mold

Cutting & fettling

Heat treatment

Machining

Plating and other finishing process.