Advantages of Bronze and Brass Impeller Castings

Advantages of Bronze and Brass Impeller Castings

Typically made from a variety of materials, including stainless steels, irons, bronzes and plastics, impeller castings are usually found at the centre of machines that rotate, such as centrifugal pump bodies or compressors.brass impeller castings These rotors are, essentially, a device that increases the pressure and flow of liquids, gases or vapours that are contained within the mechanism, using a power source to provide rotational energy. The specific material that's used often depends on the properties of the fluid or gas to be moved; corrosion or heat resistance are common requirements for heavy-duty environments, while clean-out is an important feature for many food applications.

Choosing the right process for producing brass or bronze impellers can significantly speed up production times and reduce costs.brass impeller castings Aurora Metals is a leading supplier of bronze and brass impeller castings, utilizing the vacuum cast process to deliver superior quality and service. The technology offers advantages that make it the preferred solution for many of the country's top manufacturers of pumps and related products, providing the capability to produce open or closed shrouded impellers in either a straight blade or back stripping francis blade design.

The primary advantage of the vacuum cast process is the reduction in time and cost required to get into production.brass impeller castings In contrast, conventional casting methods require the creation of a new tool, which typically adds a minimum of 15% to the cost and a minimum of two weeks for a small change. This additional step slows the overall time to market considerably, especially for a manufacturer who has a new design that they want to put into production as soon as possible.

For a double suction impeller with a diameter of 15 inches, Aurora's process has demonstrated an advantage of more than a week over the conventional method when it comes to bringing the part to market. A detailed study was conducted with a prototype impeller, comparing molded wax patterns produced with 3D Systems' patented SLA QuickCast pattern-making technology to the same part built with a traditional tool, and recording both the cost and timing of each process at every stage of production.

The results show that, in this particular case, a manufacturer who chooses the Tech Cast process to bring a new design of an impeller into production will get to market a full week sooner and save approximately $2,500 in tooling cost when compared to the conventional method. This is a remarkable figure given the relatively minor changes that were needed in the example, and highlights the benefits of choosing the Tech Cast process over conventional techniques. For further information on the technology, or to discuss a new project, contact the team at Aurora Metals. The company provides a comprehensive range of services, including product development support, mold making, manual and CNC machining, assembly, heat treatment, finishing and Kanban delivery. All the company's work is carried out in-house at their facility in North Carolina.

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