The Function of the Impeller

The main function of the impeller is to convert mechanical energy into fluid energy. For example, in a pump, the rotation of the impeller can generate centrifugal force. It sucks the fluid into the pump and accelerates it outward. Thus increasing the fluid’s speed and pressure.

Impeller Casting Process

we use different casting processes to manufacture the impeller castings in our foundry. It can meet the different requirements of our customers.

Investment Casting

Our investment casting process (also known as lost-wax casting) is highly suitable for producing impellers with complex structure and high precision requirements. The tolerance can be within ±0.05 millimeters. The investment casting impellers have an excellent surface finish. It can reduce the need for post-casting machining.

Sand Casting

It is suitable for larger impellers or those with less complex shapes. Sand casting is a cost-effective alternative. We use high-quality sand molds that can be customized according to the specific dimensions of the impeller. The design of the sand mold can withstand the high temperature of the molten metal. To ensure the proper filling of the mold cavity.

Precision Die Casting

When mass production of impellers with stable quality is required, precision die casting comes into play. We design and manufacture customized molds to inject molten metal into the mold cavity under high pressure. This process has high productivity and excellent dimensional accuracy. For example, some automotive and aerospace impellers.

Impeller Casting Material Types

We understand that different applications need specific material properties. So, we offer a variety of materials for impeller castings.

Stainless Steel:Stainless steel is the preferred material for impellers used in corrosive environments. Such as the chemical, marine, and food processing industries. SS 304 and SS 316, PH 17-4, 2205 duplex stainless steel.

Marine Industry Case:A shipbuilding company’s seawater cooling system required an impeller. The impeller was made of duplex stainless steel. It can withstand the harsh marine environment. The corrosion resistance and erosion resistance of the impeller ensured long-term and reliable operation, reduced the need for frequent replacements, and minimized the ship’s downtime. The shipbuilding company was deeply impressed by the performance of the impeller and has continued to purchase impellers from us for their new ship projects ever since.

Titanium Alloys, Nickel-based Alloys:For high-temperature applications. Such as power generation turbines and aero engines. Nickel-based alloys are the good choice. These alloys（including Inconel and Hastelloy）can withstand extreme temperatures.

Copper Copper Alloys:They have good corrosion resistance and wear resistance, and stable mechanical properties. They are suitable for a variety of complex working conditions and precision equipment.

Aluminum alloys:Aluminum alloys used for impellers have the characteristics of light weight, high strength and good corrosion resistance. They can reduce the load of equipment. They are widely suitable for scenarios with lightweight requirements. Such as aerospace and automotive industries.

Size Range

Our manufacturing capabilities enable us to produce impellers within a wide range of sizes. We can produce small impellers with a diameter as small as a few centimeters. They are suitable for medical equipment, small pumps, and precision machinery. We also have the expertise and equipment to handle large impellers with a diameter of more than several meters. These impellers are usually used in power plants, large industrial pumps, and marine applications.

Small Precision Case

A microfluidic pump of a laboratory equipment supplier required an impeller with a diameter of only 3 centimeters. Using our precision machining and investment casting technologies, we were able to produce an impeller with extremely small tolerances. The impeller had precise dimensions and a smooth surface, enabling it to handle fluids efficiently at the micron scale and meet the high standards of the laboratory equipment.

Large Industrial Example

A large power plant required an impeller with a diameter of 3.5 meters for their water treatment equipment.

Impeller Casting Manufacturer Core Advantages

As an Impeller Casting Manufacturer, we have below advatanges.

• We have rich material selection.
• Advanced casting processes.
• Top-notch production facilities
• Professional talent team
• Strict inspection throughout the whole process,
• The significance of ISO 9001 quality certification and the advantages of the management system
• Customized services
• Guaranteed on-time delivery
• Comprehensive after-sales support