The impeller is the part of the mixer that imparts fluidity. Mixing impellers, also known as agitator blades, are designed to transfer motor-driven energy to the contents of the tank as quickly and efficiently as possible. There are four main types of mixing impellers, each of which converts the energy given to it in a different way:

Stainless steel castings for stirring impellers
Airfoil: Usually the most efficient as it produces the greatest pumping with the lowest shear.
Asphalt Vanes: For viscous mixtures and applications requiring a combination of pumping and shearing.
Radial Blades: Ideal for applications where shearing is the primary requirement or where agitation close to the bottom of the tank is required.
Marine Type Propellers: Suitable for low viscosity, high speed direct drive mixers.
Stainless steel castings for stirring impellers
Stainless steel alloys are widely used as materials for stirring impellers and have excellent corrosion resistance, thus minimizing contamination of the material being processed. The focus on purity in the food, dairy, beverage and pharmaceutical industries is reflected in the need for smooth surfaces, especially those in contact with the fluids used.
So how is the stainless steel stirring impeller made? As can be seen from the types of stirring impellers, there are many different shapes, and each type has a different structure. In order to meet the various needs of stirring impellers, stainless steel lost wax casting, also known as stainless steel investment casting, is often used to manufacture stirring impellers.

Stirring impeller stainless steel casting is a lost wax precision casting process in which the liquid metal is poured into the shell after the wax in the shell is melted. Through investment casting, our customers can obtain net shape stirring impellers with good surface finish, thus reducing or saving secondary machining. In addition, in order to obtain bright or more surface effects, the surface of the stirring impeller after casting of stainless steel can be mechanically or chemically treated or electropolished. Surface scale and discoloration that occurs after heat treatment can be removed by chemical treatment. For high purity requirements, electropolishing not only has the advantage of being versatile, but also provides a very smooth surface that is easy to passivate.

As a professional stainless steel casting supplier in China, Jiachuancasting often uses 316L stainless steel or even higher grade stainless steel casting stirring impeller, and then passivation, electropolishing or mirror polishing. Our company can customize stirring impeller according to customer's samples or drawings. We are happy to work with our customers from initial sample orders.