Why cast iron is used for machining the casing and impeller of Roots blower?

Why cast iron is used for machining the casing and impeller of Roots blower?

1. The processing difficulty coefficient is low.

Compared with stainless steel and carbon steel, the processing difficulty of cast iron is relatively low. Ordinary machine tools can fine process cast iron, with better production effect and lower processing difficulty coefficient.

2. Broad market demand.

Roots blowers made of cast iron are widely needed in the market. Roots blower made of cast iron is usually used by companies delivering clean air. This kind of blower is cheap and can fully meet the engineering requirements. Therefore, fans made of cast iron are widely needed in the market. General enterprises are market-oriented in production and sales, and there are many markets for Roots blower.

3. Low comprehensive cost.

Compared with stainless steel and cast iron, the comprehensive cost of cast iron roots blower is relatively low. For blower enterprises just starting, it is better to use cast iron for production and processing. Even cast iron materials have different costs. Therefore, the fan made of cast iron by some manufacturers is expensive, while the fan made by some manufacturers is cheap. Cast iron will affect the overall price of the fan. Roots fan made of stainless steel is more expensive, generally three times higher than cast iron. The production process of stainless steel is very difficult. Due to the combination of the two factors, the price of stainless steel roots blower is at least 4-5 times higher than that of cast iron roots blower. In terms of price and cost, Roots blower is expensive, which is also a common phenomenon in the market.

4. Under what circumstances should stainless steel be selected?

The transport medium contains corrosive components. If Roots blower is the best choice, please choose stainless steel Roots blower. Fans made of stainless steel have higher corrosion resistance than those made of cast iron.

The above is the reason why cast iron is used for machining the casing and impeller of Roots blower. When purchasing Roots blower, select the appropriate blower according to your own needs.