Aluminum shell motor: Made of aluminum material, it has the advantages of light weight, good heat dissipation performance, good thermal conductivity, can be die cast, good plasticity, higher elongation than iron, low noise, and good operational stability. However, its disadvantages are high price and low hardness, making it suitable for installation in places where output is not very high. Cast iron motor: The motor casing is often made of cast iron material, which have the advantages of high hardness, high resistance to external pressure, not easy to deform, low price, and can be installed in places with high driving force and poor environmental conditions. The disadvantages are heavy weight, poor thermal conductivity, inability to die cast, poor plasticity, and lower elongation than aluminum. The noise is loud and the stability is not as good as aluminum. The casing hosing is die cast metal. We provide custom electric motor shell and custom Fine Processing according too your drawings.