The power required for producing injection molds depends on many different factors and varies based on what materials are used and what the injection molded parts will be used for. The Manufacturing Processes Reference Guide states that power requirements depend on "a material's specific gravity, melting point, thermal conductivity, part size, and molding rate.
The article comes from China injection mold manufacturer - Mold Best Assurance Company Limited, website is www.mbamoldanddesign.com