Mold chillers directly affect the yield, molding cycle and production cost of injection and die-cast parts. This article sorts out high-quality domestic chiller makers focusing on mold cooling, compares their strengths and applicable scenarios, and provides practical procurement criteria covering cooling load calculation, temperature tolerance, hardware inspection and after-sales evaluation. It helps manufacturers select air-cooled, water-cooled or screw chillers according to workshop conditions and avoid common issues such as exaggerated cooling ratings and high-temperature shutdown failures.