What is different between bye hot or not and cold runner

Question

Accepted Answer

Hot runner and cold runner are two different types of systems used in injection molding.

Hot runner system keeps the plastic material in a molten state throughout the molding process, while cold runner system allows the material to solidify in the runner channels.
Hot runner system eliminates the need for runners to be ejected and reduces waste material, while cold runner system generates waste material in the form of solidified runners.
Hot runner system is more suitable for high-volume production and complex parts, while cold runner system is commonly used for low-volume production and simple parts.
Hot runner system requires more maintenance and has higher initial costs compared to cold runner system.
Example: Hot runner system is used for manufacturing automotive parts with intricate designs, while cold runner system is used for producing simple plastic caps.

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