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Hot Runners

cold-runner-vs-hot-runner-toothbrush

Hot Runners vs Cold Runners: Why You Should Be Using a Hot Runner System

Plastic components are in use by every industry and manufacturing these components through injection molding has come a long way. A wide range of equipment options exist depending on your application and capabilities. Generally speaking you have a choice between traditional cold runners or the more advanced hot runners. Each option comes with its own unique sets of pros and cons and so understanding the differences and how they relate to your application could have a big impact on your productivity and overall profitability.

Choosing-Manifold

Understanding Differences in Hot Runner Heater Technologies – Manifolds

All hot runner systems need a heat source to operate as designed, however not all hot runner systems are heated by the same methods. The type of heater technology your hot runner system uses can significantly affect molding performance, molded part quality and system cost. No heating method exists that is ideal for every scenario and each one has their own pros and cons but illustrating their differences may help you in understanding how your hot runner system is constructed and provide you with some additional insight on your next purchase. Some hot runner systems may use a mix of heating methods depending on the components of the system and application but for the purposes of this discussion we will focus on manifold heater elements.

Choosing-Hot-Runner-Heater

Understanding Differences in Hot Runner Heater Technologies – Nozzles

All hot runner systems need a heat source to operate as designed, however not all hot runner systems use the same heating methods. The type of heater technology your hot runner system uses can significantly affect molding performance, part quality, and system cost. No heater method exists that is ideal for every scenario and each one has their own pros and cons but illustrating their differences may help you in understanding your hot runner system a little more and give you a bit more insight on your next purchase. Some hot runner systems may use a mix of heating methods depending on the components of the system and application but for the purposes of this discussion we will focus on nozzle heater elements.