Summary The mold of an injection molding machine is a hazard zone. Some of its hazards are related to the molding machine itself, while others stem from the auxiliary equipment used with the machine. This guide will help identify risk areas and appropriate risk reduction measures for improving worker safety. It focuses specifically on the risks associated with using a horizontal plastic injection molding machine (limited to the mold area) in combination with one or more auxiliary equipment. This guide, the bulk of which consists of safety checklists, was designed to help users determine which components are important to consider. The general rule is to ensure that the initial safety level of the injection molding machine is not affected when the user installs and runs auxiliary equipment that was not supplied by the molding machine manufacturer.