Classroom on demand

Welcome to Classroom on demand, your source for educational materials related to the vertical transportation industry. This site represents the knowledge and expertise of the best engineers and mechanics in the elevator industry, and will help those new to the elevator industry learn about the basic workings of elevator systems, and also will serve as a reference for people with more experience.

Door Equipment Module

Door Equipment Module: The door equipment module consists of numerous assemblies. In its simplest form, this equipment opens, closes, and locks the cab and hoistway doors. The major assemblies consist of the door operator, header, tracks, hanger rollers, interlock, clutch, and closures.

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