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 Type

Door speed, door operation, and door opening width affect the door opening and closing times of your elevator. Ultimately, this impacts performance and interval. Because door operation happens at each stop, a one second difference in opening and/or closing time makes a major difference in calculated performance.

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