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Machines and Drives
VFD-for-Residential-Elevators

VFD for Residential Elevators

By Sher Xiong | November 1, 2020

The commercial F5 series drive and accessories are offered for winding-drum or traction applications in which an open-loop geared induction motor is typically used. As the U.S. population ages, mobility within the home can become a challenge. Relatively simple tasks, such as using the stairs, become increasingly difficult as we age. For some, the only…

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Choosing-a-Brake-for-Elevator-Machines

Choosing a Brake for Elevator Machines

By Alexander Hutler | November 1, 2020

The selection of reliable safety brakes is discussed in this Readers’ Platform. The safety of elevator passengers has top priority. Gearless elevator machines are today’s state of the art. Every component, especially the integrated safety brake, should be carefully considered, because safety-relevant components, such as the brakes, must accord with the highest-quality requirements. However, due…

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Elevator-Drive-Obsolescence

Elevator Drive Obsolescence

By Jordan Griffin | November 1, 2020

In this Readers’ Platform, your author asks the question, “Who decides why and when?” Henry Ford II argued, “Obsolescence is the very hallmark of progress,” and I’m sure that most can agree that we have seen rapid progress in elevator technology over the past 30 years. Technological advancement and obsolescence are two sides of the…

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A-Drop-Tower-of-Superlatives

A Drop Tower of Superlatives

By Giuseppe Savoca | November 1, 2020

GEFRAN frequency converters were installed in Hanover, Germany’s unique Einstein Elevator.. Physical and production engineering experiments for applications in space, on the moon or even on Mars: what sounds like science fiction could soon become reality. Research experiments to this end are already taking place in a new free drop tower at Leibniz University Hannover.…

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Gearless-Motors-A-Sealed-Spherical-Roller-Bearing-With-Improved-Performance

Gearless Motors: A Sealed Spherical Roller Bearing With Improved Performance

By Elevator World | February 1, 2018

This Product Spotlight describes the multiple improvements to the bearing, now designated with the -RS suffix. This paper was presented at  Madrid 2016, the International Congress on Vertical Transportation Technologies, and first published in IAEE book Elevator Technology 21, edited by A. Lustig. It is a reprint with permission from the International Association of Elevator…

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Development-of-a-Holistic-Solution-for-VVVF-Drives

Development of a Holistic Solution for VVVF Drives

By Dr. K.M. Tsang, Dr. W.L. Chan | February 1, 2018

Several concerns about this industrial norm are investigated. This paper was presented at Madrid 2016, the International Congress on Vertical Transportation Technologies, and first published in IAEE book Elevator Technology 21, edited by A. Lustig. It is a reprint with permission from the International Association of Elevator Engineers (website: www.elevcon.com). By Dr. K.M. Tsang, Dr.…

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Torin-Drive-Delivers-Millionth-Machine

Torin Drive Delivers Millionth Machine

By Elevator World | February 1, 2018

EW correspondent shares highlights from the momentous event. Standing at the meeting hall entrance of the Changshu International Hotel in Changsu, China, on the warm afternoon of September 26, 2017, Zhang He, chairman of Suzhou Torin Drive, welcomed arriving guests, shaking hands and taking pictures with some of them. Nearly 300 people made up of…

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Elevator World | September 2021 Cover

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