Focus Topic
Steam-Powered Elevator Engines
Examining early steam-powered engines and their evolution There is, perhaps, nothing as antithetical to our conception of the modern electric elevator engine as the 19th-century steam engine. Our mind’s eye...
KEB dV/dt Elevator Chokes: Protect your Elevator Motor Investment
This article provides an explanation of the effects of high dV/dt created by variable-frequency drives and offers solutions to protect elevator motors. submitted by KEB America, Inc. During the past...
Submersible Electric Motors for Hydraulic Lifts
Choosing the appropriate motor for an elevator can allow more efficient energy use. by Ivo Busi and Fabio Calegari In recent years, the hydraulic lift, as an alternative to the...
MDS1 Automatic Modular Lift Door for Residential Applications
Overview of Wittur’s recently introduced Modular Door System 1, an automatic door for new lift installations in residential buildings submitted by The Wittur Group The Wittur Group recently introduced its...
Obstruction Detectors – A Historical Review
A review of door sensors from the 1950s to the present A major issue with automatically powered elevator doors is the risk of passenger injury from door impacts. Elevator companies...
Elevator Door Protection from TL Jones
This article looks at the history, growth and future of TL Jones’ Microscan technology. Having a long history in the elevator industry has helped TL Jones become a recognizable worldwide...
SEES Light Screen and Resistor
An overview of SEES’ new universal light screen/door protector Southern Elevator & Electric Supply (SEES) now offers a universal light screen/door protector, which works for almost all applications. The design...
Keep Your Elevators Running with Door Operation Upgrades
This article discusses the performance benefits of upgrading elevator door equipment. The average elevator door opens and closes more than 200,000 times a year. No wonder the majority – more...
Sematic Elevator Door Equipment: Energy Conservation in the Elevator Industry
An in-depth look at Sematic’s energy-efficient door-drive controllers Energy conservation is a current hot topic and one of the main challenges for the 21st century. Lowering and optimizing power consumption...
Freight Elevator Door Control: An Opportunity for Wireless Technology
A comparison between hard-wired freight elevator door-control systems and wireless systems by Steven Reynolds, P. Eng and Henry E. Peelle, III, DM Introduction To date, wireless technologies have found only...
