This article examines various elements of elevator drive technology. The technical demands placed on elevator technology have grown steadily in recent years. For example, conventional electrical drive technology with gear motors is increasingly replaced by torque drive systems, usually on the basis of permanent-magnet synchronous motors. For new construction and modernization projects, buyers have given…
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Industry labor costs and suggestions as to how one can lower them The best projections regarding future trends in the elevator industry predict already-high labor costs significantly increasing over the next five years. Some estimate the hike to be as steep as 8% per year in that period. As labor costs soar, businesses often see…
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Absolute encoders for direct drives LM Mechanical Lift System Fritz Kübler GmbH Zähl-und Sensortechnik’s LM 3 and LM 5 are preassembled elevator systems for shaft-copying, designed with bearings to make a significant contribution toward increased safety and reliability in lift technology. The units also feature a vibration-resistant encoder-mounting fixture and smooth-running toothed belt to provide…
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India’s economic trends and challenges, with an emphasis on its rapid urbanization In a world battered by financial meltdowns, India’s economy has performed well, with an average annual gross domestic product growth rate of 8.1% between the periods of 2007-2008 and 2010-2011. Strong economic growth has resulted in rapid urbanization. Of India’s total population (1.2…
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City receives outdoor escalators to improve traffic flow throughout its steep hillsides. On December 26, 2011, the Colombian city of Medellin inaugurated a giant outdoor escalator for use by residents of one of its poorest slums. People living in the Comuna 13 district, which clings to a steep hillside, previously had to climb hundreds of…
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This industry professional explains how respect, confidence and hard work can lead to success. From Paris to Africa and Atlas Elevator Co. to Mitsubishi Electric, Liên Randle has experiences worth sharing. Born in Florida to a U.S. Air Force pilot and Vietnamese mother, Randle has lived in several fascinating places – Hawaii, Japan, France and…
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A detailed examination of published accounts of cyclic-elevator installations One of the first published accounts of a cyclic elevator installation appeared in the August 27, 1880 issue of British Architect and Northern Engineer. The magazine featured an article on the new Glasgow Herald building (completed in November 1880) including the statement, “An elevator is being…
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Demonstrations of methods for firefighter service operation in elevators An Elevator Rescue Operations class was held in Orange Beach, Alabama, at the Orange Beach Fire and Rescue Administration building from February 29 to March 2. The class was mirrored all three days and consisted of classroom instruction followed by a hands-on demonstration led by Dan…
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This article provides several equations pertaining to traffic flow. by Wang Sheng, Yao Lianghong, Luo Zhiqun and Wan Jianru Elevator traffic flow is fundamental in reasonable elevator configuration. The passenger-flow data per day can be predicted by forecasting five kinds of typical traffic patterns. Elevator traffic-flow prediction based on the Monte Carlo method describes the…
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A brief overview of the company’s new facility Shanghai BST, established in 1998 as a manufacturer of cable harnesses, opened a new manufacturing facility in July 2011. With an increased area of 52,200 m2, the facility gives the company the capacity to manufacture electric products, cables and door operators. This base, together with five workshops…
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