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Old November 2nd, 2007, 07:31 PM   #1
hkskyline
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Highrise Lift Technology

Lift technology continues to reach new heights in HK
31 October 2007
South China Morning Post



The sky's the limit for lift companies in Hong Kong as the city's high-rises continue to reach new heights.

High-rise lift technology has changed dramatically over the years, with passengers barely noticing the difference, apart from aesthetic changes and perhaps the lack of a lift operator for those old enough to remember.

Otis Elevator lays claim to being the oldest - 154 years - and largest lift company in the world and has been operating in Hong Kong for longer than any others. Next year it celebrates 120 years of doing business in Hong Kong and 70 years of being directly established with a local company.

In 1888, the company installed Hong Kong's first traction lifts at the then Hong Kong Hotel and has since been involved in landmarks around the town and in Macau, including Central Plaza, Hong Kong Bank's headquarters, Macau Tower and Two IFC.

Otis Hong Kong managing director Stephane de Montlivault said technology and safety had taken lifts to new dimensions.

His company's latest high-rise mover is called Skyway, which is operational at Two IFC.

It provides solutions to issues most commonly faced in tall buildings - rope sway, core space and ride quality.

The single-deck units are designed for speeds in excess of 10 metres per second and ultimately will meet speeds of 15 metres per second, while the double-deck units are designed for 10 metres per second.

Double-deck lifts consist of two cabins riding on top of one another in one single hoistway. This allows passengers to get in the lift from two different levels at the same time, with the lifts dispatched from the lobby to even or odd floors.

Mr de Montlivault said this system was extremely efficient as it increased the use of rentable office space - the space occupied by the lifts is minimal as they handle twice the traffic in the same hoistway.

"There is an interesting variation to this, called 'super double-deck', it's a system which none of our competition has. It is born out of more demands from architects to have differences in floor-to-floor heights," he said.

Otis also boasts the Compass Destination Entry System of traffic control.

As office workers use their pass to go through a lobby gate, they are directed by the system to a car that will take them to their floor.

By assigning passengers to specific floors, it allows each car to make only about a quarter of the stops normally required in heavy traffic periods.

Another giant in vertical people-moving is Jardine Schindler Group, a joint venture between Jardine Matheson and the Schindler Group of Switzerland. Jardine Schindler, as with Otis, is working on One Island East and not long ago completed the AIG Tower.

Other landmarks using Schindler lifts include Times Square, Exchange Square, many of Hong Kong's major hotels, and the Venetian Macao.

Jardine Schindler services 12 countries in Southeast Asia through its Hong Kong offices that carry a staff of almost 1,000.

Group new business director Rob Seakins said every project had its own unique issues.

"You end up getting a design from an architect and then you have to integrate a lift system into that, so every concept can have its own unique challenges to make it workable and reliable for the users," he said.

"That's one of the things we pride ourselves on - it's good to have the latest things, but we're stringent on the protocols we have on the release of new products in the marketplace, and proven reliability is a definite. You've got to innovate, but you've also got to be reliable."

Jardine Schindler is supplying 83 lifts, including 40 double-deck lifts, for the 490-metre-high International Commerce Centre (ICC), where the lift shafts will be longer than in any other building in the world.

The company is also making inroads into power-saving technology, including the use of gearless machines with converters that feed regenerative power back to the main power line.

Other innovations from the company include low standby consumption and more environmentally friendly manufacturing methods.

"There have been subtle changes recently where we've moved away from the traditional steel rope to solutions in terms of load-carry elements where the rope is flattened out and encased in polyurethane, which enables Schindler to use smaller, more energy efficient motors," Mr Seakins said.

Most of the manufacturing is done in the mainland or Switzerland and finished at other centres around the world.

"They're shipped into Hong Kong as one product and we install them locally. Some of the finishes we source locally with interiors and customised fixtures," Mr Seakins said.

"We can source a whole elevator from China if we choose, although more of the high-end equipment that we use in buildings like AIG and ICC is predominantly sourced from Switzerland."
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Old January 8th, 2008, 11:35 AM   #2
hkskyline
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Japanese makers vie to develop world's fastest elevators
Kyodo News

TOKYO, Jan. 8 -- The race is on among Japanese manufacturers to develop the world's fastest elevators, according to the makers.

Besides making further inroads in the domestic market, they are aspiring to equip high-rise buildings springing up across the world with state-of-the-art elevators that can move at speeds of more than 1,000 meters per minute.

Demand is particularly high in Middle Eastern nations awash with oil wealth and China, whose economy is continuing to grow robustly.

Last December Toshiba Elevator and Building Systems Corp., for example, said it has landed a 2.3 billion yen order to supply 93 elevators for use in a national project to create a brand-new urban complex on uninhabited Reem Island in the United Arab Emirates.

Other major players in the sector include Mitsubishi Electric Corp. and Hitachi Ltd., which are testing their prototypes at specially built labs.

In September last year, Mitsubishi set up a 173-meter testing tower to try out its newest elevator in Inazawa, Aichi Prefecture. Not to be outdone, Hitachi is due to break ground in February on a similar facility in Hitachinaka, Ibaraki Prefecture, which will be 203 meters high.

Hitachi's tower is the world's tallest such structure and Mitsubishi's the second tallest.

According to the Japan Elevator Association, the fastest elevators in Japan currently are those at the 70-story Landmark Tower in Yokohama, which travel 750 meters per minute.

The world's fastest are the elevators inside Taiwan's 101-story Taipei 101, the world's tallest skyscraper. They were supplied by Toshiba Elevator. They whisk people to the top of the high-rise at a speed of 1,010 meters per minute.

Hitachi is raring to break that record, claiming that its planned testing tower will allow it to try out an elevator with a speed of 1,300 meters per minute.

In the Middle East and China where high-rise office buildings, hotels and shopping malls are cropping up at a rapid pace, demand is strong also for elevators that can accommodate many people.

Companies such as Hitachi are trying to develop products with a load capacity of 5 tons, equivalent to the combined weight of some 70 people.

For the sake of efficiency, double-decked elevators are being used in an increasing number of buildings both at home and abroad.

In developing high-speed elevators, securing safety is a top priority. Manufacturers are conducting research on advanced control systems including mechanisms to safely bring elevators to a halt in the event of an emergency and minimize the vibrations to improve comfort for users.
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