23. December 2010 18:11
If you speak with an elevator installation consultant, then they will be able to recommend to you the best type of elevator design to use for your requirements.Lifts also vary in their internal design and some can be very plush with mirrors and carpeting that make them pleasant to stay in. Most will also use music to try and create a calming atmosphere. This then reflects well on the business that owns the lift and means that customers/clients arrive in a good mood. This then is an important area of consideration for businesses who should use lifts consultation to ensure they have the best possible lifts in terms of appearance, performance and maintenance/running costs. As well as considering whether you should use machine room-less elevators then, you also need to consider the interior of the lifts themselves.
14. September 2010 16:26
You need to record the period for which the car’s doors remain open at each floor. Elevator passengers typically can exit a car in two or three seconds, and can enter a car in about four seconds. Doors that remain open for much longer than this only slow down service. Also important in this exercise is the performance of the door reversing device. When the doors are blocked, they should open again immediately, and then attempt to close again right away. Again, any delays only reduce service. Once the doors are closed, the car should move away immediately.
When measuring the speed with which a car moves from floor to floor, managers must consider the type of hoisting mechanism, and its horsepower, employed by the elevator. A geared elevator, which typically moves at speeds up to 400 feet per minute, should be able to travel the height of ten floors in five or six seconds. Higher speed gearless elevators, which can move 500 feet per minute or faster, can cover the same ten-floor span in four or five seconds. Conversely, slower hydraulic elevators, which typically are limited to speeds of 150 feet per minute, take up to eight seconds to travel the ten-floor distance.
5. September 2010 14:15
There is always scope for elevator maintenance program to improve in case of inefficiency in maintenance, no modernization program, no matter how elaborate, will allow the system to perform effectively. At the times when the elevator service is substandard, managers must take help of consulting lift services and take deliberate steps to determine the exact cause of the service shortfall before making any decisions to repair, replace or modernize the system.
The first step in equal car performance analysis is to establish that if all elevators in a group are performing equally. In order to do that, managers can use a stopwatch and chart the time it takes each car to perform its various functions.
At the initial stage, measure how quickly each car’s doors open and close at each floor. Most passengers agree that an elevator’s doors should open as quickly as possible. However, the speed at which the doors may close is limited by elevator codes that prevent elevator doors from using more than 7 foot-pounds of kinetic energy and 30 pounds of thrust. Generally speaking, a 42-inch-wide, centre-opening, hollow metal door can be expected to close in 2.3 seconds. Lift consulting engineer are aware of this and will inform you the needful measures.