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 "Escalator modernization?" Is it needed and how much is this going to cost?
Cost for a full modernization can run up to $100K +
That question has often been asked and the reply
depends on so many variable factors that to pin down an "off the cuff"
response is unrealistic until several facts are known, and the most
important of all: what is the goal? Appearance? Dependability? Code
compliance. New safety and operating features? Has poor maintenance and
neglected repairs resulted in a condition that when looked at as a
whole, generated the question: how much to replace the entire unit?
So we need to know the goal. In most cases it's a matter of dependability, operating characteristics, and lastly aesthetics.
Escalators are a simply complex piece of machinery. Simple in that
they generally have one speed, usually run in one direction for most of
the time, have no dispatching (destination's are limited), and no
leveling control, and finally no door operation.
Complex is the chain of events that have to happen to make that
simple function happen. Two parallel chains running the length of the
unit and connected via a network of gears and a driving electric motor
with a brake is all whizzing around with slight clearances. Steps
attached to perpendicular axles and two endless loop handrails driven by
linked gear-work/rollers. All of this encased in a metal framework
called a truss.
To my knowledge there is just one major elevator/escalator company
that offers an "escalator modernization package" while another smaller
company is developing a viable escalator modernization package that
features non-proprietary controls.
Let's Consider the "Why"
My first question is; how did we get to the point
where a modernization or complete replacement is seen as a viable
option? Did the traffic outweigh the duty? Age? Natural disaster,
flooding? Want modern aesthetics? Combination of the above? We suspect a
lack of reliable operation and the prospect of costly repairs is the
main driver.
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