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The tracton machine is mounted on the machine beam of top floor,
compatared with the conventional elevator, it has no machine room with
cost saving. At the same time it makes the building appearance much more
compact and improves the rate of utilization for building space
accordingly. adopting the gear less synchronous external rotir traction
machine, to achieve energy saving, as there is no slowing down device so
there is no need for gear lubricant, wich will save the cost of its
replacement, No power loss so slowing down device in the
machine-room-less elevator and the use of high efficient permanent
magnet motor save more than 40% energy consumption and the electricity
expenditure for the user, compared with the conventional elevators.
There
is only one motion component in this machine which s of gearless
structure with slow speed rotation, thus ensure long stable running and
superior leveling accuracy.
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