The
professional treadmills, used in gyms, are nowadays usually equipped
with AC motors, instead of DC motors. DC motors have a large
maintenance (changing the brushes, high wear), while maintenance for
AC motors is almost nothing and the duration is up to 10 times
longer.
In addition
to the much higher duration of AC motors, even the controllers used
with AC motors last much more. They consist of an inverter that is
normally equipped with protection systems operated by a controlling
chip and this allows a much greater functional life.
The Inverter
can be programmed with over 100 parameters including, for example:
curve of acceleration or deceleration, load capacity (minimum and
maximum), minimum and maximum speed, breaking, time variation of
torque. Since the inverters are used a lot in the industrial sector,
the branded ones (such as Toshiba) have high degrees of reliability,
and often the manufacturer guarantees them for a long period (5 years
for Toshiba).
The AC
mechanics is more secure. You can transform any home use treadmill
using top-grade components to an AC treadmill, thanks to the retrofit
kit provided by Parts For Treadmill.
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