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Singular or Dual Controlled Component
The definition of a dual (two) action as opposed to a singular (one) action polisher-
a) A Single action machine (constant circular orbit (RPM) has only one controlled component of a backing plate / pad. Due to its singular motion and high torque motor ( 10 Amp) it is able to produce friction while the operator applies pressure, allowing these machines to do a lot of work quickly
b) A Dual action machine (random elliptical orbit ( OPM) is one that has two controlled components of the backing plate / pad; orbiting around a centre spindle, while the baking plate / pad freely spins on its own axis. The backing plate mounting is off-centre, as the drive rotates centrifugal force moves the backing plate in an elliptical motion, to balance this motion a counter weight is fitted to counteract machine vibration
c) A Forced Rotation Dual action machine one action is the circular rotation and the second action is the random movement of the backing plate while it is rotating. It has both a circular motion (RPM) and a direct drive; elliptical orbital (OPM) motion with forced rotation, which means that the supplied back plate rotates by a gear mechanism in a forced circular motion, as the back plate rotates it also oscillates in a random pattern.
What makes this type of movement ?safer? is the comparatively lower torque (7.5 Amp) electric motor on these units, so that it's virtually impossible to apply too much concentrated pressure in one place at one time. Chances are good that when too much pressure is applied, the oscillating action will come to a stop thereby protecting the finish.
The definition of a dual (two) action as opposed to a singular (one) action polisher-
a) A Single action machine (constant circular orbit (RPM) has only one controlled component of a backing plate / pad. Due to its singular motion and high torque motor ( 10 Amp) it is able to produce friction while the operator applies pressure, allowing these machines to do a lot of work quickly
b) A Dual action machine (random elliptical orbit ( OPM) is one that has two controlled components of the backing plate / pad; orbiting around a centre spindle, while the baking plate / pad freely spins on its own axis. The backing plate mounting is off-centre, as the drive rotates centrifugal force moves the backing plate in an elliptical motion, to balance this motion a counter weight is fitted to counteract machine vibration
c) A Forced Rotation Dual action machine one action is the circular rotation and the second action is the random movement of the backing plate while it is rotating. It has both a circular motion (RPM) and a direct drive; elliptical orbital (OPM) motion with forced rotation, which means that the supplied back plate rotates by a gear mechanism in a forced circular motion, as the back plate rotates it also oscillates in a random pattern.
What makes this type of movement ?safer? is the comparatively lower torque (7.5 Amp) electric motor on these units, so that it's virtually impossible to apply too much concentrated pressure in one place at one time. Chances are good that when too much pressure is applied, the oscillating action will come to a stop thereby protecting the finish.
An extract from one of a series of in-depth, unbiased detailing articles ? TOGWT ? Ltd Copyright 2002-2008, all rights reserved.