There are two distinct types of machine available. One derives torque from its high speed (a motor with brushes / armature and is physically light in weight) and the other is a split phase ac motor of approximately 1400 rpm which is considerably heavier.
When considering a new or replacement waste disposer thought should be given to the number of people the machine needs to service and the expected life of the machine. An incorrectly sized machine can result in premature failure with price generally reflecting quality.
