Commercial Garbage Disposers with rotor-fixed cutting teeth are the most common varieties, although some may be equipped with swivel cutting teeth or a hammer-mill-type grinder. In all instances, a cutter rotates at a high speed inside a stationary shredder ring. As centrifugal force moves foods through a shredder, waste washes into the lower area of a unit and down a drain or into a compactor.
Disposer motors range from 1⁄2 hp up to 10 hp. Smaller horsepower units can attach to sinks with no support necessary. More powerful disposers require a leg that reaches the floor for support. Horsepower determines shredding capability, as well as their capacity for continuous operation. Light-duty disposers are intended for use in delis and convenience stores. Heavy-duty, small-, medium- and large-capacity disposers are designed to meet the needs of larger operations. The body size of a disposer determines its waste-handling capacity.
A standard electrical wall switch can operate light-duty disposers. Larger disposers have a variety of electronic controls from which end-users can choose. The most common electronic control is a manual reverse switch that allows shredding in both directions. This feature can help unjam a stuck unit and extend the life of a disposer. Automatic reversing controls for disposers start a unit in the opposite direction upon activation. Designed with the correctional market in mind, some disposers sit several inches offset from a sink drain to prevent tampering. Similarly, operators can equip most units with tamper-proof screws. Disposer accessories include an unjamming wrench, which staff can insert into a jammed machine and twist to dislodge stuck objects. Other accessories are magnets that prevent flatware and other metallic objects from falling into a unit. In the safety realm, operators can purchase many disposers with guards that prevent individuals from reaching into an operating unit.
Commercial disposers are most commonly found in food prep and warewashing areas. They are designed to provide maximum shredding for the disposal of food and non-food waste.
Commercial garbage disposers allow for speedy elimination of waste, assisting in insect and rodent control.
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