Continuous duty vacuums are types of industrial vacuum cleaners that are intended for uninterrupted use. Factories and manufacturers whose processes produce a steady output of debris like metal flakes, wood pulp or sawdust as well as other kinds of byproducts need an efficient means of disposal for those materials. Continuous duty vacuums run on little horsepower at slow speeds and offer quiet operation.
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Continuous duty vacuums are often quite large and heavy, which can make them difficult to maneuver. However, when they are regularly used to clear debris created by a manufacturing process, it is often not necessary to move them. They are technically considered portable vacuum systems, and many varieties are designed with four locking casters and can be moved on demand. They are most helpful in contexts where vacuuming is an everyday requirement of a process or procedure; bakeries, shops, packaging facilities, construction sites and professional cleaning companies often make use of continuous duty vacuums. They are usually low maintenance and easy to clean, and they are cost effective for those reasons. Continuous duty vacuums also contribute to productivity because of the small amount of maintenance and cleaning attention they require.
Continuous duty vacuums are often composed of a cylindrical tank and casing. Some are able to filter particles as small as 0.5 microns using pulse jet filters. Their collection enclosures can be designed without filter bags; this makes them easy to empty. Continuous duty vacuums are able to clean a wide variety of dry materials, but there are currently few continuous duty vacuums that allow for continuous liquid collection. Depending on the size and power of a given continuous duty vacuum, it may be designed with multiple hose inlets, which allows for multiple workers to vacuum at once; this reduces the need for extra vacuum systems. The casing and tanks can be made of stainless steel or fiberglass reinforced with carbon. Continuous duty vacuum systems can also be designed to be explosion proof, which can be necessary in work environments where volatile particles are present. Equipping a continuous duty vacuum with a HEPA filter not only helps to improve vacuuming efficiency, but it also helps to improve workspace air quality as the vacuum operates. The kind of workspace in which a continuous duty vacuum is necessary would most likely benefit from the additional air filtering that this would offer.