Head pulley conveyor belt cleaners remove the residual material, called carryback, that clings to the belt's surface and would otherwise not discharge at the unloading point. This prevents the residual material from being carried back on the return run and eventually falling off at various points along the belt line which causes housekeeping and maintenance problems.
The majority of belt cleaners are blade-type cleaners which use a tensioning system to hold the blade edge against the belt as it scrapes material from the surface. Blade material varies from rubber or urethane to hardened alloy or tungsten carbide and is determined by the conveyed material’s characteristics.
In addition to blade-type cleaners, there are specialty-type cleaners that are selected based on plant preferences, conveyor specifications, and cleaning requirements. Rotary-type belt cleaners are either powered by the belt’s motion or by an electric motor, as in the case of brush cleaners. Pneumatic, air knife belt cleaners use pressured air to shear off the carryback.
AIRMATIC-supplied conveyor belt cleaners are especially efficient at moving carryback and preventing its adverse effects on conveyor operation. Our experience and understanding of conveyor belt cleaning equipment enables us to help select the most suitable solution for your belt cleaning requirements.
Installed on the face of the head-pulley, this group of belt scrapers is positioned to reduce carryback material by removing the majority of it at the discharge. In this install position, the cleaners can serve as a pre-cleaner in a multi-cleaner system or as a standalone cleaner.
Installed where the belt leaves the discharge pulley, this group of belt cleaners is positioned and tensioned to scrape-off residual carryback material in a multi-cleaner system, or act as a standalone belt scraper for belts carrying dry materials.
Installed close to the head pulley, this group of specialty belt cleaners, classified as rotary cleaners are effective on dry materials and on belts, modified to have uneven belt profiles such as ribs, pockets, molded shapes or some other raised or indented type surface
An essential item in any conveyor belt scraper installation is a correctly chosen and well-maintained tensioner. The right tensioners will maintain consistent pressure to keep blades against the conveyor belt for the most effective cleaning – regardless of the blade’s wear level.
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