One of the automative filter is an outer scraper filter, which rotates a scraper that is powered by a motor to remove contaminants from the filter screen’s outer surface. It is used for highly viscous liquid filtration with strict accuracy requirements and has a filter rating of 50–500μm.

The liquid flows through the filter element surface from the outside to the inside as it enters the filter through the intake. The outlet, via which the liquid exits, is attached to the bottom of the filter element. The cleaning process is started by the predetermined time or differential pressure value when the number of contaminants trapped on the surface of the filter element reaches a specified level.

The scraper blades attached to the filter element’s surface rotate under the power of the speed reducer to remove contaminants. The pollutants travel along the blades, drop to the bottom of the filter, and then enter the cone-shaped particle collection device.

The bottom of the filter is where these pollutants are gathered. To drain off the waste liquid with high impurity concentration, the drain valve at the bottom of the filter must be opened on a regular basis. If necessary, recycled liquid waste can be discharged.

Just like all the other automative filters, the outer scraper self-cleaning filter can operate 24 hours continuously. The collection cone is at the bottom of the filter, gathering all impurities which also contains reusable high-value materials.

For convenient and simple installation, every outer scraper self-cleaning filter will be pre-assembled and tested by Brother Filtration. We want only to provide high-quality products and full service for our customers.