PUCEST: Lower Belt Scraper Roller
What this video shows
This video shows a motor driven PUCEST scraper roller on the return side of a conveyor. Its flexible lamella rings rotate against belt travel to remove carryback. The footage shows the operating arrangement, not a measured cleaning efficiency or service life.
What the footage shows
The video shows the scraper roller beneath the return belt, its motor and shaft, and the flexible lamella rings contacting the belt. It also shows removed material leaving the cleaning zone.
Process challenge
Carryback is material that remains attached to the belt after discharge. NIOSH notes that this material can dry, fall from the return side and release respirable dust around idlers, drives and pulleys.
Demonstrated solution
PUCEST presents a motor driven roller that rotates against belt travel. The flexible rings contact the lower belt and remove retained material. The video demonstrates the arrangement, while cleaning efficiency, wear and belt compatibility require project evidence.
Technical overview
Key features
- •Motor driven rotating cleaner
- •Flexible lamella rings mounted on a shaft
- •Rotation against the direction of belt travel
- •Position on the lower return belt
Benefits
- •Active removal of carryback from the return belt
- •Replaceable ring arrangement shown by the manufacturer
- •Visible access to the cleaner assembly
Typical applications
- •Conveyors with persistent carryback
- •Mineral and aggregate conveying
- •Bulk solids processes where return side residue requires control
About this video
The PUCEST video shows an active cleaner on the lower return belt. The visible assembly includes a motor, a shaft and flexible lamella rings that rotate against belt travel.
Carryback and the return belt
NIOSH defines carryback as material that remains attached after the belt passes the main discharge. As retained material travels over return idlers, it can fall from the belt and release respirable dust. Belt cleaning aims to remove that material close to the discharge area.
A rotating cleaner is one possible arrangement. The footage shows where the PUCEST roller acts and how its rings contact the belt. It does not show a controlled comparison with another cleaner.
What to inspect in the footage
- The location of the roller on the return belt.
- The direction of roller rotation relative to belt travel.
- The contact pattern across the belt width.
- The route taken by removed material.
- Access to the drive, shaft and ring assembly.
Selection and validation
Cleaning performance depends on the material, moisture, belt surface, belt speed, contact pressure and cleaner position. Fine respirable material may remain after mechanical scraping. NIOSH notes that some duties require more than one scraper or a belt wash.
Confirm belt compatibility, guarding, drive protection and the safe isolation method. HSE guidance states that conveyor cleaning and maintenance must only proceed after proper isolation where access to dangerous moving parts is required.
Evidence boundary
The PUCEST page supports the named construction and application example. PBV does not infer a cleaning percentage, wear life, universal belt compatibility or suitability for food and chemical processes. Those points require current product data and project evidence.
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