Replacement Conveyorscrapers

What is the difference between a primary and secondary scraper?

Conveyor belt cleaning systems typically employ two types of scrapers: primary cleaners and secondary cleaners:

Primary belt cleaners

Primary belt cleaners (also called precleaners) are installed at the head pulley or discharge pulley and provide the initial cleaning of the conveyor belt surface. They remove the majority of the adhered material. Primary scrapers can withstand the impact of bulk material and are made from materials such as polyurethane or tungsten carbide

Secondary belt cleaners

Secondary belt cleaners are positioned a short distance behind the primary cleaner and remove residual material left behind by the primary scraper. Secondary cleaners often feature urethane blades or brushes that conform to the belt surface and remove finer particles, dust, and sticky materials.

Which side of the conveyor system is the scraper located on?

Conveyor belt scrapers are typically installed on the return side of the conveyor belt, where the belt travels from the head pulley back to the tail pulley. This positioning allows the scrapers to remove material that has adhered to the belt during the conveying process, preventing it from accumulating on the return side or being carried back to the loading point.

Primary scrapers are mounted at or near the head pulley, where the belt begins its return journey.

Secondary scrapers are installed a short distance behind the primary scraper, typically a few feet away from the head pulley.

In some cases, additional scrapers or belt plows may be installed along the return side of the conveyor to further remove material and prevent buildup on the idlers and other components.