Anchor Scraper
The mixing scraper, usually made of PTFE and depending on the size of the tank, is fixed on the stirring and rotates once to reach all the tank walls at the normal level of the tank
The scraper is usually 25 mm thick, rectangular, pin and other structures to make the scraper and stirring fixed together, screw structure will have dead corner, the scraper to fit the jar, otherwise there will be residual wall.
