Cutter hubs and blades Nordson has redesigned cutter hubs and blades for its BKG underwater pelletizers. The new design is especially suited for producing micropellets and can be used on any Nordson BKG underwater pelletizer with throughputs from 1,000 to 35,000 kilograms per hour (2,200 to 77,160 pounds).
What's new? Nordson used the same metal as in prior versions, but used a casting process instead of machining. That reduced the volume of the cutter hub assembly, while counter-sunk fasteners for mounting the blades to the hub also improved efficiency.
Benefits More blades to cut the polymer into pellets as it exits the holes in the die for increased throughput. The cutter hub and blade assembly accommodates 36 angled blades instead of 18, or 40 straight blades instead of 26. Alternatively, the machine operator can opt to reduce wear to the die plates and blades by reducing rpm and maintaining standard throughput rates.
Nordson Corp., Roswell, Ga., 770-339-4177, www.nordsonpolymerprocessing.com
