Rotor ring with reference A-17.01.21 made of wear-resistant materials, compatible with manufacturer reference number 21890S for turbine SWL300 - SWL501 of the TAF-GUTMANN shot blasting machine.
The Rotor ring is polished, balanced and hardened to 62-65 HRC, notably improving its efficiency against wear.
Hardness is guaranteed by a hardness certificate.