Wotech has been offering Sleeve rings to Hitachi, Japan for more than 10 years. And we are proud to say that we are one of the Top 3 supplier in Sleeve ring area.
There are kinds of sizes in production. The outer diameter differ from 400mm-1102mm and the precision will be 0.03mm. To guarantee the quality, all of the part will be 100% inspected by CMM.
The process for the sleeve rings will be: Forging→ Normalizing→ Rough Machining→Quenched and Tempered- →Semi-machining-→ Induction heat treatment →Tempering→ Final Machining →Grinding. All of the Machining process and Heat treatment will be done in-house to ensure the delivery and quality.
Wotech is always keen on the quality and service. And the best evidence is more than 10 years cooperation with customer.