These R/R abrasive belts from Koyo-Sha offer high durability and uniform grinding action for materials like steel, stainless steel, aluminum, and brass. Available in multiple belt types (EAK, GAK, SAK, JWK, JCK) and broad grit ranges, they are optimized for both wet and dry operations in professional workshops.

Koyo-Sha Abrasive Belt R/R Series

Koyo-Sha’s R/R Abrasive Belt Series features resin-bond technology and twilled cotton fabric for improved heat and wear resistance. Their jointed design supports efficient cutting, minimal clogging, and consistent surface quality, making them ideal for fabricators, metalworkers, and industrial finishing processes.

Features

Heavy-Duty Resin Bond & Twilled Cotton Backing

Ensures durability and flexibility for rigorous grinding across shifting contours.

Custom Width and Length Options

Manufactured to specific customer needs; common sizes include 100 × 915 mm or 75 × 3350 mm belts.

Seamless, Evenly Jointed Belt

Prevents thickness discrepancies, promoting smooth grinding and extended belt life.

Wide Selection of Grit Types (EAK, SAK, JWK, JCK)

Tailored for diverse material types—from hardest steels to soft aluminiums and brass.

Broad Industry Applications

Ideal for sectors such as automotive, aerospace, steel fabrication, and more requiring precision and consistency

Specification	Details
Backing Material	Twilled cotton cloth
Bond Type	R/R (Resin bond)
Abrasive Types	A (Aluminum oxide), WA (White alumina), C (Silicon carbide)
Available Belt Types	EAK, SAK, JWK, JCK
Standard Sizes	100 × 915 mm and 100 × 1525 mm (other sizes by request)
Grit Size Range	40 to 600 (depending on type)
Join Options	Designated joint types, commonly D-joint