About TOYO Advanced Technologies - Japan

The history of Toyo Advanced Technologies dates back to 1929. Today the company has grown to become Japan’s leading manufacturer of internal grinding machines which has the top class market share, and is widely known simply as “Toyo-the company for internal grinding machines.”

Toyo manufactured first machine tool model in 1940, and in the years since then total production has reached over 10,000 units. Toyo internal grinding machines are used by more than 1,000 companies in Japan and overseas. TOYO brand machine tools are backed by ISO 9001 certification, the international standard in quality assurance. They are widely employed and highly regarded in many key industrial sectors, including automobiles, electric household appliances, and bearings.


CNC Internal Grinding Machines, Chuck Type


Width of workpiece that can be chucked - 80mm.


Width of workpiece that can be chucked - 150mm.


Width of workpiece that can be chucked - 200mm.

CNC Internal Grinding Machines, Centerless Type


For oscillation grinding of flat internal surfaces.


Oscillation and plunge options are available.


Designed for medium- to high-volume production.

CNC Vertical Grinding Machines, Chuck Type

TVG Sries

Models which meet work sizes up to 900mm ID are lined up.

Ultra-large Vertical Grinding Machine Series

High-precision and High efficient machining can be achieved.

CNC Internal Grinding Machines, Centerless Type

TVG Sries

High-variety small-lot production, and other variable-type/quantity production.


OD grinding machine is also available with drop type dresser and column position offset.