Koyo produces various grinding machines, assemblies, spindles, precision ball screws, handle and universal joints, and drive shafts for industry. Additionally, Koyo performs applied engineering research and production engineering research.

• Disque Grinders
• Grinders centerless
• Grinders cylindrique comprenant Plain & Angle Head
• Grinders cylindrique universelle
• Grinders internes
• Moulins à Face
• Planetary Grinders
• Rectifieuses planes Rotary
• Tranchage, et découpage en tranches Grinders