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.

• Centerless Grinders
• Cylindrical Grinders Including Plain & Angle Head
• Disc Grinders
• Face Grinders
• Internal Grinders
• Planetary Grinders
• Rotary Surface Grinders
• Slicing, Dicing & Wafering Grinders
• Universal Cylindrical Grinders