Okamoto’s innovative design and cutting-edge technology merge to create the ultimate grinding solutions in the PRG-DXNC Series. These CNC Rotary Grinding Machines are a testament to engineering excellence, designed to enhance productivity and ease of use through 2-Axis simultaneous CNC control. This feature significantly expands grinding flexibility, making these machines ideal for both single and multiple workpiece grinding applications. Perfect for high production precision work, Okamoto CNC Rotary Grinding Machines set the industry standard for high efficiency and precision.
  • Rigid heavy Meehanite cast construction for accuracy.
  • Multi-step grinding – grind up to 4 steps in a single set-up.
  • Graphic conversational input simplifies programming.
  • Powerful 10hp grinding spindle motor.
  • No table overhang assures optimum accuracy.
  • Ergonomically designed for optimum operator convenience.
  • Versatile table swivel +/-5 degrees.

PRG-DXNC Series Specifications: 

  • Diameter of Chuck: 24″ to 47.24″*
  • Maximum Dist. under Wheel: 10.8″
  • Rotary Table Speed: 20 ~ 150rpm
  • Grinding Spindle: 10 hp
  • Floor Space (WxDxH): 65″ x 101″ x 102″ / 71″ x 115″ x 102″*
  • Weight: 8,820 / 11,025 lbs*

*Depending on model


The PRG-DXNC Series features Rigid Heavy Meehanite Cast Construction for vibration-free performance, and eliminated table overhang to increase accuracy and quality in the finished product. It’s also equipped with a Powerful 10hp Grinding Spindle Motor to deliver consistent results in a wide range of materials and grinding operations. Beyond its structural advantages, the Okamoto CNC rotary grinders incorporate advanced technology to streamline the grinding process. For example, the User-Friendly Graphic Conversational Input allows operators to easily set up and execute complex grinding tasks with minimal effort to maintain productivity and precision. In addition, the multi-step grinding efficiency enables them to grind up to four distinct steps in a single setup, which reduces cycle times and maximizes throughput without sacrificing precision.


The PRG-DXNC Series sets a new standard for CNC rotary grinding, offering a perfect blend of high-speed precision and user-friendly operation. Whether for aerospace components, automotive parts, or intricate custom pieces, the PRG-DXNC Series delivers the flexibility, power, and precision needed to keep your operations at the cutting edge of technology and productivity.


Standard Accessories
  • Grinding Wheel
  • Wheel Adapter
  • Diamond Tool with Holder
  • Necessary Tools
  • Leveling Bolts and Base Plates
  • Electro-Magnetic Chuck
  • Chuck Control with Automatic Demagnetizer and variable Hold
  • Chuck Interlock
Optional Accessories
  • Coolant System with Magnetic Separator
  • Coolant System with Magnetic separator and Dust Suction
  • Overhead Wheel Dresser
  • Automatic Oil Temperature Regulator
  • 15 hp Grinding Spindle
  • Grinding Wheel Adapter
  • Grinding Wheel Balancing Stand with Arbor
  • Wheel Balancing Arbor
  • Machine Light

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