The IGM-2MB is engineered to excel in high-volume production environment, making it truly the production man’s machine. This Okamoto MDI internal grinder is built to withstand the demands of continuous, rigorous work, making it a cornerstone of efficiency, precision, and reliability in any production setting. The IGM-2MB features a linear slide and ball screw table motion, which delivers high-speed table movement speed up to 800 inches per minute (ipm), enhancing productivity and accuracy.


  • Rigid construction. Superb Accuracy.
  • Standard 5hp grinding spindle motor.
  • MDI Control with 8.4″ color LCD display.
  • User friendly control with conversational software. Teach function allows easy set-up of grinding processes.
  • 36 program storage capacity.

IGM-2MB Specifications

  • Internal Diameter to be Ground: 0.24″ ~ 8.0″
  • Maximum Grinding Stroke: 8″
  • Swing over table: 24″
  • Workhead Spindle Speed: 50 ~ 850 rpm
  • Grinding Spindle: 5 hp
  • Floor Space (W x D x H): 96″ x 54″ x 69″
  • Weight: 6,160 lbs


The IGM-2MB is equipped with a standard 5hp grinding spindle motor for a robust performance. The machine also features an MDI Control, showcased on an 8.4″ color LCD display for intuitive operation and easy navigation. With user-friendly control, conversational software, and teach software, operators can efficiently reduce setup time, and manage grinding processes without extensive training. The IGM-2MB is a comprehensive solution for internal grinding that was designed by Okamoto engineers to meet the high standards of production without compromising on quality or efficiency.


Whether it’s for automotive components, precision machinery parts, or any application requiring meticulous internal grinding, this internal grinder provides a reliable and effective solution. This Okamoto MDI internal grinding solution is ideal for any metalworking application that requires industry leading technology and precision. With its combination of speed, accuracy, and user-friendly features, the IGM-2MB is truly the production man’s machine, setting new benchmarks in the industry for internal grinding solutions.


Standard Accessories

  • Chuck Cover (Splash Cover)
  • Chuck Draw Bar System
  • Diamond Tool with Holder
  • Necessary Tools and Tool Box
  • Leveling Pad and Bolts
  • Table Enclosure

Optional Accessories

  • Scroll Chuck
  • Power Chuck
  • Coolant System
  • Spindle Speed from 10,000-60,000rpm
  • Mist Collector

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