IGM 15NCIII/2B

The Okamoto IGM 15NCIII/2B provides flexible grinding capability for precision components requiring multiple finished surfaces. Two independent grinding spindle systems support I.D., O.D., face, taper, and multi-step grinding in a single setup. Fine infeed control and programmable spindle speeds provide the process control required for close-tolerance bore and profile grinding.

 

IGM 15NCIII/2B Features:

  • Two individual grinding spindles with independent slide systems
  • I.D., O.D., and face grinding in a single chucking
  • Straight bore, taper, face, and multi-step profile capabilities
  • Conversational input for simplified machine programming
  • AC-driven table with minimum 0.00001-inch feed increments
  • Minimum diameter infeed increments of 0.00001 inch
  • Wheelhead with three programmable speeds
  • Variable-speed workhead from 100 to 850 rpm
  • Wheel dressing during automatic grinding operations
  • Automated grinding and dressing cycles
Internal Diameter

6"

Max Table Travel

20"

Description
Twin-Spindle Grinding for Complex Part Geometries

The Okamoto IGM 15NCIII/2B uses two individual grinding spindles with independent slide systems to expand process flexibility. This configuration supports I.D., O.D., and face grinding within a single chucking. Manufacturers can produce straight bores, tapers, faces, and multi-step profiles while minimizing part repositioning. The twin spindle grinding machine is built for applications where multiple precision surfaces must maintain a consistent relationship to one another.

 

Fine Infeed Control for Precision Bore Grinding

An AC-driven table provides minimum feed increments of 0.00001 inch for controlled positioning during demanding grinding cycles. Minimum diameter infeed increments also reach 0.00001 inch. Additionally, the wheelhead provides three programmable speeds to accommodate changing process requirements. A variable-speed workhead operates from 100 to 850 rpm, allowing operators to adjust grinding conditions for different workpiece materials, diameters, and geometries.

 

CNC Control with In-Process Wheel Dressing

The IGM 15NCIII/2B combines automated grinding functions with controls developed to simplify machine setup and operation. Conversational input assists with programming, while an interrupt function allows wheel dressing during automatic grinding cycles. This CNC internal grinder can maintain wheel condition during production, supporting consistent dimensions and surface finishes across repeated parts.

 

Standard Accessories
  • Automatic grinding cycle
  • Workpiece storage functions
  • Automatic dress cycle
  • Chuck cover (splash cover)
  • Chuck draw bar system
  • Diamond tool with holder
  • Table enclosure
  • Necessary tools and tool box
  • Leveling pads and bolts
  • Installation

 

Optional Accessories
  • Variety of I.D. grinding wheel spindles
  • Variety of coolant systems
  • Coolant temperature controller
  • Variety of chucks
  • Door interlock
  • Metric conversion kit
Additional Information
Internal Diameter

6"

Max Table Travel

20"

IGM 15NCIII/2B Specifications:

  • Internal Diameter to be Ground: 0.24″–6″ (6–150 mm)
  • Maximum Grinding Stroke: 5″ (125 mm)
  • Chuck Cover OD: 10″ (254 mm)
  • Workhead Spindle Speed: 100–850 rpm
  • Grinding Spindle: 7.5 hp (5.5 kW)
  • Standard Spindle Speed: 10,000 and 20,000 rpm