OGM 820UDXB

The Okamoto OGM 820UDXB combines precision OD cylindrical grinding with standard internal grinding capability. Its rigid machine structure, servo-driven table, and automatic grinding cycle support accurate, repeatable processing for toolroom and production applications. With ID grinding included as standard, manufacturers can handle a broader range of cylindrical components on one machine.

 

OGM 820UDXB Features:

  • Precision OD cylindrical grinding for toolroom and production applications
  • Standard ID grinding attachment for expanded processing capability
  • Automatic grinding cycle for repeatable operation
  • Heavily ribbed Meehanite cast construction
  • AC servo-driven ballscrew table
  • Maximum grinding diameter of 7.87 in.
  • 19.84 in. distance between centers
  • 8.6 in. swing over table
  • Workhead spindle speeds of 150 / 250 / 400 rpm
  • 2 hp grinding spindle
  • Compact 113 × 74 × 62 in. machine footprint
Max Table Travel

26.58"

Maximum Part Diameter

7.87"

Description
Precision OD Grinding for Toolroom and Production Applications

The Okamoto OGM 820UDXB is an OD cylindrical grinder built for precision toolroom work and demanding production environments. Heavily ribbed Meehanite cast construction provides the rigidity needed to control vibration during grinding. The machine combines this stable foundation with an AC servo-driven ballscrew table for smooth movement and precise positioning. These features support consistent dimensional accuracy and surface finish across individual parts and repeated production runs.

 

ID and OD Grinding on One Machine

A standard ID grinding attachment expands the OGM 820UDXB beyond external cylindrical grinding. Manufacturers can use the machine for both ID and OD grinding applications without investing in separate equipment for each process. The standard configuration also includes a tailstock, automatic grinding cycle, and diamond dressing device. This combination gives job shops and production facilities greater flexibility when processing shafts, tooling, and other precision cylindrical components.

 

Automatic Grinding with Controlled Table Movement

The OGM 820UDXB uses automatic control to support repeatable grinding while maintaining straightforward machine operation. Its AC servo-driven ballscrew table provides controlled positioning throughout the grinding process. An ergonomic machine layout improves operator access during setup and production. Together, these capabilities make the Okamoto grinder a practical choice for manufacturers requiring precision cylindrical grinding without moving into a more complex CNC platform.

 

Standard Accessories
  • ID Grinding Attachment
  • Grinding Wheel with Adapter
  • Tailstock
  • Automatic Grinding Cycle
  • Dressing Device with Diamond
  • Semi-Enclosed Splash Cover
  • Leveling Bolts and Plates
  • Tools and Tool Box
  • Installation

 

Optional Accessories
  • Frequency Inverter for Spindle Motor
  • Additional Grinding Wheel Adapter
  • Wheel Balancing Stand with Arbor
  • 18,000 and 25,000 rpm ID Spindles
  • Variety of Coolant Tanks
  • Coolant Temperature Controller
  • Scroll Chuck with Adapter Plate
  • Collet Chuck
  • Work Rest
  • Steady Rest
  • Driving Dog Set
  • Dial Indicator for Table Swivel
  • Fully Enclosed Cover
  • Auto Door Interlock
  • Metric Conversion Kit
Additional Information
Max Table Travel

26.58"

Maximum Part Diameter

7.87"

OGM-UDX Specifications

  • Swing over Table: 8.6″ (218 mm)
  • Distance Between Centers: 20″ (508 mm)
  • Maximum Diameter to be Ground: 7.87″ (199 mm) 
  • Wheelhead Swing Angle: ±30°
  • Grinding Spindle: 2 hp (1.5 kW)
  • Wheel Size (D × W × B): 12″ × 1″ × 5″ (305 × 25 × 127 mm)