Okamoto machines are available through Ellison Technologies in the following states:
California, Wisconsin, North Carolina, Tennessee, Oregon, Washington, Georgia, Alabama, Mississippi, South Carolina and Virginia.
When tolerance isn’t negotiable, grinding isn’t optional.
Reduce scrap, improve consistency across every run, and unlock higher-margin work with precision you can rely on.
If you’re outsourcing grinding, struggling to hold tight tolerances, or turning away high-precision work—this is where your process evolves.
What's It Costing You Without Grinding?
- Lost jobs due to tight tolerance requirements
- Delays from outsourcing critical finishing processes
- Margin erosion from scrap and rework
- Limited control over your final part quality
If you don’t control the finish, you don’t control the outcome.
CUSTOMER STORY
Real-world Impact: 4M Precision Grinding
4M Precision Grinding built their business around solving a problem most shops can’t: correcting distortion in high-value bearing components after machining and heat treatment.
That level of work demands precision — and consistency.
Through our grinding process, we are able to correct bearing ring distortion that occurs during machining and heat treat process.” — Rubén Medina, Founder, 4M Precision Grinding.
With Okamoto grinding solutions, 4M has been able to:
- Consistently hold tight tolerances on thin-walled components
- Take on complex work other shops avoid
- Build long-term trust with customers in the bearing industry
Featured Okamoto Cylindrical / Internal Grinding Solutions
OGM-820UIII
Flexible Cylindrical Grinding with Operator Control
- Grinding Type: Cylindrical (Between Centers or Chucking)
- Control: MDI (Manual Data Input)
- Max Grinding Diameter: ~7.9" (200 mm)
- Max Grinding Length: ~20" (500 mm)
- Wheel Size: ~16" diameter
Impact: A flexible entry into precision cylindrical grinding—ideal for shops handling varied part runs while improving accuracy and reducing rework.
OGM-1220UNCIII
CNC Cylindrical Grinding for High-Precision Production
- Grinding Type: Cylindrical (Between Centers or Chucking)
- Control: CNC
- Max Grinding Diameter: ~12" (300 mm)
- Max Grinding Length: ~20" (500 mm)
- Wheel Size: ~20" diameter
- Capabilities: Multi-step grinding, automated cycles
Impact: Consistent, repeatable precision across production—reduce variability and scale high-tolerance work.
IGM-15NCIII/2B
Twin-Spindle Internal Grinding for Complex Parts
- Grinding Type: Cylindrical / Internal / Face (Chucking)
- Control: CNC
- Configuration: Twin spindle
- Max Work Diameter: ~15" (400 mm)
Impact: Complete multiple internal grinding operations in one setup—reduce cycle time and improve throughput on complex geometries.
UGM-1224NC
Multi-Function Cylindrical / Internal Grinding in One Platform
- Grinding Type: Cylindrical / Internal (Multi-spindle turret)
- Control: CNC
- Max Grinding Diameter: ~12" (300 mm)
- Max Grinding Length: ~24" (600 mm)
Impact: Maximize efficiency by combining multiple grinding processes—fewer setups, faster delivery, higher productivity.
Built For Shops Ready To Grow
If you are:
- Turning away tight-tolerance work
- Relying on outside vendors for grinding
- Struggling with consistency on critical parts
Then Cylindrical / Internal grinding isn’t optional — it’s your next step forward.
Want a deeper breakdown of how grinding fits into your operation?
Explore the full Cylindrical / Internal grinding guide
