Precision Abrasive Machining
Precision Grinding Services
Improve critical dimensions, flatness, roundness and surface finish after machining or heat treatment. Send your drawing, material, stock condition and inspection requirements for a clear grinding plan and quotation.
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Controlled Micro-Cutting
What Precision Grinding Controls
A dressed abrasive wheel removes small, controlled amounts of stock to finish critical surfaces after machining or heat treatment.
- Improve flatness, roundness, parallelism and dimensional fit.
- Produce controlled roughness on functional and bearing surfaces.
- Finish hardened or wear-resistant parts with minimal cutting force.
Grinding Processes
Select the Process for the Surface
The correct method depends on workpiece geometry, datums, tolerance, finish target and production quantity.
Surface Grinding
Flat faces, thickness, parallelism and controlled surface finish.
Cylindrical Grinding
External diameters on shafts, rollers, journals and precision spindles.
Internal Grinding
Bores, bearing races, sleeves and internal cylindrical features.
Centerless Grinding
Repeat external diameters on pins, rods and tubes without center holes.
Creep-Feed Grinding
Deep profiles and difficult alloys using slow feed and controlled cooling.
Manual Grinding
Deburring, weld blending, repair and localized low-volume finishing.
Drawing-Based Capability
Grinding Capability and Wheel Selection
Planning values are confirmed against the exact grade, geometry, stock allowance, heat-treatment condition and measurement method.
General Capability
| Selected precision tolerance | ±0.001–0.01 mm after drawing review |
|---|---|
| Selected surface finish | Ra 0.1–0.4 μm after process review |
| Controlled geometry | Flatness, parallelism, roundness and cylindricity |
| Workpiece forms | Plates, shafts, rods, bores and bearing surfaces |
| Production range | Prototype, small batch and repeat production |
Common Abrasive Families
| Aluminum oxide | Carbon steel, alloy steel and general-purpose steel applications |
|---|---|
| CBN | Hardened steels and selected high-temperature alloys |
| Silicon carbide | Cast iron, non-ferrous metals and selected hard or brittle materials |
| Diamond | Carbide, ceramics, glass and selected non-ferrous precision work |
Final wheel specification also considers bond, grit, grade, structure, wheel speed and coolant.
Workpiece Materials
Materials Suitable for Precision Grinding
Wheel, coolant and stock removal must be matched to the exact grade—not only the material family.
Steels and Cast Iron
Carbon steel, alloy steel, tool steel, stainless steel and cast iron.
Shafts, dies, gears, plates, races and hardened wear surfaces.Non-Ferrous Metals
Aluminum, copper, brass, bronze and selected magnesium alloys.
Lightweight plates, conductive parts, bushings and precision mating faces.Hard and Brittle Materials
Carbide, technical ceramics and glass with the correct wheel and setup.
Tooling, gauges, wear parts, insulators and specialized components.Engineering Plastics
Dimensionally stable grades such as POM, PEEK and selected filled polymers.
Guides, seals, insulators and low-friction components requiring careful heat control.Process and Inspection Control
Control Heat, Geometry and Surface Integrity
Grinding quality depends on a stable setup, dressed wheel, controlled temperature and measurement at the specified condition.
Drawing Review
Define datums, tolerance, roughness, stock and inspection requirements.
Wheel and Setup
Match abrasive, bond, grit, workholding and coolant to the workpiece.
Process Control
Manage feed, passes, dressing and heat to reduce burn and distortion.
Final Verification
Inspect critical dimensions, geometry and roughness before shipment.
Grinding FAQ
Plan Your Precision Grinding Project
What determines precision grinding cost and lead time?
Material hardness, stock allowance, tolerance, surface finish, quantity and inspection requirements are the main factors.
How is batch-to-batch repeatability maintained?
We control the wheel, dressing cycle, machining parameters, coolant, workholding and inspection method.
What causes chatter marks during grinding?
Common causes include wheel imbalance, poor dressing, unstable clamping, spindle wear and unsuitable parameters.
How is grinding surface integrity verified?
Dimensions, geometry, roughness and visible burn are checked. Additional testing can be provided when specified.
What quality documents are available?
CMM reports, dimensional results, roughness records and material or heat-treatment certificates are available on request.