CNC Grinding Parts
Ground components where surface finish and dimensional tolerance go beyond what a cutting tool alone will produce.
- Surface finishAs fine as Ra 0.2 micrometres
- Dimensional tolerance+/-0.002 inches on ground steel components
- Related servicesMilling with +/-0.005 mm tolerance and turning with +/-0.005 mm tolerance
- MaterialsHardened and unhardened steel, stainless steel and other machinable metals
- Hardness verificationMicro-hardness tester in our inspection room
Category: CNC Machining Parts
Product Overview
CNC grinding parts are components finished with an abrasive wheel rather than a cutting tool. Grinding is used where a surface must be smoother than machining leaves it, where a dimension must be tighter than turning or milling can hold, or where the material has been hardened after machining and still has to be brought to size.
Our grinding work covers surface finishing alongside turning of symmetrical components and milling, so a part can be machined, heat treated and ground within the same factory.
Key Benefits
Superior Surface Finish
Surface finishes as fine as Ra 0.2 micrometres on steel components.
Tight Dimensional Control
Dimensional tolerances of +/-0.002 inches on ground steel parts.
Hardened Material Capability
Parts can be ground to size after heat treatment, which cutting tools cannot achieve.
Aesthetic Consistency
Ground surfaces are uniform across a batch, not merely within tolerance.
Application Scenarios and Who It Is For
- Machine tool components
- Precision instruments
- Moulds and die components
- Hardened shafts and pins
- Sealing and mating faces
If your application is not listed, send the drawing anyway. Most of our work arrives as a part nobody else wanted to quote.
Technical Specifications
| Surface finish | As fine as Ra 0.2 micrometres |
|---|---|
| Dimensional tolerance | +/-0.002 inches on ground steel components |
| Related services | Milling with +/-0.005 mm tolerance and turning with +/-0.005 mm tolerance |
| Materials | Hardened and unhardened steel, stainless steel and other machinable metals |
| Hardness verification | Micro-hardness tester in our inspection room |
| Inspection | CMM, gauges, first piece and final inspection |
Manufacturing Process and Quality Control
Drawing Review
Our engineers review manufacturability, confirm tolerances and raise anything in the drawing that would cause a problem before production starts.
Sample Approval
Free samples are offered prior to mass production, with first piece inspection recorded against your drawing.
Production Control
In-process inspection at a set frequency during the run, using the coordinate measuring machine and gauges in our inspection room.
Surface Treatment
Anodizing, sand blasting, polishing, electroplating and powder coating applied in house after deburring and cleaning.
Final Inspection
The finished lot is checked against the drawing before packing, with certification issued for the stages you require.
Packing and Delivery
Protective packing appropriate to the part, dispatched within the agreed delivery date.
Customization Options
- Material — specify a grade from our catalog, or describe the function and our engineers will recommend one.
- Tolerance — standard machining tolerance is 0.005 to 0.01 mm; tighter callouts are discussed at quotation.
- Surface finish — anodized, sand blasted, polished, electroplated, powder coated or as machined.
- Marking — laser engraving and CNC engraving for part numbers and logos.
- Quantity — from a single prototype through to long production contracts.
- Certification — certification provided at each stage on request.
Product Gallery
Product FAQ
When do I need grinding rather than machining?
When the finish or tolerance is beyond what a cutting tool leaves, or when the part is hardened and still must be sized.
Can you grind parts machined elsewhere?
Yes, though we will inspect the incoming parts first and confirm there is enough stock left to grind.
Do you verify hardness before grinding?
Yes, hardness is checked with a micro-hardness tester after heat treatment.
How do I order this part?
Do you offer free samples?
Yes, free samples are offered prior to mass production so you can confirm the part before committing to a run.
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Learn MoreRequest A Quote For CNC Grinding Parts
Send your drawing and quantity. Our engineers reply with price, lead time and any manufacturability notes.