CNC Grinding
Services
Ningbo Feiyu provides CNC grinding services for precision surfaces, cylindrical features, tight finish requirements, dimensional control, and custom OEM/ODM components that need reliable final sizing.
Geometric Perfection for High-Requirement Components
We utilize advanced CNC grinding technology to achieve dimensions, tight tolerances, and surface qualities that standard milling and turning centers cannot reach.
01 CNC Cylindrical Grinding (OD/ID)
Perfect concentricity and precision for shafts, valves, stepped cylinders, and pistons. Ideal for establishing perfect press-fit diameters.
02 CNC Surface Grinding
Achieves exceptional flatness and parallelism on plates, blocks, and custom fixtures, completely eliminating heat-treatment distortion.
Measurable Accuracy You Can Trust
We don't just promise precision--we measure and guarantee it. Here are our standard capabilities for CNC grinding operations:
| Parameter / Metric | Standard Capability | High-Precision / Critical |
|---|---|---|
| Dimensional Tolerance | ± 0.005 mm | Up to ± 0.001 mm |
| Surface Roughness (Ra) | 0.4 μm (16 μin) | Up to 0.1 μm (4 μin) |
| Flatness & Parallelism | Within 0.005 mm | Within 0.002 mm |
| Materials Processed | Hardened Steel (HRC 50-65), Stainless Steel, Tool Steel, Aluminum, Titanium | |
Why Source Your Precision
Grinding From Us?
Seamless In-House Processing
We manage the entire workflow—from initial CNC turning/milling and heat treatment to final precision grinding—under one roof, reducing handling risks and lead times.
Thermal Distortion Correction
Post-machining heat treatment often warps metal. Our CNC grinding process corrects all thermal distortions, returning parts to absolute geometric perfection.
Advanced Metrology Inspection
Every single batch undergoes rigorous micrometer, CMM, and surface profilometer testing to ensure your Ra finish and dimensional tolerances are perfectly executed.
Ready for Flawless
CNC Grinding?
Upload your 2D drawings (with highlighted grinding requirements) and 3D files. Our technical team will review your specifications and provide a detailed quotation within 24 hours.
- Secure & Confidential (NDA available)
- Engineering review included
- Fast turnaround on quotes
Request For Quote
CNC Grinding Capability & Quality Control
CNC grinding supports precision finishing where surface quality, diameter control, flatness or post-heat-treatment accuracy is required.
Upload Drawings for Quote| Best For | Shafts, flat surfaces, bearing fits, hardened parts and tight-tolerance finishing |
|---|---|
| Process Role | Final sizing, surface finishing and correction after heat treatment |
| Materials | Steel, stainless steel, hardened alloys and precision machined components |
| Quality Output | Surface finish checks, diameter checks, flatness and final inspection reports |
CNC Grinding FAQ
What information do you need for CNC Grinding? +
Please send 2D drawings, 3D files, material requirements, surface finish, quantity, tolerance notes and any inspection or packaging standards.
Can you support both samples and batch production? +
Yes. Ningbo Feiyu supports prototype validation, small batches and repeat OEM/ODM production with process planning for stable quality.
Can you provide inspection reports? +
Yes. We can provide dimensional inspection records and process-specific quality checks for cnc grinding projects when required by the drawing or purchase order.
Which file formats can you review? +
Common formats include PDF, DWG, DXF, STEP, STP, IGES and customer-specific drawing packages.
Can you combine this service with other processes? +
Yes. We can coordinate machining, stamping, welding, forming, surface treatment, assembly and final inspection as one manufacturing workflow.
Related Manufacturing Services
Connect this process with upstream production, downstream finishing and inspection-controlled delivery.