Cylindrical grinding is a precision finishing process used to achieve tight diameter control, excellent roundness, and superior surface finish on rotational components. It is a critical operation for shafts, pins, sleeves, bushings, and other cylindrical parts that require micron-level accuracy and stable performance.
At EadeTech, cylindrical grinding is applied to titanium alloys, nickel-based superalloys, hardened steels, tungsten, molybdenum, and precision engineering metals, supporting aerospace, medical, automotive, electronics, and industrial applications.
Cylindrical grinding uses a rotating abrasive wheel to remove material from the external or internal diameter of a workpiece while it rotates between centers or in a chuck. Unlike turning, grinding enables much tighter tolerances and finer surface finishes, especially after heat treatment or stress-relief processes.
Key advantages include:
Excellent roundness and concentricity
Very tight diameter tolerances
Smooth surface finish for functional contact surfaces
Minimal thermal and mechanical distortion
Advanced alloys often present challenges such as:
Work hardening during turning
Dimensional drift after heat treatment
Surface integrity issues on bearing surfaces
Cylindrical grinding resolves these issues by allowing controlled, low-force material removal, making it ideal for aerospace shafts, medical components, and precision industrial parts.
Maximum grinding diameter: Ø300 mm
Maximum grinding length: 800 mm
Diameter tolerance: ±0.002 – ±0.005 mm
Roundness: ≤0.002 mm
Surface roughness: Ra 0.2 – 0.8 μm
Grinding modes: External OD, internal ID, plunge grinding
| Parameter | Capability |
|---|---|
| Diameter tolerance | ±0.002–0.005 mm |
| Roundness | ≤0.002 mm |
| Concentricity | ≤0.003 mm |
| Surface roughness | Ra 0.2–0.8 μm |
| Repeatability | ±0.002 mm |
Cylindrical grinding is especially effective for hard, heat-treated, or stress-sensitive materials that demand high dimensional accuracy.
| Material | Hardness Range | Typical Application |
|---|---|---|
| Titanium alloys | ~30–36 HRC | Aerospace shafts |
| Inconel 718 | ~40–45 HRC | Turbine components |
| Tungsten | Very high | Thermal & wear parts |
| Molybdenum | High | Electronics components |
| Hardened steel | 50–65 HRC | Precision spindles |
Aerospace and aircraft shafts
Precision pins and dowels
Bearing journals and sleeves
Medical instrument components
Motor and actuator parts
| Industry | Component | Key Requirement |
|---|---|---|
| Aerospace | Titanium shafts | Roundness & concentricity |
| Medical | Surgical components | Smooth surfaces |
| Automotive | Transmission parts | Dimensional stability |
| Industrial | Spindles & rollers | Wear resistance |
Selecting the correct grinding wheel is critical for performance and surface integrity. EadeTech engineers optimize wheel selection based on:
Material hardness and microstructure
Required surface finish
Heat sensitivity
Stock removal rate
| Wheel Type | Best For | Application |
|---|---|---|
| Aluminum oxide | Alloy steels | General OD grinding |
| Silicon carbide | Titanium alloys | Heat-sensitive parts |
| CBN | Hardened steel | High-precision shafts |
| Diamond | Tungsten & carbides | Ultra-hard materials |
Every cylindrical ground part is subjected to strict inspection to ensure performance and reliability:
CMM and roundness measurement
Diameter and concentricity verification
Surface roughness testing
Visual inspection for burns or chatter
| Inspection Item | Method | Acceptance |
|---|---|---|
| Diameter | Micrometer / CMM | ±0.002–0.005 mm |
| Roundness | Roundness tester | ≤0.002 mm |
| Surface finish | Ra tester | As specified |
| Thermal damage | Visual / microscope | None |
Proven expertise in specialty and hard materials
Micron-level diameter and roundness control
Stable processing for long or slender parts
Seamless integration with CNC turning, milling, EDM, and finishing
Learn more at https://www.eadetech.com.
Whatsapp: +8618998453346
Phone: +8618998453346
Tel: +8618998453346
Email: [email protected]
Addr: Room 302, Building D, COFCO Gonghua Project, Zone 20, Honglang Community, Xin'an Street, Bao'an District, Shenzhen City.