Industrial Grinding Machine: Micron-Level Finishing for Critical Surfaces

What is an Industrial Grinding Machine?

An industrial grinding machine uses abrasive wheels to achieve sub-micron surface finishes (Ra ≤ 0.1μm) and geometric tolerances (±0.001mm) on hardened metals, ceramics, and composites.

Types & Specifications

1. Cylindrical Grinders
   • For external/internal grinding of shafts (e.g., hydraulic rods up to Ø500mm).
2. Surface Grinders
   • Magnetic chucks hold parts for flat/angular grinding (600 x 300mm typical capacity).
3. Centerless Grinders
   • Through-feed systems for high-volume pins/bearings (0.5–30mm Ø).
4. Tool & Cutter Grinders
   • 5-axis CNC resharpens end mills, drills, and hobs.

Key Advantages

• Surface Integrity: Eliminates micro-cracks from milling.
• Hard Material Capability: Grinds 65+ HRC tool steels.
• Automation: Robotic loading/unloading for lights-out production.
• Cost Control: Extends tool life 3x via precision sharpening.

Applications

• Bearings: Raceways with 0.05μm Ra finish.
• Mold & Die: Core/cavity surfaces for injection molding.
• Automotive: Fuel injector nozzles with Ø0.1mm holes.

Operation Workflow

1. Workholding: Secure parts between centers or magnetic chuck.
2. Wheel Selection:
   • Aluminum oxide: General steel grinding
   • CBN/Diamond: Carbides, ceramics
3. Grinding Cycle:
   • Roughing: 0.02–0.2mm depth of cut
   • Finishing: 0.002mm passes with coolant
4. Post-Grinding Inspection: CMM verifies form/tolerances.