Heavy Duty Grinding Machine: Large-Scale Surface and Cylindrical Grinding for Industrial Components

What is a Heavy Duty Grinding Machine?

A Heavy Duty Grinding Machine is built for high-material-removal grinding of large parts like turbine shafts, rolls, and press dies. These machines handle workpieces up to 30 tons with rigid frames to resist vibration.

Types of Heavy Duty Grinders

1. Roll Grinders
   • Refurbish paper mill rolls, steel backup rolls (Ø300–2,000mm).
2. Crankshaft Grinders
   • Precision grinding of engine cranks (4–12m lengths).
3. Planetary Grinders
   • For large-diameter rings and bearings (e.g., wind turbine slewing rings).
4. Vertical Spindle Grinders
   • Surface grind large plates (up to 5m x 2m).

Key Advantages

✔ High Stock Removal: Takes 5–10mm depth of cut in hardened steel.
✔ Rigidity: Cast iron construction minimizes deflection.
✔ Automation: In-process gauging adjusts for wheel wear.
✔ Durability: Designed for 24/7 operation in harsh environments.

Applications

• Steel Mills: Work roll regeneration.
• Shipbuilding: Propeller shaft grinding.
• Energy: Hydroelectric turbine shaft refurbishment.

Operation Steps

1. Workpiece Loading: Overhead cranes position parts.
2. Wheel Selection: Segmented wheels for roughing, CBN for finishing.
3. Grinding Cycle:
   • Rough grind at 0.1–0.3mm/pass.
   • Finish grind at 0.02mm/pass (Ra 0.4μm).
4. Quality Assurance: Laser trackers verify straightness/roundness.