The Forging Steps of Crane Wheels

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21
,
2025
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Overview of Crane Wheel Applications

Crane wheels primarily serve heavy-duty applications in metallurgical enterprises, including:

  • Casting cranes
  • Charging bucket cranes
  • Slab handling cranes
  • Coil clamping cranes
  • Electromagnetic cranes
  • Other high-duty overhead cranes

Traditional crane wheels (e.g., for stripper cranes, soaking pit cranes, rigid scraper cranes) are gradually being phased out due to evolving steelmaking, casting, and rolling processes.

Stage 1: Forging Process

  1. Design Planning
    • Analyze customer material requirements and drawings
    • Develop forging design specifications
  2. Material Preparation
    • Cut raw materials according to production plans
    • Heat treatment for optimal forging temperature
  3. Forming Operation
    • Apply pressure through hammers or presses
    • Achieve plastic deformation into rough wheel shape
    • Maintain machining allowances in forged components
  4. Quality Verification
    • Inspect forged pieces for compliance
    • Proceed to next stage after approval

Stage 2: Machining Process

  1. Rough Machining
    • Process after cooling:
      • Lift hole machining
      • Keyway processing
      • Preliminary turning
  2. Heat Treatment
    • Comprehensive thermal processes:
      • Quenching
      • Normalizing
      • Tempering
    • Achieve required microstructure and properties
  3. Quality Control
    • Hardness testing
    • Non-destructive inspection
  4. Precision Machining
    • Finish with high-speed CNC lathes
    • Maintain dimensional accuracy (0.02-0.03mm tolerance)
    • Achieve final drawing specifications

Stage 3: Surface Treatment & Packaging

  1. Surface Protection
    • Apply paint or oil coatings per customer requirements
  2. Packaging Standards
    • Wrap with protective film
    • Secure on pallets
    • Export-grade plywood crating with cushioning materials
  3. Shipment Preparation
    • Load for transportation after final inspection
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