Pin C0430011581 | High-Strength for Rock Drill Jumbos
C0430011581 Pin for Rock Drill Jumbos – 42CrMo4 Alloy, HRC50-55 Hardness, 6000N·m Torque Capacity
42CrMo4 alloy steel | Induction-hardened (3-4mm depth) | HRC50-55 surface, HRC30-35 core

Pin C0430011581 | High-Strength for Rock Drill Jumbos

Part Number: C0430011581
  • Technical Specifications:
    • Material: 42CrMo4 alloy steel (EN 10083-3) with induction hardening
    • Hardness: HRC50-55 (surface); HRC30-35 (core)
    • Precision: IT7 dimensional tolerance (ISO 286-1)
    • Tensile Strength: 1200MPa
  • Design Features:
    • Surface Treatment: 8μm zinc plating (ASTM B633)
    • Mounting: ISO 8752 compatible hole pattern
    • Torque Capacity: 6000N·m (continuous operation)
  • Performance Metrics:
    • Fatigue Life: 10⁶ cycles under rated load (ISO 12044)
    • Operating Temperature: -30°C to +100°C
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Heavy-Duty Pin for Rock Drill Jumbos
This high-strength pin is engineered to secure moving components in rock drill jumbos, withstanding extreme vibration, axial loads, and abrasive conditions in mining environments. Its robust construction ensures reliable performance in critical joints, reducing maintenance downtime and enhancing equipment safety.

 

Technical Specifications & Design
  • Material & Durability:
    • Constructed from 42CrMo4 alloy steel, featuring induction-hardened surfaces (3-4mm depth) for HRC50-55 wear resistance and a tough core (HRC30-35) to absorb impact loads. This material achieves 1200MPa tensile strength, making it suitable for heavy-duty load-bearing applications .
    • 8μm zinc plating provides 72-hour salt spray resistance (ASTM B117), protecting against corrosion in damp underground mines and extending service life by 40% compared to uncoated pins .
  • Precision Engineering:
    • IT7 dimensional tolerance (ISO 286-1) ensures a tight fit with mating components, minimizing play and vibration during operation. The Ra 0.8μm surface finish reduces friction, preventing premature wear in pivot joints .
    • ISO 8752 compatible mounting holes enable seamless integration with standard rock drill jumbo assemblies, simplifying replacement and alignment .
  • Performance Under Load:
    • Rated for 6000N·m continuous torque, it handles the rotational forces generated during drill arm movement and equipment maneuvering. The 10⁶ cycle fatigue life (ISO 12044) ensures durability in repetitive motion applications .
    • Operating temperature range (-30°C to +100°C) maintains performance stability in both cold underground mines and high-friction mechanical systems .

 

Applications
  • Rock Drill Jumbos: Secures pivot joints in drill arms, boom assemblies, and propulsion systems.
  • Mining Equipment: Compatible with loaders, crushers, and tunneling machines requiring high-strength fasteners.
  • Industrial Machinery: Suitable for heavy-duty hinges, linkages, and mechanical joints in abrasive environments.

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