Pin Assembly C190001136 High-Strength for Rock Drill Jumbos

Part Number: C190001136
  • Technical Specifications:
    • Tensile strength: 900MPa
    • Dynamic load capacity: 200kN
    • Operating temperature range: -40°C to +120°C
  • Durability:
    • Fatigue life: 50,000 cycles (ISO 12107 tested)
    • Corrosion resistance: 1000-hour salt spray (ASTM B117)
  • Design Features:
    • Zinc-nickel plated for rust protection
    • Precision-machined with ±0.02mm tolerance
    • Compatible with standard pivot bushings
  • Material: 42CrMo alloy steel (GB/T 3077 compliant)
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Heavy-Duty Pin Assembly for Rock Drill Jumbos
Engineered to connect critical moving components in rock drill jumbos, this pin assembly delivers reliable performance in high-vibration mining environments. Its robust construction ensures secure pivot functionality for drill arms, boom hinges, and hydraulic cylinder mounts, even under extreme loads .

 

Technical Specifications & Design
  • Core Performance Traits:
    • High Tensile Strength: 900MPa ultimate tensile strength (42CrMo alloy steel, GB/T 3077 compliant) provides exceptional resistance to bending and shear forces, critical for heavy drill arm movements .
    • Load Handling: 200kN dynamic load capacity supports the inertia of rotating components, reducing the risk of premature failure during operation .
    • Corrosion Resistance: Zinc-nickel plating offers 1000-hour salt spray resistance (ASTM B117), protecting against moisture and mineral oils in underground and surface mines .

 

Performance Advantages
  • Extended Service Life:
    • 50,000-cycle fatigue life (ISO 12107 testing) minimizes maintenance downtime, withstanding repetitive pivot motions in drilling operations .
    • Precision machining (±0.02mm tolerance) ensures tight fit with mating bushings, reducing wear and vibration-induced noise .
  • Environmental Resilience:
    • Operates reliably from -40°C (cold underground mines) to +120°C (high-friction pivot points), maintaining structural integrity without embrittlement .

 

Applications
  • Rock Drill Jumbos: Used in drill arm pivots, boom hinges, and hydraulic cylinder mounts to enable smooth, controlled movement.
  • Mining Equipment: Compatible with tunnel boring machines, hydraulic drills, and heavy-duty loaders requiring durable pivot components.
  • Industrial Machinery: Suitable for construction equipment and material handlers with high-stress pivot joints.