42CrMo alloy steel construction | 1000MPa tensile strength | HRC 45-50 hardness (induction-hardened surface)
C190000926 Axle for Rock Drill Jumbos – 42CrMo Alloy Steel, 1000MPa Tensile Strength, Induction-Hardened
CNC-machined with ±0.02mm tolerance | Integral keyway for torque transmission | Smooth 0.8μm Ra surface finish

Axle C190000926 High-Strength Alloy Steel for Rock Drill Jumbos

Part Number: C190000926
  • Material:
    • 42CrMo alloy steel (GB/T 3077 compliant)
    • Induction-hardened surface (HRC 45-50)
  • Performance:
    • Tensile strength: 1000MPa
    • Fatigue life: 1,000,000 cycles (ISO 12107 tested)
    • Operating temperature: -40°C to +120°C
  • Design:
    • CNC-machined with ±0.02mm tolerance
    • Integral keyway for torque transmission
    • Nitride coating (1000-hour salt spray resistance, ASTM B117)
  • Compliance: ISO 683/13 (alloy steel forgings)
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Heavy-Duty Axle for Rock Drill Jumbos
Engineered for the extreme loads of rock drill jumbos, this axle is constructed from 42CrMo alloy steel to deliver exceptional strength and durability in mining operations. Its robust design withstands high torque, vibration, and abrasive environments, ensuring reliable performance in critical pivot and load-bearing components .

 

Technical Specifications & Design
  • Core Components:
    • 42CrMo Alloy Steel: Compliant with GB/T 3077 standards, offering 1000MPa tensile strength—ideal for handling the dynamic loads of drill arm movement .
    • Induction Hardening: Surface hardness of HRC 45-50 enhances wear resistance, while the core remains ductile to absorb impact, reducing fracture risk .
    • Precision Machining: CNC-machined with ±0.02mm tolerance ensures seamless integration with bearings and mating parts, minimizing vibration-induced wear .

 

Performance Advantages
  • Durability:
    • 1,000,000-cycle fatigue life (ISO 12107 testing) exceeds industry requirements for rock drill jumbos, reducing replacement frequency .
    • Nitride coating provides 1000-hour salt spray resistance (ASTM B117), protecting against corrosion in damp mining environments .
  • Load Handling:
    • 1000MPa tensile strength supports heavy drill arm loads, critical for stable drilling operations .
    • Wide temperature range (-40°C to +120°C) adapts to extreme underground and surface mining conditions .

 

Applications
  • Rock Drill Jumbos: Used in drill arm pivot shafts, load-bearing joints, and drive components requiring high strength.
  • Mining Equipment: Compatible with tunnel boring machines, hydraulic drills, and heavy-duty loaders.
  • Industrial Machinery: Suitable for crushers, conveyors, and construction equipment with heavy-duty rotational components.

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