Drill Pin 29250006541 for Underground Drill Rigs High-Strength 42CrMo4 Alloy Steel for Rock Drilling Equipment

Part Number: 29250006541
  • Material:
    • 42CrMo4 alloy steel (EN 10083/3-2006 compliant)
    • Induction-hardened surface (HRC 45-50)
  • Dimensions:
    • Diameter:
    • Length:
    • Thread specification:
  • Performance:
    • Static load capacity: 50 tons
    • Operating temperature: -20°C to +120°C
    • Salt spray resistance: 1,000 hours (ASTM B117)
  • Compliance: API 16A (drill string components), ISO 683/13 (alloy steel standards)
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High-Strength Drill Pin for Underground Drill Rigs
Engineered for extreme mining and tunneling environments, this drill pin ensures reliable connection between drill string components in Sandvik DT1131 and compatible jumbo rigs. Constructed from 42CrMo4 alloy steel with induction-hardened surfaces, it withstands high axial and torsional loads while resisting wear and corrosion .

 

Technical Specifications & Design

 

  • Core Components:
    • 42CrMo4 Alloy Steel: Compliant with EN 10083/3-2006, offering exceptional strength (tensile strength ≥1,080 MPa) and toughness for heavy-duty applications .
    • Induction Hardening: Surface hardness of HRC 45-50 enhances wear resistance in abrasive rock drilling conditions .
    • M24x1.5 Threads: Precision-machined metric threads with castellated locknut ensure vibration-resistant fastening, validated through 1,000-hour salt spray testing .

 

Performance Advantages
  • High Load Capacity: Tested to 50 tons static load, exceeding industry standards for drill string components .
  • Wide Temperature Range: Operates reliably from -20°C to +120°C, suitable for both frozen and high-temperature mining environments.
  • Corrosion Resistance: Passed 1,000-hour salt spray test (ASTM B117), ensuring longevity in wet or corrosive underground conditions.

 

Applications
  • Underground Drill Rigs: Restores connectivity in Sandvik DT1131 and compatible jumbo rigs, supporting tunnel excavation and rock drilling.
  • Mining Machinery: Used in drill string assemblies, rock drills, and conveyor systems requiring secure, high-strength connections.
  • Industrial Hydraulics: Supports heavy-duty equipment in construction, quarrying, and material handling industries.