Cr12 alloy steel construction with 55-60 HRC hardness | Abrasion resistance: 0.01mm/1000 cycles | ISO 4288 compliant surface finish
C190000805010 Drill Rod Guide Sleeve for Rock Drill Jumbo Front Support – Cr12 Alloy Steel with 55-60 HRC Hardness for Heavy-Duty Mining

Drill Rod Guide Sleeve C190000805010 High-Wear Resistant for Rock Drill Jumbos

Part Number: C190000805010
  • Material:
    • Cr12 alloy steel (55-60 HRC hardness)
    • Chemical nitriding surface treatment (ASTM B117 compliant)
  • Dimensions:
    • Outer diameter:
    • Inner diameter:
    • Length:
    • Tolerance:
  • Performance:
    • Abrasion resistance:
    • Salt spray resistance: 1,000 hours (ASTM B117)
    • Temperature range: -20°C to +150°C
  • Design:
    • Interlocking grooves for vibration damping
    • Smooth 0.8μm Ra surface finish (ISO 4288 compliant)
    • Lightweight: 1.2 kg per piece
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Heavy-Duty Drill Rod Guide Sleeve for Rock Drill Jumbos
Engineered for extreme mining environments, this guide sleeve ensures precise alignment and protection of drill rods in rock drill jumbos. Constructed from Cr12 alloy steel with 55-60 HRC hardness, it offers superior resistance to abrasion, vibration, and chemical corrosion, making it ideal for heavy-duty underground and surface mining applications .

 

Technical Specifications & Design

 

  • Core Components:
    • Cr12 Alloy Steel: Compliant with GB/T 1299-1985 standards, providing exceptional hardness and wear resistance in high-stress drilling operations .
    • Chemical Nitriding: Surface treatment enhances corrosion resistance, passing 1,000-hour salt spray tests under ASTM B117 conditions .
    • Precision Machining: Tolerances of ±0.05 mm and 0.8μm Ra surface finish minimize friction and prevent drill rod wear during dynamic movements .

 

Performance Advantages
  • Vibration Damping: Interlocking groove design reduces drill rod wobble by 30%, extending both component and drill rod lifespan .
  • Wide Temperature Range: Operates reliably from -20°C to +150°C, suitable for extreme climate conditions in mining.
  • Low Maintenance: Self-lubricating properties of the nitrided surface eliminate the need for additional lubricants, reducing downtime and maintenance costs.

 

Applications
  • Rock Drill Jumbos: Restores alignment efficiency in Sandvik 353E, 352E, and compatible drill rig front support systems .
  • Mining Equipment: Used in hydraulic drills, blast hole drills, and tunneling machines requiring robust rod guidance.
  • Construction Machinery: Ideal for excavators and loaders operating in abrasive rock environments.

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