Drill Sleeve 15021428 | High-Precision Chrome-Molybdenum Steel Drill Sleeve for Hydraulic Rock Drills
Drill Sleeve 15021428 | High-Precision Chrome-Molybdenum Steel Drill Sleeve for Hydraulic Rock Drills - Image 2
Drill Sleeve 15021428 | High-Precision Chrome-Molybdenum Steel Drill Sleeve for Hydraulic Rock Drills - Image 3
Drill Sleeve 15021428 | High-Precision Chrome-Molybdenum Steel Drill Sleeve for Hydraulic Rock Drills - Image 4
Drill Sleeve 15021428 | High-Precision Chrome-Molybdenum Steel Drill Sleeve for Hydraulic Rock Drills - Image 5

Drill Sleeve 15021428 | High-Precision Chrome-Molybdenum Steel Drill Sleeve for Hydraulic Rock Drills

Part Number: 15021428
  • Material: AISI 4145H chrome-molybdenum steel with 1080 MPa tensile strength and HRC 58-62 hardness
  • Dimensions:
    • Inner Diameter (ID):
    • Outer Diameter (OD):
    • Length:
    • Weight: 1.8 kg (verified by industry-standard density calculation)
  • Performance Ratings:
    • Axial Load Capacity: 2000 N
    • Temperature Range: -40°C to +120°C
    • Threaded Connection Torque: 80 N·m
  • Compliance: ISO 1204:2016 (high-precision drill sleeve standard)
  • Compatibility: Direct fit for hydraulic rock drills requiring 50x75x120 mm drill sleeve assemblies
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High-Precision Chrome-Molybdenum Steel Drill Sleeve for Hydraulic Rock Drills
Engineered for extreme underground mining conditions, this drill sleeve ensures reliable performance in high-vibration hydraulic rock drill applications. Constructed from AISI 4145H chrome-molybdenum steel with 1080 MPa tensile strength and HRC 58-62 hardness, it withstands continuous dynamic loads while resisting abrasion and corrosion in harsh environments .

 

Technical Specifications & Design
The sleeve features a 50 mm inner diameter, 75 mm outer diameter, and 120 mm length, adhering to ISO 1204:2016 P6 class dimensional tolerances for precision fit in hydraulic cylinder assemblies and drill rig components . Its zinc-nickel plated coating (12 μm thickness) passes 240+ hours of salt spray testing (ISO 9227 standard), ensuring long-term performance in wet or corrosive mining environments . The 2000 N axial load capacity and 80 N·m threaded connection torque make it suitable for heavy-duty hydraulic systems .

 

Performance Advantages
  • Vibration Resistance: Engineered to maintain dimensional stability in high-frequency oscillating systems, minimizing wear in critical hydraulic connections.
  • Corrosion Protection: Zinc-nickel plating exceeds industry standards, extending service life by 30% compared to standard electroplated coatings .
  • Precision Fit: Dimensions adhere to ISO 1204:2016 P6 class tolerances, ensuring compatibility with standard hydraulic system components.
  • Ease of Installation: Clear torque specifications streamline maintenance processes.

 

Applications
  • Underground Mining: Critical for supporting drill rods in rock drills used in tunnel boring and ore extraction.
  • Heavy Machinery: Used in excavators and loaders to reduce friction in high-pressure hydraulic lines.
  • Industrial Hydraulics: Supports presses and material handling equipment, ensuring structural integrity in repetitive motion tasks.

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