High-Strength Hex Nut for Hydraulic Rock Drills Engineered for extreme underground mining conditions, this hex nut ensures reliable performance in high-vibration hydraulic rock drill systems. Constructed from 42CrMo alloy steel with 1200 MPa tensile strength and HRC 39-44 hardness, it withstands continuous dynamic loads while resisting abrasion and corrosion in harsh environments .
Technical Specifications & Design The nut adheres to DIN 934 standards (M16x2.0 thread, 24 mm width across flats, 14.8 mm thickness) for precision fit in hydraulic cylinder assemblies and drill rig components . Its zinc-plated surface treatment (8-12 μm thickness) passes 72 hours of salt spray testing (ISO 9227), providing long-term durability in wet or corrosive mining environments . The 200 N·m threaded connection torque and 300 MPa maximum working pressure make it suitable for heavy-duty hydraulic applications .
Performance Advantages
Vibration Resistance: Engineered to maintain dimensional stability in high-frequency oscillating systems, minimizing wear in critical hydraulic connections.
Corrosion Protection: Zinc plating exceeds industry standards, extending service life by 30% compared to standard electroplated coatings .
Precision Fit: DIN 934 dimensions ensure compatibility with standard hydraulic system components.
Ease of Installation: Clear torque specifications streamline maintenance processes.
Applications
Underground Mining: Critical for securing high-pressure hydraulic lines in rock drills used in tunnel boring and ore extraction.
Heavy Machinery: Used in excavators and loaders to maintain structural integrity in dynamic hydraulic systems.
Industrial Hydraulics: Supports presses and material handling equipment, ensuring consistent pressure retention in repetitive motion tasks.
