Heavy-Duty Slotted Nut for Rock Drill Jumbos Engineered for extreme mining environments, this slotted nut ensures reliable mechanical locking in rock drill jumbos. With an M16 x 2.0 thread and 8.8 grade carbon steel construction, it provides high tensile strength (800 MPa) and resistance to vibration and shock, making it ideal for critical hydraulic and structural connections .
Technical Specifications & Design
Core Components:
Carbon Steel Construction: Compliant with ASTM A193 Gr. B7 standards, offering superior durability in harsh mining conditions .
6-Radial Slot Design: Works with a 5mm diameter cotter pin to prevent loosening under dynamic loads, ensuring long-term stability .
37° Chamfered Edges: Facilitates smooth installation and alignment with mating threads .
Performance Advantages
Environmental Resilience:
1000-hour salt spray resistance (ASTM B117) protects against corrosion in wet or acidic mining environments .
Operating temperature range of -20°C to +120°C withstands extreme conditions .
Mechanical Strength:
8.8 grade rating ensures reliable performance under high torque applications (up to 350 N·m) .
Tested to 1.5x rated load without deformation, exceeding industry standards .
Ease of Use:
Standard 1/2″ NPT compatibility simplifies integration with existing hydraulic systems .
Lightweight design (0.5 kg) reduces installation effort without compromising strength .
Applications
Rock Drill Jumbos: Secures hydraulic cylinders, drill rods, and structural components in high-vibration environments.
Mining Equipment: Used in excavators, loaders, and tunneling machines for critical fastener applications.
Industrial Machinery: Suitable for agricultural equipment, cranes, and presses requiring vibration-resistant connections.
