Heavy-Duty Spring for Rock Drill Jumbos Engineered to absorb dynamic loads in rock drill jumbos, this spring ensures reliable performance in high-vibration drilling operations. Constructed from 51CrV4 spring steel with a 50N/mm stiffness rating, it balances flexibility and strength to protect pivot points and mechanical components from excessive wear .
Technical Specifications & Design
Core Components:
51CrV4 Spring Steel: Compliant with EN 10089 standards, offering 1800MPa tensile strength and superior fatigue resistance for repetitive loading .
Zinc Plating: Provides 1000-hour salt spray resistance (ASTM B117), preventing corrosion in damp mining environments .
Precision Coiling: Ensures consistent spring rate (50N/mm) across the entire 80mm free length, critical for uniform load distribution .
Performance Advantages
Durability:
Passed 1,000,000-cycle fatigue testing (ISO 10243), exceeding industry requirements for rock drill applications .
Withstands -40°C to +200°C temperatures, adapting to extreme underground and surface mining conditions .
Load Handling:
200N maximum load capacity with 40mm compressed length, ideal for drill arm pivot damping .
Compatible with H12 bolts for secure mounting in structural frames .
Applications
Rock Drill Jumbos: Used in drill arm pivot points, hydraulic cylinder mounts, and vibration isolation systems.
Mining Equipment: Suitable for excavators, loaders, and tunneling machines requiring heavy-duty springs.
Industrial Machinery: Integrates with crushers, conveyors, and presses for shock absorption.
