The jaw crusher, as a key piece of equipment in the coarse crushing stage, is widely used in industries like mining and construction. Its core working principle involves the collaborative action between the swing jaw die (jaw movable) and fixed jaw die (jaw fixed), which together crush material in the V-shaped crushing chamber formed by the two jaw dies.
Core Components Breakdown
Jaw Dies: These include the fixed jaw die (mounted on the frame) and the swing jaw die (connected to the drive mechanism). Both are made of high-manganese steel and can be replaced to suit different materials.
Rim Liner: A wear-resistant component located inside the frame, protecting the equipment from material impact and wear.
Wedge System: Some models use a wedge system to fix the jaw die, ensuring stability and allowing for replacement after wear.
Key Parameters
Jaw Angle: Refers to the angle between the two jaw dies, which directly affects the crushing efficiency and overload protection.
Open Side Setting (OSS): The maximum gap between the jaw dies when stationary, determining the initial particle size of the crushed material.
Closed Side Setting (CSS): The minimum gap, controlled by the OSS and stroke adjustments.
Jaw Die Selection Guide
Choose jaw dies based on material characteristics (such as hardness and size):
Super Teeth: Ideal for high-hardness rocks (e.g., granite).
Quarry Teeth: A general-purpose design that balances crushing efficiency with wear resistance.
Multi-teeth Design: Specifically designed for recycling lightweight materials (e.g., construction debris).
Application Scenarios
From river gravel to asphalt recycling, the diverse designs of jaw dies allow the equipment to handle a wide range of operating conditions. Additionally, the protective function of the rim liner further extends the service life of the entire machine.
