A mobile crusher is a portable crushing and screening machine mounted on wheeled or tracked chassis, designed to process materials such as stone, concrete, asphalt, ore, or demolition waste directly at job sites. Its modular structure includes a feeding hopper, primary crusher (usually jaw type), secondary crusher (impact or cone), vibrating screen, conveyor belts, and a power unit. Operational workflow involves feeding raw material, initial reduction in the primary crusher, further size reduction in the secondary crusher, and final particle size separation via screens. Mobile crushers are fast to deploy, do not require fixed foundations, and can operate on diesel or hybrid power independent of grid electricity. They are commonly used in mining, quarrying, road construction, recycling facilities, demolition clean-up, and remote areas without infrastructure.

A stationary crusher is a fixed crushing and screening plant installed on a concrete foundation, designed for high-capacity and long-term production. These systems are typically located in large-scale aggregate or mineral processing sites such as quarries, mines, cement and asphalt plants, dam and port construction projects. Components include a feeding hopper, primary crusher, secondary and often tertiary crushers, screening modules, extensive conveyor systems, and automated control. The process continuously feeds material through multiple crushing stages, screens it, and transports the final product to storage areas. Stationary crushers offer high throughput, continuous operation, automation, and low unit costs per ton. They rely on electrical power and require extensive infrastructure and design for installation.

The differences between mobile and stationary crushers are significant. Mobile systems are transportable, quick to set up, and powered independently from electrical grids, offering flexibility and on-site processing. Stationary systems are permanent, electrically powered, and engineered for peak production efficiency and long-term operation with a higher initial installation cost but greater capacity and lower operational cost per output unit. Mobile units are preferred for short-term or temporary projects, whereas stationary plants are ideal for long-duration, high-volume industrial applications.

Crusher cast parts are essential wear components made via casting processes using abrasion-resistant alloys such as manganese steel, cast iron, or chromium-enriched steels. Key cast parts include jaw plates, cone crusher mantles and concaves, impact crusher rotors, blow bars, liners, screen panels, support springs, conveyor drums, and pulleys. These parts endure high compressive stress, abrasion, and impact, enabling the breaking and shaping of raw material particles. They are used in mining operations, quarrying, recycling plants, and concrete/asphalt production facilities. By employing high-quality cast parts, crushers maintain efficiency, reduce downtime, and extend service life. Proper alloy selection, heat treatment, and regular inspections are critical to their performance.