A crusher is a heavy-duty industrial machine designed to break down large rocks, stones or ore into smaller, usable sizes. The raw material is fed into a primary crusher where large chunks are initially crushed. It then continues through secondary crushers—typically cone or impact crushers—that further reduce particle size. The output is passed over vibrating screens to separate it into different sizes, and conveyor belts transport finished aggregates to stockpiles. These systems are fundamental in producing aggregates for construction, road bases, dam projects, railway ballast, and recycling applications like crushing demolition debris.

A mobile crusher is a transportable crushing and screening plant mounted on wheels or tracks, enabling rapid setup on-site. A diesel engine powers the hopper, crusher, screening system and conveyors, all integrated into a single platform. During operation, feed material enters the hopper, is crushed, screened into size categories, and offloaded via conveyors. Mobility makes these machines ideal for short-term projects, infrastructure maintenance, quarry exploration, and urban recycling sites. The main advantages are quick deployment and flexibility, while the limitations are lower throughput and higher per-ton operation costs compared to fixed plants.

A fixed crusher plant is a permanently installed, large-scale crushing and screening operation. It comprises primary jaw crushers, secondary and tertiary cone or impact crushers, multi-stage vibrating screens, high-capacity conveyor systems and advanced automation. Material is fed continuously into the plant, broken down across stages, screened, and transferred to segregated stockpiles. Used extensively in large quarries, mining sites, cement plants, port construction, highway and airport projects, these plants provide high throughput, cost efficiency per ton, and long-term operational reliability. The tradeoffs include high investment, extensive installation time, and lack of mobility.

Differences between fixed and mobile crushers revolve around mobility, setup time, capacity, power source, cost and usage scenarios. Mobile crushers offer rapid deployment, portability, and short-term application suitability with diesel-based power and lower upfront costs. However, they yield lower capacities and higher cost per ton. In contrast, fixed crushers draw power from the grid, handle higher throughputs with lower per-ton cost, and are best suited for long-term, high-volume operations. The initial investment and installation effort are significant, and relocation is difficult. Mobile systems provide flexibility, while fixed plants deliver efficiency and scale.

A chrome crushing and screening plant is a specialized facility for processing mined chromium ore. It subjects the ore to staged crushing—starting with jaw crushers and continuing with cone or impact crushers—to achieve target particle sizes. The crushed output is sorted via vibrating screens into different size fractions. These fractions are then stockpiled and prepared for metallurgical processing such as magnetic separation, flotation, or smelting. Such plants support stainless steel production, alloy steel manufacturing, foundries, chemical industries, refractory production, and defense applications. With integrated automation and environmental controls for dust suppression, water management, and noise mitigation, these facilities ensure consistent, high-efficiency preparation of chrome ore.