A crusher is a mechanical device designed to reduce large rocks, stones, or ores into smaller, usable fragments. It achieves precise particle sizes for specific applications.

  • Structure and mechanism: The machine’s steel housing includes fixed and moving jaws, typically driven by an electric motor or hydraulics.

  • Crushing stages: Primary crushing achieves coarse granularity; secondary and tertiary crushers refine the material further.

  • Screening: Vibrating screens sort particles. Oversized pieces recirculate until the desired size is met.

  • Applications: Major infrastructure (dams, roads, bridges), concrete-asphalt production, quarrying, mining, industrial backfill.

2. What is a Mobile Crusher, What Is It Used For, How Does It Operate, and Where Is It Applied?

A mobile crusher is a transportable mini-plant mounted on wheels or tracks, capable of handling crushing and screening modules.

  • Key advantage: Rapid mobilization between sites without dismantling static structures.

  • Power source: Diesel generator or portable electric connection.

  • Configuration: Modular integration of crushers, conveyors, screens allows easy maintenance.

  • Applications: Road projects, rehabilitation works, on-site recycling, hard-to-access mining in mountainous terrain.

3. What is a Stationary Crusher, What Is It Used For, How Does It Operate, and Where Is It Applied?

A stationary crusher is a fixed, large-scale facility installing crushers, screens, and conveyors on concrete foundations for continuous production.

  • Installation: Proper alignment with bunkers, conveyors, and heavy-duty crushers permanently set.

  • Process: Raw feed enters bunkers, crushed in several stages, screened, and stored in silos or stockpiles.

  • Automation: PLC/SCADA monitoring enables remote control and process optimization.

  • Applications: Industrial quarries, mineral processing operations, concrete and asphalt plants, large infrastructure schemes.

4. Differences Between Stationary and Mobile Crushers

  • Speed & mobility: Mobile units ready in hours; stationary plants take weeks.

  • Infrastructure: Mobile requires minimal support; stationary needs power, concrete, water, and dust control.

  • Capacity: Mobile units produce tens to hundreds of t/h; stationary reach several thousand t/h.

  • Flexibility: Mobile adapts to site changes; stationary focused on fixed, high-volume output.

  • Cost: Stationary has higher capital and operation cost but lower unit cost; mobile is less costly to setup, higher per-unit cost.

5. What is a Gypsum (Calcium Sulfate) Crushing and Screening Plant, What Is It Used For, How Does It Operate, and Where Is It Applied?

A gypsum crushing and screening plant processes natural calcium sulfate dihydrate rock into application-specific fractions for construction and industrial use.

  • Raw material traits: Lightweight, thermally stable, chemically inert mineral.

  • Crushing stages: Primary jaw crushers provide coarse breakdown; secondary crushers deliver fine fractions.

  • Screening: Vibrating screens separate by particle size—plaster-grade powder, granules for board production.

  • Grinding/Micronization: Roller or ball mills achieve powder fineness; air classification ensures size distribution.

  • Dust control: Dust extraction or filtration systems within grinding and concentrated feed areas.

  • Applications: Drywall (gypsum board), plasters, specialty cement additives, refractory products, soil conditioners, paint and chemical industries.