A mobile crusher is a portable stone crushing and screening machine used in quarries, mining operations, and recycling plants. It is mounted on a wheeled or track-based chassis, allowing it to be easily moved from one site to another. This flexibility enables efficient operation without the need to establish a fixed plant.

The primary function of mobile crushers is to crush large rocks, stones, rubble, concrete, and asphalt into smaller aggregate sizes. These crushed materials are then used in construction, infrastructure, road works, and railway ballast applications.

Typically, a mobile crusher consists of a feeding hopper, a primary crusher (jaw or impact), a secondary crusher, vibrating screen units, belt conveyors, and control systems. The process begins with raw material being loaded into the feed hopper. It then passes through the crusher where it is reduced in size. Afterward, it is screened and separated into different sizes using vibrating screens. The final products are transported by conveyor belts to the stockpile.

These machines are highly preferred for their time- and cost-saving features, especially on temporary job sites. They are ideal for remote areas or where frequent relocation is necessary.

What is a Stationary Crusher, What Does It Do, How Does It Work, and Where Is It Used?

A stationary crusher is a fixed stone crushing and screening plant designed for continuous and high-capacity operations. These plants are permanently installed and used for long-term projects in large-scale mining quarries, marble or granite pits, and fixed construction sites.

Stationary crushers include primary, secondary, and tertiary crushers, vibrating screens, feeders, conveyor belts, and control units. They crush large stones into various sizes and sort them according to project requirements.

The working principle involves feeding raw material into a bunker, followed by initial crushing. The material is then processed through additional crushers and finally sorted using screens. The final aggregates are used in road construction, concrete production, asphalt mixing plants, and other infrastructure applications.

Although they require a higher initial investment, stationary crushers offer high efficiency and cost-effectiveness for large-scale, long-duration projects.

Differences Between Mobile and Stationary Crushers

  1. Mobility: Mobile crushers are portable, stationary crushers are fixed.

  2. Installation: Mobile units require minimal setup; stationary ones need extensive installation work.

  3. Applications: Mobile units are for small to medium projects; stationary ones are ideal for high-volume, long-term operations.

  4. Cost: Mobile systems have lower upfront costs; stationary ones offer better ROI in large projects.

  5. Maintenance: Mobile units require more frequent maintenance; stationary units allow centralized, controlled maintenance.

  6. Efficiency: Stationary crushers generally provide higher production efficiency; mobile units offer operational flexibility.

What is a Crawler Crusher Plant, What Does It Do, How Does It Work, and Where Is It Used?

A crawler crusher plant is a fully mobile crushing and screening unit built on a tracked system instead of wheels. It is controlled via remote control and is designed to operate on rugged, uneven terrain, where conventional equipment may not be feasible.

The crawler mechanism allows the machine to move independently without the need for towing. This is especially beneficial in military zones, mountainous areas, dam projects, and inaccessible mining fields.

It works similarly to a mobile crusher: materials are loaded into the feeder, passed through crushers, and sorted via screens. The key difference lies in its mobility on harsh ground and the use of diesel generators for independent operation.

Crawler crushers are perfect for operations with space limitations and where flexibility and on-site maneuverability are critical. They are also useful for emergency responses like post-disaster debris management.