In the rocky highlands of northern-central Saudi Arabia, granite resources are abundant but widely scattered across difficult terrain. Traditional stationary crushing lines are limited by long construction cycles and poor mobility. To overcome these constraints, a 150–200t/h granite portable crushing and screening system was deployed to handle high-hardness, abrasive stone materials while supporting rapid deployment and multi-site operations.
Granite is a hard rock with compressive strength ranging from 120 to 250 MPa, rich in quartz and feldspar. This makes it highly abrasive and difficult to crush efficiently. Common issues include excessive wear on equipment, poor particle shape, and low throughput if crushing systems aren’t properly configured. Effective processing requires high-strength structural design, precisely matched chamber geometries, and advanced wear-resistant components.
The portable plant uses a dual-stage crushing and closed-loop screening system. Its modular design allows flexible configuration according to terrain or integration with existing systems. comprising:
Built on a reinforced steel chassis, the unit performs reliably in hot, dusty desert conditions. All components are integrated into a single control platform for synchronized start/stop and simplified on-site mobility.
The primary jaw crusher handles coarse material, while the secondary cone crusher features a deep crushing cavity and pressure-compensation hydraulics to maintain consistent throughput and ensure better aggregate shape.
Jaw plates, mantle, and bowl liner are made with manganese alloy composites, extending wear life by 40% compared to conventional materials, reducing maintenance downtime significantly.
The high-frequency vibrating screen features intelligent amplitude and frequency adjustments, producing cubical aggregates with well-controlled gradation—ideal for concrete, asphalt, and road sub-base applications.
Equipped with atomized dust suppression, noise dampeners, and remote diagnostic support, the unit complies with Saudi Arabia’s updated mining regulations, ensuring environmental responsibility and efficient fleet management.
This plant is currently operating in the Asir region for a granite mining contractor. Daily uptime exceeds 14 hours, with finished material sizes between 0–31.5 mm. Operators report low fuel consumption, minimal recirculation, and consistently high-quality output. The client is now planning to expand with a second plant for another site based on the system's success.
