650 T/H pebble crushing capacity
Suitable for high-hardness pebble stone
Closed-loop crushing and screening process
Stable aggregate quality for construction use
Zhenggang Machinery configured a complete pebble crushing production line according to the hardness of the raw material and the customer’s finished aggregate requirements. The vibrating feeder sends pebble material evenly and continuously into the jaw crusher for coarse crushing. After primary crushing, the material is sent to the cone crusher or impact crusher for medium and fine crushing. The crushed material is then screened by vibrating screen. Qualified aggregate is conveyed to the finished material pile, while oversized material is returned to the upper crushing stage for re-crushing until it meets the customer’s required particle size.
Pebble hardness, raw material size, site layout, and aggregate requirement evaluation
Pebble crushing, screening, return crushing, and conveyor system configuration
Feeder, jaw crusher, cone crusher, vibrating screen, conveyor, and stockpile system installation
Operator training for crusher adjustment, screening control, return material handling, and maintenance
The project was implemented through raw material analysis, site layout planning, crushing process design, equipment configuration, installation, commissioning, and operator training. Zhenggang Machinery focused on building a stable 650 T/H pebble crushing production line with staged crushing and closed-loop screening to ensure continuous operation, controlled aggregate size, and reliable finished material quality.
After commissioning, the 650 T/H pebble crushing production line provided the customer with stable aggregate processing capacity and improved finished material quality. The staged crushing process helped reduce the pressure on individual machines, while the vibrating screen and return crushing system improved particle size control. Qualified materials were conveyed directly to finished stockpiles, and oversized materials were returned for further crushing. This closed-loop process helped the customer produce reliable pebble aggregates for concrete, road construction, building materials, and infrastructure projects.
| Metric | Before | After | Improvement |
|---|---|---|---|
| Pebble Processing Capacity (T/H) | 460 | 650 | 41 |
| Finished Aggregate Quality (%) | 72 | 94 | 31 |
| Oversized Material Control (%) | 68 | 93 | 37 |
| Equipment Downtime (%) | 15 | 11 | -27 |
Built a 650 T/H pebble crushing line
Processed high-hardness pebble material
Improved finished aggregate size control
Used closed-loop screening and re-crushing
Reduced unnecessary equipment wear
Supported road and concrete aggregate supply
“Zhenggang Machinery provided a reliable pebble crushing production line for our aggregate project in Porto. The staged crushing and screening process helped us process hard pebble material efficiently, control finished aggregate size, and maintain stable production for construction material supply.”
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