A 300‑ton-per-hour river‑gravel sand production line consists of machines of various models and specifications, with different equipment employed at each processing stage.

First: Coarse crushing of river pebbles

The raw large river pebbles are fed uniformly from the hopper by a vibrating feeder and conveyed to the European‑style jaw crusher for coarse crushing. After coarse crushing, the pebbles are screened and then sent to a single‑cylinder hydraulic cone crusher for further crushing.

Secondly: Fine crushing of river pebbles

After being fed into the single-cylinder hydraulic cone crusher, the river pebbles undergo intermediate and fine crushing. They are then screened using a maintenance-free, oil‑lubricated circular vibrating screen: larger particles are returned to the single-cylinder hydraulic cone crusher for further crushing, while the remaining material is sent to the sand-making machine for sand production.

Again: River pebble sand-making operation

The river pebbles, having been processed by a single-cylinder hydraulic cone crusher to achieve a finer particle size, are then fed into a sand-making machine for further crushing and shaping.

Finally: River pebble sand washing operation

The sand produced by a sand-making machine can ultimately be processed with a sand washer to remove stone dust and impurities, thereby enhancing the quality of the sand and gravel and making it cleaner.

A state-of-the-art, fully automated river‑pebble sand‑making system, coupled with a well‑designed and optimized production line, is the cornerstone of producing high‑quality, high‑yield river pebble sand. Such a sand‑making production line delivers premium finished products, and the resulting sand and gravel boast the following superior qualities, making them highly sought after by customers.

1. The finished sand is of high quality, with excellent particle shape;

2. The finished sand has a well-graded particle size distribution, and the product particle size is controllable.

3. Finished sand has low production costs and high overall economic benefits.

4. The finished sand meets all relevant national standards and is environmentally friendly.

A complete sand-and‑gravel production line consists of equipment of various models and specifications, with pricing primarily determined by the configuration plan and the choice of equipment models. Production capacity also plays a key role: lines with higher capacities command higher prices. Generally, the more advanced the configuration and the greater the output, the higher the cost. Additionally, equipment prices vary depending on the manufacturer; different brands offer different price points. At Luoyang Dinghuang Heavy Industry, every piece of equipment is backed by guaranteed quality, and thanks to direct factory‑to‑customer sales, we provide competitive pricing.

The complete system is manufactured and supplied by Dinghuang Heavy Industry. Its primary function is the processing and crushing of natural sand and gravel aggregates, with a designed capacity of 300 t/h. The process design is well‑optimized, the equipment configuration is highly reliable, and the system delivers high production efficiency, excellent product yield, and superior particle shape, fully meeting the requirements of production and construction.