River pebbles, calcite, quartz, marble, pebbles, bentonite, iron ore, bluestone, mountain stones, water slag, limestone, weathered sand, diabase, granite, basalt, etc.

Working principle of river pebble sand making machine:
The river pebble crusher plays a role in fine crushing in the crushing production line, and its crushing effect is evident to many customers. The river pebble crusher is suitable for a wide range of materials, and different models and output of river pebble crushers can be selected according to customers' different crushing requirements. At the same time, the rollers of the river pebble crusher are divided into smooth and toothed surfaces, and customers can choose according to their requirements for the crushing fineness of the material.

1. The river pebble sand making machine is mainly composed of rollers, roller support bearings, clamping and adjusting devices, and driving devices.
2. Adjustment of discharge particle size: A wedge-shaped or shim adjustment device is installed between the two rollers, and the top of the wedge-shaped device is equipped with an adjustment bolt. When the adjustment bolt pulls up the wedge block, the wedge block pushes the movable roller wheel away from the fixed wheel, that is, the gap between the two rollers increases, and the discharge particle size increases. When the wedge block is lowered, the gap between the two rollers of the movable roller wheel decreases under the action of the compression spring, and the discharge particle size decreases. The gasket device adjusts the particle size of the discharge by increasing or decreasing the number or thickness of gaskets. When adding gaskets, the gap between the two rollers increases, and when reducing gaskets, the gap between the two rollers decreases, resulting in a smaller discharge particle size.

3. The driving mechanism is composed of two electric motors, which are transmitted to the pulley through a V-belt to drag the rollers and rotate them in opposite directions. When crushing materials, the materials are crushed through rollers from the feeding port, and the crushed products are discharged from under the chassis.
4. For safety reasons, the transmission part should be equipped with a safety cover according to the actual situation.

Technical parameters of river egg sand making machine:

Specification and model

Feed particle size
(mm)