A sand making plant is a facility designed for producing artificial sand and aggregates. It uses equipment like crushers and screens to transform raw materials such as granite, river pebbles, and limestone into sand with specific size requirements.

The output of these plants includes both stone aggregates and manufactured sand, which is why they are also called aggregate production lines.

 

The sand produced by the sand making plant has different particle sizes. The following are some common finished sand specifications:

Coarse sand: 0.5 mm–1 mm

Medium sand: 0.25 mm–0.5 mm

Fine sand: 0.125 mm–0.25 mm (125 μm–250 μm)

Extra fine sand: 0.0625 mm–0.125 mm (62.5 μm–125 μm)

 

A complete sand making line typically involves four stages: crushing (primary and secondary), fine crushing and sand making, screening, and sand washing. Each stage is interconnected to ensure efficient production and high-quality output.

1. Crushing (Primary and Secondary)

Raw materials are fed evenly into a jaw crusher through a vibrating feeder for initial crushing, turning large stones into medium-sized pieces. The coarse material is then conveyed to a cone crusher (or impact crusher) for secondary crushing.

 

2. Fine crushing and sand making

The medium-sized stones are sent to the sand making machine for further crushing, creating sand that meets the required specifications. This is the core stage of sand production, affecting the size and shape of the final sand product.

 

3. Screening

The crushed sand is sorted using a vibrating screen, which separates sand that meets the required size specifications from those that do not. Any material that doesn't meet the standards is sent back for further crushing. This step ensures consistency in the size of the final sand product.

 

4. Sand washing

The screened sand is cleaned using a sand washer, removing any remaining soil, dust, and impurities, which improves the cleanliness of the sand. This step ensures the purity of the final sand, making it more suitable for construction use.

 

As a manufacturer of sand making equipment, HUAZN Machinery specializes in designing customized sand production lines for various materials, such as granite sand production lines, basalt sand production lines, and limestone sand production lines.