Mechanical sand is the rock particles made by the crushing and screening equipment with a number of technical indicators such as fineness modulus of 2.6~3.0, stone powder content of 3% to 8%, needle-like <8%, water content of 3% to 5%,etc. It can be widely used in concrete and dry mortar products. Sand, cement, industrial waste is the basic composition of concrete and dry mortar materials.

 

Mechanical sand production generally use pebbles, limestone, granite, river pebbles and other stones as raw materials and need to be made through professional sand making machine to meet the grain size requirements. VSI sand making machine is the new sand making equipment which introduced advanced technology in Germany, set three crushing in one, is a professional crushing machinery. It can provide high quality gravel aggregate for expressway, high speed railway, concrete mixing plant, dry mix mortar production line.

 

According to the introduction of Kefid R&D center engineers, VSI sand making machine's deep cavity rotor optimized design make the material throughput increased by 30%, the production efficiency has been improved. And it use the high wear-resistant and high temperature resistance material back plate, as well as the combined hammer and other innovative design, improve the utilization of materials, making the machine life increased by 48%.

 

At present, Kefida VSI sand making machine has been widely used in many countries and regions of sand production line. The effect is significant and it meet the environmental protection production standards.