In recent years, with comprehensive development of global highway, railway, water conservancy and other infrastructure projects, gravel materials market has become increasingly popular. Natural sand resources supply increasingly tight, at the current demand for high strength materials, mechanisms sand effectively compensate for shortages of natural sand resource.

 

Mechanisms sand is artificially selected raw ore and sand made by other processing equipment such as sand making machine, cobble is one of major mechanism sand materials. Cobble is a natural stone, experience flash floods during formation over the impact of water handling and other continuous extrusion, friction. It has the features of hard quality, sharp color, good pressure resistance, wear resistance and corrosion resistance and is ideal mechanism sand materials.
 

 

At the same time, it is precisely because cobble has hard, wear-resistant properties, resulting in river gravel crushing is difficult and much more wear and tear on the machine. To this end, for river gravel characteristics and processing problems, Kefid designed a professional and practical river gravel sand production line. The production line mainly consists of vibrating feeder, HPT hydraulic cone crusher, 5X new sand making machine, vibrating screen, sand washing machine and other equipments. HPT hydraulic cone crusher is the dedicated crushing equipment for river gravel and other high hardness materials, it adopts unique hydraulic device and laminated crushing principle and has advantage significant  in hard rock crushing field.

 

As the key link for shaping and crushing in river gravel sand production line, sand making machine applications is also very important, it is directly related to the discharging material shape and capacity. Kefid VSI sand making machine is the latest generation of sand making equipment which introduced latest German technology and also has a number of independent patent property rights.It uses deep cavity type rotor design optimized, the material throughput increased by 30%; convenient for stone dozen stone and stone iron conversion dual purpose bulk material disk, greatly improving the efficiency and capacity; combined hammer design, rhombus impact block, the upper and lower adjustable backplate, the United States highly wear-resistant high-temperature resistance materials, improve equipment life and reduce the cost.

 

According to numerous customer feedback, Kefid VSI sand making machine can be described core configuration as river pebbles sand line. It is not only has high efficiency, large output in river gravel production, but also the finished product has perfect grain shape, reasonable grading in full compliance with international standards for construction sand and greatly polular in gravel building materials market.