Sand Making Plant

Zhengzhou Kefid Machinery Co., Ltd. is a manufacturer of mining equipments such as Sand Production Line(Sand Making Line), jaw crusher, stone crusher, rock crusher, stone breaker, crushers, grinders, sand making machines, sand washing machines, vibrating screen, vibrating feeders, Pulverizers, conveyors and ball mills.

The Sand Making Machine, also called vertical shaft impact crusher and rubble shaping machine, is a kind of crusher impacted by the materials themselves. It is of high energy but low consumption and of international advanced level developed by introducing foreign outstanding technology of the same type of products. At present, it is the most advanced and practical equipment for medium-sized and fine crushing and shaping.

It is widely used in fine crushing and rough grinding of metal, mineral, building aggregate, concrete, anti-fire material, glass raw material, manufactured sand and all kinds of metallurgical slug. It is also can utilized in shaping of high rank road surface. Compared with other kind of crusher, it is more advanced in intermediate hard, extra hard and abrasive material crushing, such as gravel, quartz, sandstone, basalt, silicon carbide, diamond grain and sintered bauxite.

Manufactured sand is mainly used in construction industry. The increasing insufficiency of natural sands make manufactured sands more and more important. There is a wide range of raw materials to make manufactured sands, like common stone from mountains and pebbles from riverbed. Since our debut in the production of equipments for manufactured sands, our company makes research strictly adhering to sand strandard in construction industry. Manufactured sand produced by equipments from our company has a superior quality compared with natural sand and is appreciated by customers.
Core equipment for manufactured sand production is impact crusher. There are three generations of impact crushers produced by our company and each generation has a superior performance and better economic benefits than its previous one. For impact crusher suitable feed size is required thus primary crushing and secondary crushing is necessary. Impact crusher has a high energy consumption and water is necessary for manufactured sand production, which the customer should keep in mind.

We can provide most suitable design and offer for customers based on following datas:
1. name of the material;
2. feed size;
3. Capacity required.

Below are classical design for manufactured sand production:
1. Vibrating feeder + jaw crusher + cone crusher + impact crusher VSI5X + vibrating screen

High crushing ratio of cone crusher and small crushed size ensures feed size and crushing efficiency of VSI impact crusher. VSI5X impact crusher is the third generation of manufactured sand equipment and has many important approvements on vital working parts,like spindly impact plates which has a much longer life time. Advanced hydraulic set used makes maintenance easier and it is suitable for large scale manufactured sand production line of high automation degree.
This manufactured sand production line has a long life time for spare parts,long consecutive working time and easy maintenance. All this increases the overall economic benifites greatly.
2. Vibrating feeder + primary jaw crusher + secondary jaw crusher + impact crusher VSI5X + vibrating screen

In this design secondary jaw crusher is used to replace cone crusher. It can decrease the once and for all cost of investment and is suitable for medium and small size manufactured sand production line.
The complete sand production line has a long life time for Spare parts,long consecutive working time and easy maintenance. It has a low once and for all investment cost and good overall economic benifites
3. Vibrating feeder + jaw crusher + cone crusher + VSI series impact crusher + vibrating screen

In this design  VSI impact crusher is used to replace VSI5X impact crusher which is used in the first design. VSI impact crusher has a lower investment cost compared with VSI5X impact crusher, it also has hydraulic set and is easy to maintain and change Spare parts.

This is the most economic design. The disadvantage is that PCL impact crusher has no hydraulic system,its maintenance and usage is also relatively complicated. Outstanding advantage of this design is that it has a much lower one and for all investment cost.

Millustration of How Vertical Shaft Impact Crusher Operates:
The stuffs, which fall into the high-speed rotating impeller from the upper of the machine, were stroked with other stuffs, which more around the impeller, because of high-speed centrifugal force .After they strike mutually, whirling fluid is produced between the impeller and outer covering .Through repeatedly striking and rubbing, the stuffs are crushed into pieces and straightly come out of the lower. The operating process circulates repeatedly. And then attains the fineness of the product.

Center Feeding:
Raw material falls down into feed hopper, then enter into impellor through central entrance hole. It is accelerated in high-speed impellor, and then is thrown out at speed of 60-75m/s. When it hits impact plate, it is crushed. Final products come downwards though outlet.

Ring Feeding:
Raw material falls down into feed hopper, and then through ring, it is divided into two divisions by material-dividing plate. One enters into impellor through the center of material-dividing plate. The other falls down from outside of material-dividing plate. Material, which is thrown out by impellor at speed of 60-75m/s, hits material coming down from outside of material-dividing plate. In this way, material is crushed.