Sand making machine (vertical shaft impact crusher) is suitable for crushing soft or medium hard and extremely hard ore materials with hardness not higher than 320pa. Sand making machine is widely used in large, smelting, building materials, highway, railway, water conservancy and chemical industry and many other departments.

The sand making machine is composed of feeding hopper, distributor, vortex crushing chamber, impeller body, spindle assembly, base, transmission device and motor.

Working principle
The material is added into the sand making machine from the feeding hopper, and is divided into two parts by the distributor. One part enters the high-speed rotating impeller from the middle of the distributor and is accelerated rapidly in the impeller. Then it is quickly ejected from the three evenly distributed flow channels of the impeller. First, a part of the material collected from the distributor is impacted and crushed, and then it is impacted on the material lining in the vortex support chamber together The liner rebounds and strikes the top of the vortex chamber obliquely, and then changes its movement direction, deflects and moves downward. The material emitted from the impeller channel forms a continuous material curtain. The material is subjected to two or more probability impact, friction and grinding in the vortex crushing chamber. The crushed material is discharged from the lower discharge port.

Features
⒈The structure is simple and reasonable, and the operating cost is low.
2.High crushing rate and energy saving.
3.It has the functions of fine crushing and coarse grinding.
4.Slightly affected by the moisture content of the material, the moisture content can reach about 8%.
5.More suitable for crushing medium-hard and extra-hard materials.
6.The product has excellent grain shape, cubic shape, and extremely low content of needle flakes.

Advantages
1.The accessory design is unique.
The sand making machine has the characteristics of simple structure, unique bearing and advanced spindle design, heavy load and high-speed rotation.

2.Long service life.
The wearing parts have low loss, all wear-resistant parts are made of high-quality wear-resistant materials at home and abroad, with long service life.

3.Low maintenance rate, durable.
The material self-lining in impeller and vortex crushing chamber greatly reduces the cost of wear parts and maintenance workload. In the production process, the stone can form a protective bottom layer, the fuselage is wear-free and durable.

4.Reliable performance.
High reliability, stable operation, tight safety device, low noise, environmental protection and energy saving, high crushing efficiency.