Features: 1. The equipment of roller in the system of sand industry system sand machine, can make the yield increased by 30% to 40%, the total energy consumption can be reduced by 20% - 30%. 

2. The roller system sand machine structure is compact, light weight, small volume, for the same capacity requirements of system operation, use of roller system sand machine can significantly save investment. 

3. Simple structure, small footprint, convenient to operate and maintain. 

4. The interior is equipped with dust-proof plate, sealed performance is good, to avoid the broken after the tiny material of splash, little dust, low noise, have bigger improve work environment. 

5. The new roller system sand machine roll weight is optimized design, equipment use life does not need to change the mill roller body, and the old type of roller machine using a year need to disassemble the overhaul, replacing the roller body, save customers a lot of precious capital. 

6. The roller system sand machine can be mounted on the roller body repair welding wear-resisting lining board, wear resistant lining board adopts domestic advanced wear-resistant material, has a long service life, is not easy to damage, easy maintenance, etc. Service life can reach more than a year in a row, wear serious, remove boot lid can be mended to use. Small amount of maintenance and low cost, this is unmatched by any other type of crusher. 

7. The machine is equipped with safety protection device, when have unexpected metal iron into the crushing cavity, protective device, iron leakage of the normal operation of equipment. 

8. To the roller system sand machine roller body roll gap in arbitrary adjustable between 1 mm to 20 mm, according to the requirement of the crushing granularity after adjusted the roll gap, crushing granularity can get reliable control, all with ideal particle size by crushing cavity beneath the eduction. 

9. Simple and reasonable structure, low running cost, stable running, high efficiency and energy saving, high grinding efficiency, big crushing ratio. 

10. This machine is a low speed and high pressure on the working principle of roller extrusion. Material from crusher upside vertical fall into in the crushing cavity, produced by between two rollers, under the strong pressure of extrusion materials has become the most tiny particles.