1. What's the service life of roller crusher and the spare parts?
General speaking, the roller crusher can serve for over 5 years.
The teeth rollers of roller crusher are the major wear part. For limestone it can serve 2 years while for cobblestone it needs to be replaced in 1 year.
It doesn't matter if the wear part does not work. Each set roller crusher will equip with one more pair of rollers.
2. What about the quality and warranty of Roller crusher?
All the mechanical products of Great Wall Heavy Industry Machinery have 1 year warranty. Great Wall is certified with ISO CE system and has 25 years experience in mining machinery.
http://www.greatwallcrushers.com/product/Roller-Crusher.html
Email: greatwallmails@gmail.com
Roller crusher, as a fine crushing machine, has three types: double roller crusher, three roller crusher and four roller crusher. People are familiar with double roller crusher in the three types. While three roller crusher and four roller crusher are widely used into super-fine crushing progress.
We can see the difference about crushing ways from the number of forming crushing cavities.
Double roller crusher: The two rollers form a V type crushing cavity. The material is fed into the V type cavity and crushed into qualified sizes by the two counter-rotating rollers.
Three roller crusher: Adopted stagger arrangement structure, the three rollers form two crushing cavities. The material is crushed by the upper crushing cavity, and then fall into the lower crushing cavity.
Four roller crusher: Same as three roller crusher, four roller crusher adopt the structure of stagger arrangement, which forms three crushing cavities. The material is crushed by crushed through three cavities by turn, and is crushed three types.