1.  Simple  structure,  smooth  operation,  stable   performance  and  leading output among similar products;

2. After adopting CO₂ protection welding treatment, a machine frame  is tight and durable;

3. All easily wom parts adopt high manganese steel, to prolong the  service life of mainframe;

4.  A  spring  locking  device  can  provide  stable  crushing  force  and  excessive iron release protection;

5.   A   hydro-cylinder   for    chamber    clean    can  quickly  remove  aggregates  and  not-  easily  crushed  materials,  to  greatly  shorten

maintenance time.

6. A  material-discharging  port  is  hydraulically adjusted, so that the  adjustment is convenient, quick and accurate;

7. A labyrinth type dust proof ring is used for sealing to ensure clean  lubricating oil deam;

8.  The  mounting faces  of  moving  and  static  gear  plates  both  are  subjected  to  inish  achining,  and  fillers  are  not  used,  so    their  replacements are convenient and quick;

9.A lubricating system is provided with an oil return and temperature  protection device, and interlocked with a main motor, so that the main  motor is protected from damage.