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Specifications
primary jaw crusher machine: 
1. CE, ISO 9001:2008 
2. Stable performance 
3. Good maintainability 
4. Capacity: 50-1100 t/h 

1.Introduction of jaw crusher/breaker for gravel stone line:
♦  It imitates animals' jaw movement to complete stones crushing which applied widely in medium-level granularity crushing of various ores and chuck of materials in the mine industry.  
♦ The highest compressive strength of stone crushing is 320Mpa and it is the most widely used crushing equipment at present. 
♦ Combining with advanced technology, results from test base and feedback from our clients, we unremittingly innovate and improve on the basis of many years’ professional experiences to make performance of our this crusher superior to others. 
 
2.Working principle of jaw crusher/breaker for gravel stone line:
♦ When machine is working, the motor drives both belts and belt rollers, and makes the jaw up and down move through the eccentric shaft. 
♦ The angle contained by toggle plate and moving jaw plate becomes bigger when moving jaw rises, and consequently pushing the moving jaw plate to move towards the fixed jaw plate. Meanwhile, the materials will be extruded, twisted and crushed in this process.
♦ The angle between toggle plate and moving jaw becomes smaller when moving jaw descends, the moving jaw plate departs from the fixed jaw plate with the force of pulling rod and spring and at the same time, the final crushed materials will be discharged from the outlet freely under gravitation.
♦ From the above-mentioned procedure, we can know that the operation is intermittent and the process of crushing and discharging materials is alternated constantly. 
With the motor, the moving jaw moves continuously to do cycle crushing and outputting to achieve the goal of volume production.
  
3.Advantages of jaw crusher/breaker for gravel stone line:
♦ High crushing ratio and uniform grain size, simple structure but reliable performance, easy maintenance and economical operation.
♦ Jaw crusher sets a deep cavity and no death zone which improve the capacity of input.
♦ Spacer dumping-mouth adjusting device which is reliable and convenient, what’s more, it has wide adjusting range which increases the flexibility of equipment.
♦ Jaw crusher owns safe and reliable lubricating system, and it is easy to change parts, moreover, it features as small amount of working for machine attention.
♦ We use the superior manganese steel casting to make the main part, especially the perishable parts.
♦ More energy conservation: stand-alone can save energy by 15%-30% and system’s energy conservation can be more than twice.
♦ Big adjusting rang of output which can satisfy various users’ demands.
♦ Low noise and little dust.