Spring coal crushing machine

　　Spring coal crushing is cone crusher which is the earliest appearance in the world, and it is used widest and larger quantity crush mechanism in present. With the improvement of the series of Symons cone crusher, their structure is more perfect and the technology parameter is more advanced, so these crushers have excellent performance in the aspects of manufacture, installation, use and maintenance etc. Cone crusher is widely applied in metallurgical, construction, road building, chemical and phosphatic industry. Cone crusher is suitable for hard and mid-hard rocks and ores, such as iron ores, copper ores, limestone, quartz, granite, gritstone, etc.
　　A cone crusher crushed rock by squeezing the rock between an eccentrically gyrating spindle, which is covered by a wear resistant mantle, and the enclosing concave hopper, covered by a manganese concave or a bowl liner. As rock enters the top of the cone crusher, this crusher becomes wedged and squeezed between the mantle and the bowl liner or concave. Large pieces of ore are crushed once, and then fall to a lower position (because they are now smaller) where they are crushed again. This process continues until the pieces are small enough to fall through the narrow opening at the bottom of the crusher.

　　Spring cone crushers are widely used in industries like metallurgy, construction, road building, chemistry etc, to crush many kinds of mid-hard or hard rocks and ores such as aggregate, limestone, granite, basalt, quartz etc. The standard ones are used for intermediate crushing; the medium ones are used for fine crushing; and the short head ones are used for super thin crushing.
　　The spring cone crusher consist of frame, transmission device, hollow eccentric shaft, bowl-shaped bearing, crushing cone, springs and hydraulic pressure station for adjusting discharge opening.

1. High productivity; high quality
2. Less machine down time
3. Easy maintenance with low cost
4. Unique crushing ability in primary, secondary and tertiary crushing