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Gyratory And Roller Crusher Comparison

Gyratory and roller crusher can be used in stone primary and secondary crushing plant. The two crushing machines are mainly for breaking stone materials into small size for the next production requirements. This two equipments have different functions and features, here Zenith will give you some comparison for your choice of these two machines.

In gyratory crushers the stress to the feed is applied between a stationary and a movable surface. The crushing head is employed in the form of a truncated cone, mounted on a shaft, the upper end of which is held in a flexible bearing, whilst the lower end is driven eccentrically so as to describe a circle. The crushing action takes place around the cone.

The roller crushers operate on the principal that the stress (to the feed) is applied between the rollers or between a roller and a crushing surface.

Type Comparison

In the primary gyratory crusher the stress is applied to the feed by pressure as the conical head periodically approaches the bowl. The primary gyratory crusher is a large, heavy and expensive machine. It is used only for special materials and high through put. As the crusher is continuously in action, the fluctuation in the stresses is smaller compared to the jaw crusher but the power consumption is lower. It gives a finer and more uniform product compared to the jaw crusher.

Double Roll Crusher: Double roll crusher consists of two rollers, which rotate towards each other and are separated by an adjustable gap. The gap can be adjusted according to the size of the feed and the required size of the product. Rollers with diameters up to 2m can handle feed sizes up to 1m. From soft to moderately hard materials, throughputs as high as 3500T/hr can be achieved.

Single-Roll Crusher: In the single roll crusher, a crushing roller acts against a crushing plate, which is held either by springs or a hydraulic system. This design helps in coarse crushing of moderately hard to soft materials.

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