In the double toggle jaw crushers, the oscillating motion of the swing jaw is caused by the vertical motion of the pitman.
2.
The swing jaw closes, i . e ., it moves towards the fixed jaw when the pitman moves upward and opens during the downward motion of the pitman.
3.
In the single toggle jaw crushers, the swing jaw is suspended on the eccentric shaft which leads to a much more compact design than that of the double toggle jaw crusher.
4.
The swing jaw, suspended on the eccentric, undergoes two types of motion-swing motion towards the fixed jaw due to the action of toggle plate and vertical movement due the rotation of the eccentric.
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