Wednesday, October 27, 2010

jaw crusher -- a primary crushing

Jaw crusher is heavy duty machines. They are robustly manufactured. Jaw Crusher consists of a main frame and two plates which move like jaws.
Both jaws are adjusted to an intense angle to each other. First jaw is pivoted in such a manner that it moves relatively towards another fixed jaw. The movable jaw plate pivoted at the top on the swing-jaw shaft. In the jaw type of crusher oscillation of pivoted jaw is caused to motion by the action of toggles and pitman, that moves upside and down actuated by the eccentric through the medium of pulleys mounted on the drive shaft.
jaw crusher is built with high class quality ultrasonically tested steel plate base frame, eccentric shaft finished to a high degree of accuracy to give an exact stroke to the pivoted jaw, heavy duty self aligned double roller for smooth running of the machine, high grade cast steel jaw stock and housings, high quality chrome manganese steel jaw plates for durable crushing, well balanced flywheels to break hard rocks regularly, and continuous lubrication is applied to the pitman-toggle mechanism to enable the jaw crusher run safely.
The swing jaw interferes against the toggles by tension rod and spring. To minimize the periodic character of the load on the oscillating jaw, heavy flywheels are mounted of the drive shaft. Jaw crusher breaks rock only during that half of each oscillation. Movable jaw is placed completely to influencing loads. Material should be fed into the jaw intermittently arrested and discharged to fall from the nipped aperture.
Type of Jaw Crushers :
Depending upon the mechanism and application we manufacture mainly three type of jaw crushers.
Double Toggle Grease Type Jaw Crusher with two toggle plates in crushing mechanism uses grease for the lubrication.
Double Toggle Oil Type Jaw Crusher with two toggle plate in the crushing process but uses oil to lubricating.

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