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Rock Crusher has developed a machine to the large stones of small stones, gravel or rock to reduce dust. Rock Crusher can reduce or change the form of waste, so they are better remove and recycle or reduce solid mixture of raw materials (such as ore, rock), so that parts different composition can be distinguished. Shredding is the process of transfer ofadvanced power mechanical advantage from the material consists of molecules bind more strength anddurability
to make more pressure than the crushed material. Reduction technology to keep the material for two Surfaces parallel or tangentially and apply so much that the surfaces together to produce enough energy for the material so that its molecules separate (fracture) are ground orother Orientation with respect to (position) to each other. The first was a hand-stone crushers,the Weight of the stone is always increasing muscle strength, with stone anvil. Hand millsand mortars These types of grinding machines.
The following table describes typical uses of commonly used crushers:
| Type | Hardness | Abrasion limit | Moisture content | Reduction ratio | Main use |
|---|---|---|---|---|---|
| Jaw crushers | Soft to very hard | No limit | Dry to slightly wet, not sticky | 3/1 to 5/1 | Quarried materials, sand & gravel, recycling |
| Gyratory crushers | Soft to very hard | Abrasive | Dry to slightly wet, not sticky | 4/1 to 7/1 | Quarried materials |
| Cone crushers | Medium hard to very hard | Abrasive | Dry or wet, not sticky | 3/1 to 5/1 | Sand & gravel |
| Horizontal shaft impactors | Soft to medium hard | Slightly abrasive | Dry or wet, not sticky | 10/1 to 25/1 | Quarried materials, sand & gravel, recycling |
| Vertical shaft impactors (shoe and anvil) | Medium hard to very hard | Slightly abrasive | Dry or wet, not sticky | 6/1 to 8/1 | Sand & gravel, recycling |
| Vertical shaft impactors (autogenous) | Soft to very hard | No limit | Dry or wet, not sticky | 2/1 to 5/1 | Quarried materials, sand & gravel |
Thank you information form en.wikipedia.org/wiki/Crusher