http://www.conecrusherplant.net/products/crusher/mobile-jaw-crusher.html
Mounted on robust, built to last, semi-trailer chassis, the famous Parker RockSizer or RockSledger range of primary jaws, designed to crush the hardest of rocks or equally demolition materials, are combined with matched, high strength feeder/grizzlies and integral product conveyors to give owners portable primary crushing at its best. With a range of drive options and six jaw sizes to choose from.
Features:
1.High performance: Combining optimal designing of chamber type with applying reasonable speed and stroke, this kind of machine does more work with the same dynamic cone diameter. Therefore, this machine is of high-performance and manufacturing capacity comparing with other cone crusher of the same type.
2.Good product size composition: The crusher adopts laminated crushing principle to make final products of cubic shapes stand for larger proportion. Acicular and flake shape products decrease and size fraction much more well-proportioned.
3.Good stability: If metal or other non-broken material comes into the chamber, it will be released when goes through the protection device and then the device will reset automatically. The protection device has fixed discharge opening returning point and the original discharge opening can return immediately after the metal going through the crushing chamber.
4.Convenient Cleaning-up: If the crusher stops under loading condition, hydraulic cleaning system can clean up the crushing chamber quickly