iChina.com

One traditional jaw crusher consists of a frame possessing side walls plus a pair of jaws, a fixed jaw in addition to a swing jaw, disposed therebetween. The fixed jaw plus a swing jaw each possess a crushing face, the crushing faces being arranged inside a spacedapart relationship to define a crushing chamber for getting material to become crushed. The swing jaw is movable concerning a very first position in which the crushing face in the swing jaw is inclined towards the crushing face of the fixed jaw, along with a second positionin which the crushing face in the swing jaw is brought substantially parallel to the crushing face in the fixed jaw, at a predetermined spacing therefrom.

We should know the nature of rocks before using the jaw crusher. Only understand the properties, can we choose suitable jaw crusher, and avoid using unsuitable crushers.

Rock crushing method, in specifically, is the method to drill various sizes and shades of holes in different performance rock stratum by a variety of mining machines. According to the crushing principle, it can be pided into impact, cutting and impact-cutting three categories. Each category has its own application range. They all have unique features and the same crushing theory. The drill which directly crushes the rock requires reasonable structure and size, as well as suitable pressure, rotate speed and torque. The drill bit must be match with the nature of rocks.

Structure, density, humidity, hardness, strength, flexibility, plasticity, brittle, heterogeneity, anisotropy, porosity, ruggedness, drill-ability, etc, everyone is closely related with the crushing effect. To a service-oriented brand integrity,As the professional manufacturer of complete sets of mining machinery, like Jaw crusher, Henan Hongxing is always doing the best in products and service.impact stone crusher:http://www.hxjqchina.com/product-list_12.html

Jaw crusher is suitable for crushing rocks such as granite, basalt, river gravel, limestone, andesite, rhyolitic rocks, diorite, diabase, sandstone, etc., which can widely applied to crush mid hardness and large-scale rocks and ores in mining, smelting, building material, highway, railway, water conservancy chemical and other industries. It is suitable for primary and secondary crushing for all and rocks with compressive strength less than 320 MPa.

When extreme stress is created from the crushing chamber, for instance when an uncrushable object enters the crushing chamber, forces act to move the swing jaw backwards, i.e. away from your fixed jaw, against the toggle plate, to urge thecross beam to slide backwards from the side walls. This motion acts against the biassing action in the cylinders transmitted through the tie rods and crossheads, as described over, which could induce a additional develop up of stress within the crushing chamberleading to an overload predicament.

Having said that, both sides with the cylinders are in communication with an hydraulic manage technique, for providing an hydraulic buffer for that crossbeam and toggle plate against overload throughout the crushing cycle. While in the event of an extreme build up ofpressure through the crush cycle, the management process communicates together with the cylinders to allow backwards movement in the cross beam, so steering clear of an inertial yield of your toggle plate.