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Jaw crusher is the vital equipment in crushing industry.
Appliable Materials: Limestone, granite, pebbles, cobble, iron ore, basalt and all kinds of hard and soft ores with compressive strength not higher than 320 Mpa.
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PFW impact crusher is a promising crushing equipment with the advantages of small size, simple structure, high crushing ratio, low energy consumption, high production capacity, even product granularity and selective rock crushing.
Impact crusher applies to both soft material and very hardness material. PFW impact crusher hammer machine adopts mechanical clamping structure firmly fixed on the rotor and when the rotor rotates will make big rotary inertia. Relative to the hammer crusher, impact crusher rotor with greater momentum, adapt to the broken more hard materials, have low energy consumption. In addition, the impact crusher can be convenient and flexible to adjust the particle size as well as has the wide adjustment range. PFW impact crusher through a variety of ways to adjust the particle size, such as adjusting the rotor speed, adjust the gap back plate and the grinding chamber and so on. Gap adjustment can be adjusted by mechanical or hydraulic, with hydraulic adjustment system can be easily operated locally via a button or fortune control system to complete the adjustment of the gap. The hammer crusher can adjust the particle size achieved by replacing the bottom of the sieve
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The small jaw crusher, also called mini jaw crusher, is designed for fast crushing of aggregates, ores, minerals, coal, coke, chemicals and other similar materials.It has two type: fixed and portable, electrical motor or diesel engine
When the small jaw crusher working, belt and belt pulley are driven by a motor. The movable jaw moves up and down via eccentric shaft. The angle between fixed jaw and movable jaw becomes smaller when the moving jaw runs down, then the materials are crushed into pieces. It becomes bigger when the movable jaw runs up. The movable jaw plate leaves the fixed jaw plate under the action of tension rod and spring , then the end products come out from the crushing cavity
1 High reduction ratio and even final particles. 2 Simple structure and easy to be maintained. 3 Easy replacement of wearing and spare parts. 4 Reliable operation and long service life. 5 Convenient maintenance with low cost. 6) Electric motor or diesel engine
Henan Baichy Machinery Equipment Co,.Ltd is a mining factory manufacturer mainly engaged in manufacturing crushing machinery, grinding equipment, mobile crushing plant and mineral processing machines, integrates research and development,design, manufacturing, sales and after-sales service.
Factory Add : Wulong Industrial Park, Zhengzhou, China Office Add: Floor 6,Tower B,Xiyuan Square, Zhengzhou, China Email : [email protected] Tel : +86-371-86555722
Product Introduction JXSC jaw type rock crusher is usually used as a primary crusher and secondary crusher to reduce the size of medium-hard materials to smaller physical size. Jaw rock crushers are capable of working with the mobile crushing station, underground crushing because of its related small volume. Capacity: 1-1120TPH Max Feeding Size: 120-1200mm Application Mining, metallurgy, building materials, quarrying, gravel & sand making, aggregate processing, recycling, road and railway construction and chemical industry, etc. Suitable Material Granite, marble,basalt, limestone, coal, quartz, pebble, iron ore, copper ore, etc
40 years of manufacturing and engineering experience keep us innovative and knowledge in the rock break machines and its applications, which thus provide reliable industry rocks crushers and solutions for every customer using jaw crusher manufacturers JXSC machines to meet their production goals. The jaw crusher machine family consists of different sized models that are designed to bring maximum output with minimum cost. Some workplaces have limited conditions and are unable to provide electricity or are underpowered. According to these conditions, JXSC specially designed diesel jaw crusher. The diesel-jaw crusher is actually with electric, but the original jaw crusher was added with a diesel engine equipment that a dual-purpose crusher
JXSC the crushers machine with a non-welded frame has been proved that it has outstanding solid and durable strength. All the alloy casting frame components turn out that with premium quality, wear-resistant property
The design of pitman and long stoke improves productivity and reduction. A wider feeding material opening increases the volume of insulating material and makes the ore material entering the crushers crushing chamber smoothly. A sharp angle makes the materials flow down speed faster and reduces the wear cost. Besides, the strike force could be stronger thus increase the production efficiency as well as the reduction ratio
Types of jaw crushers: on the basis of the stone break equipment size and capacity can divide into a heavy and small(mini) portable jaw rock crushers. According to the working principle can be split into single toggle and double toggle jaw rock crushers machine
A series of jaw stone crushers use compressive and squeezing force for reducing materials. This physical force is created by the two jaw plates, one of which is a movable plate and another is fixed, both of them are made of manganese. A V-shaped cavity, crushing chamber, is formed and the hydraulic discharge gap width of the crushing chamber, we can determine the suited feeding material size and discharging size, the width of top feeding is larger than that of bottom discharging
The mechanism of movement of rocks down the crusher chamber determines the capacity of jaw crushers. The movement can be visualised as a succession of wedges (jaw angles) that reduce the size of particles progressively by compression until the smaller particles pass through the crusher in a continuous procession. The capacity of a jaw crusher per unit time will therefore depend on the time taken for a particle to be crushed and dropped through each successive wedge until they are discharged through the bottom. The frequency of opening and closing of the jaws, therefore, exerts a significant action on capacity
Following the above concepts, several workers, such as Hersam . Gaudin , Taggart , Rose and English , Lynch , Broman , have attempted to establish mathematical models determining the capacity
Although it is not truly applicable to hard rocks, for soft rocks it is reasonably acceptable . This expression, therefore, is of limited use. The expressions derived by others are more appropriate and therefore are discussed and summarised here
Rose and English  determined the capacity of a jaw crusher by considering the time taken and the distance travelled by the particles between the two plates after being subjected to repeat crushing forces between the jaws. Therefore, dry particles wedged between level A and level B (Figure 4.4) would leave the crusher at the next reverse movement of the jaw. The maximum size of particle dropping out of the crusher (dMAX) will be determined by the maximum distance set at the bottom between the two plates (LMAX). The rate at which the crushed particles pass between the jaws would depend on the frequency of reversal of the moving jaw
The distance, h, between A and B is equal to the distance the particle would fall during half a cycle of the crusher eccentric, provided the cycle frequency allows sufficient time for the particle to do so. If ν is the number of cycles per minute, then the time for one complete cycle is [60/ν] seconds and the time for half a cycle is [60/2ν]. Thus, h, the greatest distance through which the fragments would fall freely during this period, will be
Then for a fragmented particle to fall a distance h in the crusher, the frequency must be less than that given by Equation (4.10). The distance h can be expressed in terms of LMIN and LMAX, provided the angle between the jaws, θ, is known. From Figure 4.4, it can be seen that
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