Medium-carbon low-alloy cast steel is also a widely used wear-resistant material. Due to its high hardness (≥45HRC) and appropriate toughness (≥15J/cm²), it can resist the cutting and repeated extrusion of materials. The fatigue peeling, thus showing good wear resistance.
(1) Jaw crusher is widely used in many fields such as mining, smelting, building, highway, railway, waterpower and chemical industry, crushing various materials with compressive strength not exceeding 320 MPa.
The gyratory crusher can, just like a jaw crusher, accept boulder sizes close to 1.5 m (for the largest equipment). – This crusher can handle products with a Mohs hardness that is not …
Thus, the crusher jaws must be hard and tough enough to crush rock and meet the impact action generated by the action of swing jaws respectively. If the jaws are hard, it will be efficient in crushing rock but it will be susceptible to fracture failure.
Hardness levels can range from that of concrete at 7000 psi to 50,000 psi for ores or other hard materials. The harder the material, the longer it may take to crush. In addition to production times the degree of hardness will influence the specific crusher for the operation. JAW CRUSHERS
e = 0.2 (halfway between dolomite and sandstone) A = 250/1000 x 500/1000. Wj = 0.5. Nj = 225. = 2800 x 0.25 x 0.5 x 0.5 x 225 x (1-0.2)/60 = 525 kg/hr = 13 TPD vs 300 to 420 …
Jaw crushers are used for coarse grinding brittle, medium-hard to hard materials up to a Mohs' hardness of approx. 8.5. Here reduction ratios of up to 1:100 are possible depending on the actual model concerned.
1. Eccentric shaft adopts heavy load and high strength design to ensure safe operation under the load of super hardness materials. 2. The movable jaw adopts box-type structure and is made of high strength materials. Both the strength and the stiffness are guaranteed. 3. The frame body is welded with all the high quality steel plates.
Mini-Jaw Crusher with a 2x2in (51x51mm) feed opening reduces materials up to 1in (25mm) with levels of hardness ranging from soft claystone to hard quartz. A ceramic jaw and cheek set is available to avoid iron contamination, while a tungsten carbide set can be selected for use with extra tough materials.
Results presented in Figure 3 confirmed this assumption; the limestone was characterized by the lowest specific energy consumption, while the hardness was the lowest …
Jaw crushers are designed to break all kinds of materials from soft limestone to the hardest basalt. There are 9 different types of primary and secondary jaw crushers from 150 x 100 mm (6"x 4") laboratory type to 1300 x 1100 mm (55"x43") mouth opening. Jaw crusher is specially designed for breaking even the most difficult to break materials.
Jaw crushers are one of the most commonly preferred crushers due to their ability to crush all kinds of materials of any hardness, as well as their low-cost operation and easy maintenance. …
hammer crusher vs jaw crusher | which is better (7 tips) | m&c. Jaw crusher can crush all kinds of soft and hard materials with compressive strength between 300-350Mpa, such as granite, quartzite, diabase, pebble, iron ore, etc. Hammer crusher is mainly used to crush ores with low hardness, and its compressive strength is generally lower than 200Mpa, such as limestone, …
It can be used for medium and fine crushing of those ores and rocks whose protodyakonov scale of hardness is no more than 5~16 such as iron ore, nonferrous metal … Blasthole drill SBSH …
Medium-carbon low-alloy cast steel is also a widely used wear-resistant material. Due to its high hardness (≥45HRC) and appropriate toughness (≥15J/cm²), it can resist the cutting and …
Hardness levels can range from that of concrete at 7000 psi to 50,000 psi for ores or other hard materials. The harder the material, the longer it may take to crush. In addition to production times the degree of hardness will …
Jaw crusher is used as primary crusher, it's reduction ratio is usually 6:1. It uses compressive force to break the material, this mechanical pressure is achieved by the two jaws of the crusher.
1. The main part of jaw crusher tilts during lifting process, the eccentric shaft is bent unilaterally. 2. The hardness of crushed materials exceeds the specified standard, which cause the shaft breaking. 3. The long time overload operation of jaw crusher makes eccentric shaft breaking. 4.
Rayco jaw crushers include PE, PEW, C6X and other series, which are designed to provide the highest productivity at the lowest operating cost. C6X series jaw crusher. When crushing high …
Jaw Crusher Capacity 1-1120t/h Output Size 10-350mm Jaw crusher is a compression style rock crusher, useful in crushing the medium-hard to very hard material into a smaller particle size at primary crushing stage in the crushing circuit. Applications mining, quarry, construction waste recycling, aggregate making, etc. Materials
These jaw crusher plates are deliveried to Indonesia If the hardness of the jaw plate is high, then the depth of the material pressed into the jaw plate will be small, which can prevent the surface from deformation, and reduce the cutting output caused by …
If your production demands below 1000 t/h, jaw crusher is the best choice and performs better when being applied underground. If you only want to crush more raw material with more than 1000t/h and no special demands on final …
They have a hardness of up to 62 HRC and are not corrosion-resistant. cast iron NiHard4 High alloy cast iron with very high resistance to wear and impact. The hardness is 550 - 700 HBW due to a high carbon content of 2.6 - 32%. ceramics
This angle depends on the size, hardness and frangibility of the material. It cannot be selected as too large or too small. The nip angle in primary crushers is lower than in secondary crushers. …
Characteristics such as hardness and surface friction de- termine the ease with which a particle is nipped andcrushed, Table 2 - Effect of throw on jaw crusher capacity (from Hersam, 1923) …
fixed and the moving jaws (the crushing chamber) tapers ver-tically downwards, thus gradually reducing the size of rock as is moves down through the crushing chamber. The Blake jaw crusher was originally designed by Eli Whit-ney Blake in 1857 [3]. The Blake jaw crushers are of two types: double toggle Blake and single toggle Blake as shown in Fig-
A better linearity was found between the wear rate and the ratio of the 0° Jaw 1 average 0° Jaw 2 average 45° Jaw 1 45° Jaw 2 75° Jaw 1 75° Jaw 2 90° Jaw 1 average 90° Jaw 2 average...
Results presented in Figure 3 confirmed this assumption; the limestone was characterized by the lowest specific energy consumption, while the hardness was the lowest (3 in the Mohs scale from...
1. Improve the hardness of the jaw plate The larger the size of the jaw crusher, the larger the size of the crushed material, and the greater the impact load the jaws bear. When selecting the material, the first consideration should be to increase the hardness of the jaw while ensuring the toughness of the jaw.
The main engine sheave and movable jaw work normally, but the crushing work stops Failure cause: tension spring breaks; fracture of pull rod; the bracket falls off or breaks. Solutions: replace the tension spring; replace the tie rod; reinstall or replace the bracket 3. The output is not up to factory standard Failure cause: