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On June 14, 2003, a maintenance repair foreman, age 25, was fatally injured while changing liner plates in a jaw crusher. Salyards was inside the crusher positioning a wedge bar to secure the upper liner plate when the liner dislodged, striking him. "A policy should be implemented requiring risk assessments to be conducted prior to performing maintenance or repair tasks." Incident
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Therefore, large jaw crusher tooth plate is usually used ZGMn13Cr2 modified high manganese steel. For the jaw plate material should be selected high hardness materials to resist extrusion, micro-chisel failure, and also have sufficient toughness to resist the chipping impact fatigue failure. At the same time from the jaw plate structure to improve the material and the jaw plate to reduce the
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A jaw crusher robustly constructed single-toggle type with one fixed jaw plate and one moving jaw plate. Designed for the smaller laboratory, or use by prospectors. It is capable of quickly crushing materials up to 85% of the jaw opening (125 mm x 100 mm). It is robust and long wearing and made of parts and materials easily serviced in a remote area. Toggle adjustment is by means of jacking screw.
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For impact crusher with two-stage impact plate, we can set the first impact plate according to the incidence angel d=0 and the size of feed opening. Turn the blow bar about 25° from the unloading point, and then considering the incidence angel as 0 and the minimum size of discharge opening and the corresponding angle, we can determine the position of the second-stage impact plate.
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In operation, the movable jaw means 14 is manually supported in jaw open position, such as is shown by solid lines (FIG. 2). Selected quantities of ore samples 48 are inserted into the hopper 46 and manually moved toward the movable jaw to fall by gravity into the spacing between the jaw and anvil. Manual downward pressure on the handle 44 crushes the ore samples between the jaw 38 and anvil
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For impact crusher with two-stage impact plate, we can set the first impact plate according to the incidence angel d=0 and the size of feed opening. Turn the blow bar about 25° from the unloading point, and then considering the incidence angel as 0 and the minimum size of discharge opening and the corresponding angle, we can determine the position of the second-stage impact plate.
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High performance: in rock crushing and material recycling.; Higher profitability than mobile crushers.; Minimum maintenance: 50 hour greasing intervals.; 80% less consumables parts than conventional crusher buckets.No Toggles, No Springs, etc. High inertia power train: 2 engines that give the necessary power to start full and in closed position.; Isolating jaw movement (PATENTED): ensures the
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Cheek plates The positioning of these plates on the jaw crusher justifies the name "Cheek Plates". They are made or coated with high strength manganese steel for durability purpose. As it can be seen in the assembly drawing, the design is done in such a way as to act as additional lock to key down the fixed jaw to its stock. Figure 5 shows the left and right cheeks of this crusher. Figure
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Toggle plates for these jaw crushers are of three-piece construction, consisting of an iron center section (2) to which are bolted two replaceable bronze ends (1 and 3). Toggle seats are carefully machined and equipped with protecting shields which deflect dust and dirt. Toggle plates are held in position between swing jaw, and pitman and frame by spring-equipped tension rods which
Get PriceCheek plates The positioning of these plates on the jaw crusher justifies the name "Cheek Plates". They are made or coated with high strength manganese steel for durability purpose. As it can be seen in the assembly drawing, the design is done in such a way as to act as additional lock to key down the fixed jaw to its stock. Figure 5 shows the left and right cheeks of this crusher
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In addition, it is necessary to adjust the relative position of the fixed jaw plate and the movable jaw plate to ensure that the top of the tooth is fixed to the root of the tooth, and to prevent the displacement, so as to ensure the smooth production process of the equipment; Reason five: The voltage at the work site is too low. For the jaw crusher, the production process relies on the
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The primary gyratory crusher offers high capacity thanks to its generously dimensioned circular discharge opening (which provides a much larger area than that of the jaw crusher) and the continuous operation principle (while the reciprocating motion of the jaw crusher produces a batch crushing action). The gyratory crusher has no rival in large plants with capacities starting from 1200 t/h and
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2. Factors affecting jaw crusher capacity The mathematical model of the working process of the crusher should take into account many factors. Operating experience and investigations have shown that the performance of jaw crushers significantly depends on their design and the motion law of its function element – the moving jaw [5], [6].
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Its Patented technology, applies a high inertia power train and a circular jaw movement, in addition to the new and simple antiestagnation plate. Furthermore the granulometry adjustment system is simple and fast. The crushing jaws are placed in a crossed position, which together with its circular motion, gives the Xcentric Crusher the faculty of grinding wet material without compacting effect.
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Generally, the size of the discharge material can be controlled by adjusting the crusher plate and wedge block. The adjusting plate is generally located behind the toggle seat inside the adjusting seat. When the discharge port needs to be adjusted, the number of plates can be increased or decreased, and the total thickness of plates can be changed, so that the front and rear position
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that the jaw plates are held firmly in position. These are also a wear part that can be replaced when worn down. 14 - Crusher Wear Parts Reference Guide Crusher Wear Parts Reference Guide - 15 JAW CRUSHER TERMINOLOGY JAW PLATE PROFILES There are a few key points that you need to consider when selecting the correct liners for an application: 1. Feed Material Type 2. Feed Material
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The primary gyratory crusher offers high capacity thanks to its generously dimensioned circular discharge opening (which provides a much larger area than that of the jaw crusher) and the continuous operation principle (while the reciprocating motion of the jaw crusher produces a batch crushing action). The gyratory crusher has capacities starting from 1200 to above 5000 t/h. To have a feed
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While the jaw crusher is running, the true heart of the jaw crusher and its components is the brackets, the pitman and the sheaves. These are the Jaw Crusher Components and components that produce the breaking action and provide the energy needed to crush the ore. Let's look at the chain of events along a broken cycle and see how they fit together. The first part of the crusher
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The jaw crusher mainly uses the striking force of the movable jaw and the impacting force of the fixed jaw to achieve the crushing purpose, during the process, the jaw plate of the jaw crusher is plays an important role. The most common malfunction of the jaw plate is breaking. After eliminating the aspect that the jaw plate manufacturing technology of the jaw crusher manufacturing company is
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– Crusher setting when the discharge opening of the jaw crusher is at closest position referred to as CSS. • Open side setting – Crusher setting when the discharge opening is at its furthest open position. • Reduction ratio – Ratio relating to the top size of the feed to the CSS of the crusher. 3/8/2016 4 Jaw Crusher Crushing chamber Space between the stationary and the moving jaw
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