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The 159 indicates a 548 crusher size with 1″ eccentric throw. With 1-in. eccentric throw, the motor hp allowed on the crusher is a maximum of 125. However, since only 90.3 hp is required for this average material, a 100-hp motor is sufficient. ... F the feed size or diameter in microns of the square hole which 80% of the feed passes, P the ...
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As a rule, Jaw Crushers have a 6:1 or 8:1 ratio for crushing material. Still using the 32 x 54 Jaw Crusher example, the top size of the feed entering the crushing chamber has to follow the F80 rule that 80% of the top size feed material is smaller than the gape opening.
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The average input size for a secondary crusher ranges from 13" to 4" during this stage. Secondary crushing is especially important for making graded material that is going on to be used on government projects. ... Non-Clog Hammermills feature a moveable breaker plate and are perfect for wet, sticky, friable materials with large feed size ...
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F80 feed size; Rock's compressive strength; Required reduction ratio; A jaw crusher size is obtained by looking at its feed opening (gape) and length. As an example, a monster 7959 of 79″ x 59″ …
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Maximum feed size (mm) Typical maximum product size (mm) Typical capacities (t/h) Gyratory crusher: Primary: 1500: 200–300: 1200-over 5000: Jaw crusher: Primary: 1400: 200–300: ... When the run of mine product is conveyed directly from the mine to the crusher, the feed to the primary crusher passes under a magnet to remove tramp steel ...
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For example, a 40- x 51-in. jaw crusher calls for a maximum feed size of 32-in., a CSS range of 4- to 8-in.; and produces a desired product size that fits within that CSS range. While various crusher sizes have similar CSS range spans, some crushers operate in a bit tighter CSS range than others. The key is looking at the desired …
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The small diameter feed distributor and the wide throat opening at the top of the liners enable the Standard Cone crusher to accommodate the larger feed produced by the Primary crusher. Feed opening and product size ranges for the various models of the Standard Cone crusher are as follows: a) Maximum Feed Opening — 625MM (25 In.)
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size of crusher. Unfortunately not many studies have been done to establish their values under a range of actual operating conditions. In practice it is often necessary to estimate them from measured ... Size Feed opening Max rpm of flywheel Motor kW Open-side setting mm 25 32 38 51 63 76 102 127 152 10×20 300 15 12.7 15.4 18.2 23 31
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QJ341 mobile jaw crusher is the ideal solution for a wide range of applications. Equipped with a C12 jaw crusher, a powerful and fuel-efficient engine, it is designed to tackle the most difficult operations. ... Max. feed size 750 mm (30 in.) Capacity Up to 700 mtph (770 stph) UJ443E Jaw crusher. Tracked jaw crushers. QJ341+ Jaw crusher ...
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Size reduction in an impact crusher relies on energy being conveyed into the rock from the rotor, and it begins with the feed. The initial impact is responsible for more than 60% of the crushing action, with the remainder being made up of impact against an adjustable breaker bar and a small amount of inter-particle collision.
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The feed size, which often varies from small, fine pebbles to larger rocks up to 80 centimeters in diameter, greatly determines the crusher's throughput. Matching the feed size to the jaw opening …
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Closed-Side Setting Effect on Feed Size. Measurement of the crusher's closed side setting (CSS) varies depending on the jaw profile that is being used and has an impact on the crusher's capacity and product gradation. Diagram of closed-side setting effect on feed size [image: (135-5-13)]
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HOW SIZES ARE DESIGNATED The numerical size designation of Gyratory crushers represents the feed opening and the maximum diameter of the crushing head. For example, a 60-109 …
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GP cone crusher can be used in pulse fed applications as the head spin is minimized.) • Circulation is needed when producing high quality products. 2. Check the feed size and gradation: • Oversize feed material decreases capacity and can cause unnecessary loads to the crusher. • Too small feed size for the chamber increases wearing at the
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If the ore feed to any gyratory or jaw crusher consisted entirely of large cubes or spheres of a size that would just barely enter the crushing chamber, the crusher could not be expected to produce anything like its normal rated capacity because the upper part of the crusher could not shatter the large pieces ... Feed Rock …
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• Do not exceed the maximum feed size. Attempting to crush oversize feed material wastes time and reduc-es crusher capacity. The maximum feed size should be less than 80 – 85% of the nominal feed opening. This size distribution helps prevent blockage at the spider opening and allows a well-
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The maximum feed size for a jaw crusher can reach 1,200 mm. They perform better than gyratory crushers on high-humidity, high-viscosity materials like clay, …
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JAW CRUSHER QJ341+ JAW CRUSHER KEY SPECIFICATIONS DATA Equipment Single toggle C12 jaw crusher Feed opening 1.20 m x 750 mm / 47" x 29" Maximum feed size 650 mm³ / 25.6 inch³ Engine C9.3B Stage 5 / T4F 280 kW / 375 hp C9 T3 261 kW / 350 hp Transport dimensions 14.72 m / 48' 3" (l) 2.79 m / 9' 2" (w) 3.79 m / 12' 5" (h)
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Maximum Feed Size: The size of the largest particles in the feed materials determines the necessary inlet opening and the appropriate crusher type. Primarily, the …
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When larger feed sizes require up to a 6:1 ratio of reduction to achieve the final product, a Triple Roll Crusher should be chosen due to the inherent design, which allows the larger feed sizes to be readily …
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The capacity range of primary crushers varies depending on the type of crusher and the size and hardness of the material being crushed. Generally, primary crushers have a capacity range of between 1,000 and 8,000 tons per hour. ... It is also important to ensure that the crushers are operated within their designed capacity and …
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Here above is shown a family of curves for primary crushing of unscreened feed, such as the average quarry-run material in which the undersize (minus crusher …
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The Single Roll Crusher, with its 6:1 ratio of reduction, is ideal for reducing large feed lumps to a medium product size while producing a considerably lower percentage of fines.
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A Jaw Crusher is sized so that the maximum feed size is 80% of the gape and width openings. The gape is the measurement between the two jaw dies, while the width is the measurement between the two side plates. For example, if the maximum feed size is 29"x49", the crusher gape would be 32" and the width would be 54".
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The inlet opening defines the overall feed-size. As a rule of thumb it is recommended that the maximum feed size is 80% of the inlet opening width. A chain curtain prevents rocks being ricocheting back ensuring operator safety. ... Impact crusher hammers, wear liners, and impact plates are consumables and need to be replaced frequently. ...
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• Flow of the feed should be stable and con-tinuous. • Closed circuit crushing (where the crusher product goes to a screen and the oversize material returns to the crusher) is needed when producing high quality products. 2. Check the feed size and gradation: • Oversize feed material decreases capacity and can cause abnormal wear of the liners
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RETSCH jaw crushers are powerful forced-feed crushers, available in 7 sizes. They are used for sample crushing on a laboratory scale, but, depending on the model, can also be integrated into existing process …
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Therefore, it should be possible to adjust the opening feed size of the primary crusher, implying that the secondary crusher should have a relatively large capacity. This will allow maximisation of coarse RA production (e.g., the feed size of the primary crusher should be set to reduce material to the largest size that will fit the secondary ...
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During the primary crushing operation, boulder size feeds from 20 to 100 in. are reduced to secondary crusher sizes of 1 to 20 in. or mill feed size of .5 to 3 in. Many different types of crushers exist with varying designs and crusher processes.
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The desired grizzly opening for an underground jaw crusher is equal to 80% of the gape of the crusher. Source: Jack de la Vergne; The maximum feed size for a jaw crusher should be about 85% of the gape. Source: Arthur Taggart; The combination of a jaw crusher and a scalping grizzly will have 15% more capacity than a stand-alone jaw …
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