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# How to determine jaw crusher tonnes per hour using feed opening and discharge gap of 130mm

time the discharge from the gyratory is continuous instead of intermittent as jaw crusher. Less maintenance and power requirement is small compared with jaw crusher. And the capacity is more than jaw crusher 4500 ton/hr. The capacity varies with 1. Jaw setting 2. The impact strength of the feed. 3. Speed of the gyratory machine

• Crusher Efficiency Calculations

Sep 15, 2014 Sep 15, 2014 It must be at least 36 in. wide for an 18 x 36 jaw crusher. So a 4-ft by 8-ft screen would be acceptable. The 1-in. screen is a second deck for the 38 tph from the jaw crusher, so the deck correction factor is 0.90 and that screen capacity is 2.1 x 0.9 = 1.89 tph/sq ft. The screen area needed under the jaw crusher is 38/1.89 = 20.1 sq ft

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• Jaw Crushers | McLanahan

Tons per hour rate needing to be crushed; Desired size of discharge material needed; Operating hours per day. F100 is the maximum gape opening on a Jaw Crusher. F80 is the feed size to the Jaw Crusher, calculated by taking 80 times the gape opening divided by 100. P80 is the percent passing the closed side setting in tph

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• Jaw Crusher - an overview | ScienceDirect Topics

The capacity of a jaw crusher is given by the amount of crushed material passing the discharge opening per unit time. This is dependent on the area of the discharge opening, the properties of the rock, moisture, crusher throw, speed, nip angle, method of feeding and the amount of size reduction

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• how to determine the capacity of a crusher

Roll Crushers are compression type crushers, and were once widely used in mining. ... The gap between the rolls is set to the size of product desired, with the realization that ... Photo of a small scale roll crusher, with a capacity if 1/2 ton/hour. Read more

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• Crushing 101 » Masaba Manufacturing

Oct 04, 2019 Oct 04, 2019 The width of the jaw determines capacity. Jaw crusher output gradation is controlled by the closed side setting. This is the adjustable opening at the bottom of the jaw. With a 24” top size limit and an 8:1 reduction ration, the closed side setting should be no smaller than 3”. A well designed jaw should be 80 to 85 percent efficient

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• Crushing Circuit C Selection And Sizing Of Crushers

Mar 30, manual crusher selection 1. determine the maximum feed size. 2. the minimum feed size to the crusher, must always be less than 25mm (1”), in either open or closed circuit. 3. determine the total tonnage throughput of the crusher: a) open circuit – refer to capacity tables on previous pages, detailing maximum and minimum recommended

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• What Determines The Screen Size In Grinding In A Mill

Below is a simple test to determine liberation size for a commercially-viable recovery of values. In processing our local ore with the MBMM jaw crusher hammer mill and shaker table we get a p80 of 30-50 mesh 80 passing 30 or 50 mesh sieve screen depending upon the slot size in the hammer mill screen

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• 4. Size reduction problems Questions _2020 batch.docx

Calculate the size of the product using Rittingers law. The Rittingers law constant is 1.357 kJ-cm/ton. (Answer: D sb = 1.0726 mm) 5. A material is crushed in a Jaw crusher and the average size of particle is reduced from 50 mm to 10 mm, consuming energy at the rate of 13 kw-sec/kg

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• Rolls Crusher for Sale - 911Metallurgist

The feed-material, which has passed a 0.75″ screen-opening, is thus reduced in a single operation to a size at which 94 per cent, passes 100-mesh screen, at the rate of 60 tons per hour. This use of rolls carries the principle of choke-crushing to so extreme a limit as to involve practically a new function

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• Lecture 3 Civil Engineering Practice Stone Aggregates and

Example • A jaw crusher with a closed setting of 3 in produces 50 tons per hour of crushed stone. Determine the amount of stone produced in tons per hour within the following size range: in excess of 2 in; between 2 and 1 in; between 1 and 1/4 in. • From Figure 1, the amount retained on a 2 -in screen is 42% of 50, which is 21 tons per hr

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• Evaluation of blast fragmentation effects on jaw crusher

Sep 21, 2021 Sep 21, 2021 The discharge opening of a jaw crusher is commonly listed in terms of the closed side set. Closed side sets can range from 19 mm (0.75 in) up to 711 mm (28 in). Crusher sets can be changed on-site, either manually or automatically, usually in order to compensate for jaw liner wear (King 2001 )

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• Crusher Calculation Theoretical Capacity In Roll Crusher

Theoretical capacity of jaw crusher roll crusher mineral processing metallurgy how to calculate the roll crusher capacity using a formula the theoretical capacity of crushing rolls is arrived at simply by calculating the volume of the ribbon whose cross section is the area of the discharge opening and whose length is the peripheral speed of the

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• (PDF) Crushing and Screening Handbook | Kevin

The crushing process takes place between a ixed and a moving jaw. The moving jaw dies CONE AND GYRATORY are mounted on a pitman that has a recipro- CRUSHERS cating motion. The jaw dies must be replaced regularly due to wear. Both cone and gyratory crushers have an oscil- lating shaft

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