## estimate jaw crusher capacity

My friend Alex the SAG Mill Expert, says this equation you picked up doesnt look right.The numerator is calculating the volume of one swing of a jaw, times thedensity of material in the chamber, times the number of cycles perminute. This should give you the mass of material crushed per minute.

The example youve given is missing information needed to calculate theA term it doesnt tell you the height of the crushing chamber. The two measurements youve got are the top opening width and top openinglength; A should be the jaw throw (not given) times the crushing chamber height (also not given).

Tables hereincontain information that is typical of output from crushers discussed above. The capacities are based on the crusher receiving full, continuous feed of clean, dry, friable stone weighing 100 lb/cu ft.

These capacity tables show several significant differences between the two common types of primary crushers. A jaw crusher has a wider range of settingsgenerally, a maximum of two to three times the smallest setting. The tables also show that for a comparable maximum size of feed and setting, a gyratory crusher has a much greater capacity than a jaw crusher. Thegyratory crusher obtains this advantage only at the cost of greater power to drive the crusher.

The selection of an appropriate primary crusher for a given use has to be based on a consideration of several factors. These are not limited to the design features of the crusher. If the feed is blasted rock from a quarry, the size and method of handling the feed influence crusher selection. For instance, a power shovel is limited by the dimensions of the dipper in the maximum size of rock it can handle well. It may be that the bucket of a 1- yd shovel would be too small to load the maximum size rock allowed in a jaw crusher with a 42-in. opening.

If a 60-in. gyratory crusher is to process material from a quarry where a shovel loads the raw material, the shovel would probably have to have a dipper capacity of at least 5 cu yd to be compatible. It may be more economical to change the blasting pattern to produce larger rock that can be handled by a larger loader-hauler combination and still fit in the primary crusher. Generally, a large reduction ratio will be required of the primary crusher.

If gravel has relatively small maximum particle sizes, a large feed opening is not needed. It may be more economical to feed all of the pit-run material into the primary crusher rather than to remove the part that is already smaller than the crusher setting. That calls for a crusher with a higher capacity. There are many feasible solutions to the crusher selection problem, so the aggregate producer must select crushers with total operations and economics in mind.The selection of reduction crushers is also a complex problem.

The economic selection of any particular crusher depends on the ability of the crusher to handle the maximum size of feed, reducing this at the highest possible reduction ratio and least cost for the original installation, maintenance, and power. For any particular aggregate production plant, it is advisable to make preliminary determinations of the types of crushers needed. If most of the feed is coarse and stage crushing is required, primary crushers that meet the requirements of reduction and economy and have straight crushing surfaces may be most economical.

Where only a very small percentage of the feed approaches the size of the feed opening of the crusher,nonchoking crushing surfaces in a high capacity crusher may be advisable for the sake of economy. If the plant requires several stages, and several different types of crushers could be used for each stage, the costs of each feasible combination must be analyzed to find the crusher plant with the least total cost.

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We believe our people make it happen! We provide a collaborative, inclusive and flexible work environment, along with competitive compensation and comprehensive wellness & benefits programs. Learn more what it's like to work for Atlas Copco!

Our products help customers to achieve sustainable productivity in a wide range of markets, including general engineering, manufacturing and process industries, construction, automotive, electronics, oil and gas, and much more.

Atlas Copco in the United States handles the sales and service of industrial gas and air compressors, dryers and filters, compressor parts and service, and vacuum pumps; construction and demolition tools including mobile compressors, pumps, light towers and generators and handheld tools; industrial electric, pneumatic, cordless transducerized assembly tools, alongside an extensive range of pneumatic grinders, sanders, drills, and chipping hammers and riveting systems. Atlas Copco customers are supported by a nationwide sales, distribution, and service network, to ensure that products are running at maximum efficiency and minimum downtime at our customers' sites. The Atlas Copco Group is a world-leading provider of sustainable productivity solutions. The Group serves customers in more than 180 countries with products and services focused on productivity, energy efficiency, safety and ergonomics.

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