Ratio Used Primary Jaw Crusher

This is a type of crusher that is widely used in the primary and secondary crushing processes. ... The ratio of the gape width to the near side jaw opening. This ratio may vary from 1/3 to 1/9, but is generally 1/3 for and 1/4 for secondary ... while double-toggle jaw crushers are used mostly for crushing very hard and highly abrasive materials.

From Allis-Chalmers' Superior Primary and Secondary Crushers. ° Actual required depends on stone hardness, reduction ratio, and so on. 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.

Jaw Crushers are primary crushers used in the first stage of the crushing process. They feature a V-shaped cavity (called the crushing chamber) that is formed by a moving piece of steel and a stationary piece of steel (called jaw dies). ... Jaw Crushers typically have a reduction ratio of 6:1, which means a 30" feed will be reduced down to 5 ...

With their high crushing capacity for harder materials, jaw crushers are an affordable alternative to most known crushers, such as primary crushers. Thanks to their wear-resistant material and sturdy design, the jaws readily crush rocks in one stroke. As such, our jaw crushers are an affordable feature for any rock-crushing plant.

Primary crushers can handle large feed lump sizes and typically include Jaw Crushers and Gyratory Crushers, but Impact Crushers may also be used as primary crushers if the material is easily crushed and not abrasive. ...

On a larger crusher you can typically only crush down to 2-1/2" to 3" but the pieces fed can be approximately 15" to 24". On the small jaw crushers we sell, customers are experiencing a greater product reduction by only using our jaw crusher as both a primary and secondary crusher. A 1" minus product can be achieved this way. Cone ...

Cone crushers are generally found in use for secondary, tertiary, and downstream crushing services, with jaw crushers and gyratory crushers used for primary crushing operations. Jaw, Cone and Gyratory Crushers. In some cases, the …

be accepted into the crusher is approximately 80% of the gape. Jaw crushers are operated to produce a size reduction ratio between 4:1 and 9:1. Gyratory crushers can produce size reduction ratios over a somewhat larger range of 3:1 to 10:1. The primary operating variable available on a crusher is the set and on jaw and gyratory the open-

Jaw Crusher Reduction Ratio. Either an 8-to-1 or 6-to-1 ratio should be the target reduction ratio for maximum jaw crusher efficiency. This setting typically provides an ideal P80 factor—when 80% of crushed material produced by primary crushing will pass screening after processing.

Essa JC3000 Jaw Crusher – a heavy-duty primary jaw crusher used in sample preparation and plant applications; ... It has a good reduction ratio with 6 mm product size and 250 kg/hr throughput. A single toggle and easy jaw gap adjustment add to its uncomplicated operation and control features.

What is the capacity of a typical primary jaw crusher? The capacity of a primary jaw crusher depends on the machine's size and the material being crushed. Typical capacities range from a few hundred tons per hour to more than 10,000 tons per hour. Types of Primary Jaw Crushers. There are two main types of primary jaw crushers: single toggle ...

The primary function of a jaw crusher is to reduce the size of the material to a specific size range, commonly referred to as the reduction ratio. The reduction ratio is a critical factor in determining the efficiency of a jaw crusher, …

The first considerations are at what point in the process the crusher will be used, the type of material, and the output required. Use the table below as a guide. Primary Gyratory Crusher B G G Primary Jaw Crusher G B G Primary HSI Impact Crushers P P B Secondary Cone ... Capacity and reduction ratio can decrease

primary jaw crusher. The heartbeat of the machine is a robust hydrostatically driven jaw chamber which provides high capacity with large reduction ratios. The jaw chamber configuration can be set up specifically for quarrying applications or processing construction demolition debris using the hydraulic release chamber option.

Either an 8-to-1 or 6-to-1 ratio should be the target reduction ratio for maximum jaw crusher efficiency. This setting typically provides an ideal P80 factor—when 80% of crushed material produced by primary crushing will pass screening …

Primary jaw crushers typically operate in open circuit under dry conditions. Depending on the size reduction required, the primary jaw crushers are followed by secondary and tertiary crushing. ... The ore had to be crushed in a C-63 type jaw crusher 630 × 440. At a reduction ratio of 4, 18% of the ore was below the maximum size required ...

A well-proven single toggle jaw crusher, the Essa® JC3000 is a heavy-duty, low-maintenance machine. It readily accepts soft to very hard ore, drill core, rock and similar particulate up to 170 mm, i.e. 85% of its jaw opening. Throughput is generally 3,000 kg per hour and the machine has a good reduction ratio – with 25 mm product

RETSCH Jaw Crushers are primarily used in laboratories and pilot plants under rough conditions but are also suitable for on-line qual-ity control of raw materials. The jaw crushers are …

PE Series jaw crushers are most commonly used as the primary crushers for making the first step of size reduction, and used to prepare the feed for the secondary crushers in a crushing and screening process. The crushers can crush all kinds of the hardest ores and rocks in the worst environment. The jaw crushers have higher strength.

When the feed material is not hard or big a secondary crusher can be used without a a primary jaw crusher. This is often the case in concrete recycling, limestone, shale, or sand & gravel applications. ... Crusher Type Reduction …

Jaw Crushers typically have a reduction ratio of 6:1, which means a 30" feed will be reduced down to 5" at the smallest size. The product size can be adjusted by opening or closing the gap between the jaw dies at the …

4. Evaluating Crusher Types. Jaw crusher: suitable for primary crushing, especially of hard and abrasive materials. They produce coarse products and are suitable for a wide range of applications. Cone Crushers: Suitable for secondary, tertiary and quaternary crushing with good crushing ratios. Ideal for producing a well-shaped cubic end product.

They provide a reduction ratio of 3:1 to 6:1. Jaw Crushers feature a moving piece of steel (called the pitman) and a stationary piece of steel that form a V-shaped chamber. Material that enters the chamber is crushed to size …

Jaw Crushers 5 Jaw Crushers BB 50, BB 100, BB 200 and BB 300 Jaw crushers are always at the very front of the sample preparation chain, pre-crushing all hard and brittle materials. RETSCH Jaw Crushers are primarily used in laboratories and pilot plants under rough conditions but are also suitable for on-line qual-ity control of raw materials ...

A robust and well-proven crusher built for high capacity, the Essa® JC5000 can be used in primary crushing applications and is able to take a large size of input product with its 500 mm x 300 mm jaw opening. A 30 mm product size, which combines with a speedy throughput of 15,000 kg per hour, makes the JC5000 a highly desirable sturdy crusher.

Primary crushers can handle large feed lump sizes and typically include Jaw Crushers and Gyratory Crushers, but Impact Crushers may also be used as primary crushers if the material is easily crushed and not abrasive. ... These impact-type crushers offer reduction ratios of 8:1 to 10:1 in secondary crushing applications. They are ideal …

the crusher and scalp out fi nes. Primary gyratory crushers – ideally suited to all high-capacity primary hard rock crushing applications. Jaw crushers – we have more installed jaw crushers than anyone in the world. The lead-ing choice due to their high reduction ratio and heavy duty design. Cone crushers – capacities available to suit all

For a given ratio-of-reduction, the type of crusher with a flared crushing chamber will usually deliver a cleaner product than any of the older types; conversely, more reduction …

Jaw crushers are used as the primary crushers in the first stage of a crushing process for the breaking of large-sized rocks, while jaw crushers with smaller mouth openings are used to break smaller ores into finer sizes. ... Jaw crushers have a material production capacity of up to 1,000 t/h depending on the outlet, and the reduction ratio is ...

This is like saying that, as the Crusher Reduction Ratio in any given crusher is increased, the % of fines in the product will increase, even though the discharge setting remains unchanged. Both of these statements are true, but the degree to which the product is affected depends to a much greater extent upon the ratio-of-volume-reduction in ...