compare and contrast a gyratory crusher and a jaw crusher

Introduction

There are several types of crushers, all with different uses and capabilities. Here, we will be focusing on two common crushers used in mining: the gyratory crusher and the jaw crusher. Gyratory crushers are typically used for primary crushing, while jaw crushers are better suited for secondary crushing. Both types of crushers use compressive force to break down material. However, there are some key differences between the two: -Gyratory crushers rely on a mantle that rotates within a concave bowl. This design allows them to crush materials more efficiently than jaw crushers. -Jaw crushers have a fixed jaw and a swing jaw. The swing jaw is moved by a cam or pitman mechanism, which allows for greater crushing power. -Gyratory crushers are typically more expensive than jaw crushers. -Jaw crushers are more versatile, as they can be used in a variety of applications. So, which type of crusher is best for your operation? It really depends on your specific needs and material you’re working with.

What is a gyratory crusher?

A gyratory crusher is similar in basic concept to a jaw crusher, consisting of a concave surface and a conical head; both surfaces are typically lined with manganese steel surfaces. The inner cone has a slight circular movement, but does not rotate; the movement is generated by an eccentric arrangement. As with the jaw crusher, material travels downward between the two surfaces being progressively crushed until it is small enough to fall out through the gap between the two surfaces. A gyratory crusher is one of the main types of primary crushers in a mine or ore processing plant.

Gyratory crushers are designated in size either by the gape and mantle diameter or by the size of the receiving opening. Gyratory crushers can be used for primary or secondary crushing. The crushing action is caused by the closing of the gap between the mantle line (movable) mounted on the central vertical spindle and the concave liners (fixed) mounted on the main frame of the crusher. The gap is opened and closed by an eccentric on the bottom of the spindle that causes it to gyrate. The primary gyratory crushers operate in open circuit while Jaw Crushers operate in both open circuit and closed circuits.

What is a jaw crusher?

A jaw crusher is composed of a set of vertical jaws, one jaw being fixed and the other moving. The space at the bottom of the “V” shaped jaws narrows as it moves up the jaw to the top of the crusher where it opens out into a V. The rock enters the Jaw crusher from the top and is being crushed progressively smaller as it moves down until it exits at the bottom whereupon it is discharged onto a conveyor belt.

The gyratory crusher consists of a long conical head and a concave surface. The crushing chamber is lined with a hard wearing material such as manganese steel. The cone-shaped head approaches and recedes from an eccentrically-gyrating spindle, which is covered by a wear-resistant mantle. As the gap between the mantle and cone narrows, the rock is crushed by compression.

Comparison of the two crushers

In most cases, jaw crushers are used as primary crushers, while gyratory crushers are used as secondary crushers. Both jaw crushers and gyratory crushers have an oscillating motion caused by the opening and closing of the jaws (jaw crushers) or by the gyrating motion of the mantle (gyratory crushers). Jaw crushers have a relatively steep nip angle, which provides consistent crushing throughout the entire crushing chamber.

Gyratory crushers provide continuous crushing action and are used for both primary and secondary crushing of hard, tough materials. Their versatility makes them a valuable asset in many underground mining and quarrying applications.

There are several key differences between jaw crushers and gyratory crushers:

Jaw Crushers
– Gape (width of opening at the top of the jaw) is generally greater than that of a gyratory crusher
– Jaw plates are mounted on toggle seats at the bottom of the swing jaw
– Knives are mounted at an acute angle to the fixed jaw plate to effectively chopping material as it passes throught he crushing chamber
– Blake type: The movable jaw is pivoted at the bottom
– Dodge type: The movable jaw is pivoted at the top

Gyratory Crushers
– Entire Crushing chamber is lined with wear resisting material
– Gape (width of opening at the top of the jaw) is much greater than that of a jaw crusher
– The mantle is mounted on an eccentric sleeve, causing it to gyrate (spin) in a conical path
– As the rock moves through the crushing chamber, it is squeezed and crushed between the mantle and the concave
– Gap size can be adjusted by adding or removing shims between mantle and concave

Advantages and Disadvantages

There are several types of crushers that are used in mineral processing and aggregate applications. Jaw crushers and gyratory crushers are two common types of primary crushers that handle difficult, abrasive materials.

The main difference between jaw crushers and gyratory crushers is that jaw crushers have a smaller feed opening and can’t handle very large materials. Gyratory crushers have a much larger feed opening and can swallow much larger rocks.

Both jaw crushers and gyratory crushers are built to handle tough, abrasive materials but there are some important differences between the two types of equipment. Here’s a look at some of the key differences:

Jaw Crushers:

– Can handle smaller feed sizes (up to about 8 inches)
– Produce a more uniform product size
– Are typically less expensive than gyratory crushers
– Have slower speed ratios (about 6:1) compared to gyratory crushers

Gyratory Crushers:
– Handle larger feed sizes (up to about 10 inches)
– Produce a coarser product
– Are more expensive than jaw crushers
– Have higher speed ratios (up to about 8:1)

Difference between the two crushers

There are two main types of crushers: jaw crushers and gyratory crushers. Both of these crushers have similar processes for breaking down rocks into smaller pieces. However, there are some key differences between the two that you should be aware of.

Jaw crushers tend to be more versatile, with a wider range of applications. They can handle harder materials, such as granite and basalt, and are often used in construction projects. Jaw crushers use two plates that crush the rock by compressing it between them.

Gyratory crushers are better suited for more abrasive materials, such as limestone. They work by using a spindle that gyrates (rotates) within a cone-shaped chamber. This type of crusher is often used in mining operations.

Which crusher is better for certain materials

There are many different types of crushers, and some of them are better suited for crushing certain materials than others. In general, jaw crushers are more versatile and can handle a wider range of materials, but they are not as efficient or effective at very high speeds. Gyratory crushers are more powerful and can crush harder, tougher materials more effectively, but they require more maintenance and can be less versatile.

The Difference Between the Two Crushers

In order to help you understand the difference between a gyratory crusher and a jaw crusher, we have provided a detailed explanation below.

A gyratory crusher is typically used for primary crushing of large rocks or ores. The crushing process begins when the rock material is fed into the hopper at the top of the machine. The material is then crushed between a stationary inner cone and a rotating outer cone. As the material is crushed, it falls down through the narrowing space between the two cones.

A jaw crusher, on the other hand, is used for secondary crushing or reduction of smaller particle sizes. Jaw crushers are typically used for primary crushing, but can also be used for secondary crushing if necessary. The crushing process begins when the rock material is fed into the opening at the top of the machine. The jaws then close in on the material, crushing it until it is small enough to fall through the bottom opening.

Conclusion

There are several different types of crushers, all designed to achieve specific results. In this article, we’ve compared a gyratory crusher and a jaw crusher, both common pieces of industrial machinery used for crushing rocks and other materials. While both machines have their own unique benefits and drawbacks, the bottom line is that each one is best suited for different applications. If you’re still not sure which type of crusher is right for your needs, consult with an expert in the industry to get started.