Common questions

Why is the jaw crusher face corrugated?

Why is the jaw crusher face corrugated?

The faces of the crushing jaws are usually corrugated to concentrate the pressure on relatively small areas. On the sides of the frame are the two journal boxes (not shown in the figure) between which runs a heavy shaft, and this shaft carries at one end the wheel H which serves both as pulley and as a flywheel.

How do you adjust a jaw crusher?

JAW ADJUSTMENT The hex nut on the side of the frame adjusts the movable jaw gap. To INCREASE the particle size adjust the large hex nut on lower frame counter- clockwise to desired size. Re-tighten spring rods no more than hand tight.

Which jaw is fixed in jaw crusher?

All jaw crushers reduce large sized rocks, ore, or other material by a compression action. A fixed jaw, mounted in a V-shaped alignment, is the stationary breaking surface, while a movable, “swing” jaw exerts force on the feed material by pushing it against the stationary plate.

What is the working principle of jaw crusher?

The working principle of jaw crushers is based on the reciprocating movement of the movable jaw that compresses and crushes the rock or ore between itself and the fixed jaw, as the material enters the zone between the jaws.

How is jaw crusher capacity calculated?

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.

Which motor is preferred for jaw crushers?

2. Which motor is preferred for Jaw crushers? Explanation: Belt slip ring IM is preferred for the operation of Jaw crushers.

Which type jaw crusher does not have problem of choking?

Blake jaw crusher: In the Blake or jaw crusher the moveable jaw is pivoted at top. The greatest amount of motion is at the bottom which means it has the little tendency to choke.

Which type of jaw crusher has pivoting at the top?

Blake Crushers
Blake Crushers are Jaw Crushers with a movable jaw pivoted at the top, giving greatest movement to the smallest lumps. The throw of Blake jaw crushers is determined by the hardness of the ore as well as the size of the machine.

What is the difference between jaw crusher and impact crusher?

Jaw crushers are mainly used as primary crushers, it can crush hard material, such as granite, basalt. Impact crusher is usually used as a medium-fine hardness crusher, such as limestone, concrete, it has good crushing efficiency of some brittle material.

What is gape and set of jaw crusher?

For a smooth reciprocating action of the moving jaws, heavy flywheels are used in both types of crushers. These are commonly used as primary crushers in the mineral industry. The size of the feed opening is referred to as the gape. The opening at the discharge end of the jaws is referred to as the set.

What is the capacity of jaw crusher?

Capacities of a Gyratory Crushers (tons/hr)

Crusher Size Power max° hp
30-55 300 420
42-65 400
48-74 500
60-89 600 2500 tph at 6 in., 3600 at 9 in. max.

What is the difference between gyratory crusher and cone crusher?

The difference between the two is first the speed that the mantle travels while crushing the ore. In the Gyratory all the movement is in the bottom of the crusher mantle. This is due to the angle that the main shaft is on. The greater angle of the cone crusher puts the pivot point below the distributor plate.

How does Sandvik uj440i jaw plate work?

We have designed Sandvik UJ440i to suit a wide range of different applications. The jaw settings can be adjusted hydraulically and there is a choice of jaw plates to suit the particular needs of your operation. To ensure that the equipment works at optimum levels for longer periods, the impact zones have a rubber lining to reduce wear.

What makes a Sandvik jaw crusher so good?

Sandvik jaw crushers are built on well proven technology to offer you the highest possible reliability and performance, whilst prioritizing operator safety. From years of research and experience in the field, we understand the many challenges that you face.

What are the features of a jaw crusher?

These crushers feature a deep, symmetrical crushing chamber, easy settings adjustment, a large feed opening for its size, and an ideal nip angle that offers smooth material flow and high reduction efficiency.

Where can I find Sandvik rock processing solutions?

We are called Sandvik Rock Processing Solutions and you’ll find all our products within Stationary Crushing and Screening, Mobile Crushing and Screening and Attachment Tools (Breakers) on our new web site, www.rockprocessing.sandvik. Need to know more?

We have designed Sandvik UJ440i to suit a wide range of different applications. The jaw settings can be adjusted hydraulically and there is a choice of jaw plates to suit the particular needs of your operation. To ensure that the equipment works at optimum levels for longer periods, the impact zones have a rubber lining to reduce wear.

Sandvik jaw crushers are built on well proven technology to offer you the highest possible reliability and performance, whilst prioritizing operator safety. From years of research and experience in the field, we understand the many challenges that you face.

We are called Sandvik Rock Processing Solutions and you’ll find all our products within Stationary Crushing and Screening, Mobile Crushing and Screening and Attachment Tools (Breakers) on our new web site, www.rockprocessing.sandvik. Need to know more?

These crushers feature a deep, symmetrical crushing chamber, easy settings adjustment, a large feed opening for its size, and an ideal nip angle that offers smooth material flow and high reduction efficiency.

Author Image
Ruth Doyle