Sample preparation of aggregates, coal, ores and coke used in construction or geotechnical procedures requires reducing particle sizes. Most of these materials are brittle, tough and hard. Therefore, jaw crushers are used to crush these into smaller sizes.
Jaw crushers work on a very straightforward principle. Every jaw crusher comes with 2 hard-faced heavy plates known as jaws. These are used to crush large particles placed between them. The top jaw uses an elliptical motion to crush the sample on the stationary jaw.
During a simple crushing operation, the gap between the two plates opens up and the particle is placed inside. The jaws close and crush it to a smaller size. The pieces are crushed until they are small enough to fall through the bottom opening. The jaws face each other at a small vertical angle so as the particles are continuously crushed, they move to the bottom and fall through the opening.
You can regulate the final sample size by adjusting the distance found between the two jaws. Remember, the final size can vary depending on the properties of the original sample.
The Benefits Of Using A Jaw Rock Crusher
Jaw crushers are ideal equipment for primary crushing needs of hard and brittle materials effectively and efficient. Some of the benefits of using a jaw crusher include the following.
• They allow crushing of large samples into smaller particles for use in various industries.
• Jaw crushers come with plates made out of various materials to allow crushing of different types of materials.
• Depending on the output you need, you can always find a jaw crusher large enough to guarantee optimum output.
• Compared to other crushing equipment, jaw crushers are fast and efficient especially in the primary stages.
• You can adjust the space found between the jaws to regulate the final sample size and accommodate any wear and tear.
• They come with reversible plates thereby extending service life between the replacements.
• Jaw crushers have proven technology that has consistently offered reliable and repeatable results.
• Jaw crushers are easy to use, safe and easy to maintain.
Are There Any Disadvantages Of A Jaw Crusher?
Yes, jaw crushers also have a few disadvantages compared to other equipment. These include the following.
• The opposing jaw plates found on jaw crushers are less efficient when it comes to crushing tough, ductile or soft materials compared to the hard and brittle ones. For these materials, you need different types of equipment altogether.
• The final sizes produced from a jaw crusher are coarser than those produced from hammer mills, pulverizers and other types of crushers used in the industry.
• Also, the final size is hard to control compared to other types of crushers.
Choosing The Right Stone Jaw Crusher
Now that you know the advantages, disadvantages and operational principles of jaw crushers, you need to choose the right one. Here, you need to consider the volume, particle size and the properties of the bulk material as well as the final material needs before choosing a specific jaw crusher for your needs.