If you are a rock, sand, gravel or mineral processing industry veteran, you know that there are several different types and styles of crushing equipment. The exact crushers you need—jaw, cone, impact or gyratory—depend on the jobsite, the product you’re making, and how much you need to produce.
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An individual crusher’s construction and capabilities also dictate where in your processing operations it will fit. That is, you may have multiple types of crushers situated in primary, secondary and tertiary stations in a circuit format to perform the necessary material reduction work. Each type of crusher brings unique strengths and benefits to the process.
This article focuses on compression-style jaw crushers, which are most often employed in the primary stage of a crushing circuit. It’s important to know that cone crushers are sometimes used in their place, and we’ll also talk a little bit about when cone crushers may be preferred over jaw crushers.
Jaw crushers are sometimes also referred to as “rock breakers,” which speaks to their brute force. They are almost exclusively used as primary crushers because they excel at breaking up some of the largest and hardest materials into more manageable pieces for further reduction by different crushing equipment. Jaw crushers have a multitude of advantages, including:
Due to their smaller physical size, jaw crushers are also ideal for tight spaces, such as underground mining and mobile crushing applications, where some other primary crushing solutions do not fit.
Jaw crushers have been around for nearly 200 years and are one of the most “historic” crusher types. Because of this, jaw crushers have undergone many technological advances through the years to become more durable and to improve their movement to reduce choking and increase operational speed. These design tweaks over time have perfected a machine that’s simple enough in its working principle that it may never become obsolete.
Today, two main jaw crusher configurations can be seen from the major equipment manufacturers. They differ based on how the swing jaw moves, though their output is similar.
Double toggle movement jaw crushers like the Blake style (named for the inventor of the first successful mechanical jaw crusher, Eli Whitney Blake) have long been the standard for crushing hard and abrasive rocks, as well as sticky feeds. These jaw crushers have high energy-efficiency. The overhead pivot design further reduces wear and tear on crusher faces versus the Blake style.
More compact than double toggle designs, the single toggle movement jaw crusher was at one time unable to accept such large feed sizes, though it can typically run faster. Technological innovations solved the feed size issue, and now these machines are popular for how quickly they work. They do experience more wear and tear than the double toggle style crushers, but wear parts are widely available and economical.
Different jaw crusher designs will operate slightly differently, but how they work is similar across the board. All jaw crushers reduce large sized rocks ore, or other materials 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.
The space at the bottom of the V-aligned jaw plates is the output gap that dictates the size of the crushed product from the jaw crusher. The rock remains in the jaws until it is small enough to pass through the gap.
The video below created by SANDVIK illustrates how jaw crushers operate.
While jaw crushers may always be a smart primary crusher stage choice for many operations, it’s true that newer cone crushers are increasingly taking their place due to versatility. Cone crushers and jaw crushers both work by compression, reducing materials by squeezing them until they break apart.
The benefit that cone crushers offer over jaw crushers is their ability to output a more cubical product similar to impact crushers. Cone crushers have traditionally been used as secondary and sometimes tertiary crushing stations.
As far as answering whether one type of crusher is better than another, context is key. Everything comes down to what your production needs and goals are.
It’s true that crushers are customizable to help you extract material, break it down into usable product, and get it to market most economically and efficiently. The best way to find the right crushers for your unique operation is to work with a knowledgeable material handling solutions partner like Kemper Equipment.
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The right partner can help you design a custom crushing circuit to boost your productivity and transform your operations.
Are you gearing up for a career in Crusher and Binder Operator? Feeling nervous about the interview questions that might come your way? Don’t worry, you’re in the right place. In this blog post, we’ll dive deep into the most common interview questions for Crusher and Binder Operator and provide you with expert-backed answers. We’ll also explore the key responsibilities of this role so you can tailor your responses to showcase your perfect fit.
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Researching the company and tailoring your answers is essential. Once you have a clear understanding of the Crusher and Binder Operator‘s requirements, you can use ResumeGemini to adjust your resume to perfectly match the job description.
Crusher and Binder Operators are responsible for operating and maintaining crushing and binding equipment in the construction industry. They work with a variety of materials, including rock, concrete, and asphalt, to create the materials needed for roads, bridges, and other infrastructure projects.
Crusher and Binder Operators use heavy machinery to crush and grind materials into smaller pieces. They must be able to operate this equipment safely and efficiently, and they must be able to troubleshoot any problems that may arise.
In addition to crushing equipment, Crusher and Binder Operators also operate and maintain binding equipment. This equipment is used to mix and bind materials together, creating the final product that is used in construction projects.
Crusher and Binder Operators are also responsible for quality control. They must ensure that the materials they produce meet the required specifications. This may involve testing materials, making adjustments to equipment, or taking corrective action as needed.
Safety is a top priority for Crusher and Binder Operators. They must be aware of the potential hazards associated with their work and they must take steps to prevent accidents. This may involve wearing protective clothing, following safety procedures, and using equipment properly.
To prepare for an interview for a Crusher and Binder Operator position, it is important to have a strong understanding of the key job responsibilities. You should also be able to demonstrate your skills in operating and maintaining equipment, as well as your knowledge of safety procedures. Here are a few tips to help you ace your interview:
Before you go to your interview, take some time to research the company and the position you are applying for. This will help you understand the company’s culture and values, as well as the specific requirements of the job. You can find information about the company on its website, social media pages, and Glassdoor.
There are a few common interview questions that you are likely to be asked, such as “Tell me about yourself” and “Why are you interested in this position?” It is helpful to practice your answers to these questions in advance so that you can deliver them confidently and concisely.
The interviewer will want to know about your experience in operating and maintaining crushing and binding equipment. Be prepared to talk about your skills in these areas, as well as your knowledge of safety procedures.
First impressions matter, so it is important to be enthusiastic and professional throughout your interview. Dress appropriately, arrive on time, and be polite and respectful to everyone you meet. Show the interviewer that you are interested in the position and that you are confident in your abilities.
Now that you’re armed with the knowledge of Crusher and Binder Operator interview questions and responsibilities, it’s time to take the next step. Build or refine your resume to highlight your skills and experiences that align with this role. Don’t be afraid to tailor your resume to each specific job application. Finally, start applying for Crusher and Binder Operator positions with confidence. Remember, preparation is key, and with the right approach, you’ll be well on your way to landing your dream job. Build an amazing resume with ResumeGemini
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Disclaimer: The names and organizations mentioned in these resume samples are purely fictional and used for illustrative purposes only. Any resemblance to actual persons or entities is purely coincidental. These samples are not legally binding and do not represent any real individuals or businesses.