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History of Rock Crushers

Gravel pile

For as long as humans have constructed homes, buildings, and roads, we’ve needed aggregates. They are the definitive building blocks of civilizations throughout the world. For centuries the only way to produce aggregates was through sheer manpower: swinging stones and hammers against anvils to crush rocks into smaller and smaller pieces. Production was slow and tiresome. Over time, humans devised ways to use hydro, steam, and even gunpowder to crush more stone with less effort. These primitive rock crushing processes continued past the Industrial Revolution until a man named Eli Blake patented the very first modern jaw crusher.

The First Jaw Crusher

Eli Whitney Blake was running a hardware factory with his brother when at a town hall meeting in 1851, he became inspired to build a rock crushing device. The town was planning on building a two-mile long road which required quite a lot of aggregate. At the time, the method of producing aggregate was by hammering stone. Having a background in engineering, Blake gave it a shot.

Seven years later, Blake patented the first ever jaw crusher in history. The machine used compression between two jaws, one fixed and one reciprocating, to break apart particles. The jaws were set up in a V alignment with the material being fed into the top and crushed aggregate coming out of the bottom. Crushing of a rock was performed in multiple strokes, so the movement of the swing jaw could be quite small. The crushing power was supplied from flywheels on the sides of the crusher that moved the reciprocating jaw.

Grizzly-King Jaw Crusher

The design of Blake’s jaw crusher was so successful that 160 years later we still use the same principles in our Grizzly-King Jaw Crusher.

Cone Crusher Creation

The cone crusher followed the jaw crusher relatively quickly. While not popular at first, these pieces of equipment are now vital to many mining and aggregate operations throughout the world. The first cone crusher was developed by the Symons brothers to improve secondary and tertiary crushing applications. While jaw crushers provide excellent primary crushing duties, new ways of crushing needed to be devised for finer and more consistently sized aggregates.

In 1920, the Symons brothers created the first cone crusher. It crushed rocks by squeezing material between a gyrating cone and a fixed outer concave liner. The crushing process began when large feed entered the top of the crusher and became wedged between the cone and concave liner. It was crushed into smaller pieces and fell to a lower position, where the process repeated itself. This continued until the aggregate was small enough to fall out of the bottom of the crusher.

Blackhawk Cone Crusher

Modern cone crushers like the Blackhawk 100 Cone Crusher work in a similar fashion with more efficiency and longevity. For instance, if materials enter the Blackhawk that cannot be crushed or would damage the machine, a hydraulic cylinder allows for the automatic release of the material.

Jaw crushers and cone crushers are modern-day necessities for every aggregate operation. At Carminex, we specialize in supplying quarries and mining operations with the right aggregate equipment and parts so they can hit and exceed production goals. To contact a rock-crushing specialist, call us today at 1.450.922.0900.

What’s The Difference Between A Jaw Crusher And Cone Crusher?

Crushing equipment has the seemingly simple job of breaking up massive boulders and rocks into smaller aggregate. Something so straightforward is quite complex in practicality. Huge machines weighing thousands of kilograms, crush some of the hardest materials ever to exist, pumping out tonne after tonne of valuable stone.

The two most popular pieces of aggregate equipment in the market include cone crushers and jaw crushers. While cone crushers and jaw crushers both perform a similar job of breaking rocks, their approach and applications are quite different.

Introducing The Jaw Crusher

These burly machines act as a primary crusher for mining and processing ore. Two powerful jaws (one fixed, one moveable) are mounted in a “V” alignment. The moveable jaw reciprocates, crushing the large rocks until they are small enough to fit through the opening at the bottom of the “V.” The Grizzly King Jaw Crusher is one example of an effective aggregate solution.

Jaw Crusher Benefits

Every site has different needs and requirements, so jaw crushers can be found in different sizes and capacities. This gives you the opportunity to make the most optimal choice for your project. If you are not sure what size fits your current needs, speak to one of our aggregate experts.

Parts are easy to find, and maintenance is straightforward. Carminex carries a full stock of jaw crusher parts to keep your machines up and running. Performing simple maintenance will ensure that your jaw crushers provide long-term value.

Introducing the Cone Crusher

Cone crushers take care of secondary and tertiary crushing applications. Fine and medium-sized aggregates (used in asphalt and concrete, for example) are created by an eccentrically rotating shaft that grinds the rocks between a robust metal cone and a fixed wall. The Blackhawk 100 Cone Crusher is an example of a powerful cone crushing machine.

Cone Crusher Benefits

Large feed openings can be paired with small discharge sizes, giving cone crushers a high crushing ratio. This makes the machines incredibly efficient, reducing the need for further crushing applications. Adding in the low operational costs to run the machine and you get a powerful tool with a small footprint.

Sepro Cone Crusher

Wear-resistant, durable parts give the machine a long life-span. Parts are readily available as well, limiting any equipment downtime.

Additional Crushing Benefits

Carminex can create a portable plant for both the jaw crusher and cone crusher for contractors and sites with multiple locations. Some of our current mobile crushing plants are being built in Montreal right now for delivery to Indonesia.

As Canada’s largest supplier of mineral processing equipment, we’ve been creating and delivering custom solutions for aggregate equipment, including jaw and cone crushers, for several decades now. We’ve provided technical and operational support on many projects, ensuring that each job is met with the proper solution.
Speak to one of our aggregate experts today to find out if a jaw crusher or cone crusher is the right choice for you.