In mining, quarrying, and aggregate production industries, reducing raw material to a usable size is one of the most critical stages of the production process. At this point, jaw crushersplay a vital role as primary crushing machines, especially for hard and abrasive materials. AsOnurmaksan, a mining machinery manufacturer based in Eskişehir, we would like to explain the working principle of jaw crushers and highlight their advantages in detail.
What Is a Jaw Crusher?
A jaw crusher is a type of crushing machine that uses mechanical pressure to break large rocks, ores, or stones into smaller pieces. It consists of two jaw plates: one fixed jaw and one movable jaw. The material fed into the crusher is compressed between these two jaws, causing it to fracture.
Jaw crushers are generally used as primary crushers, meaning they perform the first stage of size reduction before the material is processed by secondary crushers or screening systems.
How Does a Jaw Crusher Work?
The working principle of a jaw crusher is relatively simple yet highly efficient. The crushing chamber is formed by the fixed jaw and the movable jaw. Material enters this chamber from the top of the crusher.
The movable jaw is driven by an eccentric shaft connected to an electric motor. As the shaft rotates, it causes the movable jaw to move back and forth toward the fixed jaw.
During this process:
The movable jaw approaches the fixed jaw, compressing the material.
The applied pressure causes the material to crack and break.
When the movable jaw moves away, the crushed material falls downward.
Once the material reaches a size smaller than the discharge opening, it exits the crusher.
This continuous motion ensures a consistent and efficient crushing process. Unlike impact crushers, jaw crushers rely purely on compressive force, making them especially suitable for hard and tough materials.
Jaw Opening and Adjustment Mechanism
One of the key advantages of jaw crushers is the ability to control the final product size. This is achieved by adjusting the closed side setting (CSS), which determines the minimum gap between the jaws at the discharge point.
By changing this setting, operators can easily adjust the output size according to production requirements. Jaw crushers manufactured by Onurmaksan are designed with user-friendly and safe adjustment mechanisms, ensuring operational efficiency and workplace safety.
Advantages of Jaw Crushers
Jaw crushers are widely used across many industries due to the numerous benefits they offer:
High crushing force for hard and abrasive materials
Simple mechanical design resulting in low maintenance costs
Durable jaw plates with long service life
Stable and continuous operation
Wide range of capacities and size options
These advantages make jaw crushers a reliable solution for demanding working conditions, particularly in mining and quarry operations.
Areas of Application
Jaw crushers are commonly used in:
Mining operations
Quarry and aggregate production plants
Concrete batching plants
Recycling facilities
Infrastructure and construction projects
Thanks to their robust structure and reliable performance, they can operate efficiently even in harsh environments.
Jaw crushers are one of the cornerstones of crushing and screening plants. A well-designed and properly manufactured jaw crusher provides long-term cost efficiency, operational reliability, and high production performance. With its experience in mining machinery manufacturing, Onurmaksan offers durable, high-performance jaw crusher solutions tailored to the needs of the industry.
By choosing the right machine and understanding its working principle, businesses can significantly increase productivity while minimizing operational costs.
