Rock Crushers From Williams Crusher

Williams Patent Crusher understands that every crushing and grinding requirement is different. We customize mill orders to ensure every machine we design and manufacture gets the job done right and meets all customer specifications. Our expertise in rock crushing is why we’ve been an industry leader for over 150 years.

Since 1871, we’ve been engineering new designs and improving our existing models to deliver the highest-performing rock crushers on the market to our clients.

Our engineers have designed a variety of rock and stone-crushing equipment capable of completing any job you may have. Although most of our equipment is constructed for heavy-duty, industrial projects, we do offer machines for smaller stone crusher applications.

Turn to the industry leader in crushing and screening for your size reduction needs. Partner with Williams Patent Crusher today.


What Is Rock Crushing Equipment Used For?

A rock crusher is used to break down rocks into smaller pieces. You can crush the rock into pieces that are your desired product size. Rock crushers are most often used for gravel, sand, cement, mining, construction/demolition waste (such as concrete and asphalt), and industrial recycling.

Some of the most common types of aggregates in rock crushing are sandstone, gypsum, gravel, and limestone. The type of rock you plan to process and your desired product size will determine the size and model of rock crushers best suited for your application.


How Do Rock Crushers Work?

Typically, a hopper is used to hold and feed the rock to the mill. The rock is either gravity fed or a conveyor is used to feed the crusher. Once in the crusher, the material is broken down using a breaker plate and grinding chamber. The reduced rock exits the crusher via a conveyor belt or is discharged into a hopper.

In some applications, primary crushing alone can suffice. However, primary crushing is often followed by secondary crushing and tertiary crushing. Secondary crushing and tertiary crushing work to further reduce your material down to the exact size needed. The fineness of your final product and hardness of your feed material determines how many stages of reduction you will need.

Williams Crusher has a variety of rock crushers to help you meet any size reduction need.


What Type of Rock Crusher Do I Need?

The type of rock crusher required depends on moisture content, the hardness of the material, and your desired product size. Crushing may take place in one process with a single crusher. However, secondary and tertiary crushing can be used to further break your material down to the desired size. Many processing plants or rock crushing plants utilize several rock crushing stations to accommodate different material sizes and requirement.


Rock Crusher Applications

Williams’ range of rock crushers makes them applicable across a variety of industries for many different types of rock. From large industrial projects to smaller applications, our machines are equipped to handle your jobs.

Learn more about what kind of rocks you can crush with our machines.



Blasting, drilling, and scaling out limestone requires the right equipment. When it comes to limestone material size reduction, it’s no different. Williams Patent Crusher has designed and manufactured the most durable and efficient limestone mills the market for over 150 years.

Browse our catalog of limestone mills & crushers.


Diatomaceous Earth

Diatomaceous Earth

Williams Patent Crusher manufactures innovative diatomaceous earth mills for grinding, drying, and classifying, reducing material to a powdery, dust-like form. Our industrial diatomaceous earth grinders can be custom manufactured to produce the finished product needed for your application.

Learn more about our diatomaceous earth grinding mills.




Our engineers design and manufacture rugged barite grinding mills and crushers to reduce your material to the desired product size. Each grinding project is unique, and the Williams team can help create a custom barite grinding solution to fit your specific needs.

Learn more about our barite grinding mills & crushers.




Our variety of mills can process both synthetic gypsum and natural gypsum rock to your desired product size.

Each pulverizing and grinding project is unique, which is why our gypsum mills are custom designed and engineered to fit your needs.

Learn more about our gypsum mills & pulverizers.


Key Features of Williams Rock Crushers

We’re proud to offer a variety of rock crushers to help with a wide range of applications. Whether you need to reduce the size of large rocks to gravel, salt size, or a fine powder, Williams has you covered. Key features of Williams Rock Crushers include:

  • The ability to crush a wide variety of materials
  • Durable, reliable machine construction that lasts for decades
  • Customized systems and designs to meet your specific needs


Benefits of Williams Rock Crushers

The rock crushers we design are versatile and can be used in a variety of industries. But they provide more than just that:

  • Reduced production costs with a more efficient operation
  • Help from experienced sales engineers to determine the best rock crushing equipment for your application
  • The ability to be used on small to large operations, and everything in between


Types of Rock Crushing Equipment We Offer

The type of crusher required for an application depends on the hardness of material, moisture content, and desired product size. Williams expert engineers design a wide variety of machines to fit your exact application.

From impactors and roll crushers to impact dryer mills and roller mills that grind, dry, and classify in a single pass, Williams has a machine that meets your requirements.


Willpactor® Primary Rock Crusher

The Willpactor is an ideal primary rock crusher. Exhibiting a powerful design and rugged durability, the Willpactor® is perfect for primary rock crushing applications. Willpactors thrive in high-capacity applications such as crushing large run-of-mine rock.

Machines are available in different sizes to accommodate 44” to 72” rock. External product size adjustment and solid impact block adjustment are just some of the features of these rock crushing machines.


Industrial site with blue willpactor used for impact crushing - Williams Patent Crusher


Willpactor II Rock Crushers

The Willpactor II is better suited for secondary, tertiary, and quaternary crushing. The Willpactor II® handles feed sizes beyond the range of conventional secondary crushing machines. This secondary crusher features a large feed opening and a contoured hi-chrome rotor with easy maintenance and upkeep. These features make the Willpactor II® impact crusher a great asset for any rock crushing application.


Blue willpactor two for impact crushing - Williams Patent Crusher


Reversible Impactors

The Williams Reversible Impactor reduces maintenance and operating costs with few tolerances between crushing surfaces and no cage bars. Horsepower requirements per ton are generally low, making the Williams Reversible Impactor an economically feasible option.


Blue reversible impactor for crushing stone and other materials - Williams Patent Crusher


Traveling Breaker Plate Mills

The Williams Traveling Breaker Plate Mill is suitable for breaking down clay and muddy rock. The breaker plates on this hammer mill continually “travel” while in use with all slack on the away side. This design lengthens the life of the plates and eliminates clogging when processing wet, sticky material.


Blue rock pulverizer for material grinding with low operating costs - Williams Patent Crusher


Rock Crushing Hammer Mills

We manufacture a large variety of hammer mills and rock crushers to handle virtually any size reduction job. From large High-Tonnage Hammer Mills to smaller Type GP Hammer Mills, we have a solution for your project.


White rocket hammer mill used for reducing non-abrasive materials - Williams Patent Crusher


Rock Pulverizers

Our Vertical Roller Mills use centrifugal force to grind, dry, and classify material while maintaining low operating costs. These machines feature easily replaceable wear parts, automated process controls, and nearly infinite turndown thanks to VFAC drives. These machines are great for pulverizing rock in fine-grind applications.


Blue vertical roller mill pulverizer used for coal grinding - Williams Patent Crusher


Impact Dryer Mills

When your process calls for both grinding and drying, a Williams Impact Dryer Mill will help you produce a premium product at a lower cost per ton. Impact Dryer Mills grind, dry, and classify material as it moves through the system. These mills process materials such as gypsum, coal, clays and other minerals, pigments, limestone, filter cake, and more into a fine powder. Best of all, you can do it with the touch of a button with complete automation of the system.

A key feature of the Impact Dryer Mill is that it removes impurities, using an optional reject feature, to assure a high-grade finished product. Impact Dryer Mills also avoid over grinding, eliminating excess fines in your product.


Impact Dryer Mills


Contact Williams Crusher

We strive to achieve industrial leadership through excellence in product quality, customer service, innovation, employee involvement, and measured growth.

Contact us today to discuss your rock crushing application in detail with one of our experienced sales engineers. Call (314) 621-3348, email us at, or locate an agent near you.