Industrial Hammer Mills

Williams Patent Crusher is a leading hammer mill manufacturer. Our industrial size reduction machines can handle any material size reduction job.

Choose Williams machinery for efficient pulverizing and long-term service. Hammer mills use midair and impact crushing, grinding, and shredding. This allows them to handle virtually any material.

Learn more about each of our hammer mill crushers below and contact the Williams team to discuss your application. Our sales engineers can help you find the right machine for the job.


What is a Hammer Mill Used For?

A hammer mill is a particle size reduction machine. After the material is fed into the machine, the hammer mill uses its continual high-speed hammer to grind and crush the material into smaller pieces.

Mills can be primary, secondary, or tertiary crushers, allowing for a wide variety of applications.


What is the Finished Product Size?

The finished product size depends on a few variables of the machine:

  • Number and size of hammers
  • Rotor speed
  • The settings of the grinding plate
  • Size of the openings in the perforated screens

Mills are often used for crushing and grinding material to particles smaller than 10 US mesh, which is less than 0.08” in size. Learn more about size reduction options with our Particle Size Conversion Chart.


What Industries Use Hammer Mills?

Williams hammer mills are a popular machine for particle size reduction. Many of our customers use these machines primarily as rock and limestone crushers. However, these machines are incredibly versatile.

Some of the industries and applications that benefit from this machine are:

  • Agricultural industry: To crush feed, grains, and agricultural limestone into digestible particles
  • Energy industry: To reduce fuel sources such as coal, corn, wood, biomass, biofuels, and more
  • Aggregate industry: To crush and grind gypsum, shells, limestone, clays, and more
  • Recycling industry: To finely crush printed circuit boards, “meatballs” and light scrap fiberglass
  • Medical industry: To create fine powders to use in chemicals or pharmaceuticals


Hammer Mill Grinders from Williams Crusher

Williams has been designing and manufacturing industry-leading hammer mills since 1871. We continue to innovate to meet the ever-evolving needs of our customers worldwide.

Williams strives to provide our customers with the latest advancements in the crushing and pulverizing industry. This ensures that you’ll receive a quality machine that adds efficiency and ruggedness to your production for years to come.

View our various machines below to learn about their applications and capabilities.


High Tonnage Hammer Mills

Williams’ heavy-duty mills are great for handling high-tonnage size reduction jobs. These machines can reduce large materials, such as automobile bodies, into particles smaller than 6”.

Other applications of this machine include:

  • Rock and coal crushing
  • Reducing limestone to sand
  • Pulverizing metal turnings
  • Shredding waste, wood, and paper for baling or burning

Learn more about High Tonnage Hammer Mill.


High Tonnage Hammer Mills - Willams Patent Crusher


Rocket Hammer Mills

The Williams Rocket Hammer Mill rapidly reduces non-abrasive materials to particle-sized pieces. Applications include turning materials into fine granules. These materials include cereal, animal by-products, sawdust, expeller cake, rags, and wood pulp.

Learn more about the Rocket Hammer Mill.


Rocket Hammer Mill & Sawdust Grinder – Williams Patent Crusher


Meteor Hammer Mills

Meteor mills use a high hammer-tip speed to produce a finer product. If your finished product needs to have specific characteristics, this is the ideal hammer mill. It is well suited for producing high-quality fluff for the absorbent and non-woven fiber markets.

Learn more about the Meteor High-Speed Hammer Mill.


High-Speed Meteor Hammer Mills – Williams Patent Crusher


Type GP Hammer Mills

The Type GP Hammer Mill is a simple, rugged machine made for small and medium capacity particle size reduction jobs. It's used for a variety of applications from coal to limestone to salt cake, sawdust, and woodchips.

This machine is versatile and performs efficient particle size reduction. The Type GP can also be customized to meet your application’s unique requirements.

Learn more about the Type GP Hammer Mill.


Type GP Hammer Mills – General Purpose Hammer Mills – Williams Patent Crusher


Ring Hammer Crushers

Williams Ring Crushers are also known as turnings crushers. They reduce the size of metal turnings, “bullshellings,” or clips through impact crushing.

Ring crushers produce their rated capacities with minimal machine downtime and can be engineered with custom capabilities. This allows you to meet the exact specifications for your material reduction application.

Learn more about the Ring Hammer Crushers.


Ring Hammer Crusher Hammer Crusher – Williams Patent Crusher


Slugger Crusher Hammer Mills

This type of mill is the ideal choice for applications that require a large feed opening. It is suitable for continuous jobs with either hourly output or reduction ratio.

These machines have rigid steel plate frames that resist shock and failure from fatigue. The adjustable breaker plates also compensate for wear.

Learn more about Slugger Crusher hammer mills.


Slugger Crushers Hammer Crushers – William Patent Crusher


Traveling Breaker Plate Mills

The Traveling Breaker Plate Mill is a non-clog hammer mill. This engineering allows a Slugger Crusher to reduce rock, clay, shale, and bauxite to less than ¾”.

It can reduce wet, sticky materials to a size suitable for further refinement. This machine’s self-cleaning breaker plates reduce maintenance and service costs.

Learn more about traveling breaker plate mills.

See This Machine in Action


Traveling Breaker Plate Mills – William Patent Crusher


NF & GA Type Hammer Mills

These mills are “overrunning” machines, reducing material on breaker plates and then crushing on grates. They are designed for operations that need processed feed before reaching the discharge area.

Both models have very rugged construction for considerable material reduction.

Learn more about Williams NF and GA Hammer Mills.


NF & GA Type Hammer Mills – Williams Patent Crusher


Reversible Hammer Mills

This machine's name comes from its ability to reverse the direction of the rotor. This rotor supports the hammers, bringing fresh grinding edges into action.

The reversible capabilities lower the frequency of service. Our reversible mills increase your production, double the life of your hammers, and reduce maintenance costs.

Learn more about Williams reversible hammer mills.


Reversible Hammer Mills – William Patent Crusher


Rigid Arm Breakers

This type of hammer mill has rigid hammers rather than swing mounted. This design feature makes this machine effective for the pulverization of soft, bulky, or fibrous materials into fine powders.

It is also suitable for reducing friable materials, such as coal, where low dust is desired. Each rigid arm breaker features many edges, which can be indexed and presented throughout the machine’s lifetime.

Learn more about our rigid arm breaker machines.


Rigid Arm Breakers Hammer Crusher – Williams Patent Crusher


Find the Hammer Mill Suited to Your Application

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