Pulverizers & Cage Mill Crushers

What does a Cage Mill do?

Cage mills are mechanical impact machines that crush, grind, or pulverize a variety of materials to specified degrees of fineness. They can be configured in two, four, and six row designs depending on the specific application needs, and are commonly used to pulverize industrial materials including coal and agricultural limestone.

Types of Pulverizers/ Cage Mills:

  • Multi-Row Cage Mills
  • Single Row Cage Mills (Secondary Crusher)
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Cage Mill Industry & Application Usage

  • Agricultural IndustryCommon applications include crushing fertilizer, animal feed, and distilled dry grains (DDG & DDGS)
  • Brick & Clay Industry: Applications and materials for this industry include shale, roof tile, and commercial & residential brick
  • Energy Industry: Reduce the size of materials such as coal and corn
  • Aggregate Industry:  Common materials that cage mills can finely crush include limestone, gypsum, shells, sandstone and more

Stedman Machine Cage Mills

Stedman’s range of multi-cage mills and pulverizer machines includes the H-Series, F-Series for sticky, high moisture and Y-Series designed for less abrasive material applications. In general, the larger the cage mill, the larger the feed size it will accept and the greater capacity it will produce. Capacity also depends on upon the speed at which the mill is operated, the feed size and its specific gravity, and the size of the desired product. Cage mills work by reducing the material they are fed to predetermined smaller sizes by striking repeatedly with cage pins and throwing the particles at high speed against each other, against the cage mill housing and against the other pins.

H-Series™ Cage Mill

The Stedman H-Series™ multi cage mill is best at pulverizing, grinding, crushing and mixing abrasive and non-abrasive materials – wet, sticky or dry.

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F-Series™ Cage Mill

The F-Series™, or Flared Series, Cage Mill features a unique flared discharge opening, efficiently reducing the wettest and stickiest of materials without clogging.

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Y-Series™ Cage Mill

The Y-Series™ is a selective crushing, controlled-impact, multi-cage mill designed for sizing thousands of minerals and agglomerates, including wet and tacky materials.

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Features & Benefits

  • Up to 40:1 Reduction Ratio
  • 2 to 7 Hp per ton
  • Tertiary crusher–for fine material
  • Grate bars and screens for accurate product sizing that are easily replaceable
  • Wet & sticky material is NOT a problem

Test Before You Buy!

Why Test?

Stedman's testing facilities provide real-world conditions to view your materials being processed. Test out a range of different size reduction methods, saving you both time and money when selecting the proper size reduction method.

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Cage Mill FAQs

Single-row mills, although normally classified as secondary crushers, are designed for heavy-duty crushing, frequently of hard and highly abrasive materials, although their versatility makes them valuable for the reduction of many kinds of materials. They are particularly useful in the beneficiation of sand and gravel and in the upgrading and crushing of all kinds of aggregates, ores and coal.

Multi-row mills normally consist of an even number of cages: two, four or six. The cages are arranged concentrically, with each cage spinning in the opposite direction from that of the cage adjacent to it. A multi-row cage mill employs multiple stages of selective impact reduction. The material to be reduced is fed into the center of the innermost cage, where it is struck by the massive spinning pins and distributed 360 degrees around the cage. Centrifugal force and the impact of the pins causes the material, now reduced to smaller pieces, to pass through the cage into the pins of the next cage, which is spinning in the opposite direction. The farther away from the center cage the particles travel, the more their impact velocity is increased.

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