What is Size Reduction?
Size Reduction = Material + Energy
Stedman Machine Company uses the size reduction expertise to help evaluate, test, and specify the best size reduction equipment for your application driven project. Stedman Machine uses different styles of crushers, grinders, cage & chain mills based on the raw material being processed.
What are the types of Size Reduction Equipment?
- Impact – hitting friable material causing fractures
- Shear – tearing or ripping
- Compression – breaking material by squeezing
- Attrition – material pieces colliding with each other causing reduction
How do I know what Type of Size reduction Machine I Need?
Crushers are often described as Primary, Secondary, Tertiary, etc. depending on how many size reduction steps are needed and where within the process each reside. There are many types of equipment choices but selecting one depends on the answers to the following questions:
- What is the material?
- What is the moisture content?
- What is the maximum size going into the machine?
- What is the size ranged desired after crushing?
- What is the desired production rate of finished product?
Crushing & Size Reduction Equipment Available:
- Primary & Secondary Horizontal Shaft Impactors
- VSlam™ brand Vertical Shaft Impactors
- Stedman™ brand Cage Mill Disintegrators
- Single Cage King Series
- Two-row – coarser grinds
- Four-row – intermediate finer grinds
- Six-row – fine grinds for less abrasive materials
- Aurora™ brand Lump breakers
- Single rotor
- Dual rotor
- Single and Dual Rotor Chain Mills
- Hammermills
- Up running
- Down running
- Full circle air-swept
- Fine Grinders
- VRollermax™ brand Vertical Roller Mills
- MicroMax™ brand Fine Grind Air Swept Mills
- Custom crusher designs for special application needs
- High Temperature
- Stainless Steel; 304L, 316L
- Highly cleanable; semi-sanitary
Particle Size Reduction Equipment:
More About Particle Size Reduction Equipment
Today, there are many different size reduction machines available to make little pieces out of big ones. Particle size reduction equipment includes primary impact crushers and secondary crushers as well as milling machines - cage mills, hammer mills, pulverizers, and grinders.
Stedman manufactures a full line of particle size reduction equipment — primary impactors, secondary crushers, tertiary impactors, plus cage mill pulverizers, hammer mill crushers and lump breakers for the aggregate, mining, and industrial markets. Materials processed fall into broad categories including abrasive, non-abrasive, wet or dry, sticky, and friable. Stedman's experience evaluating these factors helps target the correct size reduction equipment for each unique project.
Test Before You Buy™
The Stedman Testing and Toll Processing Facility is the place to test your material in our full size equipment. If it can be crushed, ground, pulverized or mixed, chances are we’ve done it. We have more than 10,000 test reports to help get you to the best solution quickly. To learn more about what to expect from testing, read our article that ran in POWDER BULK ENGINEERING magazine.
Why Stedman?
For nearly two centuries, Stedman Machine Company has produced quality, reliable, and durable size reduction and industrial crushing equipment. Stedman has expert field service and installation technicians ready to assist with all maintenance and equipment commissioning needs.
- Unsurpassed industry experience – operating since 1834
- State-of-the-art equipment testing facilities
- Dedicated, professional staff
- Parts and service are available 24 hours a day
- Installation & maintenance services
Size Reduction Machine FAQs
As you look for particle size reduction equipment, if you have the answers to the following basic questions, a good, experienced supplier can help you maneuver through designing the best equipment for your application. Begin by answering these five questions:
- What raw material will be crushed?
- What's the raw material's moisture content range?
- What's the raw material's particle size range?
- What production rate should the size reduction equipment achieve (in pounds per hour, tons per hour, or kilograms per hour)?
- What particle size range must the final product have?
For processes that require frequent changeovers, particle size reduction machines with a wide range of process control and operating flexibility are the answer. Whether the materials are friable or not will affect the type of particle size reduction equipment that’s optimal. In addition to material type, the starting and final size of the milled material drives the mill selection process. Contact the experts at Stedman Machine Company to discuss which size reduction machine is best for your application.
Contact Us
Our 24 hour parts and service department along with our inventory of wear parts allow us to provide the fastest response time for parts and service.