Full Screen Hammer Mill

Prater Full Screen Hammermill

Since 1925, Prater has utilized the most advanced technology and innovative solutions to create state-of-the-art Hammer Mill and size reduction products that are used around the world. Our exclusive G-Series, Full Screen, Hammer Mill is specifically designed for applications that require high capacities, power efficiency and uniform particle size. This provides our customers with confidence in knowing that we have the ideal machine for their unique particle reduction applications.

Screen Size and Placement Matters

Our exclusive Full Screen design is a proven system that ensures use of the entire available screen area which enhances end product quality and hammer mill productivity. Hammer mill screens are strategically placed where extensive testing has shown the majority of milling and grinding takes place. This optimal placement increases throughput capacity without increasing power requirements and other costs. The design also simplifies screen changes by improving access to working parts.

Long Life and Versatile Hammer Design

The center feed and fully symmetrical rotors distribute the product across the full width of the screen area for even hammer wear. This allows the rotor to be reversed so that both edges of the hammers can be utilized before replacement is required. Correct clearance between hammers and screens is maintained by mounting all screens in heavy-duty frames. Rotors are wider for varied hammer arrangements, and are all supported between durable pillow block bearings. These proprietary design factors combine to provide a controlled, uniform granular grind with the benefits of easy maintenance.

Full Screen Hammer Mill Features:

  • Full-width top feed utilizes 100% of the useable screen area
  • Wider rotors accommodate a variety of hammer arrangements
  • Electronically balanced, top feed, reversible rotors
  • Fast wear parts change
  • 60 & 50 cycle direct drive models
  • Stainless steel construction (304 & 316 SS) available

Full Screen Hammer Mill Benefits

  • Uniform granular grind and even hammer wear
  • 24 hr/day operation rated
  • Hammer tip speeds from 14,000 to 21,000 Ft/Minute
  • Easy screen changes and full-access maintenance
  • Increased throughput capacity without increased power requirements
Full Screen Hammer Mill Sizes and Capacities
MODEL NUMBER SCREEN AREA
SQ. IN.
AVERAGE HP RPM
G5 440 5-15 1800
3600
G6 540 15-30 1800
3600
G7 790 40-60 1800
3600
G8 860 75-125 1800
3600
G25 2700 125-300 1200
1800

Here are the following types of material that have been used in our Full Screen Hammer Mill:

  • Alfalfa – Field Dried
  • Almond Hulls
  • Almond Shells
  • Aluminum Chloride
  • Aluminum Foil
  • Ammonium Nitrate
  • Ammonium Sulfate
  • Apples – Dehydrated
  • Apples – Raw
  • Asphalt – Hard
  • Asphalt Tile Scrap
  • Barium Nitrate
  • Barley
  • Barley Malt
  • Barley Malt Sprouts
  • Beans – Dried
  • Beet Pulp
  • Bone – Steamed
  • Borax – Powdered
  • Bran
  • Bran Flakes
  • Bread crumbs
  • Brewers’ Grain
  • Brewers’ Grain – Spent
  • Brewers’ Grits
  • Brewers’ Yeast
  • Buttermilk – Dried
  • Cake Mix – Devil’s Food
  • Calcined Diaspore
  • Calcium Carbonate
  • Calcium Chloride
  • Calcium Stearate
  • Calf Feed
  • Canadian Screening
  • Candy Bars
  • Candy – Hard Peppermint
  • Candy Tablets
  • Caraway Seed
  • Carbon – Activated
  • Carbon Bricks
  • Cardboard Scrap
  • Casein
  • Caustic Soda
  • Cellulose Acetate
  • Cellulose Sponge
  • Chalk
  • Charcoal – Activated
  • Cheese – Parmesan
  • Cheese – Whey
  • Chicken Litter
  • Chicle
  • Chili Peppers
  • Chili Pods
  • Cholene Chloride
  • Christmas Tree Ornaments
  • Cigarette Filters
  • Clay
  • Coal – Anthracite
  • Coal – Bituminous
  • Coca Cake
  • Coffee Bean Hulls
  • Cones – Ice Cream
  • Cork
  • Corn
  • Corn Gluten Feed
  • Cottonseed Meal
  • Cracker Meal
  • Daisy Puffs
  • Di-calcium Phosphate
  • Diatomaceous Earth
  • Distillers’ Grain
  • Distillery Slop – Dried
  • Dog Food
  • Dried Beans
  • Feed
  • Fish Meal
  • Fish Solubles
  • Flax Seed Screenings
  • Gelatin
  • Gelatin Capsules
  • Glue
  • Graphite
  • Grass Seed Screenings
  • Gum Arabic
  • Gum – Chewing
  • Hay
  • Hominy Feed
  • Horseradish
  • Kalsomine
  • Kleenex
  • Macaroni
  • Malted Milk Balls
  • Manure – Steer
  • Marshmallow – Rock
  • Meat Scraps
  • Metomucil
  • MicaMilk Powder
  • Milo
  • Molding Powder
  • Mushrooms – Dried
  • Navy Beans
  • Newspaper
  • Oat Groats
  • Oat Hulls
  • Oats
  • Oyster Shells
  • Paper – Sulphite
  • Peanut Shells
  • Peanut Skins
  • Peanuts
  • Peat Moss
  • Pecan Shells
  • Pellets – Feed
  • Pepper – Black
  • Phonograph Records
  • Phosphate – Diammonium
  • Pineapple Pulp
  • Plaster Molds
  • Plaster of Paris
  • Plastic Foam
  • Plastic Scrap
  • Potassium Chloride
  • Potassium Sulfate
  • Potatoes
  • Psyllium Seed
  • Puffed Wheat
  • Pumpernickel
  • Railroad Tickets
  • Resin – Synthetic
  • Riboflavin
  • Rice
  • Rice Crinkles
  • Resin
  • Rubber – Crumb
  • Safflower Seed Meal
  • Sal Ammoniac
  • Salt
  • Sawdust
  • Screenings
  • Sheep Manure
  • Shellac
  • Shives
  • Shrimp
  • Soap Chips
  • Soap Flakes
  • Soap Powder
  • Soda Straws
  • Sodium Carbonate
  • Sodium Nitrate Prills
  • Sodium Phosphate
  • Sodium Sulfate
  • Soy White Flakes
  • Spaghetti
  • Spices
  • Starch
  • Tankage
  • Tapioca
  • Terra Cotta
  • Tile – Floor
  • Tobacco Stems
  • Tomato Pomace
  • Tomato Soup – Flakes
  • Tripoly Phosphate
  • Vermiculite
  • Water Softener
  • Wheat
  • Wheat Germ
  • Wheat Gluten
  • Whey – Popcorn
  • Wood Flour
  • Yeast