Hammermills

Hammermills

Hammermills

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

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

INTRODUCING PRATER-STERLING’S EVOLUTION HAMMERMILL
A BREAKTHROUGH IN COST-EFFICIENT SIZE REDUCTION
GRINDING FUEL, FOOD, AND FIBER FROM 2” THROUGH –50 MESH
WITH 15% TO 20% LESS HORSEPOWER

Evolution Hammermills

Features:
• Pre-break multiples impact six times
• Shaped grind chamber accelerated capacity
• Twin-shock absorbing screen carriages

Benefits:
• 15% to 20% lower energy requirement
• Reversible rotation distributes wear
• Rota-break doubles effective grinding chamber
• Pre-grinds before screen contact





Mega Mills

Features:
• Minus forty mesh particle distribution
• Dynamic rotor symmetry assures superior balance & uniform hammer wear
• Single latch door for easy maintenance/cleaning with absolute cleanout front access
• Zero tolerance hammer tip to screen clearance
• O-ring door seals for dust-tight operation
• Easily removable, lighter rotor and pressure vessel sealed housing

Benefits:
• Bridges the gap between hammermills and fine grinders
• Uniform grinding with less heat build-up
• Bearing & shaft arrangement makes for a smoother & quieter operation
• Test show that Prater Mega Mills run quieter and more efficient than conventional hammermills.
• 24 hr/day 7 days/week operation
• Reduced downtime, maintenance and power requirements

Hammermills - Information

When processing materials in various industries, such as biofuels, fiber, recycling, food, chemical, feedstuffs, aquatic and pet food, selecting the most efficient processing equipment to meet your application may be a challenge. Since 1925, Prater-Sterling has solved the most demanding processing challenges for thousands of customers with truly innovative particle size reduction, classification, agglomeration, pneumatic and controls solutions that deliver shorter term return on investment.

* Cellulose and grain to fuel applications reducing raw materials to uniform particle sizes for cost-effective conversion
* Transforming waste into low emission fuels and resalable by-product
* Particle reduction for higher densities to reduce shipping and storage costs
* Finer particle distribution feedstuffs for optimum feed conversion
* Custom process controls for optimal levels of efficiency and cost savings


Prater-Sterling mills are widely used throughout the process industries for many different particle reduction applications requiring high capacities, power efficiency and uniform particle size. All models feature our exclusive Full Screen design, a proven system that ensures use of the entire available screen area, enhancing end product quality and equipment productivity.

One of the most valuable benefits to owning a Prater-Sterling mill is that you can increase throughput capacity without increasing power requirements. The design improves access to working parts simplifying screen changes.

The center feed, reversible and fully symmetrical rotors distribute the product across the full width of the screen area for even hammer wear, and allows the rotor to be reversed so 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.

Hammermills - Applications

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 (G-6) Turnbull Bakeries wanted to automate the handling of their toast grinding for making breadcrumbs as well as increase production. Manual handling generated a large amount of waste & dust, which required constant housekeeping. A Prater G-6 Hammermill was determined to provide the needed capacity & allowed the grind size to be changed just by changing the hammermill speed, increased capacity 4-fold, number of operators fell from 3 to 1 & the system operates without spillage or dust. 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 (G-6) A premier global supplier of two-piece capsules and capsule machinery requested a recommendation for crushing gelatin capsules. After some discussion, it was decided that the perfect fit would be a Prater G-6 hammermill. This hammermill uses an 1/8” screen and runs 300 lbs of empty gelatin capsules per hour. It [G-6]"is working perfectly & is operating as expected. Everything is 'lovely' at this point!" exclaimed a company spokesperson. Glue Graphite Grass Seed Screenings Gum Arabic Gum - Chewing Hay

Hominy Feed Horseradish Kalsomine Kleenex Macaroni (G-6) One of the oldest operating manufacturers of quality pasta products in the Western U.S. installed a stainless steel Prater G-6 hammermill. The mill, driven by a 30 hp motor, runs 2,000 lbs of dry macaroni (with a bulk density of 50 lbs/cubic ft) per hour. 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 (G-7) White flake grinding system (including a Prater G-7) for a new facility in Almaty, Kazakhstan, can produce 48 metric tons/day of different grinds (incl. -100, -200 & -325mesh soy flour.) “We selected Prater-Sterling’s system because it offered us the very desirable combination of highly efficient equipment that …We attribute the value of this system in part to Prater’s extensive experience with both white soy flake & the various ways it can be processed” said a VITA spokesperson Spaghetti Spices (G-7) This int’l supplier of ground spices wanted a size reduction solution that had the flexibility to grind a myriad of natural material & could be easily/quickly cleaned to change from product to product w/out cross-contamination. The Prater G-7 hammermill was chosen for this grinding system & allows for grinding spices to –30 mesh, -40mesh & –60mesh. Throughput varies with the material. The 60 HP VFD allows the mill for variable speed & for flexibility for a coarser or finer grind as desired. 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