UP RUNNING Broshor an, ei 20" x18" a Zee a wand o ope BY i EXCLU This is the most effective method yet developed for crushing, grinding or pulverizing. This unique principle operates with a Fain of hammer or ring blows which shalter and disintegrate the material being reduced. Materials are reduced 2 ways: (1) shattered upon entry by tho revolving hammers, (2) further disintagrated by forcetul impact against the heavy breaker plates in the cover. This dual mechanical reduction, plus the effect of particles im- pinging against each other in the air, causes most materials to be sufficiently reduced to pass through the adjustable grinding plate. Finished product size depends on: (1) the size of openings in perforated screens or spacing between the heavy duty grates; (2) the number, size and type of hammers or rings: (3) the setting of the adjustable grinding piate, and (4) the speed of the rotor. ROTORS The material to be reduced determines the rotor construction of a Stedman Hammer Mill. A series of tough armor plated steel disks or spacer plates is keyed to the extra heavily constructed rolor shaft. Long bolts pass through their outer diameters. From these, sets of hammers or rings are suspended. The rotor re- volves within a substantial housing of exclusive cast design Insuring maximum return on investment. All Stedman Type “A” 2-Stage Hammer Mills are fully adjust- able, the rotor can be made with adjusting holes for setting out hammers or rings compensating for wear. SHAFTS Shafts for all Stedman Hammer Mills are made of forged alloy steel, Machined to very close tolerances from 50% to 100% oversize to prevent whipping and vibration, PERFORATED EE Punched from tough, high carbon, woar-tosistant or stainloes steel, perforated metal screens are used in Stedman Type “A’ Cross Section of Stedman 2-Stage Swing Hammar Machine ON PRINC machines for sizing and medium hard materials like tankage, pressed cake, grain or shavings. Screens are mounted in a sub- stantial frame and the entire assembly slides into machined grooves in the side housing, Perorations run from Ye" to 2% Gamoters. Wom perforated screens can be removed easily The cage adds materially to the screen's life, holding it in per- fect alignment and preventing bending or sagging. aS AND RINGS Important to consider when deciding whether to equip a ‘machine with hammers or rings are the materials to be reduced, teed size, whether hard, sot, tibrous, tough, frabie or abrasive ‘Also equally important are finished product specifications. The {ype of hammers or rings selected depends also upon whethor the sized product is fo be uniform with a minimum of fines or pulverized with a maximum of fines. Stedman, with over 60 years | practical operating experience is well qualified to recom- ‘mend the proper size anc type of hammers or rings for the reduction to be eccomplished. The hammers end rings ore made of high grade manganeso or alloy steel, alloy steel parts being heat-treated to resist abrasive wear... Carbice tip hammers are available, E BARS savy auly grate bars are furnished when sizing hard and ‘abrasive materials like limestone, brick bats, raw or junk bone, fertilizer tailings and the like. These bars are of the “rapid discharge” type. Openings between the bers from Yieinch 10 4:inch are maintained by spacing blocks socuroly rivotod to the bars. The bars are so constructed that they can be shifted around in the machine distributing the wear and getting the maximum service from each set. When complete set of bars is installed in the machined recesses on the housing sides or bar presses against the spacing blocks of the next bar. Th maintains tho proper spacing. When the cover is lowered the grate bars are locked into position,207 3 12", 20" x 18Mounied on ‘Unit Base with Dirve! Ove Blower Fan ‘ane Direct Motor Brive. IDEAL FOR MANY MATERIALS Animal Tankage * Bark » Bauxite Ore » Bentonite Bones * Bone & Meat Scraps* Bumed Lime Cake = Cal- cium Carsonate ~ Carbon - Chomicale Clays = Coal * Corn Cracklings » Dolomite » Stone » Dross » Ex- eller Cake Fertilizer Materials » Fibre Board Scrap * Fish Scrap * Foundry Cores = Garbage = Garbage Tankage - Glue * Graphite - Green Bone = Gypsum Hard Rubber * Hog Chips » Hydrated Lime » Junk Bone ‘Limestone * Magnesite « Meat Cake» Mica Nitrates * Gil Sand Cores = Phosphate Rock * Potash * Quick Lime Flaw Fish = Aesin= Rosin Salt Cake Salts Saw. ust = Shellac + Shelled Corn » Soap Powder = Sodium Fluoride » Sodium Sulphate * Steam Bone * Tan Bark ‘Tankage * Urea Crystals * Vermiculite » Whey > Yeast Zine Oxide A Smooth ring large feed and hard B Shredded ring mmaterale © Double-ond, two-cornor | Assembled disc type rotor for 20” x 18”"size type, Carbide tipped UOf FOr 2x 18 size hammer for special triewbie counting) purpose mati ° 4 Complete plate type B Doudlewnd. tour | Foto lor kx 20" size fight duty'service iene ee E Doubled chisel type four rows of double-end hammer for ough and, reversible hemmers torous mtenais K From left, perforated metal screen only; the F Double-end fourcorner fetal screen only: tt type, medium duty pe fh) pororated screen a: Dovbesia eurccomar: Sippel partway ita type, heavy duty Secs capeane servis ‘screen H Hoary duty yoke ype L Ato fhe ies anc Used insmalfoire fees ct ga ban tmachincsr handling a notin Stedman mlsee A el ee | Tet) Ce? he special combination of features found in the Stedman Type B" Hammer Millis the result of over 50 years experience in etme required to reverse the hamm has rounded, the tips struction coupled 'a superior machin xtreme simplicity of design METHOD OF REDUCING MATERIALS: imple to maintain and efficient machine can be made tools or highly skilled labor. 'B" Hammer Mill ut rial distribut 10 compen Phosphate R Refractory Material Quartz a Flock Salt Sand Stone Brick Bats Glass Cullet Steel Tunings Iron Or Shale 3 Iron Borings Gypsum Terra Cotta Limestone agersSem Serie ACCESSIBILITY The Stedman Hammer Mills designed to allow 3 without removing the feed chute or auxiliary hoppe: ine back hat of easy access for adjustments and/or replacements. 8y remov Capacities and Specifications: STEDMAN Type “B" Heavy Duly Coal Hammer Mills | rs [Lt | | [ese Capacities and Specifications: STEDMAN Type °B” Heavy Duty Steel Tumnings Hammer Mills | ISTEDMAN'S TYPE “BX” HAMMER MILL DOWN RUNNING ultin Large Feed Opening Extra Heavy Houring Liners & Breaker Pistes ‘Adjustabio ‘aringing Plate Sectional Construction SUCCESSFULLY USED FOR CRUSHING AND HOGGING A WIDE VARIETY OF NON FRIABLE MATERIALS. Stedman Type BX Medium-Duty Crushers are recommended for reductions which do not require the use of heavy-duly machines. In construction and design, they are similar, including practically all features as offered in Stedman Type "B Heavy-Duty Crushers. Unusually large feed openings simplify the feeding of medium hard lumpy or bulky materials—difficult to feed the average crusher. Type 8X" Hammar Mills are recommended for hogging and crushing Metal Turnings, Wood Waste, Bark, Cark and similar materials. BUILT-IN METAL TRAP Positive, Gravity type. Trap contents will discharge by gravity by simply raising the hinged clean-out coor. EXTRA HEAVY HOUSING LINERS AND BREAKER PLATES The entire crusher housing is protected from wear by heav liners of maximum thickness, in the 20” x 12” and 20” x 18) i209, liners are provided below the sereen bars and at the lower back end, RADIAL ADJUSTING SPACER PLATES Full hammer or ring coverage is provided at every fractional partot the crushing chamber through the use of alternating spacer plates, Radial adjusting holes can be providedin the spacer plates for setting oul the hammers of rings to compensate for wear— ‘maintaining a uniform clearance between revolving and stationary forces, A partial list of materials: LARGE FEED OPENING The feed openings in all Type “BX” machines are unusually large—simplitying the feeding of large lumpy or bulky materials. EXTREME SECTIONAL CONSTRUCTION [As accessibility is very important in equipment of this kind— considerable thought has been given to this subject. By raising the back half of he coverin the larger machines, oF the one-piece hinged cover of the smaller machines—the interior is immodiatoly accossibls for inepection, adjustments, cleaning or replacements, ADJUSTABLE GRINDING PLATE The grinding plate against which materials are reduced, is of the fully adjustable type. By adjusting, proper clearance can be maintained between hammers or rings and grinding plate face—controlling size of finished product. The adjusting mechanism s positive and simple in operation— located at the outer side of the crusher and readily accessible,"5.12" Crusher. Fear view showin clout Soot and hinged cover. SeEcirIGATIONS Sai “tise (ot - Bett or Direct Horse Feed Inches Die Brive Power Shehest 2x8 a | &, 1020 exon | 7 wee |, 0 15:90 Wen aH" 1200 ay" 2" 98 ge, |(e-40 wrx” | 2600 4400 [aon 18” a, Ey 40-60 19" x 19 "3680 6000 20" x20" 10 20 50.75 tr x at" 6670 8:00 Dimensions and weights as listed are approximate. Weights apply to slandard machines when equipped with hammers, rings, perforated metal screens or screen bars most commonly Used) Weights and gimensions of direct motor driven machines IN vary with horsepower, typo and epoed of motor requirod, ‘oper operating speeds for specified reductions will be recom mended by our Engineering Department, Speeds as listed are ‘minimum and maximum. Rolling rings are not available in the 12” x 9" size. Flywheels are not standard equipment and are furnished only when required, Unless otherwise specified, all machines are built for right hand drive— determined when facing the machine at the teed end Cortiiod foundation plane and accurate chipping weighte will be furnished on requesteee ‘Sine Togo dm Crater See Guaiog no 613 See Catalog No 80°F ScoGmaognose oor ecto Duty Cage Mi Sieminoatue toe us ik Type" teay/ Day Hammary" Down Rung Hager M—Type BX Low Pe Hana My “T ‘See Cuming No. 600 ‘Soe Gatsoy No. 800, Cawloghte oor = Seeaaegre ss TEST PLANT - Select the perfect crusher for your application Stedman has one of the finest testing faciliies available. With ‘over 175 years of experience, many materials already have test INDIANA \ OHIO reports on fie. Whether hard granite, gravel, imestone, coal, ® ‘metal or raw garbage, callus for a comparison report or 10 schedule testing with our selection of fullsize equipment For a full-scale test, 800-1200 ibs. of your feed material will be required. 55 gallon drums are the most suitable container for ‘shipment and should be clearly marked with your company name Best routing sto Cincinnat, Ohio, and then through Aikins Lines, Inc. to Aurora, Indana. Ship prepaid to: Stedman Machine ‘Company, c/o Test Centar, 108 Indiana Ave., Aurora, IN 47001, Originater of the Cage Mit SINCE 1834 1-800-262-5401 STEDMAN MACHINE COMPANY + P. 0, BOX260 + AURORA, INDIANA 47001 + PHONE (812)926-0038 + FAX (812) 926-2482 E-Mail: sales@stedman-machine.com + Web Site: http://www-stedman-machine.com Printed in USA {catalog No, 600-R ‘© Canytaht 1996, Stecman Machine Compary