01 Apron Feeders

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World-Class Apron Feeders



Discharge of apron feeder

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Metso Minerals World Class Apron Feeders

Backed by over 125 years of experience and expertise,Metso Minerals World-Class apron feeders set the worldstandard in quality,durability,and reliability.

Metso’s World-Class apron feeder is not a new design.As theoriginator of the crawler tractor-type apron feeder,Metso’sNICO®and Stephens-Adamson®have joined forces to com-bine the best features of their respective feeder designs.

The result is a rugged and reliable tractor-type feeder thatremains the preferred design throughout the world.

Benefits of the Metso World-Class Apron Feeder put it in aclass by itself.Metso offers a robust design with an intensecommitment to quality and attention to detail.The main

benefit to the end user is ruggedness and dependability forheavy-duty operations.The bottom line:reduced operatingdowntime and lower overall cost.

When your application calls for an apron feeder that offersmany years of trouble-free operation, contact Metso Min-erals.Skilled technical specialists will help you choose thebest feeder and accessories to suit your needs,then assist inplanning your installation.Years of low-maintenance,de-pendable service await.

Backed by Over a Century of Expertise

1 Metso Minerals feeders are built to endure the rigors of high- imp act dum ping of h eavy,ab rasive rock and agg regates.Metso Min erals custom -build s feeders to ha ndle nearly any lum p size and type of m aterial.

2 Truck dum p hop pers utilize the World Class Apron Feeder to wit hdraw rock and ore at a controlled rate of speed to feed other equipm ent such as imp act crushers or vibrat ing grizzlies.

3 Metso Minerals manu facturers Apron Feeders of various size,tonn age and drive configurations to meet the specific application and custom er requirements.

4 Metso Minerals feeders are used to extract crushed gold o re from ore bins and f eed Metso seconda ry cone crushers.4

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Features and Applications

Designed to Suit the Most Important Application...Yours.

Ideally suited for feeding large,lumpy,abrasive and heavymaterials during wet, sticky or frozen operations,MetsoWorld-Class apron feeders work well across a wide variety of applications:

• Feeding to and withdrawing from primary crushers

• Loading/unloading trucks and railcars

• Removing frozen materials from storage

• Feeding jaw crushers and belt conveyors

• High-abrasion applications frequently found in reclaim

circuitsMetso World-Class apron feeders should not be mistakenfor “pan or belt feeders”that are typically used in light dutyoperations not requiring the benefits of a true crawler trac-tor-type feeder.The World-Class feeder is offered in variousmodels,and in an infinite range of lengths to meet mostany tonnage requirements.The design is based on parts forthe world’s most popular crawler tractor.Because the partsare interchangeable,the volume of parts kept in stock maybe reduced.Also,parts are readily available at a relativelylow cost.

1 Metso World-Class feeders are comm only installed under surge bins,silos,an d hop pers that require equipment t hat is dependab le.These feeders are installed in th e cem ent industry to meter wet,sticky material.

2 Custom apron f eeder feeding a mill requiring an enclosure to wit hstand a vacuum -tight seal.

3 Metso standa rd apron feeders are engineered as a robust design and m anufactu red with att ention to details and quality.

4 Metso also designs and manu factures custom apron feeders for special applicati ons world wid e.Show n here is a special feeder with lum p breaker,tw o bed depth gates,and heavy- duty chain drag conveyor - for use in t he nickel ore industry.

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Advanced Features

deck,thereby preventing excessive deflections.During con-tinuous impact applications,manganese pans can be workhardened to achieve a hardness of over 500 Brinell.

Fabricated/Formed Steel Pans are used in applicationswhere extreme impact is not a factor.On widths that utilizean impact rail,an abrasive-resistant wear plate is furnishedon the underside of the pan.Fabricated flights are offeredon models AF4,AF5,and AF10.

All pans are bolted directly to the chain,eliminating theneed for special attachment to the links.High-tensile gradebolts and hardware are used to secure the pans to the links.

Pans feature an overlapping design and provide the tight-est possible seal and leak resistance on the top carry sideand as the pans articulate around the terminal ends.

Flights are protected at the loading point by an impact rail

View looking at drive/discharge end. under the pans.

Cast Alloy Steel Pans are also of-fered for special applications.

Impact RailImpact rails are used to prevent per-manent deformation of the pansduring severe impact loading, yetprovide ample clearance to prevent

pans from dragging.Two impact rails are typically used onfeeders 60”(1524 mm) and wider that have direct impact-ing.(Note:no impact rails furnished with 24”and 30”widths).

Heavy-Duty ChainCrawler tractor type chain is used on all models of Metsoapron feeders.This chain features hardened links,pinsand bushings,all made from heat-treated alloy steel. The chain links are drop-forged for greater weight-

carrying capacity and strength.Chain seals prevententry of abrasive foreign materials and prolong chainlife.Two types of chains are used.AF4,5,8,and 10 se-ries feeders feature standard sealed crawler tractorchain.Model 12,14,16,and 18 feeders use sealed andlubricated S.A.L.T.chain.Final chain type will be de-termined by Metso Minerals for each application.(S.A.L.T.chain is also available as an option for modelsAF5,8,and 10.) In either case,the chain bushing isshouldered into the outer link to provide the tight-est possible seal between the bushing and the pin.

Therefore,abrasives cannot get in to cause internalwear of the pins and bushings.The possibility of damage

and costly downtime is reduced.

Chain Take-UpChain take-up and adjustment is ac-complished by a threaded rod ex-tended from each side of thetake-up frame.This provides for con-venient, positive adjustment andhelps maintain tail take-up tensions.Hydraulic type take-up can be pro-vided if desired.

Heavy-Duty FrameRobust heavy-duty welded construction frame consists of main frame beams and cross members which provide rigidsupport for carry rollers.This outside roller channel can besectioned and bolted to the open beams if necessary.

• Lifting lugs are standard on all Metso feeders

• Frame can be bolted construction to allow for installationin existing facilities

• Metso standard paint provided on all models.

Feeder show n w ithout drive for clarity.

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A complete line of World-Class Apron Feeder accessoriesand auxiliary equipment makes your feeder adaptable tonearly any application.Metso custom-designs and manu-factures durable accessories to last the life of your feederwhile requiring minimal maintenance or added costs.

Drive UnitsA wide range of drive unit options is offered to meet nearlyany requirement.Available units include constant speedelectric,variable speed AC or DC,and variable speed hy-draulic drives.

Dribble Drag/Belt ConveyorsWhen required for cleanup,feeders can be equipped witheither drag scrapers or dribble belts.

Skirts & Discharge ChutesMetso Minerals’feeders can be equipped with skirts anddischarge chutes to accommodate feeder requirements.Skirts and chutes are manufactured out of structural steelplate,rigidly stiffened with structural supports that bolt tothe feeder frame.Welded or bolted skirt/chute liners of vari-ous materials are supplied for maximum wear.Dust coversand shear bar/gate can also be supplied to complete your

Rugged Apron Feeder Accessories...For Your Specific Application Need

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package.Rear and side nip safety guards can be furnished(optional supply) if skirt boards are included.

Lump BreakersLump breakers/cutters are utilized to break up wet,sticky,clay-like lumps prior to discharging off the head terminalend.They are commonly used in the cement industry to in-crease flowability where material is blended or wetteddownstream.(Note:lump breaker is not designed for crush-ing rock or hard materials.)

Lubrication,Safety & Instrumentation- Optional speed transmitter allows operator to monitor

feeder operating conditions from a remote location.- All necessary drive guards are offered.Special require-

ments can be accommodated pending feeder locationand safety code requirements.

- The World-Class feeder is designed as a nearly 100% self-lubricated unit.Special manual or automatic centralizedsystems can be furnished upon request.

Spare Parts & ServiceMetso Minerals stocks many original spare parts and offerson-site services for all World-Class feeder equipment.

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Options and Accessories

BEAM CAN BE EXTENDED TO SUIT

CUSTOMER REQUIREMENTS.

FEEDER LENGTH L= AVAILABLE IN LENGTHS TO SUIT

DEPTH, MN PANS A= 35 (889) 41 (1041) 50 (1268) 54 (1372) 64 (1625) 69 (1753) 71 (1803) See Note #4

lbs. lbs./ft. lbs. lbs./ft.

24 FS 9287 540 (610) MN

149730 10990 153880 9175

1143240 5515 147660 6020

139650 4200 146220 4750

96 FS 2 16270 1230 20295 1415 30690 2270(2438) MN 19650 1510 25450 1820 31850 2470 39120 2890 47210 3086 60550 3710

114400 3800

SELECTION CRITERIASkirt Width (B) = 2 x max. lump sizeBed depth (D) = 1.5 x lump size or .75 x skirt width

Maximum Speed(s)Coal 0-80 fpmOres 0-60 fpm

SKIRT DETAIL

METRIC CONVERSIONS: 1 inch = 25.4 mm 1 foot = 304.8 mm 1 pound (lb.) = .45359 kg.

NOTE:

1 THE ABOVE WEIGHTS ARE APPROXIMATE AND ARE TO BE USED FOR ESTIMATING PURPOSES ONLY.

2 WEIGHTS DO NOT INCLUDE MATERIAL LOAD ON THE PANS OR WEIGHT OF SKIRTS, CHUTES ECT. SUPPORTED FROM THE FEEDER FRAME.

3 EXACT WEIGHTS AND DIMENSIONS WILL VARY DEPENDING ON FINAL SHAFT SIZES AND APPLICATION.

4 CONSULT WITH MANUFACTURE FOR JOB SPECIFIC SIZES, WEIGHTS AND DIMENSIONS.

30 FS 9734 575 11580 720 (762) MN

36 FS 1 10300 630 12350 770 (914) MN 13060 830

42 FS 1 10750 660 12980 840 (1071) MN 10840 670 14020 920

48 FS 1 11280 730 13760 935 (1219) MN 12610 840 14850 1020 19160 1460

54 FS 1 11790 790 14650 960 23970 1490 (1372) MN 13430 930 15840 1060 20440 1550 26470 1670

60 FS 1 or 2 12570 800 15390 1050 25100 1640 (1524) MN 14480 960 16770 1160 22080 1720 28340 1890 38360 2420

72 FS 1 or 2 13570 925 17420 1225 26650 1850 (1829) MN 16930 1200 19600 1400 25870 1830 31080 2180 41120 2610 50800 3000

84 FS 2 15120 1050 18805 1325 - - 28770 2010 (2134) MN 18070 1290 22060 1670 28630 2085 36260 2560 44330 2870 56780 3500

125630 4000

108 FS 2 17910 1450 23060 1780 31920 2580

(2743) mn 21860 1775 27960 2170 33750 2820 41480 3280 54540 3830 71770 4000 120 FS 2 or 3 19490 1490 25300 1970 33190 2690

(3048) MN 24010 1860 29950 2330 36100 3010 47710 3750 57442 4050 73730 4200

132 FS 2 or 3(3353) MN 77540 4340

PAN PAN FORMED / FABRICATED STEEL (FS) PANS AVAILABLE ON MODELS AF4, AF5 and AF10.

WIDTH TYPE QTY. APPROXIMATE WEIGHTS (lbs.) OF AN APRON FEEDER WITH A LENGTH OF 10 FEET

ins. (mm) FS/MN RAILS AND WEIGHTS PER FOOT FOR EACH ADDITIONAL LENGTH.

WEIGHT (lbs.) lbs. lbs./ft. lbs. lbs./ft. lbs. lbs./ft. lbs. lbs./ft. lbs. lbs./ft. lbs. lbs./ft.

DEPTH, FS PANS A= 35 (889) 41 (1041) - 54 (1372) - - - -

MAIN BEAM WIDTH C= W+14" (356) W+18" (457) W+18" (457) W+18" (457) W+20" (508) W+23" (584) W+23" (584) W+24" (610)

APRON FEEDER MODEL AF4 AF5 AF8 AF10 AF12 AF14 AF16 AF18 CHAIN PITCH (mm) 5.5118" (140) 6.750" (171) 8.000" (202) 8.500" (216) 9.000" (229) 10.250" (260) 10.250" (260) 12.500" (317)

Metso Minerals’ Apron FeederDimensional Data



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01 Apron Feeders