ElJay Rollercone® Classic and ElJay Rollercone® II

ELJAY ROLLERCONE36, 45, 54, 60, 66

®

ELJAY ROLLERCONE OFTEN IMITATED, NEVER EQUALED

®

The Rollercone II iscapable of increasingoutput up to 35%.

The TEREX | Cedarapids ElJay Rollercone® Classic andRollercone® II set the standard for high performance conecrushers. As with most leaders, they are often imitated but neverequaled. “New” innovations from competitors have usually beenproven for years in the ElJay Rollercone.

The Rollercone features advanced crushing chamber technologythat yields impressive capacities, fine output gradations and ahighly cubical product. Rollercones produce more sized producton the first pass than any competitive cone. Couple theRollercone’s advanced chamber technology with interchangeableliner configurations for fine or coarse crushing and you have theindustry’s most versatile cone crusher.

Advanced crushing chamber technology is the result of using theproper combination of stroke, speed and head angle. All threefactors are equally important to optimum cone performance.

The Rollercone hydro-pneumatic tramp iron relief system passestramp iron efficiently and quickly. Originally invented by ElJay,the superior Rollercone design has never been equaled bycompetitive cone manufacturers.

For unmatched high capacity crushing performance, field testedand proven engineering, state-of-the-art features and applicationversatility, the TEREX | Cedarapids ElJay Rollercone is truly theworld’s leading cone crusher.

INCREASED OUTPUT FROM ADVANCED ENGINEERING

Heavy-duty tramp iron reliefassembly with larger-bore reliefcylinders allows lower operatingpressures. Large-diametertubing with minimum restrictionslimit pressure spikes. Highhydro-pneumatic hold-downforce permits closer settingsbefore bowl float occurs.

This full size cone features alarge unobstructed feed openingto permit true choke feed.Motion at the top of the conehelps position oversize andslabs for entering the chamber.

Interchangeable crushingchambers allow conversion fromstandard to fine configurationswith a simple liner change. Nospecial parts are required tochange chamber configuration.

The Rollercone roller bearingshave capacities far in excess ofmaximum load, providing aproven long service life. Highlyconcentrated thrust loads arespread completely around theentire bearing area. More powercan be applied directly to crushing.

The main oil pump is electricallydriven. All lube oil is self-containedwithin the crusher.

Roller bearings allow usage ofnon-contact, maintenance-freelabyrinth oil seals. Close-running,deep-tapered, multi-groovedlabyrinth seals are the best conecrusher oil seals available.

Bonnet support is independentof the base frame. If damaged,it can be replaced quickly anddoes not require extensivedowntime associated withmachines that have the V-seatas part of the base frame.

Heavy-duty bonnet hasthicker cross sections andbolt on stop blocks.

Heavy-duty cone head andclose tolerance bearings assuretight closed side settings at allload conditions.

Heavy-duty field-provensteel base frame.State-of-the-art designensures structural integrity.

Bevel gears are sized forextra production capabilities.

Counterweights balance thecone allowing smooth operationwith minimal vibration.

Replaceable wear resistantguards protect the struts.

Anti-spin mechanismprevents spinning of conehead when empty.

MORE CRUSHING POWER

The unique Cedarapids/ElJay rotating wedge platetransmits 80% of the force through it to directcompression crushing. A Rollercone producesmore product passing the crusher’s closed sidesetting on the first pass than any competitive cone.

The combination of the balanced wedge platewith bolt-on counterweights along with large rollerthrust and radial bearings produce an action thatis smooth, efficient and nearly vibration free.

The cone head rides the wedge plate with a slighteccentric motion, squeezing rock between themantle and stationary bowl liner.

Rock is crushed as the thick part of the wedgecloses the mantle on the liner, creating theclosed-side setting. Crushed material dischargessimultaneously as the thicker portion of the wedgemoves away, creating the open side setting.

MORE SIZED PRODUCT

All Rollercone bearings are designedfor capacities in excess of maximumcrushing loads. Their superior bearing lifehas been proven in the field for over fiftyyears. Because of the impressive amountof net tons a Rollercone produces duringthe life of its bearings, it is one of the mostcost effective crushers on the market.

High capacity roller bearings have agreater-than-average load carryingcapacity, can withstand greater forces,minimize friction and generate a fractionof the heat, thus doing more work thanbronze bushings in shaft-type cones.

The wedge plate rides on the lower thrustbearings in the base and rotates aroundthe massive central spindle on the lowerradial bearings distributing crushing loadover a full 360 degrees. The upper thrustand radial bearings allow the wedge plateto rotate inside the cone head.

Due to the tighter tolerances of the wedge plate’s rollerbearing’s —1/10 those of a bronze-bushing cone—a truesetting is maintained. The tighter tolerances reduceoversize to about 20% instead of the 50% as withbronze-bushing cones when making a 1/2" (12.7 mm)minus product. This allows more feed material in the circuitwith less recirculation and that means more production.

UpperThrustBearing

LowerThrustBearing

WedgePlate

Mantle

DischargeSide

BowlLiner

ClosedSideSetting

BevelGear

PinionGear

PinionShaft

ELJAY ROLLERCONE DURABLE, INNOVATIVE, COST EFFECTIVE

®

SELF-CONTAINED OIL LUBRICATION SYSTEM

Rollercones run cooler than competitive cones. This is due to thefact that the weight and crushing stresses are spread over tworadial and thrust bearings so pressure in any one area is reduced.

Compare this to the bronzebushings in an old style cone whichmust withstand all the forces oftenconcentrated in one spot which canlead to breakdown of the oil film,heat producing metal-to-metalcontact and increased tolerances.

Low friction generates less heat making less oil necessary.The 54" (1372 mm) Rollercone requires only 24 gallons (91 liters),the 45" (1143 mm) Rollercone only 16 gallons (61 liters).A comparable shaft-type cone requires up to 200 gallons(757 liters), plus needs an extra cooler to dissipate heat.

All Rollercone oil is self-contained in the crusher base.No external cooling tanks are necessary. The tightly sealedsystem reduces the chance of contamination by water and grit.

The external lubrication pump assures an adequate oil supplyto the bearings prior to start-up. A fail-safe alarm horn alerts theoperator if oil flow drops below the required level.

Rollercones feature easy-to-change crushing chambers.Changing from a standard to a fine crushingchamber is all that’s required to match a Rollerconeto a new application.

With several liner configurations for the fine andstandard crushing chambers, Rollercones are truly ahighly versatile cone crusher. Rollercone crushing

Standard Chamber Fine Chamber

Self-contained oil sump From oil pump/filter

Changing crushingchambers only requiresinstalling manganesebowl and mantle.

chambers incorporate the same advanced engineeringtechnology as found in all TEREX | Cedarapids products.

Chamber liners are designed for maximum wearlife with a minimum loss of feed opening duringnormal lifetime operation. Liners are easily changedwithout dismantling the upper section or removingthe cone head.

Rollercone Oil Flow

Non-contactlabyrinth seals

ONE CRUSHER FOR ALL APPLICATIONS

ELJAY ROLLERCONE THE INDUSTRY’S MOST VERSATILE CONE CRUSHER

®

BEST CRUSHER PROTECTION

The Rollercone’s hydro-pneumatic tramp iron reliefsystem provides unequaled protection against damageand allows much higher crushing forces. Rollerconesfeature larger diameter bore relief cylinders that allowhigh hold down force at loweroperating pressures. Heavy-dutypiston seals and protective wearsleeves make servicing thetramp iron relief system quickand easy. The lift on a Rollerconeenables it to pass objects up to51/2 inches (140 mm).

The hydro-pneumatic reliefsystem was pioneered and patented by ElJay.The system offers a heavy-duty design with few movingparts that requires minimum maintenance.

The closed circuit relief system has large diametertubing with a minimum of angles and oversizedaccumulators minimizing shock levels to the crusher.

The hold-down pressure of a 45" (1143 mm) Rollercone— 400,000 lbs (181,440 kg) — is 1.5 times that used onmost competitive cones. That means a Rollercone can beset closer without bowl float and produce more work.

The relief system operates by forcing the bonnetupward against the system’s oil pressure in the reliefcylinders as an uncrushable object enters the cone’scrushing chamber. The oil pressure in turn compresses

a nitrogen gas bladder in the accumulator. Once thecrushing cavity is cleared, the gas forces the oil backinto the relief cylinder and the bonnet lowers to itsoriginal position.

This relief system also speeds clearing the coneshould it ever become blocked due to powerfailure or other difficulty. The bonnet is raised byrelieving oil pressure without loss of gas pressure.The cavity can be cleaned quickly and easilywithout damage to the crusher.

BrakeFloatingPlate

BrakeShaft

ClutchGuideRingAccessCover

MantleTorqueBar

BrakeCrossBar

BaseFrameSpindle

OverrunningClutch

ShearBolts

QUICK ADJUSTMENT SYSTEM

Hydraulic/shim adjustment makes changing the discharge opening fast andeasy. Adjustment is vertical using hydraulic rams, therefore bowl rotation is notnecessary. This design requires less headroom, less weight and eliminates theproblems associated with thread galling.

Exact setting is maintained by shim stacks of equal height. Shims vary inthickness and are color-coded and numbered for quick recognition. The shimshave offset slots for easy installation and are interlocking.

To tighten settings, release the clamp ring and raise the bonnet. Remove shimsfrom the lower stack to establish the new setting. Removed shims are stored inthe upper stack. The bonnet is then lowered and the clamp ring tightened.Tensioning of clamp bolts is done hydraulically.

SOLID CONSTRUCTION

The base frame consists of a massive stationary central hub andthree or more extremely strong beams joining it to the perimeterwall. The even distribution of forces on the Rollercone bearings isa big factor in the extremely long life of the bearings.

The roller bearing design minimizes frame deflection so allcrushing energy is directed to the product. Concentrated bendingstresses that occur in shaft type cone crushers are evenlydistributed in the Rollercone. Relative placement of the bearingsdirects crushing forces through the bearing envelope. Thiseliminates all edge loading of the bearings and tipping of the cone.

NO HEAD SPIN AT START-UP

The anti-spin brake device prevents thecone head from spinning when the crusheris running empty.

During crushing the brake allows thecone head to rotate slowly to the right(clockwise) but not in the opposite direction.This provides smoother operation andeliminates unnecessary scuffing wear onthe manganese at start-up.

The brake shaft is attached to anoverrunning clutch at the base of thespindle. A guide ring in the mechanismhas shear bolts which will break beforethere is any damage to the shaft or clutch.

Cedarapids Inc909 17th Street NECedar Rapids IA 52402USA

Form 23855 (12/05)Design and specifications subject to change without notice.Design features may be covered by patents issued and/or patents applied for.

TEL 319 363 3511FAX 319 399 4871WEB www.cedarapids.com

ELJAY ROLLERCONE

36, 45, 54, 60, 66®

In today’s competitive environment, it’s good to havehigh quality equipment. It’s even better to know thatyour equipment is backed by an outstanding distributorsupport network with the factory behind it. That’s whatwe mean by “Better Together” at TEREX | Cedarapids.

The partnership between you, your local distributor andTEREX | Cedarapids assures you of parts and servicewhen you need them, technical expertise and localapplication knowledge. With that kind of support, bothyou and your equipment will perform at peak levels.

TEREX | Cedarapids, your distributor and you.“Better Together.”

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