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bulk handling
motorized pulleys
Troughing frames for belt conveyorswith an angle ranging from 20, 30, 35 up to 45°.
Pulleys sized to meet every demand.
Belt cleaners for belt widths up to 2.000 mm. Belt covers made of steel or PVC.
Features and Benefits of Motorized Pulleys
Purpose-built design
The Motorized Pulley has beenspecifically designed for belt conveyors.
Totally enclosed
The motor, gearbox and bearings aretotally enclosed and sealed inside asteel shell; therefore they are unlikelyto fail due to harmful environmentalconditions such as water, dust, gritchemicals, grease, oil, etc.
Space saving design
Because the drive unit and the bearingsare mounted inside the MotorizedPulley shell, it takes up much less room than a conventional drive. No need for costly extras like chains, v-belts, couplings, bearings, supportstructure and special guarding.
Safety
The Motorized Pulley is probably one ofthe safest drives available because themotor is completely enclosed and theexternal shafts are always stationary.The only moving external parts are theMotorized Pulley shell and bearinghousings.
Low purchasing and installation cost
The Motorized Pulley is quite often less expensive than a conventionaldrive because it has fewer parts, which reduces conveyor design andpurchasing costs. It is also much
quicker and easier to install – certainlyless than a quarter of the time neededto fit an exposed system.
Low maintenance cost
The end user also benefits from the Motorized Pulley, because it requiresno maintenance other than the recommended oil change every20.000 hours. In other words, there are almost 10 years between oil changesbased on an 8-hour/day – 5-day workingweek. In order to secure a long lifetime ofthe pulley, it is, however, recommendableafter approx. 2.000 hours to clean themagnet fitted to the oil screw.
Efficiency
The Motorized Pulley usually has amuch higher efficiency from electricalmotor to shell (pulley face) thanconventional drives, because it hasfewer frictional losses, and thereforeefficiencies of up to 97 % can beachieved.
Cleanliness
Because the Motorized Pulley is totallyenclosed, it cannot contaminate anyconveying materials such as electricalcomponents, plastics and other materialsthat must be kept perfectly clean duringhandling.
Aesthetic appearance
If installed correctly the Motorized Pulleyalways looks good. Due to its compactsize and smooth lines, quite often theMotorized Pulley is out of sight, becauseit is hidden within the conveyor frame.
Weight saving and distribution
Often the Motorized Pulley is lighter thanconventional drives and often it is possibleto reduce the cost of the conveyorstructure, because the weight is evenlydistributed within the conveyor frame.
Fewer parts
A Motorized Pulley consists of the driveand two fixing brackets! Conventional
drives can require up to 8 or moreseparate components, most of whichhave to be purchased from differentsuppliers or manufactured specially.
Low noise
Thanks to the totally sealed enclosureand high quality gears the MotorizedPulley runs almost at a whisper – avery important fact in today’s modernfactory environments.
The Bulk Handling Motorized Pulleys areproduced by RULMECA GERMANY GmbH, in Ascherleben - Germany, a manufacturingUnit of RULMECA Group specialised in theproduction of motorized pulleys216 - 1000 mm. diameter range.
Contact: RULMECA GERMANY GmbHWilslebener Chaussee 12 - 14D-06449 AscherslebenTel. +49 (0) 3473 956-0Fax. +49 (0) 3473 956-210e.mail: [email protected]: www.rulmeca.de
Motorized pul leys are designedand manufactured according to theExplosion ATEX directive. Group II category 3D (for dust), zone 22.
RULMECA HOLDING S.p.A.
Via A. Toscanini, 1I-24011 Almè (Bergamo) ItalyTel +39 035 4300 111Fax: +39 035 [email protected] www.rulmeca.com
Your local Partner:
Europe
DenmarkRULMECA A/STel. +45 36 [email protected]
FinlandRULMECA OYTel. +358 9 2243 [email protected]
FrancePRECISMECAEquipements de Manutention Tel. +33 3 88 71 58 00 [email protected]
GermanyRULMECA GERMANY GmbHAscherslebenTel. +49 (0) 3473 [email protected]
GermanyRULMECA GERMANY GmbHLeipzigTel. +49 (0) 341 339 [email protected]
Great BritainRULMECA UK LtdTel. +44 1536 [email protected]
KazakhstanRULMECA GERMANY GmbHRepresentative officeTel. +7 71835 492 [email protected] www.rulmeca.de
PortugalRULMECA DE PORTUGAL, LDATel. +351 275 [email protected]
Italy
RULLI RULMECA S.P.A. Tel. +39 035 4300 [email protected]
Africa
South AfricaMELCO Conveyor EquipmentTel. +27 11 255 [email protected]
Asia
ChinaRULMECA (TIANJIN) CO., LTD. Tel. +86 22 2388 [email protected]
IndonesiaPT. RULMECA INDONESIATel. +62 21 5435 [email protected]
ThailandRULMECA THAILAND CO. LTD.Tel. +66 2 337 [email protected]
Australia
RULMECA MELCOAUSTRALIA (PTY) LTDTel. +61 [email protected]
RussiaRULMECA GERMANY GmbHBüro Moskau:Tel. +7 499 132 [email protected]
SpainRULMECA ESPAÑA, S.L.U.Tel. +34 93 544 91 [email protected]
SwedenRULMECA A/STel. +46 511 160 [email protected]
TurkeyRulmeca Tasıma AksamlarıTicaret Limited SirketiTel. +90 312 284 64 [email protected]
North & South America
CanadaPRECISMECA LIMITEDTel. +1 519 627 [email protected]
USAMELCO, LLCTel. +1 919 663 [email protected]
RULMECA CorporationTel. [email protected]
VenezuelaINDUSTRIAS RULMECA S.A.Tel. +58-241-833.62.49 [email protected]
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Rollers and componentsfor belt conveyors in bulkhandling applications
With an experience of more than fifty years in belt conveyorsapplications, Rulmeca has beenconstantly increasing its productrange and developing solutionsto meet any specific applicationneed; in other words, a constantevolution.The state-of-the-art techniquesused in design and constructionmeans that top performancelevels are granted even in theheaviest operating conditions.
Conforming to the UNI-DIN, ISO,AFNOR, CEMA and BSstandards, Rulmeca products are used in countless differentsectors, such as mining, cement,steel works, glass, chemicals and fertilisers industries.
Rollers for belts widthsup to 3.000 mm.Available in diameters63, 76, 89, 102, 108,114, 127, 133, 140,152, 159, 168, 194 and 219 mm.Spindle: 15, 20, 25, 30,40, 50, 60 and 90 mm.
Garland shaped sets for belt widthsup to 3.000 mm.
bulk handling
www.rulmeca.com
Rollers, motorized pulleys andcomponents for belt conveyorsin bulk handling applications
RULMECAGROUPWorldwideorganisation
Stations
Carrying troughing setsThe arrangements of fixed carrying troughing sets can be with plain or impact rollers or suspended “garlands.”
Impact stationsImpact stations are used and positioned corresponding to the load points, where the lumps and the weight of material falling onto the belt could in fact cause damage to it.
Self-aligning troughing setsThe self-aligning troughing set is designed as a series of rollers arranged in a trough positioned onto the supporting transom which itself is fixed to a slewing ring which permits rotation. The slewing ring (a large ball bearing) permits a rotation limited to 5-8 degrees and is sized in proportion to the vertical loading; a tapered rollerbearing assembled to the shaft of the slewing ring, absorbs any side forces or overturning pressures.
Return stationsThe lower or return sets may also be chosen from varying arrangements according to the requirement: fixed sets with plain steel roller orwith spacer rings and suspended sets “garland” with plain rollers and with rings.
Garlands
Suspended “garland” sets The “garland” consists of a series of load carrying rollers, attached together by chain links.This arrangement gives to the troughing set the characteristics of mobility and flexibility resulting in a perfect central belt trough.
Motorized pulleysThese versatile and successful pulleys are easy to install, have low running costs and minimise maintenance. They are used on light conveyors (in supermarkets and airports), on heavier plants for the mining industries and agriculture, on permanent and mobile quarries installations and in the food industry. Their completely stainless steel executions are approved by the American Authority FDA. Motorized pulley are totally sealed, have a protection class IP 67 and a maximum power of 250 kW.
PulleysRulmeca designs and manufactures pulleys, using materials of the highest quality in a production process employing advanced technology.This, together with the application of the Quality Assurance system certified to ISO 9001:2008, contributes to the production of high quality products offeringdependable, long life performance in the field and appreciably reducing maintenancecosts.
AccessoriesCoversThe necessity to protect belt conveyors may arise from the weather, from the volatile characteristics of the conveyed material, or from the type of works plant, and also from European norms that require the covering of the total length of a belt conveyor in the open. Rulmeca covers do not require maintenance and are very easy to installand move around. There are two styles of covers that are proposed: those in pre-formed PVC and those in corrugated galvanised sheet steel.
Belt cleanersThe use of cleaning equipment has become an indispensable requirement to assure general plant efficiency and to reduce the times of service needed for maintenance. There has been a notable development of this equipment in recent time for differingreasons: prolonging the life of the conveyor; limiting the deterioration of the belt,improving the energy efficiency of the installation, reducing loss of material therebyincreasing the load capacity, eliminating a major cause of wear on the return rollers.
Rollers and components for belt conveyors in bulk handling applications
Note: not all the products shown can be sold in all countries. Please contact Rulmeca for more information about the organization network and product distribution.
impactidlerset
return/tailpulley
snubpulley
return self-aligning
set
plough cleaner
carryingthroughing
set
garlandsset
carrying self-aligning
set
transitionthrough set tangential
scraper(pre-cleaner)
return set
tension pulleywith counterweight
motorizedpulley (orhead/drivepulley)
maincleaner
snub pulley
deviationpulley
cover
PSV seriesFor heavy duty belt conveyors at high speed andwith lump size material shafts diameter from 20 to 40 - tube diameter from 63 to 194.
PL – PLF seriesFor belt conveyors handling corrosive materialsshafts diameter from 20 - PVC tube or steel tube diameter from 89 to 140.
MPS seriesFor medium duty conveyors at high and mediumspeed shaft diameter 15 and 20 - tube diameterfrom 50 to 108.
Return rollers Return rollers with spaced rubbers rings used to sustain and support the belt during itsreturn section, where the conveyed material tendsto stick to the belt or wherever there is a wearproblem or tracking problem of the belt itself.
Return rollers with helical rubber rings for self cleaning used on the return transom to support the beltwhen the material being conveyed, even if only a little sticky, is very viscous..
Return rollers with helical steel cage for self cleaningused in the return section to support the belt when the conveyed material is very adhesive.
Guide rollers Vertical rollers with cantilevered spindles toavoid the belt tracking off.
Impact rollers Or shock absorbing rollers consist of a base steelroller design, on which are fitted rings, designedto resist and absorb the pressures given by theimpact of materials onto the belt.
For more than 45 years Rulmeca, underthe Precismeca brand, has beensupplying rollers (DSK series Ø133÷219 bearing 6310-6312) and
garlands with up to 90 mm. shaft diameter, installedworldwide mainly in the coal and brown-coal industry.
Rollers
TOP new thermoplastic rollerA light, strong, eco-friendly solution from Rulmeca.Rulmeca is proud to introduce the new TOP roller, atotally thermoplastic roller with the exception of thesteel in the ball bearing and the shaft.Shafts diameter: 20 and 25 mmTube diameter: 89, 102, 108, 127, 133 mm
Belt tracking rollerthe Rulmeca belt tracking roller responds instantlyto the misalignment of the belt and does so withoutspecial modifications to the structure. Itaccommodates belts ranging from 450 - 2300 mm.
Melco Supreme roller High density polyethylene (HDPE) roller formining and aggressive applications Heavy Duty - Corrosion and Abrasion Resistant 127/133mm Diameter, 25mm shaft, 6205 bearing152/159mm Diameter, 30mm shaft, 6306 bearing
Rollers, stations and garlands certified according to ATEX 94/9/EC norms, Explosion Group I category M2 for Mines, Explosion Group II category 2G for gas and 2D for dust, Explosion Group II category 3G for gas and 3D for dust (Zones 1, 2 for gas, Zones 21, 22 for dust).
NEW
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AntirunbackrollerIt prevents the belt run-back in the event of abelt break, failure of thehold-back or any otheruncontrolled run-backof the belt.
belt trackingroller
