1. bulk handling
Troughing frames for belt conveyors
with 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.
motorized pulleys
Features and Benefits
of Motorized Pulleys
Purpose-built design
The Motorized Pulley has been
specifically designed for belt conveyors.
Totally enclosed
The motor, gearbox and bearings are
totally enclosed and sealed inside a
steel shell; therefore they are unlikely
to fail due to harmful environmental
conditions such as water, dust, grit
chemicals, grease, oil, etc.
Space saving design
Because the drive unit and the bearings
are mounted inside the Motorized
Pulley shell, it takes up much less
room than a conventional drive.
No need for costly extras like chains,
v-belts, couplings, bearings, support
structure and special guarding.
Safety
The Motorized Pulley is probably one of
the safest drives available because the
motor is completely enclosed and the
external shafts are always stationary.
The only moving external parts are the
Motorized Pulley shell and bearing
housings.
quicker and easier to install – certainly
less than a quarter of the time needed
to fit an exposed system.
Low maintenance cost
The end user also benefits from
the Motorized Pulley, because it requires
no maintenance other than
the recommended oil change every
20.000 hours. In other words, there
are almost 10 years between oil changes
based on an 8-hour/day – 5-day working
week. In order to secure a long lifetime of
the pulley, it is, however, recommendable
after approx. 2.000 hours to clean the
magnet fitted to the oil screw.
Efficiency
Low purchasing
and installation cost
The Motorized Pulley is quite often
less expensive than a conventional
drive because it has fewer parts,
which reduces conveyor design and
purchasing costs. It is also much
The Motorized Pulley usually has a
much higher efficiency from electrical
motor to shell (pulley face) than
conventional drives, because it has
fewer frictional losses, and therefore
efficiencies of up to 97 % can be
achieved.
Cleanliness
Because the Motorized Pulley is totally
enclosed, it cannot contaminate any
conveying materials such as electrical
components, plastics and other materials
that must be kept perfectly clean during
handling.
Aesthetic appearance
If installed correctly the Motorized Pulley
always looks good. Due to its compact
size and smooth lines, quite often the
Motorized Pulley is out of sight, because
it is hidden within the conveyor frame.
Weight saving and distribution
Often the Motorized Pulley is lighter than
conventional drives and often it is possible
to reduce the cost of the conveyor
structure, because the weight is evenly
distributed within the conveyor frame.
Fewer parts
A Motorized Pulley consists of the drive
and two fixing brackets! Conventional
M o t o r i z e d p u l l e y s a re d e s i g n e d
and manufactured according to the
Explosion ATEX directive.
Group II category 3D (for dust), zone 22.
drives can require up to 8 or more
separate components, most of which
have to be purchased from different
suppliers or manufactured specially.
Low noise
Thanks to the totally sealed enclosure
and high quality gears the Motorized
Pulley runs almost at a whisper – a
very important fact in today’s modern
factory environments.
The Bulk Handling Motorized Pulleys are
produced by RULMECA GERMANY GmbH,
in Ascherleben - Germany, a manufacturing
Unit of RULMECA Group specialised in the
production of motorized pulleys
216 - 1000 mm. diameter range.
Contact:
RULMECA GERMANY GmbH
Wilslebener Chaussee 12 - 14
D-06449 Aschersleben
Tel. +49 (0) 3473 956-0
Fax. +49 (0) 3473 956-210
e.mail: faa@rulmeca.com
web: www.rulmeca.de

2. RULMECA
GROUP
Worldwide
organisation
Europe
Finland
RULMECA OY
Tel. +358 9 2243 5510
kpuhakka@rulmeca.com
Italy
RULLI RULMECA S.P.A.
Tel. +39 035 4300 111
export@rulmeca.it
www.rulmeca.com
Africa
South Africa
MELCO Conveyor Equipment
Tel. +27 11 255 1600
conveyors@melco.co.za
www.melcoconveyors.com
Asia
Denmark
RULMECA A/S
Tel. +45 36 776755
dk@rulmeca.com
Russia
RULMECA GERMANY GmbH
Büro Moskau:
Tel. +7 499 132 3774
faamsk@com2com.ru
www.rulmeca.de
Spain
RULMECA ESPAÑA, S.L.U.
Tel. +34 93 544 91 99
espana@rulmeca.com
France
PRECISMECA
Equipements de Manutention
Tel. +33 3 88 71 58 00
info.france@rulmeca.com
Sweden
RULMECA A/S
Tel. +46 511 160 27
se@rulmeca.com
Germany
RULMECA GERMANY GmbH
Aschersleben
Tel. +49 (0) 3473 956-0
faa@rulmeca.com
www.rulmeca.de
China
Germany
RULMECA (TIANJIN) CO., LTD. RULMECA GERMANY GmbH
Tel. +86 22 2388 8628
Leipzig
sales@rulmeca.com.cn
Tel. +49 (0) 341 339 898-10
www.rulmeca.com.cn
vertrieb.le-precismeca@rulmeca.com
www.rulmeca.de
Indonesia
PT. RULMECA INDONESIA
Great Britain
Tel. +62 21 5435 5608
RULMECA UK Ltd
suwarno.kie@rulmecaindonesia.com Tel. +44 1536 748525
uk@rulmeca.com
Thailand
RULMECA THAILAND CO. LTD. Kazakhstan
Tel. +66 2 337 0297
RULMECA GERMANY GmbH
th-sales@rulmeca.co.th
Representative office
Tel. +7 71835 492 98
Australia
baubakirova@mail.ru
www.rulmeca.de
RULMECA MELCO
AUSTRALIA (PTY) LTD
Portugal
Tel. +61 467666067
RULMECA DE PORTUGAL, LDA
markr@melco.co.za
Tel. +351 275 330780
www.melcoconveyors.com
rulmeca@rulmeca-interroll.pt
Turkey
Rulmeca Tasıma Aksamları
Ticaret Limited Sirketi
Tel. +90 312 284 64 74
turkey@rulmeca.com
North & South America
Canada
PRECISMECA LIMITED
Tel. +1 519 627 2277
sales@precismeca.ab.ca
www.precismeca.ab.ca
USA
MELCO, LLC
Tel. +1 919 663 2222
stevenb@melco.usa.com
www.melcoconveyors.com
RULMECA Corporation
Tel. +1-910-794-9294
mgawinski@rulmecacorp.com
www.rulmecacorp.com
Venezuela
INDUSTRIAS RULMECA S.A.
Tel. +58-241-833.62.49
rulmeca@cantv.net
www.rulmeca.com
RULMECA HOLDING S.p.A.
Via A. Toscanini, 1
I-24011 Almè (Bergamo) Italy
Tel +39 035 4300 111
Fax: +39 035 545700
export@rulmeca.it
www.rulmeca.com
9° ed. BU EN 06/12
Your local Partner:
Rollers, motorized pulleys and
components for belt conveyors
in bulk handling applications
bulk
handling
Rollers and components
for belt conveyors in bulk
handling applications
With an experience of more
than fifty years in belt conveyors
applications, Rulmeca has been
constantly increasing its product
range and developing solutions
to meet any specific application
need; in other words, a constant
evolution.
The state-of-the-art techniques
used in design and construction
means that top performance
levels are granted even in the
heaviest operating conditions.
Rollers for belts widths
up to 3.000 mm.
Available in diameters
63, 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.
Conforming to the UNI-DIN, ISO,
AFNOR, CEMA and BS
standards, Rulmeca products
are used in countless different
sectors, such as mining, cement,
steel works, glass, chemicals
and fertilisers industries.
Garland shaped
sets for belt widths
up to 3.000 mm.

3. Rollers and components
for belt conveyors in bulk
handling applications
carrying
throughing
set
Stations
Carrying troughing sets
The arrangements of fixed carrying troughing sets can be with plain or impact rollers or suspended “garlands.”
Impact stations
Impact 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.
garlands
set
Self-aligning troughing sets
The 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 roller
bearing assembled to the shaft of the slewing ring, absorbs any side forces or overturning pressures.
Return stations
The lower or return sets may also be chosen from varying arrangements according to the requirement: fixed sets with plain steel roller or
with 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 pulleys
These 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.
Pulleys
Rulmeca 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 offering
dependable, long life performance in the field and appreciably reducing maintenance
costs.
impact
idler
set
return
self-aligning
set
Accessories
Covers
The 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 install
and move around. There are two styles of covers that are proposed: those
in pre-formed PVC and those in corrugated galvanised sheet steel.
plough
cleaner
Belt cleaners
The 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 differing
reasons: prolonging the life of the conveyor; limiting the deterioration of the belt,
improving the energy efficiency of the installation, reducing loss of material thereby
increasing the load capacity, eliminating a major cause of wear on the return rollers.
snub
pulley
return/tail
pulley
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.

4. cover
transition
through set
tangential
scraper
(pre-cleaner)
carrying
self-aligning
set
Anti
runback
roller
It prevents the belt runback in the event of a
belt break, failure of the
hold-back or any other
uncontrolled run-back
of the belt.
motorized
pulley (or
head/drive
pulley)
snub
pulley
main
cleaner
deviation
pulley
belt tracking
roller
tension pulley
with counterweight
return set
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).
www.rulmeca.com
Rollers
PSV series
Return rollers
For heavy duty belt conveyors at high speed and
with lump size material shafts diameter from
20 to 40 - tube diameter from 63 to 194.
Return rollers with spaced rubbers rings
used to sustain and support the belt during its
return section, where the conveyed material tends
to stick to the belt or wherever there is a wear
problem or tracking problem of the belt itself.
PL – PLF series
Return rollers with helical rubber rings
for self cleaning
used on the return transom to support the belt
when the material being conveyed, even if only
a little sticky, is very viscous..
TOP new thermoplastic roller
Return rollers with helical steel cage
for self cleaning
used in the return section to support the belt
when the conveyed material is very adhesive.
Melco Supreme roller
For medium duty conveyors at high and medium
speed shaft diameter 15 and 20 - tube diameter
from 50 to 108.
Guide rollers
Impact rollers
Vertical rollers with cantilevered spindles to
avoid the belt tracking off.
Or shock absorbing rollers consist of a base steel
roller design, on which are fitted rings, designed
to resist and absorb the pressures given by the
impact of materials onto the belt.
For more than 45 years Rulmeca, under
the Precismeca brand, has been
supplying rollers (DSK series Ø
133÷219 bearing 6310-6312) and
garlands with up to 90 mm. shaft diameter, installed
worldwide mainly in the coal and brown-coal industry.
For belt conveyors handling corrosive materials
shafts diameter from 20 - PVC tube or steel
tube diameter from 89 to 140.
MPS series
NEW
Belt tracking roller
the Rulmeca belt tracking roller responds instantly
to the misalignment of the belt and does so without
special modifications to the structure. It
accommodates belts ranging from 450 - 2300 mm.
A light, strong, eco-friendly solution from Rulmeca.
Rulmeca is proud to introduce the new TOP roller, a
totally thermoplastic roller with the exception of the
steel in the ball bearing and the shaft.
Shafts diameter: 20 and 25 mm
Tube diameter: 89, 102, 108, 127, 133 mm
High density polyethylene (HDPE) roller for
mining and aggressive applications
Heavy Duty - Corrosion and Abrasion Resistant
127/133mm Diameter, 25mm shaft, 6205 bearing
152/159mm Diameter, 30mm shaft, 6306 bearing