Rulmeca Idlers and Rollers
Heavy duty return and trough rollers, maintanence free, specifically designed for
long operating life. Available in diameters: 63, 76, 89, 102, 114, 127, 133, 159,
168 and 194mm. Shafts: 20, 25, 30 and 40mm. Rulmeca idlers have a reputation
for long service life and excellent performance in different applications.
Trough Rollers

Typical application for the PSV rollers are: mines, quarries, cement plants,
coal-fired power plants, port installations.

The effectiveness of the PSV roller sealing system provides the solution to the
environmental challenges of dust, dirt, water, low and high temperatures or
applications where there is a large temperature gap between day and night. The
working temperature, with standard greased components is defined as between
-20C and + 100C. It is possible to reach temperatures outside of this range
using special grease, bearings and seals
Return Idlers
The straight tracking of the belt may be compromised by the type of conveyed
material, especially when this material is sticky and thereby adheres easily to
the belt surface. In this case, material is also deposited on the return rollers that
support the belt, adding an irregular addition of scale to the roller itself. As a
consequence, not only wear and tear of the belt occurs, but forces are brought
into play to move the belt away from its correct track. Return rollers with spaced
rubber rings contribute largely to eliminating the build up of scale that forms in
certain conditions on the belt surface. The rings are pointed, assembled at
intervals, in the central part of the roller, where they have the scope to break up
the scale which normally is present at the belt centre; meanwhile flat rings
mounted in groups at the extremities of the belt, support and protect the belt
edges, also in cases of limited belt wandering. Return rollers with rings should
not be used as belt tensioning devices.
 
Impact Rollers
Impact rollers 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. To limit the impact effect of the material onto the rollers, the latter
are covered with a series of rubber rings of adequate thickness and resistance. Impact rollers are under stress not only from the load of the material, but also
from the dynamic forces as the load falls onto the belt. The impact onto the belt, arising from the free fall of material will be naturally greater than in the case
where the material is deflected onto the belt by an inclined plate For the correct dimensioning and the choice of impact rollers in relation to the load check the characteristics of the base roller.
Melco Supreme
The Melco SUPREME boasts a wide range of superior advantages, features &
benefits:

- Steel tube ensures adequate mechanical strength for heavy duty loads
- Ultra thick abrasion and corrosion resistant 12mm thick HDPE sleeve
- HDPE contains carbon black increasing ultra violet resistance
- Steel and HDPE tube combination provides significantly reduced weight
- The bearing housing effectively locks the HDPE tube in position preventing
ttmovement along the steel tube
- Minimum C dimension decreases load induced shaft deflection
- Unique large diameter stoneguard with integral labyrinth design minimises possibility of being jammed by spilt
ttmaterial, and provides additional protection from water and dust
- Multi part labyrinth seal protects the bearing from ingress of contaminants
- Ultra low running resistance and break away mass reduces power consumption for start up and continuous
ttoperation
- Machined fi nish ensures LOW run-out, minimizing vibration and noise emission
- Castellated HDPE tube is a tight interference fi t on the steel tube
Top Thermostatic Roller
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. The new TOP
roller has a lower weight with respect to a steel roller (about 50%), which means
a lower power consumption during start/stop operation of the belt conveyor and therefore reduction of power requirements on the plant, easier mounting and maintenance operations, preventing back injuries of the operator and
guaranteeing a safer intervention, especially in application where roller mounting
or replacement mightbe critical (suspended belt conveyor, difficult access,
long conveyors), easier/cheaper transportation.
Furthermore the low level of abrasion and corrosion of this roller (wear resistant) guarantees a longer life of the roller and a lower maintenance of the whole plant. The TOP is belt friendly, since HDPE tube will not wear the belt high resistance to chemical agents. It doesn't rust, it is suitable for a wide variety of applications and it has a low noise emission (due to thermoplastic noise absorption).Thanks to the self-cleaning roller surface, there is a prevention of build-up of material, main cause of belt mis-tracking, and less spillage from the belt. The roller low running resistance sealing system means a lower motor torque need in conveyor starts, a lower motor power size, a reduction of energy consumption of the belt conveyor (added effect to that of the lower weight) and a lower belt consumption.
Trough Frames
Standard frames are 450mm to 2000mm, 20, 30, 45 degrees and customs
can be made on request. All trough frames are made to fit standard
New Zealand rollers.
Impact Beds

Impact beds are designed with one simple goal: protect the belt.

Features: Construction makes maintenance convenient and safe. Impact beds
separate in the middle and the two sides slide apart. A complete bar change out
takes just one or two hours. Impact Bar Supports enhance bar function. Made
from high-strength steel properly to absorb more impact energy.
Motorized Pulley

The Motorized Pulley is a real all-round component because of its wide power
and speed range from 0.09 to 1.0 kW.
This globally proved component is suitable for convey requirements in a wide
varietyof industrial branches and applications as for example:
- Food industry - Assembly line equipment
- Pharmaceutical industry - Packaging and weighing equipment
- Airport (check-in and X-ray machines) - Mobile conveyors
- Meat, fish and poultry processing - Post office sorting conveyors

The Motorized Pulley 138i is available in complete stainless steel for the down applications.In all versions it is power and weight optimized.
 
  Applied Conveyor and Polymers Ltd. New Zealand hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhlhhhLast updated Jan 2012