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Direct bonded ceramic pulley
lagging
reduces downtime as the ceramics have
a significantly longer lifespan compared with
conventional lagging material. |
Time And Cost Savings With Ceramic Pulley Lagging
Conveyor belt slippage can contribute
to significant losses in productivity with resultant
negative financial implications. Multotec’s Direct
Bonded Ceramic Pulley Lagging is a cost effective
solution which virtually eliminates slippage and
ensures optimum traction of drive pulleys under most
wet and slippery conditions.
Direct bonded ceramic pulley lagging also reduces
downtime as the ceramics have a significantly longer
lifespan compared with conventional lagging
material.
Lagging is a wear resistant cover which is applied
to pulley shells, to extend the life of the shell by
providing a replaceable wearing surface. Pulley
lagging also improves the traction between the belt
and the pulley.
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Ceramic pulley lagging is used in
instances where the pulley operates in extremely aggressive
conditions, such as on bucket elevators or where the pulleys
operate where one cannot prevent material from becoming
trapped between the pulley shell and belt.
Ceramic pulley lagging offers better wear properties and, in
spite of the aggressive environment, an extended lagging
‘life’.
Multotec’s highly effective, locally manufactured studded
tile lagging is applied to drive pulleys, while smooth high
alumina ceramic tiles are applied to non-drive pulleys.
“Although traditional lagging has assisted in limiting belt
slippage in some cases, each time rubber lagging slips
against the rubber belt, material is removed from both
surfaces,” Faan Viljoen, technical director of Multotec Wear
Linings, explains. “This significantly reduces the lifespan
of both the lagging and the belt, and again results in
increased costs for the mine.”
Viljoen cites an example at an iron ore mine where the
installation of Multotec Ceramic Pulley Lagging resulted in
much lower wear rates on pulley lagging as well as
significant improvements in productivity as a result of
reduced downtime owing to not having to replace the lagging.
Ceramic pulley lagging, applied and supplied by Multotec
Wear Linings, was selected following a successful trial
period of nearly three years on a snub pulley at the mine.
The 6 mm thick ceramic lining has been in operation for 14
years without any maintenance, compared to a wear rate of
1.5 mm a month on the conventional rubber lagging which it
replaced. “The ceramic material is only slightly more costly
than conventional rubber lagging, yet offers a lifespan of
at least 200 months compared to a mere eight months for
rubber in this application,” Viljoen says.
Other advantages include improved water shedding, increased
pulley life, decreased maintenance and lower running costs
of the conveyor system. Further applications for Multotec
Ceramic Pulley Lagging can be found in conveyor
installations at most mines and plants locally and overseas.
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