CoreTech HDPE Conveyor Rollers0 pages

Coretech™
HDPE Conveyor Rollers

The CoreTech™ Advantage
CoreTech HDPE Rolls are highly effective
workhorses for the dirtiest, most abrasive
environments. They are ideal for highly corrosive,
acidic environments – including those with
sulfuric acid.
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CoreTech™ Tackles Common Issues
Life. CoreTech™ rollers offer the best combination of
structural strength coupled with the requirements of
mining, which include corrosion resistance, abrasion
resistance, and very low surface friction.
Weight. CoreTech rollers are approximately 40 percent lighter
than equivalent steel rolls and as the rollers get longer in the

larger diameter steel rolls, that weight reduction gets closer to 50
percent. CoreTech rollers require only one individual to lift, carry, and
place the roller, increasing productivity while keeping workers safe.
Power Consumption. CoreTech rollers have lower running friction
values, which, depending on the application, can decrease power bills
by up to 30 percent a year. Less power is used during start-up and
while in operation, contributing to lower electrical consumption.
Noise. CoreTech rollers create far less noise than steel rollers. The
estimated noise contribution of CoreTech rollers is +/- 10 dB below
the noise contribution of metal rollers. This noise variation can mean
the difference between functioning below the maximum decibel
levels and violating ordinances and compromising worker safety.
Corrosion. When moisture, acid, salt, or other corrosive materials
are present, CoreTech provides an excellent alternative to steel rollers.
CoreTech rollers provide the same CEMA ratings as steel rollers,
with no loss of functional performance, and much longer life.

Field-Proven Seal Design
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Centrifugal Seal – The key to the CoreTech™ sealing
arrangement, the centrifugal seal rotates with the roller and
is specifically designed to create a vortex with forces up to
9X gravity. This action expels moisture and fines that may
pass the rock shield. Centrifugal sealing is the most effective
method of preventing moisture and dirt from entering the
bearing chamber without the need for a grease pack.

Deep Groove Ball Bearing – A last line of defense, all
CoreTech rollers use deep groove, factory lubricated and
sealed for life ball bearings. The bearing selection ensures
all CoreTech rollers meet the required application ratings and
protect the bearings from premature failure due to corrosion
or spalling.

www.flexco.com
www.flexco.com

Rock Shield – The rock shield is pressed tight on the shaft
and is stationary when the roller is in operation. This is
the first line of defense and prevents larger material from
damaging the seal. Since the rock shield is stationary, it
improves safety by limiting rotating components accessible
to workers near the outside of the idler.

Bearing Housing – The bearing housing is fused to the
roller tube in a way that guarantees there is no path for
moisture or dust to enter the roller. While many rollers use
press fit end discs, the CoreTech roller is a unitary housing
design. This means no end disk walk out and no risk of
“pizza cutter” belt damage.