Different Types of Industrial Plastics
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Interroll manufactures conveyor rollers made of tubes to DIN standard. The standard allows certain deviations in concentricity.
The following tube lengths should not be exceeded for PVC-Copolymer tubes:
sound insulation
food grade
easy to clean
high impact resistance
corrosion proof
light weight
high-quality design
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Properties and applications for the industrial plastics used most frequently
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Polyamide
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excellent mechanical properties
high resistance to wear
low friction
scarcely any material fatigue
good resistance to chemicals
applications: sprocket heads, seals and bearing housings
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Polypropylene
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low specific weight
high resistance to heat
good resistance to chemicals
non-hygroscopic
applications: wheels, seals and bearing housings
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Polyvinyl chloride (rigid PVC)
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scratch proof
impact resistance
good resistance to chemicals
applications: tubes for PVC rollers
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Polyoxymethylene (POM)
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excellent mechanical properties
high resistance to wear
low friction
high dimensional stability
scarcely any water absorption
used for parts with special precision requirements
applications: toothed belt heads and slide bearings
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Approximate figures
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Property
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Unit
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Polyamide 6
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POM
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Polypropylene
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PVC
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Thermal resistance
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°C
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-20 to +100
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-40 to +100
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-10 to +80
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-40 to +50
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Food grade
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yes
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possibly
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yes
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possibly
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Water absorption
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%
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3 to 4
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0.7
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0
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0
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The figures indicated are not binding. They relate to an ambient temperature of +20°C and a relative humidity of 65%. In addition, these approximate figures depend on
the following parameters: duration of thermal exposure, type of mechanical load (direction of force, impacts, etc.), air humidity, solar radiation (UV), chemical influences,
component geometry.
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