UHMW-PE Material Gravity Roller Applied on Filter Machine with
Corrosion Resistant Feature
The gravity roller is mainly used on filtering machines with the function of avoiding filtering cloth to play and protect the
cloth. The roller is not used on gravity conveyors. It is very
weight, so can make the cloth of filter down enough.
Φ ≤ 300 mm; Tube Width ≤ 3300 mm. Customized as per your request.
The external bearing rollers of the filters are replaced frequently
because of poor sealing, it is easy to immerse in water and cause
bearing corrosion and damage. Hongda can customize internal bearing
rollers or external engineering plastics bearing rollers. Which
have good performances of waterproof and corrosion resistant, long
service life and no need of regular maintenance and replacement.
|Outside diameters run out of roller||mm||0.5-0.7|
|Revolving resistance of roller||N||3.3-3.5|
|Applied in temperature||℃||Less than 80|
Difference between metal roller, ceramic roller, rubber roller and
|Metal roller||Ceramic roller||Rubber roller||Plastic / Nylon roller|
|advantages||rigid and not easily deformed;recyclable;surface colourful||insulated;corrosion-resistant;wear-resistant;no adhesion||light;good vibration absorption;||water-proof;dust-proof;corrosion-resistant;low friction
coefficient;low noise;low power consumption;easy installation.|
|disadvantages||inconvenient installation;non- corrosion resistant;unsatisfactory
sealing ;easy to tear belt when roller breakdown.||easy broken; inconvenient installation;||large friction coefficient;non-corrosion resistant;easy aging||not bear high temperature; applied in the status of below 80℃|
● More than 30 Years Professional Production Experience. Hongda factory was founded in 1983.
● Professional research and development team. Professiona technicians from famous Universities pour to
assistance ensuring the product is right you strong desired.
● For decades, Hongda insists on customer-focus. Pursuiting quality as first and efficiency following on the
business. Being strict with ourselves in the sprit of
craftsman(great care, lofty character, well behavior) and proud of
customer satisfaction on the processing.
Test of UHMW-PE
|Project Name||Unit||Test Method||Test Result|
|Compressive Strength||MPa||ASTM D-638||≥42|
|Water Absorption||%||ASTM D-570||<0.01|
|Impact Strength||KJ/M2||ASTM D-256||≥140|
|Heat distortion Temperature||℃||ASTM D-648||85|
|Friction Coefficient||ASTM D-1894||0.11-0.17|
Under equal conditions, the service life of Hongda rollers is 2-3
times longer than that of common rollers.