Product Description
UHMW-PE Roller, is short for Ultra high molecular density polyethylene. UHMWPE Roller is a linear polythylene with a molecular weight more than 3 milion roller. It is an outstanding plastic with the best self lubrication, impact absorbing properties and the highest resistance.
UHMWPE Roller Structure
UHMWPE Roller available size
|
Roller Φ (mm) |
Roller lengths (mm) |
Bearings |
Shaft diameter (mm) |
Roller tube thickness (mm) |
|
63.5 |
190-3500 |
6204 |
20 |
6-20mm and customized thickness |
|
76 |
6204 |
20 |
||
|
89 |
6204 |
20 |
||
|
102 |
6205 |
25 |
||
|
108 |
6205 |
25 |
||
|
114 |
6205 |
25 |
||
|
127 |
6205; 6206 |
25, 30 |
||
|
133 |
6205; 6206 |
25, 30 |
||
|
140 |
6205; 6206 |
25, 30 |
||
|
152 |
6, 305, 620, 663, 076, 300 |
25, 30, 35, 40 |
||
|
159 |
6, 305, 620, 663, 076, 300 |
25, 30, 35, 40 |
||
|
165 |
6, 305, 620, 663, 076, 300 |
25, 30, 35, 40 |
||
|
178 |
620, 663, 076, 308 |
30, 35, 40 |
||
|
191 |
620, 663, 076, 308 |
30, 35, 40 |
||
|
194 |
620, 663, 076, 308 |
30, 35, 40 |
||
|
219 |
620, 663, 076, 308 |
30, 35, 40 |
Why use UHMWPE Rollers?
- 50% lighter than steel rollers → reduces conveyor load.
- 3–5 times longer service life than metal rollers.
- Lower noise during operation.
- No additional lubrication required → lower maintenance cost.
The difference between UHMWPE Roller and HDPE Roller
1. Material:
UHMWPE (Ultra High Molecular Weight Polyethylene):
Much higher molecular weight than HDPE.
Superior mechanical properties.
Tougher, more wear-resistant, and self-lubricating.
HDPE (High Density Polyethylene):
Lower molecular weight.
Still durable, but not as tough or wear-resistant as UHMWPE.
Cheaper and easier to process.
2. Wear & Abrasion Resistance:
UHMWPE: Outstanding wear resistance. Ideal for high-abrasion environments (e.g., mining, bulk material handling).
HDPE: Good wear resistance, but will degrade faster under heavy or abrasive loads.
3. Impact Strength:
UHMWPE: Very high impact strength. Absorbs shock well without cracking.
HDPE: Lower impact resistance. Can crack or deform under repeated heavy impact.
4. Friction Coefficient:
UHMWPE: Extremely low. Materials slide easily over it - reduces belt or material drag.
HDPE: Slightly higher friction. Not as slick.
5. Cost:
UHMWPE: More expensive due to processing and superior properties.
HDPE: More affordable; often chosen where extreme performance isn't needed.
If your application involves heavy loads, high abrasion, or constant impact, go with UHMWPE. If you're working in a lighter-duty environment and want to save on costs, HDPE might be enough.
Let me know your specific use case, and we can recommend the better fit.
Typical Properties of HDPE vs. UHMW
|
Property |
Units |
ASTM Test |
HDPE |
UHMW-PE |
|
Specific gravity (73°F) |
– |
D792 |
0.96 |
0.93 |
|
Tensile strength (73°F) |
psi |
D638 |
4,000 |
3,100 |
|
Tensile elongation (73°F) |
% |
D638 |
600 |
350 |
|
Flexural modulus of elasticity (73°F) |
psi |
D790 |
200,000 |
110,000 |
|
Hardness |
Scale as noted |
D785 |
Shore D 69 |
Shore D 64 |
|
Rockwell M&R, Durometer Shore D (73°F) |
D2240 |
|||
|
Izod impact (notched, 73°F) |
ft-lbs/in |
D256 |
– |
18.0* |
|
Coefficient of friction |
– |
Dynamic |
– |
0.10 – 0.20 |
|
Coefficient of linear thermal expansion |
in/in/°Fx10-5 |
D696 |
7 |
11.1 |
|
Heat deflection temperature (66 psi) |
°F |
D648 |
172 |
– |
|
Maximum continuous service temperature in air |
°F |
– |
– |
180 |
|
Water absorption (immersion 24 hours) |
% |
D570 |
0.1 |
Slight |
Applications of UHMWPE Rollers
UHMWPE (Ultra High Molecular Weight Polyethylene) rollers are widely used in industries that require high wear resistance, low friction, corrosion resistance, and excellent impact strength. Below are the main application areas:
Mining Industry
- Used for conveying iron ore, coal, copper, and other minerals.
- Ideal for heavy-duty, abrasive environments with high impact and dust.
- Replaces traditional steel rollers to reduce energy consumption and extend service life.
Ports & Bulk Terminals
- Suitable for transporting salt, sand, grain, fertilizer, and other bulk materials.
- Corrosion-resistant and non-rusting, making them perfect for humid or salt-rich environments.
Chemical Industry
- Excellent resistance to acids, alkalis, and other chemicals.
- Suitable for environments with corrosive gases or materials.
- Self-lubricating, reducing maintenance needs.
Power Plants & Steel Mills
- Commonly used in coal handling systems for transporting coal dust, slag, etc.
- Stable performance in harsh environments, with reduced risk of jamming or bearing failure.
Agriculture & Grain Processing
- Used for conveying grains such as wheat, corn, and rice.
- Non-stick and non-absorbent material keeps conveyed goods clean.
Cement & Construction Materials
- Ideal for handling clinker, limestone, gypsum, and other abrasive materials.
- Increases system efficiency and reduces roller replacement frequency.
UHMWPE Roller Export Packing
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