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1. Range of resilience of polyurethane rollers: At high hardness, they still exhibit elongation and rebound similar to sulfurized rubber. The range of resilience for polyurethane elastomers is Shore A10-D80.
2. High compressive strength of polyurethane rollers: Their tensile compressive strength, tear compressive strength, and fatigue strength are significantly higher than those of general sulfurized rubber. At high hardness, their vibration compressive strength and bending compressive strength are also much higher than plastics.
3. Wear resistance of polyurethane rollers: Their corrosion resistance is extremely excellent, typically within the range of 0.02-0.10 (cm³)/1.61 km, approximately 3-5 times that of sulfurized rubber.
4. Oil resistance of polyurethane rollers: Polyurethane elastomers are highly optically active polymeric compounds with low affinity for non-optically active mineral oils, showing minimal corrosion in light fuel oils and mechanical lubricants.
5. Good resistance to oxygen and ozone of polyurethane rollers.
6. Good vibration absorption performance of polyurethane rollers: They can act as shock absorbers and buffers. In the die-casting mold processing industry, they replace sulfurized rubber and compression springs.
7. Excellent ultra-low temperature performance of polyurethane rollers.
8. Good resistance to light radiation of polyurethane rollers: Polyurethane materials have excellent performance against shock radiation, maintaining reliable processing performance even at 10-10 g radiation dose.
9. Good machining performance of polyurethane rollers (can be turned, milled, ground, drilled).

In addition, polyurethane rollers are constructed of polyurethane elastomers, combining the high toughness of plastics with the high elasticity of sulfurized rubber. They provide damping and relief functions and are commonly used in the die-casting mold processing industry to replace sulfurized rubber and compression springs.