Polyurethane Liner for Cylinder

Polyurethane-lined cylinders are industrial equipment inner protective layers made primarily from polyurethane elastomers. Their core function is to extend the service life of the equipment and ensure production stability through the material's wear-resistant, corrosion-resistant, and high-elastic properties.

Material Characteristics

Wear resistance
Polyurethane's wear resistance is 3-5 times that of natural rubber, and it stands out particularly well in environments below 80℃.
Case: In sand grinding mills, the wear resistance of polyurethane lining can significantly reduce the wear on the cylinder from the grinding medium, thus lowering maintenance costs for the equipment.
Corrosion resistance
Polyurethane exhibits high resistance to non-polar mineral oils, fuel oils, and mechanical oils, effectively preventing corrosion of the lining.
Application: In chemical piping, polyurethane lining effectively transports acidic and alkaline media, reducing the risk of pipeline leaks.
High elasticity and recovery elasticity
Polyurethane elastomers offer a wide hardness range (Shore A10-D95), combining the flexibility of rubber with the high strength of plastic.
Advantages: Absorbs vibration energy, reduces impact damage to the cylinder, and enhances the stability of equipment operation.
High purity, free from pollution
Polyurethane-lined abrasion particles can be completely eliminated through heat treatment, preventing contamination of materials, especially suitable for industries with strict purity requirements such as food and pharmaceuticals.
High surface gloss
Polyurethane lining surface is smooth, material is not easy to adhere, which helps to improve grinding efficiency and reduce material residue.
 

Technical Advantages

Noise Reduction Performance
Polyurethane lining can effectively reduce noise during equipment operation, improve the working environment, and decrease noise pollution.
Vibration Damping Performance
Polyurethane lining offers excellent vibration absorption properties, which can reduce equipment vibration and enhance the stability of equipment operation.
Radiation resistance
Polyurethane lining maintains satisfactory performance under radiation doses of 10⁶-10⁸ Gy, suitable for special operating conditions.