Selecting the right materials and suppliers is critical for manufacturing high-performance polyurethane (PU) wheels. Below is a detailed breakdown:

1. Polyurethane Raw Materials

High-quality PU wheels require abrasion-resistant and high-rebound elastomers for the tread and strong materials for the wheel core.

#Bayer (now Covestro)

Desmodur Series: Isocyanate-based materials ideal for abrasion-resistant elastomers.

Baytec Series: Polyester or polyether polyols for high-strength and high-rebound PU.

#BASF

Elastollan Series: Thermoplastic polyurethane (TPU) for flexible and durable wheel treads.

Lupranate Series: Isocyanate materials for versatile PU applications.

#Huntsman

Irogran Series: TPU with superior wear resistance for wheel surfaces.

SUPRASEC Series: MDI (methylene diphenyl diisocyanate) for high-strength PU products.

2. Adhesives for Polyurethane Tread and Core Bonding

High-quality adhesives must provide strong bonding, durability, and heat resistance.

#Covestro (Bayer)

Desmodur RE Series: Polyurethane prepolymer adhesives for bonding metal and PU.

#BASF

Elastoskin Series: Adhesives designed to enhance bonding strength between PU and cores.

Top Chinese Brands

3. Wheel Core Materials

Core materials depend on application requirements, including load capacity and durability.

Engineering Plastics

#DuPont: Zytel Series (Nylon 66) for high-strength and heat-resistant cores.

#SABIC: Lexan Series (polycarbonate) for lightweight and durable cores.

#Sinopec Zhongyuan: Specialized polycarbonate materials.

Metals

#Alcoa: High-strength aluminum alloys for lightweight, heavy-duty cores.

#JFE Steel: High-strength steel for heavy-load applications.

#Chinalco (China Aluminum): Premium aluminum alloys.

#Baosteel Group: High-quality steel for durable wheel cores.

4. High-Precision Bearings

Precision bearings are essential for smooth operation, heavy loads, and high speeds.

#SKF (Sweden)

Industry leader in high-precision and high-load bearings.

#NSK (Japan)

Reliable bearings for heavy-duty and high-speed applications.

#FAG (Schaeffler, Germany)

Renowned for high-end precision bearings.

#LYC (Luoyang Bearing Research Institute)

Produces cost-effective, high-performance industrial bearings.

Summary and Suggestions

The materials and suppliers listed above are key for producing high-quality PU wheels. Selection depends on specific application requirements, including load capacity, abrasion resistance, and environmental conditions.