Driven by the dual-carbon (“carbon peaking and carbon neutrality”) strategy, the photovoltaic industry continues to expand rapidly, placing higher demands on the performance and reliability of key components. As a core consumable in automated PV module production lines, photovoltaic guide rollers must deliver excellent wear resistance, low friction, superior aging resistance, and reliable dimensional stability. Traditional metal or standard rubber guide rollers are increasingly unable to meet the requirements of high speed, high precision, and long service life. Consequently, polyurethane elastomer guide rollers are becoming the preferred choice for production line upgrades.
Against this backdrop, Feilong Polyurethane Equipment leverages its deep expertise in polyurethane processing to provide manufacturers with high-precision, high-stability oil-heated polyurethane elastomer casting solutions—empowering customers to achieve significant improvements in product quality and production efficiency.
Why Polyurethane Elastomers Are Preferred for Photovoltaic Guide Rollers
Polyurethane elastomers (PU), characterized by a unique molecular structure, offer adjustable hardness (Shore A 60–95), high resilience, superior wear resistance, and excellent oil and weather resistance. When applied to PV guide rollers, PU materials provide several key advantages:
- Reduced Wafer Scratching Smooth surface and moderate hardness help prevent micro-cracks or edge chipping on fragile silicon wafers during transport.
- Longer Service Life PU wear resistance is 3–5× that of natural rubber, significantly reducing replacement frequency and equipment downtime.
- Smoother, Quieter Operation High damping properties absorb vibration, enhancing production line stability.
- Cleanroom Compatibility No dust shedding, meeting strict cleanliness requirements of PV manufacturing environments.
However, to fully unleash the performance potential of PU elastomers, precise and stable molding equipment is essential—this is where Feilong’s oil-heated casting machines deliver unmatched value.
Technical Features of Feilong’s Oil-Heated PU Elastomer Casting Machines
Designed specifically for high-performance elastomer applications, Feilong’s oil-heated polyurethane elastomer casting machines offer key advantages aligned with the manufacturing requirements of photovoltaic guide rollers:
1. Precision Temperature Control System
Using heat transfer oil circulation, the system achieves a temperature accuracy of ±1°C. This ensures the polyol and isocyanate components react under optimal thermal conditions, preventing uneven curing or bubble defects. The result is dense, uniform internal structure and consistent mechanical performance of the guide rollers.
2. High-Accuracy Metering and Stable Mixing
Equipped with high-precision servo-driven metering pumps, component ratio accuracy reaches ±1%. Combined with static/dynamic mixing technology, the machine guarantees highly uniform blending, preventing issues such as insufficient local crosslinking or over-curing. This directly enhances the batch consistency of roller strength, elasticity, and durability.
3. Vacuum Degassing and Low-Pressure Casting
Optional vacuum degassing modules effectively remove entrapped air from raw materials. The low-pressure slow-pouring mode minimizes turbulence inside the mold, preventing pinholes, flow marks, or surface defects—critical for meeting stringent dimensional and aesthetic requirements of PV guide rollers.
4. Modular Design and Full Process Traceability
The system supports formula storage, process data recording, and remote monitoring. These functions facilitate quality control and process optimization across large-scale production, while ensuring compliance with supply-chain traceability standards increasingly adopted in the PV industry.
Conclusion
As high-end manufacturing moves toward greater precision and sustainability, the synergy between equipment accuracy and material performance has become a decisive factor in product competitiveness. With robust engineering capabilities, Feilong Polyurethane Equipment provides a solid foundation for the domestic production and high-quality manufacturing of PV guide rollers and other high-value polyurethane components. Looking ahead, as industry standards mature and application scenarios expand, oil-heated polyurethane casting equipment will play an even greater role in the development of next-generation photovoltaic and renewable energy technologies.
