Manufacturing Case Study: High-Temperature Conveyor Rollers for EV Battery Coating Lines

As global demand for precision in EV battery manufacturing continues to surge, AstraRoll (Shaanxi Hongtai Gaoxin Machinery) is proud to announce the successful delivery of a specialized batch of rubber-coated rollers. These components are specifically engineered for the high-temperature sections of advanced battery electrode coating lines.

Designed for the most demanding environments, including drying oven sections and pre/post-calendering transition zones, these rollers demonstrate AstraRoll's commitment to high-performance industrial engineering.

In the battery coating process, transport components must withstand extreme thermal fluctuations and chemical exposure without compromising the integrity of the electrode. AstraRoll's solution features:

Core Material: Precision-machined SUS304 (06Cr19Ni10) stainless steel. This high-grade substrate ensures exceptional corrosion resistance and structural stability under intense heat, preventing any thermal deformation during long-term operation.

Advanced Coating Technology: A proprietary High-Temperature Silicone Rubber compound.

• Hardness: Optimized at 50~60 Shore A to balance flexibility with wear resistance.
• Thermal Stability: Formulated for continuous service at temperatures ≥350°C, preventing carbonization or delamination—common failure points in standard rollers.

Precision Machining: To meet the stringent H7 (+0.025/0) tolerance and 0.02mm concentricity required by the design, AstraRoll utilized advanced CNC grinding processes. This ensures a perfect bearing fit and minimizes vibration during high-speed conveying.

These rollers are critical for two primary stages in the battery manufacturing workflow:

Drying Oven Exit Zones: Managing the transport of electrodes as they stabilize after solvent evaporation.

Thermal Transition Units: Serving as core support components near heat sources, ensuring the delicate coating remains unscratched and uncontaminated.

3. About AstraRoll

AstraRoll specializes in the R&D and manufacturing of core components for precision machinery and smart equipment. With a focus on the New Energy sector and high-precision rollers, we provide global clients with end-to-end solutions, from technical evaluation to high-tolerance manufacturing.