Custom Polyurethane Laminating Roller for Lithium Battery & Film Coating

The AstraRoll Custom PU Laminating Roller delivers exceptional pressure uniformity and low maintenance for ultra-precise coating and lamination systems. In high-speed lithium battery manufacturing and optical film conversion, minor runout variations or surface imperfections cause uneven coating weights, web wrinkling, and product rejection—resulting in high material waste and downtime.

Our micron-level precision polyurethane rollers eliminate these processing bottlenecks. Featuring outstanding physical memory and low heat buildup, the tough PU shell handles continuous nip compression without permanent flat spots or face deflection. It provides a flawless, mirror-smooth contact surface that dampens mechanical vibrations, maintains consistent web tension, and prevents sliding scuffs on sensitive battery foils and protective films.

Technical Parameter

Coating Material: Premium High-Molecular-Weight Liquid Cast Polyurethane Matrix

Hardness Spectrum: 60Shore A - 95 Shore A (±3Shore A strict matching)

Core Base Framework: Precision Machined Seamless Steel Tube / Alloy Steel Shaft Base

Total Indicator Runout (TIR): ≤0.005mm (CNC finish-ground for micron-level concentricity)

Dynamic Balancing: ISO 21940 G2.5 standard matching for high-speed vibration reduction

Surface Finish Choice: Mirror Polish ($Ra \le 0.2\ \mu\text{m}$) / Matte Anti-Static Finishes

Chemical Immunity: Exceptional resistance to NMP, coating solvents, and industrial oils

Applications

Lithium Battery Manufacturing: Critical backing and laminating rollers within continuous electrode coating lines, slot-die coating assemblies, and battery separator film lines.

Optical Film Lamination: Precision application and nip rolls for protective films, polarizer films, and flexible electronic displays.

Coil Conversion & Foil Coating: Support and feed-roller assemblies handling continuous copper foils, aluminum coils, and thin polymer sheets.

Advanced Packaging Automation: High-speed multi-layer lamination lines for flexible packaging materials and barrier film webs.

Why Choose AstraRoll's Polyurethane Laminating Roller for Lithium Battery & Film Coating?

Micron-Level Concentricity Eradicates Coating Defects (≤0.005mm TIR): Component runout causes thickness variations and wavy coating layers. We precision-grind our polyurethane outer surfaces to a total indicator runout (TIR) of ≤0.005mm, ensuring perfectly uniform nip pressure to eliminate air bubbles and coating lines.

ISO 21940 G2.5 Dynamic Balancing for High-Speed Runs: High operating speeds create micro-vibrations that disturb fluid coating weight distribution. AstraRoll applies rigorous dynamic balancing to guarantee quiet, deflection-free performance at maximum automated line velocities, protecting your bearings from early wear.

Elite Solvent Resistance Against Aggressive Chemicals: Electrode slurry processes and adhesive lamination expose rollers to aggressive solvents like NMP. Our specialized polyurethane formula resists swelling, softening, and surface cracking, keeping its exact profile and durometer intact over long production runs.

Non-Marking Finish Keeps Web Surfaces Flawless: Low-grade polymers can transfer oil residues or cause micro-scuffs on sensitive optical films and thin foils. Our custom PU compound features excellent compression recovery and a non-marking matrix, providing an oil-resistant, gentle grip that keeps delicate webs free from cosmetic surface defects.

Q1. Are you a trader or direct factory?

We are a direct manufacturing factory with over 20 years of expertise in high-end industrial rollers, casters and material handling solutions. Our facility operates with ISO-certified quality management systems, allowing us to maintain full control over production cycles and quality standards. Throughout two decades of growth, we have established deep, long-term strategic partnerships with several listed companies and global automation leaders, proving our reliability as a high-tier industrial supplier.

Q2. What are your main products?

AstraRoll specializes in the engineering and production of three core product lines: Industrial Rollers, Heavy-Duty Wheels, and Precision Casters. We do not just sell components; we provide integrated movement and transport solutions. Our products are widely utilized across high-demand sectors, including: New Energy, Lithium Battery, Mining, Heavy Industry, Medical Institutional, Agriculture and Logistics.

Q3. What about delivery time?

We deeply understand that project timelines are critical.
Standard Products: Usually dispatched within 7–15 working days if the components are in stock.
Customized/OEM Orders: Depending on the complexity and volume, the lead time typically ranges from 20–35 days. This includes time for technical drawing confirmation, specialized tooling, and rigorous pre-shipment testing.
Shipping Methods: We offer flexible global logistics solutions, including FOB and CIF terms. We ship via Sea Freight (for bulk industrial orders), Air Freight (for urgent project needs), and International Express (DHL/FedEx/TNT) for smaller components or samples.

Q4. How can I get a quote for customized products?

Since a significant portion of our business involves specialized engineering, pricing is tailored to your specific technical requirements. To provide an accurate quote, please provide the following details: Technical Drawings or Sketches, Application Environment, Quantity, Special Requests. Our engineering team typically reviews and responds to custom inquiries with a formal quotation within 24–48 hours.

Q5. What is your payment?

TT / Paypal / Western Union / LC / Credit Card etc. are all available to us.