High-Temperature Silicone Roller for PVDF Cast Film Lines
Product Overview:
This high-temperature silicone roller is precision-engineered for continuous nip pressure and seamless web tracking in high-speed PVDF cast film extrusion lines. Formulated via a monolithic vulcanization process over a hardened alloy steel core, it delivers outstanding non-stick release and dimensional stability under continuous operational heat up to +250℃. With a strict total indicator runout (TIR ≤0.005mm), it guarantees unvaried cross-web pressure distribution, preventing film wrinkles, gauge variations, and chemical polymer sticking.
Roll Function: Chill Transfer Rollers
Industry Applications: Industry, Electronics
Inquiry Email: sales@astraroll.com
High-Temperature Silicone Roller for PVDF Cast Film Lines Details
The AstraRoll High-Temperature Silicone Roller is specifically designed as a backing pressure or nip roller for optical-grade and lithium-battery grade PVDF (Polyvinylidene Fluoride) cast film extrusion machinery. Operating directly adjacent to high-temperature extrusion dies, this roller withstands the intense heat of the molten PVDF polymer without geometric swelling, surface cracking, or hardness degradation.
Manufactured using a seamless injection molding process, the roller profile is completely free of joint lines and grinding streaks, preventing the transfer of surface defects to the hot film melt. It combines superior thermal conductivity with advanced non-stick formulation, ensuring instant release of high-tack PVDF resins and maintaining high-speed line synchronization without web wrapping or tracking failures.
Technical Parameter
Base Material: Forged 42CrMo Alloy Steel / Heavy-Wall Seamless Steel Tube
Surface Elastomer: Premium Heat-Resistant Liquid Silicone Rubber (LSR) Matrix
Thermal Deflection Limit: Continuous performance from -50℃ up to +250℃
Surface Finish Topography: 100% Monolithic Seamless Finish; Customized Matte or Gloss Roughness
Hardness Spectrum: 60 Shore A - 85 Shore A (±3 Shore A tolerance)
Total Indicator Runout (TIR): ≤0.005 mm (Achieved via synchronized CNC grinding)
Chemical Volatility: Zero molecule bleeding / Zero silicone oil migration to film
Cooling Architecture: Available with custom internal water-cooling core structures
Applications
PVDF Solar Back sheet Film Casting: Serving as the master contact nip roll to press extruded PVDF melts against chill-rolls for solar packaging lines.
Lithium-Ion Battery Separators: Guiding and nipping functional PVDF-coated separator films under continuous tension control.
High-Temperature Extrusion Lamination: Providing uniform compression to bond fluoropolymer films securely to metal foils or textiles.
Why Choose AstraRoll's PVDF Cast Film Silicone Roller?
+250℃ Thermal Stability Without Hardness Decay: Maintains its exact elastomeric rebound profile and geometric crown under continuous extreme heat, eliminating web tension wrinkles and tracking shifts.
Monolithic Seamless Casting for Zero-Streak Profiles: Completely eliminates joint lines and microscopic surface banding, guaranteeing a flawless, mark-free film cosmetic look edge-to-edge.
Advanced Anti-Sticking Matrix for Flawless Release: Formulated with low-surface-energy silicone molecules that prevent hot, high-viscosity PVDF resin from sticking or wrapping around the cylinder.
Micro-Level Concentricity Precision (≤0.005mm Runout): Finished via concurrent CNC cylindrical grinding to lock in an ultra-stable nip print, ensuring perfect film gauge uniformity across your entire production run.
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.
