Custom Liquid Silicone Rubber Roller for TPU, PP, PVC, PC Film

The AstraRoll Custom Liquid Silicone Rubber Roller (LSR) represents the vanguard of elastomer technology designed explicitly for the hyper-critical, contamination-free requirements of high-speed PET film processing, coating, and lamination lines. Formulated via a monolithic molding process, the roller face is completely seamless and free of line streaks. Its outstanding elastomeric rebound property enables flawless deep-embossing performance and uniform cross-web nip pressure without structural sagging or chemical migration.

Engineered to optimize production throughput, the roller delivers exceptional release properties and non-stick performance, with surface roughness custom-tailored to provide a perfectly uniform matte finish on your films. Furthermore, its superior thermal conductivity and active anti-static defenses ensure rapid heat dissipation and eliminate electrostatic dust attraction, allowing processing lines to safely accelerate to maximum production velocities.

Technical Parameter

Product Framework: Seamless Liquid Silicone Rubber (LSR) Multi-Polymer Film Roller

Compatible Substrates: Premium TPU, PP (CPP/BOPP), High-Tack PVC, Optical PC, and PET Films

Surface Coating Matrix: Premium Platinum-Catalyzed Addition-Cure Liquid Silicone Rubber

Surface Topography: Monolithic Seamless Finish, Customizable Matte, Gloss, or Textured Roughness

Core Base Shaft: Forged 42CrMo Alloy Steel / Heavy-Wall Seamless Carbon Steel Core

Hardness Spectrum: 50 Shore A - 85 Shore A (Maintains precise symmetrical nip loading)

Thermal Operating Threshold: Outstanding operational stability from -50℃ up to +250℃ continuous

Radial Runout (TIR): ≤0.005mm (Achieved via synchronized microscopic cylindrical grinding)

Chemical Volatility: Zero Molecule Bleeding / Zero Silicone Oil Migration to Substrates

Electrostatic Resistance: Available with permanent active anti-static compounding (10^6 - 10^9Ω)

Applications

TPU Film Casting & Extrusion: Serving as the primary contact pressure roll against the main chill-roll for high-tack, stretchy TPU automotive protective films (PPF) and garment membranes.

PP (CPP/BOPP) Film Manufacturing: Delivering uniform, deflection-free nip contact in high-speed packaging film extrusion and laminating sections.

PVC Sheet Calendaring & Lamination: Providing exceptional release and anti-sticking performance during high-temperature PVC sheet embossing or multi-layer technical lamination.

Optical PC (Polycarbonate) Extrusion: Ensuring streak-free, ultra-flat surface tracking for high-definition PC electronic film applications requiring perfect clarity or uniform matte haze.

Why Choose AstraRoll's Liquid Silicone Rubber Roller?

Exceptional Non-Sticking Matrix & Custom Matte Texturing: Highly cohesive polymer melts like heated TPU and PVC easily stick and wrap around standard rubber rollers, leading to film tearing and ruined sheets. AstraRoll utilizes high-purity liquid silicone with an advanced low-surface-energy formulation that guarantees effortless release and zero sticky bonding. Furthermore, our surface profile can be custom-textured to match your precise roughness parameters, delivering a perfectly uniform matte finish across your entire production width.

Monolithic Seamless Casting for Streak-Free Substrates: Any joint line, pocket, or grinding streak on a silicone roller will transfer permanent cosmetic defects to high-clarity PC or soft TPU films. AstraRoll applies liquid silicone through a seamless, automated injection molding method that completely avoids layering. The resulting surface profile is completely homogeneous, guaranteeing a flawless, streak-free sheet appearance edge-to-edge.

Concurrent Grinding Architecture for Sub-Micron Precision (≤0.005mm Runout): At high extrusion velocities, even a minor variance in roller concentricity creates cyclic pressure waves, leading to uneven film thickness and tracking vibrations. We process our hardened 42CrMo cores and the silicone layer together using synchronized CNC cylindrical grinding machines. Restricting total indicator runout to ≤ 0.005 mm guarantees an ultra-stable nip profile and reliable film gauge control.

Permanent Static Dissipation & Superior Thermal Stability: High-velocity film webs generate massive friction, sparking severe static attraction that pulls in dust and risks fires. Instead of using short-lived surface spray treatments, AstraRoll blends conductive carbon-nanotube matrices directly into the liquid silicone mixture. This provides a continuous static dissipation path (10^6 - 10^9Ω) that never wears off, keeping your line safe and clean while accelerating heat dissipation for faster production speeds.

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.