Custom Liquid Silicone Roller for PET Film Coating

The AstraRoll Custom Liquid Silicone Roller (LSR) represents the vanguard of elastomer technology designed explicitly for the hyper-critical, contamination-free requirements of optical PET film processing, continuous lamination, and technical coating lines. Engineered as a contact-critical component, it eliminates surface defects and optimizes material throughput by integrating three primary operational advantages:

• Exceptional Release & Tailored Matte Uniformity: Featuring superior non-stick properties and effortless release, the liquid silicone matrix can be custom-textured to match your precise roughness specifications. This delivers a perfectly uniform matte finish and stable haze control across the entire PET film surface.
• High Thermal Conductivity & Permanent Anti-Static Defenses: Optimized for rapid heat dissipation and active electrostatic dissipation, the roller effectively prevents static dust attraction and film cling. This thermal and electrical stabilization allows processing lines to safely accelerate to maximum production velocities.
• Seamless Surface with High-Elasticity Deep Embossing: Formulated via a proprietary 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.

Technical Parameter

Product Framework: Precision Liquid Silicone Rubber (LSR) Custom Structural Roller

Core Shaft Material: Premium Forged Alloy Steel (42CrMo) / Heavy-Wall Seamless Carbon Steel

Surface Elastomer: Ultra-Pure, Platinum Addition-Cured Liquid Silicone Rubber (LSR)

Chemical Migration: Zero Molecule Bleeding / Zero Silicone Oil Precipitation Guaranteed

Hardness Spectrum: 30 Shore A to 85 Shore A (Custom calibrated for nip profile consistency)

Geometric Precision: Radial Runout ≤0.005 mm, Concentricity ≤0.005 mm across full span

Surface Finish Roughness: Mirror Polished up to Ra 0.2μm / Matte finish option available

Thermal Operating Threshold: Outstanding operational stability from -50℃ to +300℃ continuous

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

Product Applications

Engineered for zero-defect fluid application and surface-critical substrate contact:

Optical Grade PET Film Extrusion: Installed at the casting or drawing phase of high-end PET, BOPET, and TAC lines to guide sheets without surface deformation or micro-marking.

Precision Coating Line Nipping: Ideal as a backing or impression nip roller for slot-die, comma, or anilox coating systems delivering adhesives or silicone release layers.

High-Speed Film Lamination: Providing uniform, deflection-free pressing for multi-layer film composite machinery handling sensitive electronics or solar materials.

Electronic Film Rewinding & Slitting: Eliminating static-induced dust attraction and film wrinkling directly before finished roll packaging.

Why Choose AstraRoll's Custom Liquid Silicone Roller?

Zero-Precipitation LSR Chemistry for Cleanroom Peace of Mind: Traditional milled rubber rollers dry out and bleed plasticizers or low-weight oils over time, creating foggy splotches on PET films that ruin adhesive bonding. AstraRoll utilizes premium, platinum-catalyzed addition-cure liquid silicone. Its perfectly balanced chemical grid contains no volatile oils or additives, ensuring your optical thin films pass through cleanroom processes with zero cosmetic or adhesive transfer defects.

Permanent Inline Anti-Static Matrix: Fast-moving PET films generate massive friction, building up static fields that attract airborne dust and cause shock risks. Our liquid silicone compounds are synthesized with advanced, permanently active carbon-nanotube conductive matrix elements. This maintains a steady electrical dissipation path (10^6 -10^9Ω) that never washes off or decays over time, keeping your production zone dust-free.

Sub-Micron Co-Grinding Precision (≤0.005mm Concentricity & Zero Banding): At high lamination or coating pressures, any slight eccentricity in the rubber surface causes cyclical pressure ripples, resulting in thickness bands in your adhesive coat. AstraRoll employs ultra-precise cylindrical grinders to finish the core and liquid silicone sleeve together in a single setup. Keeping total radial runout strictly under ≤0.005mm guarantees an unvaried cross-web nip print and flawless coating consistency.

Thermal Resiliency Up to 300℃ Without Dynamic Swelling: PET heating and drying zones expose nip rollers to severe ambient temperatures. Standard industrial plastics degrade, harden, or swell unevenly when heated, causing web tension spikes and tracking wrinkles. AstraRoll's liquid silicone maintains its elastomeric rebound profile and precise structural outer dimensions across an extreme temperature spectrum, dramatically extending your production interval between regrinds.

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.