High Precision Casting Roll for Plastic Coiled Material

This industrial-grade High Precision Casting Chill Roll is specifically engineered for modern, high-speed, and large-tonnage plastic coiled film extrusion equipment. Distinct from standard transport rollers, the casting roll plays a decisive role in defining the final film's optical and physical properties. Designed based on rigid heat-transfer thermodynamic models, the roll body is fabricated from forged alloy steel or thick-walled seamless tubes. Featuring integrated internal cooling channels paired with an ultra-mirror hard chrome plate, it yields peak quenching efficiency while perfectly replication the desired surface structure, serving as the ultimate solution to boost throughput and eliminate residual thermal stresses in film lines.

Technical Parameter

Concentricity(static run out): ≤0.03mm

Temperature difference on roll face: ≤1 degree

Roughness on roll surface: Ra 0.2-0.8μm, matt finish surface

Surface treatment: Durionising (Plating Thickness ≥0.12mm)

Max dimension: φ1600*5400mm

Application Industrial

Delivers irreplaceable primary cooling and shaping control for high-precision plastic extrusion systems:

Food Packaging Lines (CPP/CPE): Production of high-transparency retort pouches, lamination base materials, and high-barrier fresh-keeping wraps.

Photovoltaic & New Energy Materials (EVA/POE/PVB): Quenching of solar cell encapsulation films and automotive explosion-proof safety glass interlayer sheets.

Hygienic & Medical Films: Precise thickness and structure control for medical infusion bags, breathable backsheets, and high-end personal care packaging.

Functional Stretched Films (BOPET/BOPA): Primary cast sheet formation within sequential or simultaneous biaxial stretching lines.

Why Choose AstraRoll's High Precision Casting Roll?

Advanced Double-Helix Internal Flow Design: High-speed CPP/CPE extrusion requires instantly stripping away massive thermal energy. AstraRoll utilizes advanced thermal-simulation software to engineer precision double-helix internal cooling channels. This directs cooling water symmetrically across the entire roll face, maintaining a temperature variance of less than ±0.5℃ to completely eliminate localized film wrinkling or structural gauge bands.

Ultra-Mirror Ra≤0.01μm Grinding Technology: Any microscopic surface imperfection on a chill roll replicas directly onto the plastic coiled material. Our specialized finishing facilities employ multi-stage diamond-paste micro-grinding to achieve a flawless ultra-mirror finish Ra≤0.01μm, giving your films crystal-clear transparency, impeccable gloss, and zero fisheyes.

High-Hardness Chrome Coating for Extended Lifespan: Constant friction against hot polymeric melts and high-pressure cleaning blades wears out standard rollers. AstraRoll applies a uniform, dense electroplated hard chrome matrix ≥HRC 60. It easily resists severe thermal shock, corrosion from chemical polymer outgassing, and mechanical abrasion, guaranteeing years of trouble-free continuous operation.

Millimeter-Perfect Gauge Consistency: High radial runout leads to cyclical thickness variations in plastic films, causing severe downstream rewinding or printing defects. Our casting rolls are machined on premium heavy-duty CNC lathes and dynamically balanced to G2.5 standards, limiting runout to ≤ 0.005mm to ensure uncompromised film gauge profiles across maximum web widths.

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.