Huatao Group Chill Roll

Huatao Group chill roll stands at the pinnacle of web-handling and thermal-control technology. It addresses the most critical challenge in plastic film extrusion: achieving uniform and instantaneous cooling of the molten polymer web to establish excellent mechanical properties and high clarity.

Key Features

Advanced Duo-Flow Structure: The double-shell internal channel design forces the cooling medium into a high-velocity turbulent flow, creating cross-current thermal distribution that balances temperature differences instantly.

Anti-Condensation Reliability: Operates precisely above the dew point temperature, avoiding local water droplets that cause cosmetic surface blemishes or structural bubbles on the film.

Extreme Geometric Precision: Outstanding coaxiality, cylindricity, and straightness control (≤0.01mm) eliminate high-speed vibration and maintain perfectly uniform web tension.

Ultra-Mirror Hard Chrome Plating: Superior wear resistance (≥HRC 62) and low friction coefficients guarantee scratch-free production over extended operating lifespans.

Technical Specifications Table

Technical Parameters

Specification Range / Value

Coaxiality / Cylindricity

≤ 0.01 mm

Straightness

≤ 0.01 mm

Surface Temperature Difference

≤ ±0.5 ℃

Chromium Plating Layer Thickness

≥ 120 μm

Chromium Plating Surface Hardness

≥ HRC 62

Surface Roughness

Ra ≤ 0.005 μm (Super Mirror Finish)

Processing Range Capability

Max Diameter: 3000 mm / Max Length: 12000 mm

Available Base Materials

Stainless Steel, Low-Carbon Steel, Medium Carbon Steel, Alloy Steel

Target Applications & Industry Scenarios

This high-precision chill roll is universally compatible with global mainstream film casting and biaxial stretching machinery, specifically optimized for:

BOPP & BOPET Lines: High-speed packaging film lines requiring exact crystallinity and thickness uniformity.

CPP & CPE Cast Film Lines: Food and medical-grade packaging films demanding premium transparency and flawless optical properties.

Lithium Battery Separator Film: Critical wet or dry process separator production requiring ultra-precise micro-temperature mapping.

Extrusion Coating & Lamination: Industrial multi-layer composite structures and protective film processing.

Frequently Asked Questions

Q1: How do you achieve a surface temperature tolerance of within ±0.5°C?

A1: We utilize advanced CFD (Computational Fluid Dynamics) to design custom internal double-shell spiral channels. This creates optimal turbulent fluid speed and balanced counter-flow heat exchanges to lock the temperature range.

Q2: Can you manufacture replacement rollers based on our existing machine OEM drawings?

A2: Yes. We can produce customized rolls exactly according to your blueprint engineering drawings, or re-engineer the flow paths based on your line speed and polymer specifications.

Corporate Strength & Manufacturing Capability

Huatao Group as a premier global leader in web-handling and processing roller technology, the manufacturing excellence and field-tested reliability speak for themselves. Today, we proudly serve as the trusted partner and supplier to more than 40 large-scale BOPP and BOPET film production enterprises worldwide. This proven track record underscores our unique ability to meet the most stringent industrial demands for extreme line speeds, massive cross-widths, and 24/7 continuous high-load stability.

Our state-of-the-art manufacturing facility houses heavy-duty CNC cylindrical grinding machines, high-speed dynamic balancing rigs, and advanced fully automated vertical electroplating lines, capable of processing custom rollers up to Ø3500mm in diameter and 12000mm in length. Backed by robust hydrostatic and laser geometric validation systems, we guarantee that every roll delivered delivers peak performance, allowing modern film production lines to operate with absolute confidence.