Jwell Chill Roller for BOPP/BOPET Film Casting Lines
High-precision chill roller for BOPP, BOPET, BOPA, BOPS and BOPI film casting, featuring ±0.5°C surface-temperature accuracy, efficient spiral-channel heat exchange and up to 20%–30% higher casting efficiency.
Roller Features
- Max diameter 1600mm
- Variable diameter alternating spiral flow channel
- Surface temperature precision±0.5℃
- High efficiency heat exchange technology performance
- High precision dynamic balancing correction
- High quality mirror face processing
- Anti-corrosion treatment of spiral flow channel
Application Scenarios
Product Description
A chill roller is a critical forming component for BOPP, BOPET, BOPA, BOPS and BOPI film stretching lines. Installed in the casting section, it rapidly removes heat from the polymer melt and helps form a stable master sheet before longitudinal or biaxial stretching. Because the accuracy of the cast sheet directly affects downstream film quality, reliable temperature uniformity, surface finish and rotational stability are essential.
JWELL’s chill roller uses a variable-diameter alternating spiral flow channel to improve internal circulation, heat-transfer efficiency and temperature-control response. The roller surface temperature can be controlled to an accuracy of ±0.5°C, supporting consistent cooling across the working face. According to the product data, upgrading to this roller design can increase casting efficiency by 20%–30%.
For stable high-speed operation, each casting roller receives high-precision dynamic balancing correction. Mirror-surface processing provides the smooth working surface required for demanding film applications, while anti-corrosion treatment protects the internal spiral flow channel. Rollers can be supplied with a maximum diameter of 1600 mm to match different film line layouts and process requirements.
This chill roller is suitable for the master casting stage of biaxial-oriented and longitudinal stretching lines. It is designed for film producers and equipment manufacturers seeking efficient heat exchange, precise surface-temperature control and dependable running performance. Contact JWELL with the required roller diameter, face length, operating speed, temperature-control medium and film-line application for a tailored technical proposal.
