Hard Chromium Plated Cooling Rolls For Plastic Sheet Extrusion Processes
Plastic sheet production requires extensive cooling. As extruded sheets exit the heated chamber and die, the plastic retains most of its heat due to poor thermal conductivity. Double shell heat transfer rolls efficiently draw heat away from the hot plastic sheet. By guiding the sheet in an "S" pattern through three to five chill rolls (horizontal or vertical orientation), the temperature is reduced to optimal levels. The quality of these chill rolls directly impacts sheet thickness, surface texture, and gloss finish.
Custom Plastic Cooling Roll Finishes
Plastic extrusion cooling rolls must provide efficient heat transfer while maintaining structural integrity. They are fabricated with hardened base metal to resist "worm tracking" and other deformation risks during operation.
Roll Technology supplies heat transfer rolls in various sizes with fully customizable surface finishes to meet specific requirements. Industry-standard options include flawless optical mirror finishes (0~1 Ra) and textured surfaces (matte and satin) with varying roughness levels.
Plastic Cooling Roll Solutions
Our engineering solutions address critical factors including deflection, fluid flow, thermal expansion/contraction, final geometry, and other design parameters. We collaborate with your engineering teams to provide:
- Comprehensive range of roll diameters and face lengths
- Mono-flow or dual-flow heat transfer designs
- Precision finishing to exact specifications
- Bearing selection and installation for tight tolerance requirements
- Convex, concave, or ultra-flat finishing options
Available surface finishes:
(View all finishes)
- Flawless pit-free optical mirror
- Fine, medium or coarse dull, gray matte surfaces
- Fine, medium or coarse pre-blasted satin surfaces
- Commercial polished surfaces (4-16 Ra)
Global manufacturers rely on Roll Technology's expertise to solve complex web processing challenges.
| Roll body material |
45# seamless pipe or alloy steel |
| Temperature difference |
≤0.5 degrees |
| Hardness after chrome plating and polishing |
HRC62 |
| Surface roughness |
Ra0.01 |
About Huatao Group
Founded in 2008, Huatao Group is a leading manufacturer of industrial rollers with 15+ years of experience serving paper, corrugated board, rubber & plastic, and nonwoven fabric industries. Our products are exported to 96+ countries with excellent reputation.
Product Applications:
- Paper Industry: Forming rollers, vacuum couch rollers, press rollers, dryer cylinders, calender rollers
- Plastic & Rubber: Chill rollers, MDO rollers, cooling rollers, corona treatment rollers, embossing rollers
- Nonwoven Fabric: Cylinder rollers, doffer rollers, guide rollers, embossing rollers
We specialize in matching customer requirements with optimal manufacturing solutions, ensuring superior quality and reliable performance. Our commitment to innovation and customer satisfaction makes Huatao Group a trusted global partner.
