Calenders, Nips & Heat Transfer Systems for Precise Web Processing
Calendering, nip control, and precision heat transfer are core to roll‑to‑roll manufacturing. Whether you process films, foils, paper, nonwovens, or specialty composites, the right combination of calender rolls, nip assemblies, heated/cooled rolls, and preheat/post‑cool stations drives thickness uniformity, adhesion, surface finish, and line speed—while minimizing scrap.
Thermal & Pressure Control for Precision Web Processing
When it comes to calenders or nips, Modular Web Solutions engineers can address your load or pressure requirement, meet your roll or web specification and provide precision gap control using integrated control systems. The science of heat transfer is at the core of Modular Web Solutions' technical expertise. Proprietary software helps us determine exact roll sizing and stand design to achieve heating or cooling within ±1º F. In addition, we can deliver a complete solution, including plumbing, drives, heating/cooling systems and integrated controls.
Integrated Components in Calendering & Heating Solutions
Calenders
Systems are precision-engineered solutions used to modify the physical properties of web materials through controlled heat and pressure. These systems feature high-pressure roll configurations—available in vertical or horizontal nip arrangements—with advanced nip gap control for uniform thickness and surface finish. Ideal for applications such as smoothing, compacting, laminating, and thermal bonding, calenders can process a wide range of substrates including paper, film, nonwovens, rubber, textiles, and specialty composites. Equipped with servo-hydraulic positioning, roll skewing, and thermal oil or induction-heated rolls, these systems deliver micron-level accuracy and consistent performance at high line speeds. Optional integrations like mass gauges enable closed-loop thickness control, making calender systems a critical component in achieving high-quality, high-volume output in modern converting lines. Specifications Web Widths: Up to 20' wide Roll heating/cooling Water, Oil, Electric Nip Pressure: Up to 2500 PLI Plus
Accunips
Accunips are a legacy product line from the merger of Magnet-Fairview. They are a more cost-effective nip roll station. Accunips can be manufactured with various roll and nip control systems. Single or dual roll drives and temperature controlled rolls.
Heat Transfer Systems
Heat Transfer Systems are engineered to apply controlled thermal energy to web materials for processes such as laminating, bonding, curing, or drying. These systems typically incorporate heated rolls, platens, or infrared elements to deliver consistent temperature profiles across the web, ensuring uniform treatment and high-quality results. Designed for integration into roll-to-roll converting lines, heat transfer stations can be customized for various substrates including films, foils, textiles, and composites. Advanced models offer zoned temperature control, precision nip pressure adjustment, and automated web handling features to optimize throughput and repeatability. Whether used for adhesive activation, surface modification, or thermal sealing, these systems provide reliable performance and energy-efficient operation tailored to demanding industrial applications. Specifications Widths: 10 in up to 20 feet Roll Diameters : 10 inches to 40 inches Web Speeds: up to 2500 ft/minKey Benefits of MWS Heat Transfer Systems
Choosing us means choosing a partner with:
- Deep technical expertise
- Custom-engineered solutions
- Proven performance across industries
- Robust automation and controls
- World-class support
- A long-term commitment to your success
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Precision Gap & Pressure Control
Modular Web Solutions can design and integrate nip gap controls from simple mechanical systems to fully automated systems with active feedback.
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Roll Deflection Mitigation
Modular Web Solutions can design deflection counter measures into nip stations, including pre-bending and crowned rolls.
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Thermal Engineering
Modular Web Solutions can design and integrate roll temperature control systems using water, oil, and electricity for heating and cooling webs.
Why Choose MWS for Heat Transfer Solutions?
Each industry demands unique substrate handling, tension profiles, and automation. We have been doing it for over 50 years and can customize a machine for your specific application and needs.
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