Today in any web handling system, precision and stability are fundamental to obtaining perfect results during printing, coating, or laminating. An important piece of equipment for smooth material flow and tension-free layout web is the Banana Roller, also known as the bowed roller or spread roller.
At KEW International, we manufacture and supply premier Banana Rollers designed to perform best in Slitter Rewinder Machines, Rotogravure Printing Machines, Flexo Printing Machines, Stenter Machines and other web converting equipment.
What Is a Banana Roller?
A Banana Roller is a special curved roller that is used to distribute tension while minimizing wrinkles in a moving web of materials (plastic film, paper, fabric, foil or BOPP). The gentle curve in the roller spreads tension across the web and removes all air bubbles during production.
How Banana Rollers Work
When the substitution of the web passes the curved geometry provides a lateral tension which acts on the edges of the web. The spreading of the material from the lateral tension will prevent wrinkles from happening, while keeping the substrate flat and aligned.
Materials and Construction
Banana Rollers are typically made of:
- Stainless Steel or Aluminum shafts for long life
- Rubber-coated or Hard Chrome-plated surfaces for grip
- Precision bearings for smooth rollers and performance
Significance of Banana Rollers in Web Handling Systems
1. Removal of Wrinkles and Flattening of Material
The main purpose of a Banana Roller is to eliminate wrinkles that form in flexible webs such as film, fabric, and paper. In situations with Slitter Rewinder Machines or Flexo Printing Machines, this helps achieve accurate slitting and perfect print quality.
2. Slitting Control and Alignment
Banana Rollers help to provide a consistent amount of web tension, and improved alignment in conjunction with a Hydro Pneumo Web Aligner System, thereby eliminating any web material waste, and increasing print registration.
3. Enhanced Web Tracking
Banana Rollers provide the most even spread of web, which is essential for web tracking in Rewinder Machines, Stenter Machines, BOPP Cutting Machines, and etc. This function helps operation run smoother, while minimizing downtime.
Applications of Banana Rollers
Banana Rollers are used in a variety of different industries, and different machines:
- Packaging Industry: Wrinkle free film application under circumstances such as Rotogravure Printing, and Slitter Rewinder Machines.
- Textile Industry: Used in Stenter Machines, for uniform stretching of fabric.
- Paper & Plastic Film Industry: Smooth feed of material in BOPP Cutting Machines, and Rewinder Machines.
- Converting & Coating Applications: Used to deliver consistent coatings, or lamination.
Advantages of KEW International Banana Rollers
- Accurate bow adjustment generates the precision you need to remove wrinkles
- Custom-built designs available for different widths and materials
- Durably constructed and designed for low maintenance
- Compatible with any printing and converting machinery
- Provides results in International flexible packaging industries
Compatibility with Additional KEW International Machines
KEW International provides complete web handling solutions to supplement the Banana Rollers, including:
- Slitter Rewinder Machine creates precise slitting of materials
- Rotogravure Printing Machine provides high-quality printing of flexible packaging
- Flexo Printing Machines ideal for printing multi-color jobs
- Core Cutter Machine provides precise core preparation
- Hydro Pneumo Web Aligner System to automatically corrected web
With Banana Rollers installed in one of these machines, you will achieve seamless material flow, generated material waste reduction, and increase production efficiencies.
Why Working with KEW International
From decades of industry knowledge, KEW International is setting the standard for operating web handling and converting machinery. We stand for innovation, reliability, and after-sale service. Banana Rollers and partner banner machines are trusted all over the world for high-performance and durability.
For equipment and related spare parts, please contact:
🌐 www.kewinternational.com
📞 +91-8460728298
📧 info@kewindia.com
Commonly Asked Questions about Banana Rollers
Q1. What do Banana Rollers do?
Banana Rollers are a method of preventing wrinkles, and help ensure even tension while handling web, continuous processes, such as printing, coating, and slitting.
Q2. Where would Banana Rollers be applied?
They would be placed in Slitter Rewinder Machines, Rotogravure Printing Machines, Flexo Printing Machines, Stenter Machines, and BOPP Cutting Machines.
Q3. What are Banana Rollers made of?
Banana Rollers would generally be made of aluminum or stainless steel and could have coatings like rubber or hard chrome in order to provide a longer last time and added grip.
Q4. What is the benefit of Banana Rollers in combination with Web Aligners?
When used with Hydro Pneumo Web Aligner Systems, banana rollers aid in better web alignment and help to minimize slack and edge control.
Q5. Why do industry professionals recommend KEW International Banana Rollers?
KEW International offers trusted, industry standard, precision Banana Rollers, custom manufactured design, built to last in a variety of web applications.
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