A Banana Roller (also known as a Bow Roll, Curve Bar Expander Roll, or Wrinkle Removing Roller) is used in film, laminates, textile, and paper processing lines to eliminate wrinkles and maintain smooth web flow.
This guide explains its working, types, applications, benefits, and what global buyers should check before purchasing.
1. What Is a Banana Roller?
A Banana Roller is a curved roller designed to:
- Spread the web evenly
- Remove wrinkles and creases
- Avoid baggy edges
- Improve web tension & alignment
- Enhance the quality of film, laminates, and fabrics
It is an essential component in web handling systems, especially where continuous material runs through multiple stages.
2. How a Banana Roller Works
- The web (film/paper/textile) enters the curved roller.
- The curvature gently stretches the material sideways.
- Wrinkles and slack edges are removed.
- Material exits smooth, evenly tensioned, and ready for the next process.
The roller does not damage the material — it spreads it naturally using controlled curvature.
3. What Are The Types of Banana Rollers
Different industries use different designs:
1. Rubber Banana Roller
- Gentle on delicate films
- Used for laminates, flexible packaging, paper
- Offers vibration-free operation
2. Polyband Expander Roller
- Ideal for sticky or sensitive materials
- Used in packaging and coating lines
3. Metallic Banana Roller
- Good for high-speed and heavy-duty applications
- Suitable for textile, nonwoven, and industrial materials
4. Adjustable Bow Roller
- Bow angle can be changed as per material type
- Best for multi-material production lines
4. Materials Supported with Banana Rollers
Banana Rollers are used for:
- BOPP
- PET
- CPP
- PVC
- PE Film
- Laminates
- Nonwoven
- Textile fabric
- Paper & board
- Coating and adhesive materials
5. Applications of Banana Rollers
Banana Rollers are widely used in:
- Printing machines (Gravure, Flexo)
- Slitter Rewinder Machines
- Lamination machines
- Coating & extrusion lines
- Textile processing machines
- Paper mills
- Winding & unwinding units
- Inspection rewinding machines
- Web guiding systems
6. Banana Rollers Guide for International Markets
🇺🇸 USA & Canada
Demand for high-quality wrinkle removal in high-speed lines.
Buyers expect stable, long-life rubber and precise bow adjustment.
🇪🇺 Europe
Focus on:
- CE-compliant manufacturing
- Smooth surface finishing
- High-precision bow control
- Compatibility with complex films and packaging lines
🇦🇪 Middle East (UAE, Saudi Arabia, Oman)
Machines must run smoothly in heat-intensive environments.
Metallic banana rollers with strong bearings are preferred.
Africa (South Africa, Kenya, Nigeria)
Converters require durable, low-maintenance rollers with simple operation.
🇧🇷 🇲🇽 🇨🇱 South America (Brazil, Mexico, Chile)
Industries prefer stable rollers for BOPP, PET, and laminated film processing.
This section signals to Google that the page is globally relevant, not country-stuffed.
7. Main Features of Banana Rollers
- Uniform wrinkle removal
- Smooth construction
- High-quality rubber coating
- Precise bow angle adjustment
- Strong journal and shaft
- Balanced design for vibration-free operation
- Long life and easy maintenance
- Custom-built sizes (length, diameter, curvature)
8. Buyer Checklist Before Ordering
Before buying a Banana Roller, check:
✔ Web width
✔ Type of material (film, textile, paper)
✔ Line speed
✔ Temperature conditions
✔ Rubber hardness
✔ Bow angle requirement
✔ Shaft and mounting type
✔ Custom sizes and load capacity
✔ Whether you need adjustable or fixed bow type
9. Prerequisites for Installation
To install a Banana Roller, ensure:
- Stable and aligned mounting points
- Clean and dust-free environment
- Correct bow angle setup
- Proper tension settings
- Smooth material entry path
- Operator understanding of bow adjustment
- Regular inspection of bearings and rubber surface
10. Benefits of Using a Banana Roller
- Removes wrinkles instantly
- Improves material quality
- Ensures smoother winding and slitting
- Reduces wastage
- Prevents baggy edges
- Enhances machine speed performance
- Improves final roll quality
- Works well with thin and thick materials
11. FAQs – Banana Roller
Q. What is the purpose of a banana roller?
- To remove wrinkles and improve web spreading in film, textile, paper, and laminates.
Q. Can the bow angle be adjusted?
- Yes, adjustable models allow precise control based on material type.
Q. How long does a banana roller last?
- With proper maintenance, it can last several years depending on usage.
Q. Which industries use banana rollers?
- Packaging, printing, textile, paper converting, lamination, coating, and slitting.
Q. Do banana rollers damage the material?
- No, they spread the material gently without causing surface damage.
12. Why KEW International for Banana Roller?
KEW International supplies export-grade Banana Rollers designed for consistent performance across global production lines.
We offer:
- Precision engineered bow rollers
- High-quality rubber coating
- Custom sizes
- International shipping
- Long-term reliability
- Support for all converting machines
13. Contact for International Inquiries
Looking for a high-quality Banana Roller for your production line?
We help global buyers select the right model based on material and machine design.
📩 Email: info@kewindia.com
📞 Call / WhatsApp: +91 8460728298
🌍 Export Worldwide | Fast Delivery | Custom Sizes Available