Custom Industrial Adjustable Curved Banana Roller

Product Overview
The AstraRoll Custom Industrial Adjustable Curved Banana Roller is designed for continuous web handling applications where reliable spreading, wrinkle removal, and web separation are required. Also known as a Bowed Roller, Bow Roller, or Spreader Roller, it uses an adjustable curved geometry to guide the web outward across its width, helping eliminate wrinkles, reduce slack edges, and maintain a flatter, more stable web before downstream processing.

Unlike fixed-bow rollers, the adjustable design allows the curvature or bow position to be fine-tuned according to different web materials, widths, thicknesses, tension conditions, and processing requirements. This makes the roller suitable for production lines handling changing materials or different product specifications. Adjustable bowed rollers are commonly used for web spreading and slit separation in film, paper, textile, nonwoven, printing, coating, laminating, slitting, and rewinding applications.

AstraRoll supports non-standard customization of roller diameter, working width, shaft dimensions, bow configuration, adjustment mechanism, roller covering, mounting structure, and other application-specific requirements. Each roller can be configured around the customer's machine layout and web-handling conditions rather than being limited to a fixed standard design.

Technical Parameters
Product Framework: Industrial Adjustable Curved Banana / Bowed Roller

Primary Function: Web Spreading, Wrinkle Removal, Slack Edge Control, Slit Web Separation

Bow Configuration: Adjustable Curved / Bowed Structure

Bow Adjustment: Manual or application-specific adjustment mechanism

Roller Diameter: Customizable according to web width, line speed, and machine requirements

Working Width: Customizable to match the effective web width

Roller Covering: Rubber, synthetic rubber, or other application-specific surface options

Rubber Material: NBR, EPDM, or other suitable compounds according to operating conditions

Rubber Hardness: Customizable according to web material and required spreading effect

Shaft Material: Carbon Steel, Stainless Steel, Aluminum Alloy, or other specified materials

Shaft Dimensions: Customized diameter, length, bearing seats, threads, keyways, and end configurations

Mounting Configuration: Foot-Mounted, Flange-Mounted, or application-specific mounting structure

Surface Finish: Customized according to web material and process requirements

Bearing Arrangement: Application-specific bearing configuration

Overall Dimensions: Fully customizable for integration with existing machinery

Primary Applications & Industry Uses

Film & Flexible Packaging:
Helps flatten plastic films, control wrinkles, and maintain stable web movement during film processing, coating, laminating, slitting, and rewinding.

Printing & Converting:
Provides controlled web spreading before printing, coating, laminating, and other converting processes where wrinkles or uneven web alignment can affect finished quality.

Paper & Nonwoven Processing:
Used to improve web flatness and control slack edges during slitting, winding, rewinding, and continuous material handling.

Textile Processing:
Supports smooth handling of textile and flexible sheet materials by helping spread the web and reduce wrinkles before downstream operations.

Slitting & Rewinding:
The adjustable bow can be configured to improve separation between slit webs, helping reduce interleaving and maintain more stable winding conditions.

Why Choose AstraRoll's Adjustable Curved Banana Roller?
Adjustable Bow for Changing Web Conditions
The adjustable curved structure allows the spreading effect to be fine-tuned instead of relying on a fixed bow. This is particularly useful when the same production line processes different web widths, materials, or thicknesses.

Effective Web Spreading and Wrinkle Removal
The curved roller geometry creates a transverse spreading effect as the web passes over the roller, helping open wrinkles, reduce baggy areas, and improve web flatness before the next processing stage.

Suitable for Slit Web Separation
For slitting and rewinding applications, adjusting the bow can help control the spacing between slit webs and reduce the risk of interleaving during winding.

Application-Specific Roller Coverings
The roller surface can be configured according to the web material and operating environment. Rubber coverings such as NBR or EPDM can be selected where appropriate, while other surface solutions can be considered for specific temperature, chemical, friction, or non-stick requirements.

Non-Standard Dimensions and Mounting
AstraRoll manufactures the roller according to the customer's required working width, roller diameter, shaft dimensions, mounting arrangement, and machine space. This makes the Banana Roller suitable for replacement projects as well as new equipment integration.

Built Around the Complete Web-Handling Process
The correct bow configuration depends on factors such as web material, width, thickness, tension, wrap arrangement, and machine layout. AstraRoll can customize the roller structure and adjustment configuration around these operating conditions rather than supplying a one-size-fits-all roller.

Q1. Are you a trader or direct factory?

We are a direct manufacturing factory with over 20 years of expertise in high-end industrial rollers, casters and material handling solutions. Our facility operates with ISO-certified quality management systems, allowing us to maintain full control over production cycles and quality standards. Throughout two decades of growth, we have established deep, long-term strategic partnerships with several listed companies and global automation leaders, proving our reliability as a high-tier industrial supplier.

Q2. What are your main products?

AstraRoll specializes in the engineering and production of three core product lines: Industrial Rollers, Heavy-Duty Wheels, and Precision Casters. We do not just sell components; we provide integrated movement and transport solutions. Our products are widely utilized across high-demand sectors, including: New Energy, Lithium Battery, Mining, Heavy Industry, Medical Institutional, Agriculture and Logistics.

Q3. What about delivery time?

We deeply understand that project timelines are critical.
Standard Products: Usually dispatched within 7–15 working days if the components are in stock.
Customized/OEM Orders: Depending on the complexity and volume, the lead time typically ranges from 20–35 days. This includes time for technical drawing confirmation, specialized tooling, and rigorous pre-shipment testing.
Shipping Methods: We offer flexible global logistics solutions, including FOB and CIF terms. We ship via Sea Freight (for bulk industrial orders), Air Freight (for urgent project needs), and International Express (DHL/FedEx/TNT) for smaller components or samples.

Q4. How can I get a quote for customized products?

Since a significant portion of our business involves specialized engineering, pricing is tailored to your specific technical requirements. To provide an accurate quote, please provide the following details: Technical Drawings or Sketches, Application Environment, Quantity, Special Requests. Our engineering team typically reviews and responds to custom inquiries with a formal quotation within 24–48 hours.

Q5. What is your payment?

TT / Paypal / Western Union / LC / Credit Card etc. are all available to us.