Roll to Roll Unwinding & Rewinding Machine

Automatic Film Inspection, Tension Correction and Rewinding Solution

In flexible packaging and plastic film production, roll quality directly affects printing, slitting and bag making performance.
The Roll to Roll Unwinding & Rewinding Machine, also known as a Doctoring Machine, is designed to inspect, correct and reprocess film rolls by precisely unwinding and rewinding them under controlled tension and alignment.

At Eles Machinery, our doctoring machines are engineered to deliver perfectly wound rolls, eliminate defects and improve downstream production efficiency.

What Is a Roll to Roll Unwinding & Rewinding Machine?

A Roll to Roll Unwinding & Rewinding Machine (Doctoring Machine) is an industrial system used to:

• Unwind existing film rolls

• Inspect the film surface

• Correct tension and edge alignment errors

• Remove defective sections

• Rewind the film into a high-quality, uniform roll

These machines are widely used in flexible packaging, plastic film extrusion, printing, laminating and converting industries where consistent roll quality is critical.

Key Features of Eles Machinery Doctoring Machine

✔ Fully Automatic Unwinding & Rewinding

The machine performs automatic web unwinding and rewinding, ensuring smooth film handling and stable operation throughout the process.

✔ Tension Error Correction

If the incoming roll has uneven or incorrect tension, the system automatically adjusts and corrects it during rewinding, producing a perfectly tension-balanced roll.

✔ Edge Alignment Correction

For rolls with poor edge profile or misalignment, the machine corrects the edge position to ensure:

• Clean roll edges

• Uniform winding structure

• Improved performance in downstream machines

✔ Start / Stop Operation Capability

The operator can stop and restart the machine at any point without film damage, tension loss or roll deformation.

✔ Pneumatic Film Locking & Cutting Unit

Located after the unwinder section, this unit allows operators to:

• Pneumatically lock the film

• Cut and remove defective film sections

• Rejoin the film safely and quickly

This feature is ideal for eliminating:

• Wrinkles

• Printing defects

• Holes

• Contamination or damaged areas

✔ Optional Tension Control Systems

Depending on production requirements, the machine can be equipped with:

• Pneumatic tension control, or

• Load-cell based closed-loop tension control

Both options ensure precise and stable tension management during rewinding.

✔ Customizable Working Width

The working width is custom-designed according to:

• Film roll width

• Roll diameter

• Production line requirements

This allows seamless integration into existing operations.

✔ High-Performance Drive Options

• AC motor drive supports roll diameters up to 300 mm

• Servo motor drive option is available for:

  • Larger roll diameters

  • Higher precision

  • Advanced speed control

This ensures perfect rewinding quality even at high production speeds.

Advantages of Roll to Roll Doctoring Machines

Using a roll to roll unwinding & rewinding machine provides significant operational benefits:

• Corrects tension and edge alignment errors

• Removes defective film sections efficiently

• Improves roll quality for printing, slitting and bag making

• Reduces material waste and rework

• Enhances overall production efficiency

• Customizable design for any film type or roll size

• Safe operation with low maintenance requirements

Applications of Doctoring Machines

Roll to roll unwinding & rewinding machines are suitable for:

• Flexible packaging manufacturers

• Plastic film extrusion lines

• Printing and laminating lines

• Slitting and converting operations

• Quality control and inspection departments

They are an essential solution for maintaining consistent, defect-free film rolls.

Why Choose Eles Machinery?

• ✔ Over 20 years of experience in plastic packaging machinery

• ✔ Manufacturer and global exporter

• ✔ Custom-engineered doctoring solutions

• ✔ Strong technical and after-sales support

• ✔ Reliable performance in demanding industrial environments

At Eles Machinery, we focus on precision, reliability and long-term production efficiency.

Request a Quotation for Roll to Roll Unwinding & Rewinding Machines

If you are looking to improve film roll quality, tension control and inspection processes, contact Eles Machinery for a customized solution.

🌐 Website: https://www.elesmakina.com
📧 E-Mail: info@elesmakina.com
📱 WhatsApp: +90 532 223 57 31