Overfeed Frame Rewinder in Corrugated Paper Mill
The overfeed frame rewinder is specifically designed for processing large diameter parent rolls from paper machines into finished rolls with precise width and consistent tightness. This paper mill machine features an innovative top overfeed system that ensures stable web transport and eliminates telescoping during high-speed rewinding. The overfeed frame rewinder incorporates a robust dual-support roller arrangement driven by a heavy-duty AC variable frequency drive, delivering smooth acceleration across a wide operating range.
A pneumatic braking system on the unwind stand maintains constant web tension throughout the roll diameter change, preventing wrinkles and breaks. The overfeed frame rewinder also includes a multi-blade slitting section with upper circular knives and a hardened bottom blade roll, allowing clean, burr-free cuts for packaging grades such as corrugated medium, kraft liner, and test liner. Hydraulic control of the nip load and a paper pushing device enable fully automated roll ejection, reducing cycle time. With its rigid frame construction designed for vibration resistance, this overfeed frame rewinder ensures years of reliable service in demanding mill environments. The emergency braking system provides rapid stopping capability, enhancing operator safety.
Technical Data – Overfeed Frame Rewinder
| Parameter | Value |
|---|---|
| Paper Types | Kraft paper, corrugated paper |
| Basis Weight Range | 60 – 300 g/m² |
| Net Paper Width | 2600 mm |
| Unwind Roll Diameter | 2000 mm |
| Finished Roll Diameter Max | 1500 mm |
| Working Speed | 600 m/min |
| Dynamic Balance Speed | 800 m/min |
| Core Inner Diameter | 76 mm |
| Slitting Knives | 4 sets |
| Maximum Tension | 1800 N/m |
| Main Motor Power | 45 kW |
| Bottom Roller Diameter | 500 mm |
| Bottom Blade Roller Diameter | 300 mm |
| Bottom Blade Width | 92 mm |
| Hydraulic Cylinder Stroke | 800 mm |
| Hydraulic Power | 2.2 kW |
Leizhan supplies the complete overfeed frame rewinder as a key component of your paper finishing line. Our overfeed frame rewinder integrates advanced tension control, precision slitting, and hydraulic automation to maximize throughput and minimize waste. Whether you produce corrugated medium, kraft liner, or test liner, Leizhan engineers an overfeed frame rewinder tailored to your roll diameter and speed requirements. For a custom quotation and technical consultation, please contact us at leizhanworld@gmail.com.