Frame Rewinder for Kraft Paper Making Line
The paper mill plant machinery described here is a 3400 mm top‑feed rewinder engineered for efficient converting of medium‑weight papers (110‑120 g/m²). Its robust frame construction – front and rear box‑type welded steel frames with tempered crossbeams – ensures rigidity at speeds up to 600 m/min and dynamic balance at 800 m/min. The paper manufacturing machine features an unwinding stand with manual lateral and longitudinal adjustment to keep the web centered, plus a pneumatic brake that uses circulating water to cool the brake wheel, extending component life. The paper production equipment also includes a multi‑segment arc roller for spread control, three guide rollers (Φ216 mm), and a hydraulically loaded bottom knife roll that maintains consistent nip pressure throughout the rewinding cycle.
The paper industry machinery uses a 55 kW AC variable frequency drive with a dedicated reducer and 55 kW inverter, giving smooth acceleration and precise speed regulation. A hydraulic station (2.2 kW motor) simultaneously controls four cylinders: two for paper roll lifting and two for pushing finished rolls off the support rolls. The slitter section allows easy blade positioning via a T‑type beam, and the circular knives can be quickly re‑indexed to fresh bottom knife edges – the bottom roll provides ten usable cutting stations, drastically reducing downtime for blade changes. All bearings are high‑quality Oude or Wafangdian, and the main support rolls (Φ500 mm) are dynamically balanced at 800 m/min to eliminate vibration.
Key Components of Our Paper Processing Line
Main drive: 55 kW 4‑pole motor + reducer + inverter, soft start and stop
Hydraulic system: 2.2 kW power unit, four cylinders (lifting, pushing)
Slitter: 5 upper blades (Φ150 mm, tool steel) + bottom knife roll (Φ300 mm, 10 edges)
Brake: Dual air‑tire pneumatic brake with cooling water jacket
Rollers: Two support rolls (Φ500 mm), two guide rolls (Φ216 mm), one arc roll (Φ175 mm chrome plated)
Frame: Welded steel with cast iron guide rails, factory pre‑assembled to reduce site error
We supply a turnkey paper production line including the rewinder, full electrical controls, hydraulic station, and detailed installation instructions. Our pre‑assembly service ensures that critical alignments are factory‑set, so your paper making line starts up faster and operates reliably. Contact Leizhan today to equip your mill with this efficient, easy‑to‑operate rewinder and benefit from our global support network. Email leizhanworld@gmail.com.
