What is a kraft paper slitting and rewinding machine?

It is a specialized device that slits large rolls of kraft paper (also known as master rolls or jumbo rolls) into multiple smaller rolls of a specified width.

It is widely used in the packaging and printing industries and is a key piece of equipment in post-processing of paper products.

A modern kraft paper slitting and rewinding machine typically possesses the following core functions, which are also key considerations when

selecting a model:

1. Tension Control:

Employs an automatic tension control system, adjusting in real-time via a servo motor or magnetic powder brake to ensure

constant paper tension during acceleration, deceleration, and constant speed operation, preventing breakage or wrinkling.

2. Correction System:

Equipped with an ultrasonic or photoelectric correction system, automatically detecting and correcting the edges of the paper

roll during unwinding to ensure neat end faces after slitting.

3. Slitting Method:

The most common method is circular blade shearing, suitable for materials such as kraft paper, ensuring smooth, burr-free edges.

The material and precision of the blade shaft (e.g., whether bearing steel is used) directly affect the durability of the cutter and the slitting quality.

4. Control System:

Utilizes a PLC programmable controller paired with a touchscreen human-machine interface, allowing preset parameters

such as slitting width, length, and tension, and implementing functions such as automatic meter counting and alarm for stopping after reaching a certain count,

making operation convenient.

5. Automation level:

From semi-automatic to fully automatic, with optional functions such as hydraulic automatic feeding, automatic unloading,

and automatic waste discharge, which can significantly improve production efficiency and reduce labor costs.