Paper Winder

Paper Winder

Paper winder is la kind of paper winding machine in paper making mills. It is usually located at the end of the paper machines and is used to make the produced paper into finished rolls. The performance of the paper winder will affect the tightness and quality of paper roll directly, and influence the storage and subsequent processing performance of the roll.

At present, the most commonly used machine is a horizontal cylinder winder. It consists of a paper roll cylinder, double support rods, paper rolls, etc. The paper roll cylinder is an active cylinder whose speed is the same as or slightly faster than that of a paper machine. The paper roll is used to drive the roll by the friction between the roll and the cylinder. The paper roll cylinder is generally filled with cold water to cool the paper sheets and eliminate static electricity, so it is sometimes called “cold cylinder winding”.

On a cylinder winder, the tightness of the roll depends on the pressure between the roll and the cylinder. The brackets on both sides of the cylinder are provided with a pressure regulating screw, which can make the journal of paper roll move back and forth, and adjust the pressure of the roll on the cold cylinder, so as to keep the pressure of the roll and the cylinder uniform. Most of new paper machines use pneumatic pressurizing and retracting devices. By operating the control box to control the air pressure of the jib and main arm, the line pressure between the roll and the cylinder can be adjusted to make the paper rolled down by the paper machine to paper roll with uniform tightness.

The performance of the paper winder has a great impact on the quality of the paper roll. If the paper roll is too loose, it will get deformed easily during storage and lose original cylindrical shape. Due to uneven rotation, the vibration and tension of the roll will be inconsistent, increasing the breakage of the paper sheet. If it is rolled too tightly, it will break due to the reduced elasticity of the paper. In addition, the quality of the roll paper is not good, and there are paper problems such as folds, which affects the quality of the paper sheet and the output of the paper machine.

The status of the paper roll machine is also increasing. The paper winder is the first complete equipment after the paper machine. It is a paper making equipment, which belongs to the category of equipment accessories. It relies on the weight of the roll and the friction of the cold cylinder to drive the paper under the roll to be evenly wound. Therefore, the roll makes the paper more uniform and can meet the needs of different papers.

paper winder

Main technical parameters

Model ZSJ17-1760 ZSJ23-2362 ZSJ26-2640 ZSJ28-2850 ZSJ32-3200 ZSJ36-3600 ZSJ36-4400
Net Paper Width (mm) 1760 2362 2640 2850 3200 3600 4400
Paper Width (mm) 1810 2412 2690 2900 3250 3650 4450
Max. Diameter of Paper Roll 1600mm-2500mm
Working Speed 500m / min
Roll Pressure 3-4 (N/mm)
Gauge (mm) 2900 3500 3800 3990 4800 5200
Paper Weight 30-650 (g/m2)
As a leading paper making equipment manufacturer, AGICO can provide you with high quality paper winding machine and relevant information about paper winder in details.

Pulp is a lignocellulosic fibrous material prepared by chemically or mechanically separating cellulose fibres from wood, fiber crops, waste paper, or rags. Many kinds of paper are made from wood with nothing else mixed into them. This includes newspapers, magazines and even toilet paper. Pulp is one of the most abundant raw materials.

A pulp mill is a manufacturing facility that converts wood chips or other plant fibre source into a thick fibre board which can be shipped to a paper mill for further processing. Pulp can be manufactured using mechanical, semi-chemical or fully chemical methods (kraft and sulfite processes). The finished product may be either bleached or non-bleached, depending on the customer requirements.

A paper machine (or paper-making machine) is an industrial machine which is used in the pulp and paper industry to create paper in large quantities at high speed. Modern paper-making machines are based on the principles of the Fourdrinier Machine, which uses a moving woven mesh to create a continuous paper web by filtering out the fibres held in a paper stock and producing a continuously moving wet mat of fibre. This is dried in the machine to produce a strong paper web.

The pulp produced up to this point in the process can be bleached to produce a white paper product. The chemicals used to bleach pulp have been a source of environmental concern, and recently the pulp industry has been using alternatives to chlorine, such as chlorine dioxide, oxygen, ozone and hydrogen peroxide.

Chemical pulp is produced by combining wood chips and chemicals in large vessels called digesters. There, heat and chemicals break down lignin, which binds cellulose fibres together, without seriously degrading the cellulose fibres. Chemical pulp is used for materials that need to be stronger or combined with mechanical pulps to give a product different characteristics. The kraft process is the dominant chemical pulping method, with the sulfite process second. Historically soda pulping was the first successful chemical pulping method.