High-Speed Three-Layer Kraft Paper Making Line
The three-layer paper machine is engineered for producing high-quality kraft liner, test liner, and white top board from recycled and virgin fiber blends. This paper mill machine features a hydraulic headbox system with dilution water control on each layer, ensuring excellent cross-direction basis weight uniformity and fine fiber distribution. The paper manufacturing line incorporates a three-wire forming section with extended wire lengths, which provides superior retention and formation while maximizing water removal before the press section.
A four-roll three-nip press arrangement with large-diameter rolls applies gentle yet effective dewatering, significantly reducing steam consumption in the downstream drying section. The paper making line also integrates a film transfer sizing machine with an air turn system, allowing precise starch application to both sides for enhanced surface strength. This industrial paper machine is designed for easy maintenance, with cantilevered wire changing, hydraulic loading for all press nips, and a rope-less tail threading system that minimizes paper breaks and boosts overall efficiency. For mills producing packaging grades, this complete paper mill line delivers consistent quality, high bulk, and excellent runnability.
Technical Data – Three-Layer Paper Machine
| Parameter | Specification |
|---|---|
| Paper Grade | Kraft liner, test liner, white top |
| Basis Weight Range | 45 – 150 g/m² |
| Net Paper Width | 5100 mm |
| Maximum Reel Width | 5260 mm |
| Wire Width | 5750 mm |
| Headbox Slice Width | 5600 mm |
| Operating Speed | 700 m/min |
| Design Speed | 750 m/min |
| Structural Speed | 850 m/min |
| Wire Section Lengths | 9 m + 10 m + 28 m |
| Press Configuration | Four rolls, three nips |
| Dryer Cylinders | 35 units of 1800 mm diameter |
| Vacuum Cylinders | 25 units of 1500 mm diameter |
| Dryness After Wire | 21 percent |
| Dryness After Press | 47 percent |
| Final Dryness | 92 percent |
| Sizing Application | Film transfer, 3 – 5 g/m² |
| Main Drive Power | 4609 kW |
Leizhan offers complete paper mill machinery solutions tailored to your specific raw materials and target grades. Our paper machine integrates proven technologies from forming to reeling, backed by decades of engineering experience. Whether you need a new paper making line or an upgrade to existing equipment, Leizhan provides full support including layout design, manufacturing, installation supervision, and commissioning. To learn more about our high-performance paper production equipment, please contact us at leizhanworld@gmail.com.