5100mm High-Speed Kraft Paper Machine
The modern kraft paper machine is engineered specifically for producing high-performance packaging grades such as kraft liner, test liner, and white top board. This paper mill machine features a hydraulic headbox on each of its three independent wires, allowing precise fiber layering and outstanding ply bonding. The kraft paper machine’s extended forming section maximizes water removal before the press, reducing steam demand in the drying section.
A four-roll three-nip press arrangement with large-diameter rolls applies gentle dewatering, preserving fiber length and sheet bulk. The kraft paper machine also integrates a film transfer sizing station with an air turn system, ensuring uniform starch application for superior surface strength. Designed for continuous operation, this kraft paper machine includes a rope-less tail threading system across the dryer section, minimizing paper breaks and boosting overall efficiency. With robust construction and easy maintenance features such as cantilevered wire changing and hydraulic loading, this kraft paper machine delivers consistent quality for demanding recycled and virgin fiber blends.
Technical Data – Kraft Paper Machine
| Parameter | Value |
|---|---|
| Product Grades | 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 |
| Working 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 |
| Press Roll Diameters | 1320 / 1300 / 1500 / 1500 mm |
| Dryer Cylinders | 35 units of 1800 mm diameter |
| Vacuum Cylinders | 25 units of 1500 mm diameter |
| Dryness Out of Wire | 21 percent |
| Dryness After Press | 47 percent |
| Final Paper Dryness | 92 percent |
| Theoretical Capacity | 514 tons per day |
Leizhan supplies complete kraft paper machine solutions tailored to your raw materials and target basis weights. Our kraft paper machine integrates advanced forming, pressing, and drying technologies to maximize fiber utilization and minimize operating costs. From engineering design to installation supervision and commissioning, Leizhan provides full project support. To learn more about our kraft paper machine and other paper making line equipment, please contact us at leizhanworld@gmail.com.