Product Overview
The Fingerless Single Facer SF280 is a core machine used in corrugated cardboard production lines to manufacture single-face corrugated board. It corrugates the medium paper, applies starch adhesive to the flute tips, and laminates it with liner paper to produce high-quality single-face board for further processing.
Compared with conventional finger-type single facers, the fingerless design adopts a vacuum suction system to stabilize the corrugated medium during forming, helping maintain consistent flute profiles and stable board quality throughout production.
The SF280 is suitable for working widths from 1400 mm to 2200 mm and can be integrated into 3-ply, 5-ply corrugated cardboard production lines.
Key Features
- The fingerless design uses a vacuum suction system to stabilize the corrugated medium during forming, helping maintain consistent flute profiles and reliable board quality.
- The transmission reduction gearbox adopts an oil-immersed lubrication system, reducing operating noise and ensuring smooth, stable transmission.
- The machine adopts universal joint transmission with an independent drive system, providing reliable power transmission and stable operation.
- The corrugating rollers, pressure rollers, and glue rollers are all adjusted pneumatically, allowing convenient operation and stable pressure control.
- The bearings of the corrugating rolls and pressure rolls use high-temperature grease lubrication, helping reduce maintenance and improve bearing service life.
- The upper and lower corrugating rolls are manufactured from 48CrMo alloy steel. After heat treatment, the roll hardness reaches HRC58–60, and the surfaces are precision ground for stable corrugating performance.
- The glue unit adopts an automatic circulating glue supply system to maintain stable adhesive application during production.
- The glue application width can be adjusted electrically or manually according to the paper width, providing greater flexibility for different production requirements.
- The glue section can operate independently or stop separately when required, making cleaning and maintenance more convenient.
Technical Parameters
| Design speed | 100 m/min |
| Economic speed | 80 m/min |
| Effective width | 1400 mm-2200 mm |
| Corrugated roller flute | A/C/B/E/F or as your requirement |
| Max working steam pressure: | 1.0- 1.3 Mpa |
| Heating type | Steam, Electric or oil heating |
| Power requirements: | 380 V, 50 Hz or according to your requirement |
| Diameter of corrugated roller | 280 mm |
| Diameter of Press roller . | 285 mm. |
| Diameter of preheater roller | 300 mm |
| Diameter of Glue roller | 215 mm |
| Diameter of doctor roller | 105 mm |
Suitable Materials
The Fingerless Single Facer SF280 is suitable for processing various paper grades commonly used in corrugated board production, including:
- Kraft Liner Paper
- Testliner Paper
- White Top Liner
- Corrugating Medium Paper
The machine can produce different flute profiles depending on the installed corrugating rolls.
Applications
The Fingerless Single Facer SF280 is widely used in:
- 2 Ply Semi-auto Single Facer Corrugated Production Line
- 3 Ply Corrugated Cardboard Production Lines
- Corrugated Board Manufacturing Plants
- Corrugated Carton Factories
- Packaging Material Manufacturers
The single-face corrugated board produced by this machine is commonly used for manufacturing:
- Food Packaging
- Fruit Boxes
- E-commerce Cartons
- Industrial Packaging
- Consumer Goods Packaging
- Protective Packaging Materials
Working Process
The typical production process includes:
- Medium paper enters the corrugating section.
- The corrugating rolls form the required flute profile.
- Starch adhesive is applied evenly to the flute tips.
- The liner paper is bonded to the corrugated medium.
- The finished single-face corrugated board is conveyed to the bridge conveyor for further processing.
Frequently Asked Questions
What is a Fingerless Single Facer?
A Fingerless Single Facer is a machine used in corrugated cardboard production lines to produce single-face corrugated board by corrugating the medium paper and laminating it with liner paper.
What is the difference between a fingerless and a cassette type single facer?
A fingerless single facer uses a vacuum suction system to support the corrugated medium during forming, while a cassette type single facer features a quick-change cassette structure that allows faster replacement of corrugating rolls when changing flute profiles.
What paper grades can this machine process?
The machine is suitable for kraft liner paper, testliner paper, white top liner paper, and corrugating medium paper commonly used in corrugated board production.
What flute profiles can the machine produce?
The machine can produce different flute profiles depending on the installed corrugating rolls, such as A, B, C, E, or F flute.
Can the glue application width be adjusted?
Yes. The glue width can be adjusted either electrically or manually according to the production requirements.
