| Machine manufacturer | Bobst |
| Model |
Rotoextruder 400F For extrusion coating and laminating |
| Year | 2018 |
| Layers | 3 |
| Diameter screw(s) | 100 mm - 80 mm |
| L:D ratio screw(s) | 30D |
| Max. web width | 650 - 1700 mm |
| Type of winding | Automatic turret |
| Unwind type (1) | Automatic turret |
| Max. unwind reel diameter (1) | 1000 mm mm |
| Unwind type (2) | Automatic turret |
| Max unwind reel diameter (2) | 1000 mm mm |
| Materials |
From primary unwinder: BOPP 15 – 50 µm PET 12 – 50 µm PA 23 – 100 µm OPA 15 – 50 µm PE 35 – 100 µm Paper 40 – 100 g/m2 Lamination materials 50 – 140 g/m2 For unwinder no 2 Alu foil 6 – 20 µm BOPP 15 – 50 µm PET 12 – 50 µm PE 35 – 100 µm |
| Die width | 1700 mm |
| Type of screenchanger | Hydraulic |
| Type of dosing unit | Gravimetric, Doteco |
| Thickness measurement | Yes |
| Web guide(s) | Yes |
| Corona treater | Yes |
| Inline slitting | Yes, with edge suction |
| Other information |
Coating unit: Water based primer coating Rotogravure |
| Available from | Now |
| Machine can be seen in production | Yes |
| Speed | 400 m/min |
The Bobst Rotoextruder 400F is an extrusion coating and laminating machine designed for the production of flexible packaging materials. Bobst is a well-established manufacturer of equipment for the packaging and converting industry, with a broad range of machinery for printing, coating, laminating, extrusion and related processes.
This 2018 Bobst Rotoextruder 400F is equipped with two automatic turret unwinders, each suitable for reels up to 1,000 mm in diameter. The machine features a water-based primer coating unit with rotogravure application and is configured for three-layer production.
The extrusion section is equipped with two screws with diameters of 100 mm and 80 mm, both with a 30D L ratio, and a die width of 1,700 mm. The maximum web width is 1,300 mm, while the maximum mechanical speed is 400 m/min.
The machine can process a range of flexible packaging substrates. Materials specified for the primary unwinder include BOPP, PET, PA, OPA, PE, paper and lamination materials. The second unwinder can handle aluminium foil, BOPP, PET and PE within the specified material thickness ranges.
The Rotoextruder 400F is fitted with a Doteco gravimetric dosing unit, thickness measurement, edge guides and a corona treater. It also features inline lamination and inline slitting with edge suction. The finished reels are handled by an automatic turret rewinder for reels up to 1,000 mm in diameter.
The Bobst Rotoextruder 400F is currently in production and can be inspected in operation. Manuals are available.
