Automatic Folder Gluer
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Diana Smart 55/80/115
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Diana Smart 55/80/115 folder gluers are fully automatic machines used after die cutting to fold and glue carton blanks into finished flat cartons. Diana Smart folder gluers are available in 55, 80, and 115 formats, so print and packaging companies can choose the width that fits their carton sizes and production requirements. They feature a modular structure to support different packaging styles, while the linear speed of up to 450 m/min helps keep folding, gluing, and delivery stable during regular carton converting. Our Diana Smart folder gluers are suitable for folding cartons, small boxes, sleeves, and other paperboard packaging that require accurate folding, clean glue application, and easier operation.
Technical Parameters
| Max. Machine Speed | 450 m/min |
| Cardboard | 200–600 g/m² |
| Corrugated Board | N, E, and F flute |
| Min. Blank Width | 45 mm |
| Max. Blank Width | 550 mm for Diana Smart 55; 800 mm for Diana Smart 80; 1150 mm for Diana Smart 115 |
Main Configuration
Compression and Delivery Section
- For Diana Smart 55, 80, and 115 A/B, the section uses a 600 mm wide compression belt and a 2.3 m compression track to keep folded cartons pressed after gluing.
- Compression zones can be adjusted manually according to the carton structure and glue area.
- Optional soft rubber belts can apply local pressure when specific glued areas need more controlled pressing.
- For Diana Smart 115 C, the section is configured with a 900 mm wide compression belt and a 3 m compression track.
- Four pressure zones with fine adjustment give operators better control over compression on wider carton formats.
- Optional soft rubber belts are also available for local pressure application on selected areas.
Transfer Station
- Electronic speed control keeps carton transfer stable between sections.
- A linear ejector can be added when defective, skewed, or selected cartons need to be removed during operation.
- Upper and lower carriers can be adjusted manually in the running direction to match different blank lengths.
- When the integrated linear ejector is selected, the transfer section can include a touchscreen operation unit for easier control.
- Servo drives support accurate movement through the transfer section.
- During ejection, the transport belts lower to let cartons exit cleanly.
- Cartons in different styles and sizes can be ejected at high speed when the ejector option is configured.
Pressing Station
- The pressing station reduces the fold-back force created by folded crease lines, helping cartons stay flatter after folding.
- Pressure can be adjusted separately on the operator side and drive side through ergonomic handwheels.
- The pressing process is suitable for cartons with sensitive printed, coated, or finished surfaces.
- Lateral positioning works together with the outer lower carriers of the folding station to keep carton movement stable.
Folding Section
- Telescopic roller bars on the left and right sides can be shifted according to the carton structure.
- Left-before-right and right-before-left folding are both supported as standard.
- The lower center carrier can be hinged downward as an option for easier access and setup.
- The upper center carrier can be removed or hinged upward as an option when more working space is needed.
- Lowered side frames make the folding station easier to access during adjustment and maintenance.
- Optional belt folding can process cartons with an open width down to 45 mm.
Combi Module
- Three lower carriers and five upper carriers support more complex folding paths.
- The combi module can process 4-corner and 6-corner collapsible cartons.
- Lockbottom carton setup is arranged for faster adjustment and easier operation.
- Backfolding shafts in the rear prefolder and Combi Module help handle carton styles that require reverse folding.
- Safety light gates protect operators during make-ready without blocking access to the working area.
Prefolding Section
- Low side frames on the operator side and drive side give operators better access during setup.
- Lower carriers are installed on both the left and right sides to support blank transport through prefolding.
- Upper roller bars guide the blank before it enters the main folding section, with one on the right side and two on the left side.
- A short upper carrier for the rear drive side is available as an option.
- Belt folding on the drive side supports controlled prefolding before the main folding section.
- An optional lockbottom device can be added for lockbottom carton production.
Diana Braille Module
- Braille tools can be positioned across the full working width to match the carton layout.
- Several tools can work in parallel when the carton design includes multiple Braille areas.
- The embossing metal sheet can be arranged with several embossing areas, helping maintain output when Braille marking is required.
- Braille tools can be prepared outside the folder gluer, reducing setup work on the folder gluer.
- Carton transport remains controlled during embossing, which helps keep Braille placement consistent.
- Built-in quality control checks the embossing result during production.
- The module stays under 1,400 mm in length, even when multiple Braille tools are used.
Diana Inspection Control Module
- The inspection module checks the full printed image inline before the cartons move further through the process.
- Defined areas can be inspected at different resolutions, depending on the print details and quality requirements.
- Saved inspection settings can be reused for repeat orders.
- The inspection system can compare the scanned image with the prepress PDF to detect print defects more accurately.
- Defective or skewed cartons can be ejected automatically when the ejection function is configured.
- Automatic reporting helps record inspection results and production quality data.
- Stable carton transport, LED lighting, and controlled air use support consistent inspection without adding unnecessary energy demand.
Feeder with Blank Alignment
- The feeder moves carton blanks into the folder gluer and aligns them before the folding process begins.
- Adjustable belt guides help match different blank widths and carton styles.
- Belts can be replaced in less than 60 seconds without removing the shaft, reducing downtime during maintenance.
- Individual drive control allows more accurate speed adjustment during feeding.
- Transport carriers can be adjusted in length according to the blank format.
- A suction feeder is available as an option when blanks need more stable pickup.
- Blank alignment can be set to the left or right side, depending on the production layout.
- The alignment ruler can move sideways to avoid window cut-outs.
- Optional upper and lower center carriers can be added when blanks need extra support during feeding.
User Interface and Automation
- The touchscreen gives operators access to folder gluer settings, running status, and adjustment functions.
- Clear menu navigation makes daily operation easier, especially during setup and format changes.
- Optional SmartSet positioning stores setup data for repeat orders.
- DigiSet provides carrier position values based on the blank configuration, and the data can be saved for later use.
- AutoSet calculates the setup from the blank data and moves the carriers into position automatically.
- An optional camera system can monitor the transfer station during operation.
Diana Feeder
- The Diana feeders provide continuous pre-feeding before blanks enter the folder gluer.
- Constant stack height keeps blank feeding steadier during operation.
- Stable pre-feeding supports reliable running at higher machine speeds.
Diana Packer
- Diana Packer automates the packing of finished cartons into shipping cases.
- Cartons can be packed on crease lines 2 or 4, or on closure flaps.
- Packing can be arranged with up to 5 rows per layer and up to 5 layers per case.
- Depending on carton style and production conditions, the packer can handle up to 200,000 straight-line cartons per hour.
- Setup values can be calculated before production, so operators can prepare the packer faster during make-ready.
- Automatic case control is available for more controlled case packing.