The Sealing-2825 and Sealing-2840 are high-speed smart corrugated board box sealing machines with a German-origin mechanical design, equipped with an integrated device for pre-measuring the box dimensions for high-precision automatic positioning. With an adhesive system using a hose and gun at a constant temperature, automatic double thermal insulation and the ability to lock the box in the open position for correct sealing, these smart box sealing machines reach an efficiency of 4–10 pcs/minute over a processing range of 300–2.800 mm length and 200–1.200 mm width.
Unlike conventional sealing machines that require manual adjustment of the box dimensions at each format change, the Sealing-2825 and Sealing-2840 smart box sealing machines use the pre-measuring device to automatically detect the dimensions of each box and automatically adjust their sealing parameters — eliminating setup errors and reducing downtime at format changes. The hot-melt machine is configurable with national or imported options according to the customer's requirements and budget.
Key advantages of the Sealing-2825 / Sealing-2840 smart box sealing machines
• Integrated pre-measuring device — high-precision automatic positioning — the Sealing-2825 and Sealing-2840 machines are equipped with a box-dimension pre-measuring device that performs high-precision automatic positioning of all sealing components, with no manual adjustment at each new format.
• Box locking in the open position for correct sealing — the locking system of the smart box sealing machines can hold the cardboard box in the open position during the sealing operation, ensuring that the flaps are correctly positioned before adhesive application and eliminating sealing defects caused by incompletely open flaps.
• Adhesive system with hose and gun at a constant temperature — both the adhesive hose and the gun are kept at a constant temperature, ensuring that the hot-melt is always applied at optimal viscosity throughout production, with no variations caused by ambient temperature fluctuations or short production pauses.
• Automatic double thermal insulation — uniform adhesive along the entire edge — the automatic double thermal insulation system keeps the adhesive temperature constant both in the hose and at the gun tip, ensuring uniform application along the entire length of the box edge and a superior firmness of the seal compared with single-insulation systems.
• German-origin mechanical design — the mechanical structure of the Sealing-2825 and Sealing-2840 machines is designed according to German engineering principles, recognized for precision, durability and reliability in continuous production at industrial speeds.
• Efficiency 4–10 pcs/minute — the highest in the sealing family — with an efficiency of up to 10 pcs/minute on standard formats, the Sealing-2825 and Sealing-2840 machines are the fastest sealing equipment in the UZINEX portfolio, suitable for high-pace production lines.
• Box thickness 18 mm minimum, 250 mm standard / 400 mm Pro maximum — the wide thickness range covers both thin flat boxes (min 18 mm) and tall industrial boxes (max 400 mm on the Pro version), without the need for separate equipment for different formats.
• Configurable hot-melt — national or imported option — the hot-melt machine can be configured with a national unit (lower cost) or an imported unit (higher technical standard) according to the customer's quality requirements and available budget.
Technical specifications — Sealing-2825 / Sealing-2840 smart box sealing machines
| Parameter | Sealing-2825 / Sealing-2840 |
|---|---|
| Length processing range (mm) | 300–2.800 |
| Width processing range (mm) | 200–1.200 |
| Output efficiency (pcs/min) | 4–10 |
| External dimensions (mm) | 9.950 × 2.200 × 2.260 |
| Corrugated board thickness (mm) | 2,5–6,5 |
| Minimum sealed-box thickness (mm) | 18 |
| Maximum box thickness — standard model (mm) | 250 |
| Maximum box thickness — Pro model (mm) | 400 |
| Pre-measuring device | Integrated — high-precision automatic positioning |
| Adhesive system | Hose + gun at constant temperature |
| Thermal insulation | Automatic double |
| Box locking | Open-position locking system |
| Hot-melt | Configurable — national or imported |
| Mechanical design | German origin |
The Sealing-2825 versus the Sealing-2840 — the differences between the models
Both the Sealing-2825 and Sealing-2840 models use the same basic technical specifications — the same processing range (300–2.800 mm length, 200–1.200 mm width), the same efficiency of 4–10 pcs/minute, the same constant-temperature adhesive system and the same integrated pre-measuring device. The difference between the two models is in the mechanical configuration for specific applications and formats. UZINEX provides free technical consultancy for selecting the right model based on the typology of the sealed boxes and the customer's specific production-line requirements.
Integrating the Sealing-2825 / Sealing-2840 sealing machines into UZINEX packaging lines
The Sealing-2825 and Sealing-2840 smart box sealing machines are the final sealing equipment for the packaging lines in the UZINEX portfolio. They integrate naturally downstream of the Folding-2590 automatic box folding machine, the FQ-P03 packaging line (for sealing folded boxes) or the FQ-P01 line (for sealing boxes formed from flat board after packaging the product).
The efficiency of 4–10 pcs/minute of the sealing machines makes them compatible with the pace of all the folding and packaging equipment in the UZINEX portfolio, without representing a bottleneck in the production flow. The integrated pre-measuring device ensures that no manual adjustments are needed when switching from one box size to another, maintaining high productivity even in production with varied formats.
Applications and industries for the Sealing-2825 / Sealing-2840 smart box sealing machines
The Sealing-2825 and Sealing-2840 machines are intended for packaging plants and manufacturers that seal high volumes of corrugated board boxes with varied dimensions, where the sealing speed and the uniform quality of the edge gluing are critical for the box's correct functioning during transport and storage.
Industrial manufacturers of furniture, household appliances and equipment that package bulky products use the Pro version of the machines — with a maximum thickness of 400 mm — for sealing tall boxes that cannot be processed on equipment with the standard 250 mm limit. The integrated pre-measuring device eliminates manual adjustments when switching from one product's format to another, essential in production with multiple SKUs packaged in the same shift.
Fulfillment centers and logistics operators that seal boxes of varied dimensions received from several suppliers benefit from the wide processing range (300–2.800 mm length, 200–1.200 mm width) and the pre-measuring device of the Sealing-2825 and Sealing-2840 machines, which automatically adapt the sealing parameters to each box without manual intervention.
How the Sealing-2825 / Sealing-2840 smart box sealing machines work
1. Box feeding and automatic pre-measuring — the corrugated board boxes (folded or formed) are fed into the smart box sealing machine; the pre-measuring device automatically detects the dimensions of each box and transmits the values to the control system for automatic adjustment of the sealing parameters.
2. High-precision automatic positioning — based on the dimensions detected by the pre-measuring device, the machine automatically adjusts the position of all sealing components to the correct values for the current format, with no manual intervention.
3. Box locking in the open position — the locking system holds the box in the correct flap-open position during the sealing operation, ensuring that the adhesive is applied to correctly positioned flaps and that the seal is complete along the entire length of the edge.
4. Hot-melt application with hose and gun at a constant temperature — the hot-melt machine (configurable national or imported) applies the adhesive through the hose and gun kept at a constant temperature; the automatic double thermal insulation ensures the adhesive's optimal viscosity regardless of production conditions.
5. Edge sealing and sealed-box output — the adhesive applied uniformly on the flap edges ensures a firm seal along the entire length; the sealed box comes out at an efficiency of 4–10 pcs/minute, ready for palletizing, bundling or direct shipping.
Why UZINEX for the Sealing-2825 / Sealing-2840 smart box sealing machines
• Free technical consultancy — Sealing-2825 or Sealing-2840, standard or Pro — UZINEX evaluates the typology of the sealed boxes, the maximum thickness required, the production volume and the integration requirements in the existing line to recommend the optimal model and configuration.
• Transport, installation and commissioning included free of charge — the smart box sealing machine is delivered, installed and started at the customer's site by the UZINEX technical team, with calibration of the pre-measuring device, configuration of the hot-melt unit and operator training.
• Extended 60-month warranty — one of the longest warranties available in Romania for industrial smart box sealing machines, with technical support included and on-site intervention or video assistance in under 36 hours.
• National technical support in under 36 hours — on-site intervention or video diagnostic session in less than 36 hours from report, with a dedicated 24/7 telephone line for UZINEX customers.
• AI smart manual included — complete operation, preventive-maintenance and troubleshooting documentation with AI assistance for over 96% of technical requests without human intervention.
• Full eligibility for European funding — UZINEX provides the documentation and full support for EU-, NRRP- or structural-funds procurement.
The Sealing-2825 and Sealing-2840 smart box sealing machines are the industrial solution for plants that seal corrugated board boxes of varied dimensions at a high pace — with an integrated pre-measuring device for automatic positioning, a constant-temperature adhesive system with double insulation for uniform and firm sealing, a German-origin mechanical design and configurable hot-melt, at 4–10 pcs/minute and box thicknesses from 18 mm to 400 mm on the Pro version.