A servo-driven flexo press removes the mechanical limitations of traditional gear-linked printing stations by using independent AC servo motors on every plate cylinder, anilox roll, and impression cylinder. This architecture gives converters direct digital control over speed, position, and torque, which translates into faster registration setup, lower waste on short runs, and a much wider repeat length range without changing large gear sets. Because each station can be adjusted independently, the press holds fine screens and line work more accurately on thin films, coated paperboard, pressure-sensitive label stock, shrink sleeves, and flexible packaging laminates. Operators can switch from one job to the next with minimal manual adjustment, and the machine can store recipes for repeat length, drying temperature, corona treatment, and unwind tension. These benefits make the servo-driven platform a practical choice for label converters, flexible packaging manufacturers, and specialty printers that need consistent quality across a growing mix of SKUs. For film-based jobs that demand extremely tight color-to-color register at high web speeds, a Central impression gearless flexo press wraps the web around a single common impression drum and provides stable substrate travel. A Gearless stack flexo press is often selected when floor space is limited or when access to individual color stations is important for frequent wash-ups and plate changes. Converters that require inline finishing can integrate a Gearless inline flexo press with flatbed or rotary die-cutting, cold foil, lamination, and inspection systems. When daily throughput and setup speed are the main focus, a High speed gearless flexo press supports faster acceleration and automatic pre-register functions to reduce non-productive time.
The servo-driven flexo press is supplied as a modular platform that can be configured with 2 to 10 color stations, depending on the application. Each print deck features a sleeve-based cylinder system, an enclosed doctor blade chamber, and a servo-driven anilox roll for precise ink metering. The HMI control system provides central adjustment of impression pressure, print-on/print-off positions, and drying temperature, while the closed-loop tension control maintains constant web tension from unwind to rewind. The standard configuration includes automatic pre-register, which moves each deck to its saved job position before the web starts moving, and automatic impression control, which sets the print-on pressure without operator trial and error. These features help converters reduce setup waste by up to 40% and make the press suitable for short to medium runs with frequent job changes.
On standard film packaging, the servo-driven flexo press runs polyethylene, BOPP, CPP, and PET from 12 to 300 microns. On paper and board, it handles coated and uncoated stocks from 80 to 350 gsm. The drying system is available in hot air, UV, or LED UV configurations, and the number of drying zones can be matched to the color stations and expected running speed. For water-based inks on paper and board, high-efficiency hot air drying with adjustable nozzles is normally specified. For UV inks on film and labels, UV or LED UV cassettes are placed after each print station and before the final rewind. An enclosed doctor blade chamber keeps ink viscosity stable, reduces solvent evaporation, and protects operators from direct contact with ink components. Ceramic anilox rolls are laser engraved with the required cell volume and geometry, and an optional anilox cooling system helps maintain temperature stability during long runs. The press also includes a video inspection system option that lets operators monitor print quality on the HMI in real time, with zoom and split-screen views for critical barcodes, micro-text, and registration marks.
Main Technical Specifications
| Parameter | Specification |
|---|---|
| Max web width | 330 / 520 / 850 / 1270 mm |
| Max print width | 320 / 510 / 840 / 1250 mm |
| Repeat length | 200 – 800 mm depending on sleeve selection |
| Color stations | 2 – 10, expandable |
| Mechanical speed | Up to 300 m/min |
| Printing speed | 150 – 250 m/min substrate dependent |
| Register accuracy | ±0.05 mm |
| Substrate range | Film 12 – 300 µm; Paper 80 – 350 gsm |
| Unwind / rewind diameter | 600 / 800 / 1000 mm |
| Drying options | Hot air, UV, LED UV |
| Drive system | Independent AC servo motors per deck |
| Tension control | Closed-loop automatic |
| Anilox rolls | Ceramic, laser engraved |
| Doctor blade system | Enclosed chamber |
Key Configuration Features
| Feature | Function |
|---|---|
| Pre-register system | Moves each deck to preset positions and reduces setup waste |
| Sleeve-based cylinders | Allows quick repeat length changes without removing complete cylinders |
| Automatic impression control | Sets kiss-touch or print-on pressure from the HMI |
| Closed-loop web guide | Maintains lateral position within ±0.05 mm |
| Enclosed doctor chamber | Keeps ink viscosity stable and reduces operator exposure |
| Automatic wash-up | Cleans ink train and chamber in programmable cycles |
| Remote diagnostics | Supports real-time troubleshooting and software updates |
Operational Advantages
