The Bielloni Theorema Gearless Flexographic Press

The new gearless 8/10 colour flexo press made by Bielloni
The innovative technology of our Theorema gearless consists of the direct motion transmission to the printing cylinder, anilox and central drum with a.c. motors with independently adjusted digital drives

Advantages are:

•Possibility to have infinitely variable repeats
•Possibility to vary the repeat in a range of ± 2% from nominal
•No cost on gears
•Automatic register positioning with 360° adjustment
•Best printing quality thanks to plate cylinder speed adjustment according to machine's speed
•Job memorization of all printing parameters
•Anilox and printing cylinder holders sliding on ball bearing thrusts thus eliminating the hydraulic or pneumatic locking system.
•Automatic register positioning and adjustment
•Horizontal sequential throw off driven by step motors
•Automatic brake control with pneumatic dancing roll
•Automatic control of web elongation after drying with ultra sensitive pneumatic dancing roll
•Rewinding tension control by ultra sensitive dancing roller system and taper tension with tension regulation by minicomputer.

Technical Data

Printing frame thickness: 150 mm (5.9")
Anilox cylinder: sleeve type - Plate cylinder: sleeve type
Useful printing width: 1050 mm - 1400mm
Web widths: 1100 mm to 1450mm
Minimum print repeat: 340 mm
Maximum print repeat: 800 mm
Rewind reel diameter: 800 mm
Unwind reel diameter: 800 mm
Unwind and rewind shaft diameter: 76 mm
Locking and sliding of the decks: by high precision lateral guides
Pressure release: horizontal sequential with stepping motor
Longitudinal register: automatic, continuous
Horizontal register range: ± 7.5 mm 
Maximum mechanical speed: 350 m/minute
Gear pitch: infinite (gearless)
Film tension: 0.15- 0.55 PL/ (0.25- 1 N/cm)

Used Equipment