2002 Galileo 3320 Metallizer

Working width: 3350mm

Materials: PET 8-35MY, BOPP 11-60MY, LDPE 20-100MY, CPP 20-60MY, PVC 20-80MY

Maximum diameter reel unwind: 1000mm

Maximum diameter reel rewind: 1000mm

Evaporation boots: 37

Pumping down time: to 5 x 10-4mbar, less than 5min

Pumping system: metallizing chamber, diffusion pumps 50000l/sec, roots pumps 5500m3h

Winding chamber: roots pumps 13000, roots pumps 5500m3h

Guard chamber: roots pumps 5500m3/h, roots pumps 1000m3/h

Polycold: 2

Maximum web width 3350mm

Maximum/minimum metallizing width: 3330-1270mm

Maximum diameter: 1000mm

Internal core diameter: 254/152mm

Maximum weight: 3500kg

Slitter included

Winding system: maximum working speed 1000mm-min 90m/min

Four motor driven rollers, regulated by a drive control system which controls the dynamics of the web transport the speed and the tension values along the film path

Unwinding and rewinding axles, with locking devices for expanding shafts manually operated

One spreader bowed roller before the metallization, which is synchronized to the coating drum

The bending plane can be adjusted from the operator console during the process remote control

Its bow degree can be changed when the machine is in stand by

Coating process drum chromium plated and polished

One tensioning capstan roller

Several web guiding rollers before and after the metallizing drum

Tendency driven roller is mounted after the coating drum

A lay on arm for the rewinder with these features: spreader bowed roller

Bending plane can be varied from the console during the process, distance and contact modes are possible

Electrical feeding: tension +6-10% 480v, frequency ±4% 60hz

Phase 3 wires: 3 + ground, maximum absorbed power approximately 550kw

Cooling water: flow rate approximately 800l/min

Evaporation system: sources lay out for a high aluminium uniformity boats on two rows

A large diameter metallization drum provides for a lower heat impact on the film

The evaporating sources bars of intermetallic sintered materials are press fitted to water cooled copper spring loaded clamps

Individual power supply control for each source

Individual Al wire feeding by means of stepping motors

Short and straight Al wire feeding system to prevent wire jamming

Evaporation area is enclosed within cooled shields, lifted for fast cleaning

Shutter, a cooled movable shield, covers the heat sources before running on the film

It opens automatically at a preset minimum speed and closes when the same speed is reached during deceleration or when an emergency occurs

Direct observation of the sources through a large window protected from Al dust

PLC controls the sources switch on

Progressive heating

Delayed switch off for Al drying and the delayed venting of the chamber for cooling the sources

Adjustable metallizing width by means of movable cooled shields under the process drum

Motor driven shield can swing down, for easy cleaning

Extra cooling element: an isolated high pressure zone enhances the heat transfer from plastic material to chilled rollers

The system, a sort of cooling chamber, controls the film temperature trend during metallization qualitatively represented by the lower curve of the graph allowing more favorable conditions with respect to the standard system low pressure and even more so, with respect to a metallization without simultaneous web chilling no cooling

Advantages are: lower roll temperature, heat generated wrinkles avoided