Galileo Vacuum metallizer for thermal evaporation

• Polyester (PET) : 12-60 µm
• Biaxially Oriented Polypropylene (BOPP): 20-80 µm
• CPP : 25 – 80 µm
• The machine is also able to metallize Low Density Polyethylene (LDPE), Polyamide (PA) and Cellophane with thicknesses depending upon the specific material and the tension range of the machine. All materials must be suitable for vacuum metallizing.

• Maximum speed: 720 m/min
• Minimum speed: 90 m/min

1. Process
   1. Evaporation Deposited material: aluminium Recommended degree of purity: 99,8% Diameter of the aluminium wire 1,6 mm Boats number: 19 Boats dimensions: 120x35x10 mm Boats material: Intermetallic sintered
   2. Winding system Maximum speed: 720 m/min Minimum speed: 90 m/min Tension range: 3-65 kg Acceleration and deceleration time at max. speed: 30 s Process drum diameter 500 mm
   3. Pumping system Metallizing chamber

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      Type                                                                  Nominal flow rate Diffusion pumps                                                     50000 l/sec Roots pumps                                                           5500 m3/h Polycold Rotary piston pumps Kinney                               505 m3/h Winding chamber

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      Type                                                                  Nominal flow rate Roots pumps                                                           13000 m3/h Roots pumps                                                             5500 m3/h Roots pumps                                                            2400 m3/h Polycold Rotary piston pumps Sogevac SV630B                  755m3/h Guard chamber

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      Type                                                                  Nominal flow rate Roots pumps                                                            2400 m3/h Roots pumps                                                            1000 m3/h Rotary piston pump Kinney                                   505 m3/h

2. Utilities

2.1 Electrical feeding

• • • Tension : 400V
    • Frequency: 50Hz
    • Phase: 3
    • Wires 3 + ground
    • Max. absorbed power (approx.) 270kW

2.2 Cooling water

• • • Flow rate (approx.): 300 l/min
    • Inlet temperature: 15÷25 °C
    • Inlet pressure (for free outlet): 3 kg/cm2
    • Max.heat load to remove: 220 kW
    • The water quality must be such as to prevent dirt and corrosion in the cooling system. (Recirculating system recommended). Typical water specifications
      • Water hardness: 6-8 °D
      • CO2 content: Max 15 mg/l
      • Cl content Max 20 mg/l
      • Particle size: Max 100 µ
      • Particle concentration: Max 10 part./m3
      • Ph: 6,9-8,2
      • Conductivity: Max. 500 µS/cm

2.3 Compressed air

• • • Pressure: 6-7 kg/cm2
    • Consumption (average): 0,7 Nm3/h
    • Peak consumption: 50 Ndm3/s

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