ULVAC EWA-165 Vacuum roll coater/ metallizer

GENERAL INFORMATION:
Manufacturer: ULVAC, Inc., Japan
Model No.: EWA-165
Type: Vacuum Roll Coater (Vacuum Metallizer)
Application: Metallization of plastic films (PET/OPP/PE etc.) by aluminum evaporation
Useful web width: up to 1650 mm
Film thickness range: 12 μm typical.
 
POWER SUPPLY:
Control / Main Units
Power supply: 
3Φ, 60 Hz, AC 380 V
Rated power consumption (cabinet 1): 
290 kVA
Rated power consumption (cabinet 2): 
160 kVA
 
VACUUM SYSTEM:
Main Pumps
Oil Diffusion Pump (Ejector type):
Model: 
ULVAC PBL-20
Power: 
18 kW
Fluid charge:
90 L
Voltage: 
380 V
Water cooling requirement: 
25 L/min (<25°C)
Backing and auxiliary pumps:
·       Mechanical pumping system – included in ULVAC standard configuration
·       High vacuum generation using diffusion pump + ejector system  
Vacuum performance:
 
Base pressure: 
≤ 5×10⁻⁵ Torr
Pump-down time to operating vacuum: 
approx. 4–7 minutes
Vacuum measurement:
multiple gauges across chamber zones
 
VACUUM CHAMBER & INTERNAL EQUIPMENT:
Chamber design
Type: 
Cylindrical Vacuum Roll Coater Chamber
Effective width:
1650 mm
Material: 
stainless steel
Internal cooling wall (Nybrine Z-1 medium)
 
Evaporation system
·       Number of evaporation boats: 11 zones
·       Aluminum wire feed — automatic
·       Deposition uniformity controlled by zone power adjustment
·       Typical layer thickness control according to production sheet (Fine and Rough modes)
Cooling wall
Temperature range: 
–15°C to +30°C
Cooling response time:
approx. 30 min
Heating response time:
approx. 30 min
 
WEB HANDLING SYSTEM:
Speed
Operating speed:
400 ± 50 m/min
Maximum metallizing speed: 
up to 450 m/min
Tension control
Unwind tension: 
240 ± 12 N
Rewind tension:
240 ± 12 N
Unwind & Rewind Section
·       Automatic tension control
·       AC vector motors (Reliance Electric GL-Series):
- Power: 5.5 kW
- Speed: 1500 rpm (max 3600 rpm)
·       Pneumatic brake and clutch systems
·       Edge guiding (EPC)
Roll parameters
Core sizes:
3" and 6" (FRP)
Typical roll width: 
1650 mm
Material path:
Top-to-bottom configuration
 
PROCESS CONTROL & OPERATION MODES:
Process parameters (per production sheet)
Bombard interval: 
7 sec (450 mm bombard)
Aging conditions:
- Temp: 35 ± 5°C
- Time: 72 h 
O₂ purity:
≥ 99.99%
Al purity:
≥ 99.8%
Control system
·       Central operator panel
·       Automatic vacuum sequence
·       Evaporation zone power control
·       Tension control with feedback
·       Safety interlocks
·       Error alarms
 
COOLING SYSTEM:
External Chiller
Manufacturer: 
Weight:
Voltage: 
3Φ AC380V 60Hz
Cooling capacity: 
149.8 kVA
Weight:
1820 kg
 
SAFETY SYSTEMS:
·       Overheat protection (evaporation boats / pumps)
·       Vacuum chamber door interlock
·       Electrical safety (IP44 motor protection)
·       Cooling system temperature alarms
·       Overcurrent & arc-detection systems
·       Emergency stop circuits
 
DIMENSIONS & ENVIRONMENT:
·       Installation type: indoor
·       Ambient temperature: 5–40°C
·       Humidity: < 95% (non-condensing)
·      

Power protection: IP20–IP44 depending on component