ULVAC EWA-165

GENERAL INFORMATION:

Manufacturer: ULVAC, Inc., Japan

Model: 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