Operating instructions

Facility Requirements
Copyright © 2012 EVG 143
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11 Facility Requirements
Purpose / Type Volume / Specification
Voltage:
European System: 230V, +/- 5 %, 50/60Hz 3-phase, 5wire
US System: 120V/208V, 5 wire system, +/-5%,
50/60 Hz (3-phase)
Japan System: 200V, 4 wire system, 3-phase
Nitrogen or compressed air
(dried, cleaned):
OD:
8 mm
(3/8”)
6 bar (Minimum) – 8 bar (Maximum)
8bar (Minimum) – 10bar (Maximum)
for 10kN and 60kN Bonders
Purge gas:
OD:
8mm
(3/8”)
10 bar (Maximum)
Cooling Water
EVGroup’s cooling chucks are based on small precise channels machined in
aluminum. Because of the small size of the cooling channels it is imperative that the
cooling water be free of particulate contamination as well as any biological
contaminates. The water must also be free on any chemicals that react with
aluminum, to prevent damage to the aluminum. Adherence to the following
specifications will ensure that there are no problems with the cooling chucks. Any
consequences resulting from failing to adhere to the specifications will be the
customer’s responsibility.
Cooling Water Quality:
Closed loop system filtered (100 micron filters); the cooling water must be
mechanically clean, optically clear, without deposits, to keep the cooling circuit free
from dirt and organic suspended matter. To avoid corrosion damages, the following
requirements for the cooling water must be met:
Requirements:
Recommended is the mixing of inhibited Propylenglycol 30 - 50 % Vol. in DI-Water
(e.g.: Heat Transfer Fluid Dowcal 20 from DOW Chemical Company)
pH value: 7 – 8.2
max. oxygen content: < 4mg/kg (ppm) - due to level of Propylenglycol
If mixing with tap water the following requirements must be met:
max. chloride content of tap water: < 25mg/kg (ppm)
max. hardness of tap water: < 100mg/kg (ppm)
Aggressive carbon dioxide and ammonia should not be detectable!
Temperature: 16-18°C
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