Specifications

46
Appendix
The Cold Jet AeRO 75 series blast machine works best when the supply
air is free of any debris and has a dew point of -40°F (-40°C).
If Using Plant Air (Central Compressed Air System)
Manufacturing plants, with central compressed air systems, should have an
After Cooler and a 2-stage coalescing filter assembly downstream of the
receiver tank. Hot metal pipes are an indication this is needed.
To verify that the plant air system is adequate for the AeRO 75 (75-DX) the
air compressor needs to produce an air volume 10% greater than the blast
machine's maximum air volume...in addition to the air volume consumed by
normal plant operation.
To determine adequate air volume, blast while watching the pressure
gauge.
• If the gauge drops slowly the compressor is insufficient.
• If the gauge drops quickly there is a restriction or the pipe is too small.
• If the gauge stays steady then the compressor and piping are
adequate.
To maintain adequate pressure to the AeRO 75 (75-DX):
• From the air compressor to 50 ft (15 m) use a flexible 1 in (25 mm) air
hose (preferably the hose supplied with the machine).
• From the air compressor to beyond 50 ft (15 m) make sure the pipe is
1 in (25 mm) in diameter before attaching the air hose.
If an air drop isn’t used much, water and rust will collect in the line. Before
plugging into the air supply, purge the line, to prevent contamination of the
AeRO 75 (75-DX).
Blast Air Quality
Up to 140 psi (9.6 bar)