34 Powermax125 Operator Manual 808080 Revision 0
2 – Power Supply Setup
Prepare the gas supply
The air can be supplied by a compressor or from high-pressure cylinders. A high-pressure regulator must be used on
either type of supply and must be capable of delivering gas to the air inlet on the power supply.
The system contains a built-in filter element, but additional filtration may be required depending on the quality of the gas
supply. If the supply quality is poor, cut speeds decrease, cut quality deteriorates, cutting thickness capability decreases,
and the life of the consumables shortens. For optimal performance, the gas should be compliant with ISO8573-1:2010,
Class 1.2.2 (that is, it should have a maximum number of solid particulate per meter cubed of 20,000 for particle sizes in
the range of 0.1 – 0.5 microns, a maximum of 400 for particle sizes in the range of 0.5 – 1 microns, and a maximum of 10
for particle sizes in the range of 1 – 5 microns). The maximum water vapor dew point should be -40° C (-40° F). The
maximum oil (aerosol, liquid, and vapor) content should be 0.1 mg/m
3
.
Additional gas filtration
When site conditions introduce moisture, oil, or other contaminants into the gas line, use a 3-stage coalescing filtration
system, such as the Eliminizer filter kit (228890) available from Hypertherm distributors. A 3-stage filtering system works
as follows to clean contaminants from the gas supply.
The filtering system should be installed between the gas supply and the power supply. Additional gas filtration may
require higher pressure from the source.
CAUTION!
Synthetic lubricants containing esters that are used in some air compressors will damage
polycarbonates used in the air regulator bowl.
Water and particle
filter
Oil filter Oil vapor filter
Gas supply Powermax
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