Hypertherm Powermax45 SYNC - Maximum Inlet Pressure; Minimum Inlet Pressure and Gas Flow Rate; Add more Gas Filtration

Install and Set Up the Plasma Power Supply
2
Powermax45 SYNC Operator Manual 811470 41
Maximum inlet pressure
Never exceed the maximum gas pressure of 9.3 bar (135 psi).Optimum inlet pressure
For best system performance, make sure that the inlet gas pressure stays between 7.6 bar – 8.3 bar
(110 psi – 120 psi) while gas is flowing.
Minimum inlet pressure and gas flow rate
The table that follows shows the minimum gas flow rate and inlet gas pressure requirements for the
cutting, gouging, and marking processes.
You can adjust these pressures for different conditions that are specific to your environment.
Additional gas filtration installed between the gas supply and the plasma power supply can have an
effect on gas pressure and gas flow. Speak to the filter manufacturer about gas pressure
requirements. Hypertherm recommends that you install an inline pressure gauge at the gas inlet on
the back of the plasma power supply. Use this gauge to monitor the gas pressure at the plasma
power supply, after all external filtration.
Add more gas filtration
It is extremely important to keep a clean, dry gas line to:
 Prevent oil, water, dirt, and other contaminants from causing damage to internal
components.
 Get optimal cut quality and consumable life.
WARNING
EXPLOSION HAZARD
The filter bowl in the plasma power supply can explode if the gas pressure is more than
9.3 bar (135 psi). Never use more than the maximum gas pressure of 9.3 bar (135 psi).
Process Minimum gas flow rate and inlet pressure
Cutting (20 A - 45 A) 212.4 slpm (450 scfh) @ 5.9 bar (85 psi)
Gouging (20 A - 45 A) 212.4 slpm (450 scfh) @ 4.8 bar (70 psi)
FineCut
®
Marking (9 A - 19 A) 141.6 slpm (300 scfh) @ 4.1 bar (60 psi)