LONGEVITYsimon
Bronze Member
Checkout the latest video done with the ForceCut 42i cutting on 110v on the Torchmate CNC table. Do not forget to join our Youtube Welding channel!
LONGEVITY FORCECUT 42i PLASMA CUTTER REVIEW WITH VIDEO PART 1
- Thread starter longevity
- Start date
- Views: 7028
LONGEVITYsimon
Bronze Member
Hi Jim,
I was able to get some more data for your request. We are working on the cut speeds on the torchmate table to get an accurate result. The duty cycle is at 40 degrees Celsius 10 minutes at 40%. Same on 110v.
Above is the chart with 110v on the left side and 220v on the right side showing maximum cutting capacity.
jimcolt
Gold Member
Simon,
So 40% duty cycle at 40 degrees C.....at what output in killowatts (output amperage and load voltage). Duty cycle means nothing if it is not rated at the power output. As an example....if you were cutting at 40 amps on 16 gauge steel the load voltage (arc voltage as measured from the electrode to the workpiece) would likely be around 110 volts.....so 40 amps x 110 volts equals 4400 watts or 4.4 kW. If you were cutting 1/2" steel at 40 amps, the load voltage will be close to 130 volts, or 40 x 130 = 5.2 kW. A power supply has to work much harder (even though the amperage is the same) to produce 5.2 kW (1/2" steel) as compared to 4.4 kW for 16 gauge steel.....and the duty cycle will be drastically different. This is why duty cycle means nothing unless there is an ambient temperature (which you have), an output amperage and a load voltage (which you don't show). It is also strange that the input voltage does not affect duty cycle...as a power supplynthat is producing the same output kW while cutting at low input voltage (120v) also generates more internal heat than when producing the same output, but operating on a higher input voltage (such as 230v). This is true for all plasma cutter power supplies as well as welders...
Jim
So 40% duty cycle at 40 degrees C.....at what output in killowatts (output amperage and load voltage). Duty cycle means nothing if it is not rated at the power output. As an example....if you were cutting at 40 amps on 16 gauge steel the load voltage (arc voltage as measured from the electrode to the workpiece) would likely be around 110 volts.....so 40 amps x 110 volts equals 4400 watts or 4.4 kW. If you were cutting 1/2" steel at 40 amps, the load voltage will be close to 130 volts, or 40 x 130 = 5.2 kW. A power supply has to work much harder (even though the amperage is the same) to produce 5.2 kW (1/2" steel) as compared to 4.4 kW for 16 gauge steel.....and the duty cycle will be drastically different. This is why duty cycle means nothing unless there is an ambient temperature (which you have), an output amperage and a load voltage (which you don't show). It is also strange that the input voltage does not affect duty cycle...as a power supplynthat is producing the same output kW while cutting at low input voltage (120v) also generates more internal heat than when producing the same output, but operating on a higher input voltage (such as 230v). This is true for all plasma cutter power supplies as well as welders...
Jim