csspecs
Aluminum
- Joined
- Nov 22, 2010
- Location
- Central Florida USA
I was nice and included the Metric values for those poor souls still using that archaic system
I am in the process of upgrading my shop air, and I wanted to see if maybe I can justify going to a larger compressor and better filter and dryer to also reduce my need for gas tanks.
Does anyone know that the air purity requirements are?
On thin metal like say 22ga (.7 mm) what am I going to see for performance drop vs oxygen on a small 500 watt machine, currently I'm running something like 11 meters a minute on 22ga (.7mm)
My understanding is that compressed air will basically behave like Nitrogen so the nozzle sizing would be adjusted to nitrogen levels. About 3/4 of my cutting is 22ga (.7mm) carbon steel, I do a little 18ga (1.2mm) and 16ga (1.5mm) and once in a great while I'll do a sheet of 14ga (2mm) but that is a once a year thing.. I'd be fine keeping a couple oxygen tanks for thick stuff.
My Nitrogen chart says I need around 90-100psi (6.2-6.9 bar) and about 280-320 scf/H (8-9 CM/H) for 18ga, I'd imagine 22ga (.7mm) would be slightly less.. Compressor I am looking at can do 140-175psi (9.6-12 bar) and 15 cfm (.42 CM/M) at max pressure.. So it looks possible with fairly off the shelf stuff unless I'm missing something.
Now I'm sure I'll need one of those refrigerating dryers since I'm in Florida and my average temperature and humidity is about 95F and 90% (35C)
Link to compressor
https://www.northerntool.com/shop/tools/product_200350475_200350475
I am in the process of upgrading my shop air, and I wanted to see if maybe I can justify going to a larger compressor and better filter and dryer to also reduce my need for gas tanks.
Does anyone know that the air purity requirements are?
On thin metal like say 22ga (.7 mm) what am I going to see for performance drop vs oxygen on a small 500 watt machine, currently I'm running something like 11 meters a minute on 22ga (.7mm)
My understanding is that compressed air will basically behave like Nitrogen so the nozzle sizing would be adjusted to nitrogen levels. About 3/4 of my cutting is 22ga (.7mm) carbon steel, I do a little 18ga (1.2mm) and 16ga (1.5mm) and once in a great while I'll do a sheet of 14ga (2mm) but that is a once a year thing.. I'd be fine keeping a couple oxygen tanks for thick stuff.
My Nitrogen chart says I need around 90-100psi (6.2-6.9 bar) and about 280-320 scf/H (8-9 CM/H) for 18ga, I'd imagine 22ga (.7mm) would be slightly less.. Compressor I am looking at can do 140-175psi (9.6-12 bar) and 15 cfm (.42 CM/M) at max pressure.. So it looks possible with fairly off the shelf stuff unless I'm missing something.
Now I'm sure I'll need one of those refrigerating dryers since I'm in Florida and my average temperature and humidity is about 95F and 90% (35C)
Link to compressor
https://www.northerntool.com/shop/tools/product_200350475_200350475