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screen printing => Equipment => Topic started by: cclaud3 on October 12, 2011, 11:30:47 AM
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Ok, I'm looking for a little guidance from the auto people. I'm looking at the 7/8 Titan, servo index + air heads. SCFM requirements are 13. My air compressor knowledge is slowly forming.
I visited Grainger and they suggested the combo below. I asked for screw driven and now realize this one isn't. Total cost, including refrigerated chiller is $2350. 5hp, 15 cfm.
http://www.grainger.com/Grainger/wwg/search.shtml?searchQuery=4l977&op=search&Ntt=4l977&N=0&sst=subset (http://www.grainger.com/Grainger/wwg/search.shtml?searchQuery=4l977&op=search&Ntt=4l977&N=0&sst=subset). Chiller: http://www.grainger.com/Grainger/wwg/search.shtml?searchQuery=3ya50&op=search&Ntt=3ya50&N=0&sst=subset (http://www.grainger.com/Grainger/wwg/search.shtml?searchQuery=3ya50&op=search&Ntt=3ya50&N=0&sst=subset)
Looks like the smallest screw driven option is this one: http://www.grainger.com/Grainger/INGERSOLLRAND-Rotary-Screw-Air-Compressor-6WA80?Pid=search (http://www.grainger.com/Grainger/INGERSOLLRAND-Rotary-Screw-Air-Compressor-6WA80?Pid=search). About 3k more and trying to determine if there is a chiller on this one (dont' think it has one).
My question is: I know the screw driven will be quieter, and I believe longer-lasting do to it's design. But for this specific press which has low air requirements is it worth the thousands more for this vs a nice two stage piston driven with chiller? If it really needs it then fine, I can swing the difference. Nothing else will be running off of this compressor. The compressor will be in a separate room from the press. Thank you for your insight.
Chris
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You absolutely do not NEED a screw compressor for that press. 5hp with a 60 gallon tank is the smallest any one would recommend you go with a printing press. Once you're up and running you'll see how often your compressor cycles based on job type and number of heads running. I think you'll agree after it's up that you don't need the rotary for those air requirements. The only change I would have made to your choices is going with an 80 gallon vs the 60 gallon tank.
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Don't forget the chilled air dryer.
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You can also build a sound closet around your compressor to help keep the noise down. Just make sure it has adequate venting for intake and exhaust.
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Thanks everyone for the information.
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This is what we got for our Titan. I found that this is actually quiter than a Screw and the Maintenance is less.
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A rotary screw compressor is a good investment.... but not required.
There a lots of good places to buy a compressor... here's one option, with free shipping.
http://www.northerntool.com/shop/tools/product_200318461_200318461 (http://www.northerntool.com/shop/tools/product_200318461_200318461)
http://www.northerntool.com/shop/tools/product_200318501_200318501 (http://www.northerntool.com/shop/tools/product_200318501_200318501)
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Thanks--like the free shipping!
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We use a Vane type compressor. It was what was available for a quick purchase when we upgraded our auto. I bought it used from a compressor supply house for a lot less than a screw I wanted. I am glad I did. It is a hair louder than screw but man it is efficient. I had a guy come do a service on it and he said in his opinion these are the best way to go. This compressor is a little over kill for one machine but as we expand it will handle the load numerous autos. On my model they dont even need to look inside until the 70,000 hour mark. I am at 3400 or so hours now. Heres a link to a site that has a little technical info on them. I have a Mattae but the principle is the same.
http://www.daveycompressor.com/vanevsscrew.html (http://www.daveycompressor.com/vanevsscrew.html)