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alloy
02-24-2013, 03:53 PM
I picked up a 42" Trinco blast cabinet this weekend. Got it home and did a few repairs on it and hooked it up and filled it with sand. It doesn't work very well and I took the pickup tube out and fund this. I don"t think it's a factory setup by any means. I've got good dry air and 18 cfm of airflow, so I think I'm good there.

I've sent an email to Trinco to see if they have a new pickup tube available, but also wanted to ask if anyone has a recommendation for a pickup tube they have used and had good success with from another manufacture.

http://i46.photobucket.com/albums/f107/alloyspecialties/pickuptube_zpsd1b6a4f9.jpg

PJRitz
02-24-2013, 08:01 PM
A good pickup tube design is as important as the gun itself, I have tried several different pickup designs and we have many commercial designs at work, but by far the best flowing ones I have found are from TP Tools.

http://www.tptools.com/p/328,140_Skat-Blast-Pickup-Tubes.html

I have one in my home blast cabinet and get very good consistant flow with absolutely NO surging, they are a very simple cheap design that just works, simply 2 tubes welded together side by side, one goes to the gun and the other brings air down to the siphen point and they have a hole connecting the two tubes right near the pickup point.

I am running about 35CFM @ 100PSI but these will work great @ your 18CFM with the right size nozzle and orifice.

PJRitz
02-24-2013, 08:01 PM
A good pickup tube design is as important as the gun itself, I have tried several different pickup designs and we have many commercial designs at work, but by far the best flowing ones I have found are from TP Tools.

http://www.tptools.com/p/328,140_Skat-Blast-Pickup-Tubes.html

I have one in my home blast cabinet and get very good consistant flow with absolutely NO surging, they are a very simple cheap design that just works, simply 2 tubes welded together side by side, one goes to the gun and the other brings air down to the siphen point and they have a hole connecting the two tubes right near the pickup point.

I am running about 35CFM @ 100PSI but these will work great @ your 18CFM with the right size nozzle and orifice.

alloy
02-24-2013, 11:45 PM
Thanks for the reply. That's exactly the information I needed. I've found several pickup tubes I could buy, but I wanted to hear about others experience to help me make my decision on which one to get.

My gun has a 1/4" carbide nozzle in it, I'm not sure if my 18cfm compressor is large enough for that size of nozzle. From looking on Trinco's website that's the smallest one they offer for their gun.

EVguru
02-25-2013, 06:14 AM
Have a look at this improvement I made to my home made cabinet;

http://bbs.homeshopmachinist.net/threads/49010-It-s-a-blast!?

alloy
02-25-2013, 01:08 PM
I have to see if I can duplicate what you did. I'm hoping for an email back from trinco and see what they have for a pickup tube before I make a decision on which one to buy.




www.t56cablespeedometer.com

ed_h
02-25-2013, 11:03 PM
My cheap blaster cabinet had the common tube-within a tube pickup. I finally realized that the outer tube was probably to supply air to the area near the end of the inner pickup tube, but the way the tube was installed in the cabinet, the upper end of the "vent" tube was under the media. I made this dual tube pickup and it works much better.

http://bullfire.net/Blast_Cabinet/SDC10585a.JPG

The large tube goes to the gun, while the small one is the vent and extends into open air.

alloy
02-27-2013, 09:17 PM
Thanks for the info on the tube. I got an email from Trinco and the picture I posted is their "new" pickup tube assembly.

I checked my gun and I have a .08 air jet and a 1/4" nozzle. I'm not sure if my 18 cfm is enough for such a large nozzle. Trinco sent me a parts breakdown and they list a 5/16" nozzle for 25 cfm.

I know this thing ill work, I just have to figure out what I need to change for the cfm I have available.