2/11/2024 0 Comments Skat cat sandblaster![]() This pressure setup seems to be much more efficient as it seems the pressures are not wide open. Bare with me, but is seems as though your pinch valve is running in the media part of the stream. I also looked up pinch valves on eBay and as is often the case, there is a HUGE price range with different specs. The foot switch is a great idea, and it happens I have several heavy duty ones I got in a weird batch of pneumatic stuff in a local junk store. Besides the inefficient suction setup I also hated the deadman nozzle on the HF because with the big glove it feels like you are wrestling, not working. Like how they were plumbed but they were also I think what you are calling a recycling type because there was no separate pressure tank. I've used blast cabs in school many moons ago but never got into the specifics of them. It's just great to find someone who's done what has been a side project idea for a while. I've not gotten the cab out of the shed yet or bought the pressure unit either. And I get you're busy so there's no rush. I'm the type who gathers the info, then the parts. I have to load up my display and a bunch of transmissions. I'm going out of town tomorrow to a swap meet I don't have a lot of time this evening. If you let me know what you need pics of I can try and take them tonight. On the hose I just cut the one that came with the pressure tank and attached it to the hose barb fittings. The Ace ones are much more expensive but the barb part of the fitting is much longer. Too short to trust while your twisting the hose around for fear it will pop off while your using it. I looked at the fittings that Home Depot had and the barb was very short like about a 1/2". Then I got 2 hose barb fittings from Ace hardware. To get the pressure hose through the cabinet I used a 3/8" pipe bulkhead fitting I got off ebay. But its a million percent better than the HF one. It has replaceable rubber blocks, but the replacements don't fit very well. HF sells one, but its completely useless. You don't have to use a pinch valve, you can use a dead man valve. I do transmission cases and just did a bell housing and holding the dead man open was a pain for anything but very small parts. It allows me to control the flow with a foot pedal instead of holding a dead man valve open. The pinch valve is a pneumatic shut off valve. I am on the lookout on CL for a cabinet that recycles the media. tank I can go for a long time before having to refill the tank. I empty it into a 5 gallon bucket and pour it back into the pressure tank. I don't have any kind of dump valve, just the spring loaded trap door that was in the cabinet. I had a large HF cabinet for a very short time then upgraded to a professional quality cabinet. The pinch valve was $68, and the rest was the cost of the fittings (not cheap) and the regulator. ![]() If anyone needs links or part numbers let me know. So much easier to handle now and my hand doesn't get tired at all even when doing a complete housing. Just used the nozzle end and put the hose barb fitting on it and put it on the end of my hose. I took the dead man apart and got rid of the handle and body. I used a foot pedal I got off Amazon to control the valve. I picked up a 3/8" NPT bulkhead fitting for the hose so I could go through the cabinet wall. On my cabinet I'm using the original hose that came with the HF blaster. ![]() ![]() It had a hose nipple on one end, so I milled that off and drilled and tapped it for 3/8" NPT so I could connect the valve directly to it. I have had pretty good luck with the HF regulators. Here is a pic of what I started with on the HF pressure tank.Īnd changed it to this adding a second HF regulator for the pinch valve. I have the pressure set at about 45 psi for glass beads so I won't shatter them when blasting. The pinch valve required a separate pressure regulator to adjust the air pressure to about 25 psi above the pressure I'm blasting with. So I ordered a pinch valve from Richway to add foot pedal control and do away with the dead man gun. I have been using a dead man gun and it's getting tiresome holding it open to blast transmission housings. I had a HF 110lb pressure blast unit on my old cabinet and just transferred it to the new one. I picked up a nice Skat Blast cabinet and dust collector awhile back to replace another one that was a clam shell design that took up a lot of extra room in my small shop.
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