Input on High pressure flush system.

[tac284]

So I decided to build a flushing system for the new lathe. I probably don't do enough barrel work to justify having it but I don't really care. For about a week I have been googling high pressure flush systems and reading as much as I can, unfortunately a lot of posts are old and pictures are no longer. I think I will list out what I plan on buying and let some of you experience folks critique what I am buying. The one main question I have is, I want to put a pan under the chuck for the return, for you guys that are doing this I would like to know what you did as far as filtering the chips from going back to the tank. Pictures say a 1000 words so if you have any they would be greatly appreciated.

In picked up a closed coupled gear pump off eBay (Shurflo GCBN33V Carbonator Gear Pump 3/8" NPT 1/2 HP 4.25 GPM) for a good price.

I will get my filtering housing and 5 micro filters long with the pressure relief valve from MSC on Monday. It will be these part numbers.

MSC #37011921 (250 psi relief valve)

MSC # 37022761 ( filter housing)

MSC #37023009 (spun 5 micron filter)

Thinking that i will order this oil tank from Northern tool, was going to build one but figured this would save some time. Northern tool no. 405112

This is a filter that goes in the oil tank on the suction side. Northern tool no. 778639

I will pickup the barb fittings and 3/8 air hose at MSC also. I will weld up a stand for all of this and put it on wheels so I can move it around the garage. I will post pictures as this comes to life. Thanks for all your help.

 

[Dusty Stevens]

Do you have a plan for the barrel swivel attachment and a way to catch the oil to get it back to the tank?

 

[tac284]

Oh ya the swivel, I will pick up a deublin rotary union off eBay probably, or end up making one. I am also open to suggestions. I will be building the attachment part from the barrel muzzle back to the end of my headstock. With the true bore on and a old 24" barrel in, I am around 11" from being to the end of the outboard side. So the hookup will have to be adjustable and under 2" in diameter.

As far as the return, that was a question I asked in the first paragraph. I will probably have to tig weld together a pan that will set down in my bed ways. I don't think a bread pan will work but I haven't got that far yet. I was wondering about the guys that where using bread pans was how are they straining the chips before returning to the reservoir?

 

[338 Mollett]

How well does a flush system get around a pilot bushing that is fitted to 2 ten thou. or less?

 

[Eddie Harren]

Reamers, that are made to accommodate flush systems, have linear grooves ground in the tip, under the pilot bushing, to allow the coolant to flow through.

 

[338 Mollett]

That would be cool!Talk about reducing cutting time.

 

[Eddie Harren]

Just boggles the mind doesn't it?

 

[tac284]

Well everything is in route as far a parts go, got the gear pump tonight. I am suprised at the lack of feedback , I thought there quite a few guys using this system on here. I do have to give a big thanks to Kyle out in Sioux falls, SD for sending a bunch of pictures of his setup, Thanks Kyle! I figure I will keep these thread going and post up the build. Pictures to follow.

 

[jkohler]

I would really like to put one of these high pressure pumps together.

 

[tac284]

Got the stand mostly done last night. Need the rest of my parts to finish the last of it.

 

[Ggmac]

Wow , looks exotic . I just use air ( as pressure ) over fluid , I regulate the air pressure to match diff fluid densitys.

 

[tac284]

Wow , looks exotic . I just use air ( as pressure ) over fluid , I regulate the air pressure to match diff fluid densitys.

I'm curious about this because i thought about doing it. What kind of cfm would it require for a whole chamber, without having the comressor running the whole time?

 

[Ggmac]

I dont know , mine is hooked up to the shops compressor which is running alot of equipment . On an off day I hooked into a smaller 5hp single stage compressor (120 lb 60 gal tank ) and it didn't cycle once while cutting a 6br chamber .

 

[tac284]

I dont know , mine is hooked up to the shops compressor which is running alot of equipment . On an off day I hooked into a smaller 5hp single stage compressor (120 lb 60 gal tank ) and it didn't cycle once while cutting a 6br chamber .

Thanks Gary, I don't know if my tiny little compressor would quit running, it's just a little 1.7 HP guy and its electric/oilless. It's nosie and annoying to have to listen to.

 

[tac284]

Got home to a few big boxes on my front door step from MSC. Got everything to finish up the system minus the tank from Northern tool, which I ordered Sunday evening and still haven't got any shipping confirmation yet.

 

[Erik Cortina]

What's the cost of all this and how much time will you knock off a 10 - 15 minute barrel reaming operation?

 

[JohnMill]

I just can not believe that no one pointed out the Greg Tannel (GTRifles) has had one of these things on the market for at least 20 years. He sells a DVD and some parts at reasonable prices. But all you guys do seem to be having fun so...........

 

[tac284]

What's the cost of all this and how much time will you knock off a 10 - 15 minute barrel reaming operation?

Wow! It only takes you 10-15 minutes to ream a chamber without a flushing system!? I must be doing something wrong. Is that a pretty normal time for gunsmiths? Makes me wonder why some of the reputable smiths on this sight use them.

I just can not believe that no one pointed out the Greg Tannel (GTRifles) has had one of these things on the market for at least 20 years. He sells a DVD and some parts at reasonable prices. But all you guys do seem to be having fun so...........

It's kinda fun building it, apparently I don't need it though. I know all about Greg's stuff, I use some of his products. I just wanted to save money that's why I didn't buy from him. I got my pump for $883.00 dollars cheaper then the one on his sight, so I thought that was a good deal. Same thing with the filter housing and filter.

 

[Erik Cortina]

What's the cost of all this and how much time will you knock off a 10 - 15 minute barrel reaming operation?

Wow! It only takes you 10-15 minutes to ream a chamber without a flushing system!? I must be doing something wrong. Is that a pretty normal time for gunsmiths? Makes me wonder why some of the reputable smiths on this sight use them.

Some reputable smiths use it, some don't, so apparently it's about preference.

My question was an honest one. The reaming operation is the least time consuming operation of all, so I'm wondering how much time it takes to ream a chamber with a flush system. I know there is additional set up time as well with the flushing system, so at the end of the day there is probably no time saved at all.

 

[tac284]

Erik, one of the biggest reason's for me building this was so i could reduce my chambering times. After you telling me how long it takes for you to chamber without a flush system i'm a little embarrassed to say how long it was taking me. Keep in mind i don't do this for a living, just for myself. So do you pre-drill, bore and then finish ream? Do you use the MARS system?