incoldblood Posted February 23, 2015 Posted February 23, 2015 I want buy a ball mill...how many rpm have a lortone qt12 and REBEL 17? what is the best? thank you so much.
calebkessinger Posted February 24, 2015 Posted February 24, 2015 The rebel 17 only turns about 35 rpm with 35 lbs of lead in it. You have to hand start it I think and the motor probably wont last too long.. but... it is a Great base set up. just needs modifications. You can spend a fortune on a good ball mill. Here is my upgraded version.. yep they cost a lot by the time you work one over.. This hobby can be as expensive as golf!!I don't know of anyone that sells a mill that is set up perfectly for what we do ( except this one)New motor, new pully, new barrel rollers, raised rear rollers. 66 rpm, (which is perfect for this drum)https://squareup.com/market/WoodysCreations/rebel-upgraded-complete-set-up-with-lb-lead 1
schroedinger Posted February 24, 2015 Posted February 24, 2015 You always can get the KT-2000 from china. It is set up to run at the right speed. Do not buy the smaller KT-6808 it turns to fast. But still after some time you will find yourself to either build a own mill or change over to a model b or rebel (take the rebel).
insutama Posted February 27, 2015 Author Posted February 27, 2015 i have been using the harbor freight 6lbs one without any modification for the speed and i get good milled bp in 5 hrs cant get any finer its clumped in one big ball everytime and burns super fast
Dean411 Posted February 28, 2015 Posted February 28, 2015 try the rock shed I believe this is their web addresswww.therockshed.com Dean
schroedinger Posted March 1, 2015 Posted March 1, 2015 Also you could aim for a lortone qt12. Bangkok pyro can tell you some things about that mill.
pcm81 Posted March 1, 2015 Posted March 1, 2015 I bought mine on Amazon. I suspect it will be similar to 3d printing; a science project on its own...
dagabu Posted March 3, 2015 Posted March 3, 2015 I like Thumlers Tumblers, I got two from eBay for about $99 each, both turn a full load of lead and chems without slipping.
dagabu Posted March 4, 2015 Posted March 4, 2015 Sorry, yes,they are model B tumblers. Both of mine are 1970's versions but work the same as new.
MrB Posted March 4, 2015 Posted March 4, 2015 That wasn't quit what i meant. While i would like a Model B, or any of the similar models from other makers, it was mainly a means to be funny."B" - joking, so to speak. Anyway, the type is great for our needs, but the size is counter productive for some hobbyists needs. I'd like to get one, but it would probably be the least used one, simply due to the amounts it swallows.B!
dagabu Posted March 4, 2015 Posted March 4, 2015 Sorry B,didn't get that right of the bat. The best thing about the model B is that you can make a whole kilo at once.
MrB Posted March 4, 2015 Posted March 4, 2015 No worries, it was a bad joke anyway. About the kilo...That volume is also close to a bare minimum of charge you can run the mill with. You might get away with 800gr, and some extra wear on your media, but if you don't need, or don't feel comfortable with storing that much BP, you might have a problem if this is your only mill. But i do envy you, having two.B!
dagabu Posted March 4, 2015 Posted March 4, 2015 I'm not making pyro with them, just raw chems. I'll combine the chems at my buddies and make bp there. A kilo is only good for a dozen or so rockets do it goes fast.
OldMarine Posted October 25, 2015 Posted October 25, 2015 This appears to be the best thread I could find for this question. I'm already getting antsy over my HF ball mill's capacity so an looking to upsize soon. Has anyone had any experience with this tumbler?http://www.ebay.com/itm/15lb-Capacity-Rock-Tumbler-Heavy-Duty-Free-Grit-Kit-Complete-with-Instructions/261995101383?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D34225%26meid%3Db7def66c04c046f0a82154abc9d74109%26pid%3D100005%26rk%3D2%26rkt%3D6%26sd%3D380891867186 Capacity seems nice and adjusting the rpms appears easy enough. I don't have time to build one yet but I plan on it some day. Cheap but functional will do for now.
Mumbles Posted October 25, 2015 Posted October 25, 2015 Yep, those used to be common place in pyro. The seller, hobfir, is short for Hobby Fireworks. Matt is a good guy, and the devices seemed well built. They can churn out black powder in a few hours. I generally let it run for 4hr starting from coarse materials. I had some clumping problems. Without needing to stop and break up clumps and caking BP, it probably wouldn't have taken quite that long. As a bonus, you can put your harbor freight jars on the mill, and it runs at around the optimal RPM. Great for smaller amounts of comp or grinding single chemicals. There is pretty minor maintenance too. Just an occasional wipe down, and oil on the bearings. I added a small felt furniture leg pad to one side to prevent the jar from rubbing against the frame. My biggest issue was actually the jar, though it's actually a fairly minor issue. It's well built and seemed pretty resilient. There are just some spaces between the main pipe and the two fittings. They can be difficult to clean. This isn't really an issue if you're only milling black powder and similar compositions. Just kind of a pain if you ever want to grind white single chemicals. If you care about this, you can buy spare jars from him, or just make your own.
OldMarine Posted October 26, 2015 Posted October 26, 2015 Thanks Mumbles, I think I'll give it a try especially since you said the HF jars would work on it as well. A friend at a local HF gave me several extra jars she'd saved from returned units.
dynomike1 Posted October 30, 2015 Posted October 30, 2015 Build you one like this. Less than $200.00.http://www.myhostedpics.com/images/dynomike1/20151030071701.jpg
dynomike1 Posted October 30, 2015 Posted October 30, 2015 (edited) This appears to be the best thread I could find for this question. I'm already getting antsy over my HF ball mill's capacity so an looking to upsize soon. Has anyone had any experience with this tumbler?http://www.ebay.com/itm/15lb-Capacity-Rock-Tumbler-Heavy-Duty-Free-Grit-Kit-Complete-with-Instructions/261995101383?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D34225%26meid%3Db7def66c04c046f0a82154abc9d74109%26pid%3D100005%26rk%3D2%26rkt%3D6%26sd%3D380891867186 Capacity seems nice and adjusting the rpms appears easy enough. I don't have time to build one yet but I plan on it some day. Cheap but functional will do for now.The only problem i see is you cant go with a bigger jar.You know it takes a lot of powder if you do very much. I make enough powder to last me all year 4lbs at a time. I use ceramic media, lead just doesn't last long and it is hard on your motor/belt. http://www.ebay.com/sch/i.html?_odkw=ceramic+balls+1%2F2%22&_osacat=0&_from=R40&_trksid=p2045573.m570.l1311.R4.TR6.TRC2.A0.H2.Xceramic+media.TRS0&_nkw=ceramic+tumbling+media&_sacat=0 Edited October 30, 2015 by dynomike1
Ubehage Posted October 30, 2015 Posted October 30, 2015 I use ceramic media, lead just doesn't last long and it is hard on your motor/belt. I discovered that just tiny amounts of moist in the KNO3, will wear down the lead medias and contaminate the chemicals.
OldMarine Posted October 31, 2015 Posted October 31, 2015 Well, I ordered the hobfir mill. I don't see me outgrowing it anytime soon, but I also didn't see me picking what is possibly the most addictive and expensive hobby ever.Now onto presses!
OldMarine Posted November 6, 2015 Posted November 6, 2015 Got my hobfir mill and some extra hardened lead media on the same day.Gonna make pile-o-powder this weekend! 1
Recommended Posts