KatzFeldkurat Posted October 9, 2017 Share Posted October 9, 2017 Hi! I need a little help with deciding to buy an old sandblaster machine together with compressor. It will be my first blaster, and I have zero experience with these machinery! So I turn to the community for advice! Please if you have any comments, remark, share it with me! Thank you in advance! Link to comment Share on other sites More sharing options...
caterpillar Posted October 9, 2017 Share Posted October 9, 2017 First question. Do you really need this kind of material? http://www.paleotheque.fr Link to comment Share on other sites More sharing options...
Kanopus Posted October 9, 2017 Share Posted October 9, 2017 Is compressor oilless? Link to comment Share on other sites More sharing options...
KatzFeldkurat Posted October 9, 2017 Author Share Posted October 9, 2017 24 minutes ago, caterpillar said: First question. Do you really need this kind of material? I want to try out sandblasting as a preparation tool. I use vibro tool for preparing since 2 years and I feel that I reached the end of the potential with it. I can always prepare in my apartment with vibro tool, but I plan to use this equipment periodically at my parents cellar where I can use compressor. Mostly for finishing pieces and for soft marl coated fossils. It will be for hobby, not for prepping in big ammount for trade. You can see some of my recent work here: 21 minutes ago, Kanopus said: Is compressor oilless? Yes, the seller says it is. But I did not see the water trap on it. Or in the blaster. I know a few things in theory about sand blasting, but have zero practical experience, that is why I choose to post it here. I did not see how the dust extraction works either in this machine or how is the sand collected or filtered. Regards. Link to comment Share on other sites More sharing options...
Kanopus Posted October 9, 2017 Share Posted October 9, 2017 3 minutes ago, KatzFeldkurat said: Yes, the seller says it is. But I did not see the water trap on it. Or in the blaster. I know a few things in theory about sand blasting, but have zero practical experience, that is why I choose to post it here. I did not see how the dust extraction works either in this machine or how is the sand collected or filtered. Regards. Good. Don't worry about the water trap. You can buy it almost everywhere. It's quite cheap. The blasting chamber is not perfect for fossils (too small). But you can make one by yourself. Link to comment Share on other sites More sharing options...
KatzFeldkurat Posted October 9, 2017 Author Share Posted October 9, 2017 2 minutes ago, Kanopus said: Good. Don't worry about the water trap. You can buy it almost everywhere. It's quite cheap. The blasting chamber is not perfect for fossils (too small). But you can make one by yourself. Yes, that what I am thinking too. I want to build a bigger chamber from wood or something easy to craft. and use that next to the machine Other questions is that I see other type of nozzle, with much smaller bore diameter. Is this good in this way? Overall what is your opinion on the machine? Can it be used after all, or more worry than profit? Link to comment Share on other sites More sharing options...
Kanopus Posted October 9, 2017 Share Posted October 9, 2017 1 hour ago, KatzFeldkurat said: Overall what is your opinion on the machine? Can it be used after all, or more worry than profit? I think this nozzle is too big for fossil prep. My biggest nozzle is 1,2mm and I use it for bulk removal only. 1 hour ago, KatzFeldkurat said: Overall what is your opinion on the machine? Can it be used after all, or more worry than profit? Depends on the price. Try the machine. If it works, I don't think you will have any problems in the near future. But I think you will have to change the nozzle anyway. Link to comment Share on other sites More sharing options...
KatzFeldkurat Posted October 9, 2017 Author Share Posted October 9, 2017 2 minutes ago, Kanopus said: I think this nozzle is too big for fossil prep. My biggest nozzle is 1,2mm and I use it for bulk removal only. Depends on the price. Try the machine. If it works, I don't think you will have any problems in the near future. But I think you had to change the nozzle anyway. What is the optimal diameter for a nozzle? Could it be custom made by a regular metal workshop? The machine is about 500km away from me, so if I go to try it, I am virtually forced to buy it or throw out a lot of money just for a trip. But if its works, I could handle the bigger chamber, the water trap and nozzle problems. Link to comment Share on other sites More sharing options...
Kanopus Posted October 9, 2017 Share Posted October 9, 2017 13 minutes ago, KatzFeldkurat said: What is the optimal diameter for a nozzle? Could it be custom made by a regular metal workshop? Depends on your needs. Less diameter provides more delicate work. Probably workshop can do it. I don't think that you are going to blast with corundum, so the steel nozzle will work. By the way there are many nozzles (made by Vaniman, Renfert and etc) on the market so yo can try to install one of them. Even dispencing needles can work (http://www.thefossilforum.com/index.php?/topic/75383-just-pen-for-air-abrasive-system/&tab=comments#comment-794570) 1 Link to comment Share on other sites More sharing options...
KatzFeldkurat Posted October 11, 2017 Author Share Posted October 11, 2017 I looked around on the internet to find some solutions for the nozzle. I think maybe a 0,4-0,6mm nozzle is good for fossil preparation? I will use iron powder. I know that, I will need to build a bigger chamber and have to find a working water trap for the compressor. How do you collect the used powder? How do you clean or sieve it? Anybody other thoughts on the machine? What can go wrong? What I need to assess if Iam trying it out? regards. Link to comment Share on other sites More sharing options...
Kanopus Posted October 11, 2017 Share Posted October 11, 2017 0,4 - 0,6 mm nozzle will work. I use 0,6 mm Renfert nozzle and 18 gauge dispencing needles. I sieve the used powder (and iron powder too). 1 Link to comment Share on other sites More sharing options...
Kanopus Posted October 11, 2017 Share Posted October 11, 2017 After all what is the price of this set? Link to comment Share on other sites More sharing options...
KatzFeldkurat Posted October 12, 2017 Author Share Posted October 12, 2017 16 hours ago, Kanopus said: 0,4 - 0,6 mm nozzle will work. I use 0,6 mm Renfert nozzle and 18 gauge dispencing needles. I sieve the used powder (and iron powder too). 15 hours ago, Kanopus said: After all what is the price of this set? I'm sorry I did not answer so far! Thank you for the tips! If its available next week its 500Euro, the seller wont go lower saying, he sells it to another. I balanced the pro and cons and I think if I have to pay the same amount for transforming it to be usable, it will worth it. Of course if it can be transformed after all... Regards. Link to comment Share on other sites More sharing options...
Kanopus Posted October 12, 2017 Share Posted October 12, 2017 For example the price of Vaniman Sandstorm Mobile is about 350-370$ and the price of Renfert Basic Mobile is 420-450 Euro. These devices don't have a blasting chamber, but you can build it by yourself. Also you can start with Paasche AECR system (I've paid 130$ for it with shipping to Russia). And you can use dispencing needles with it. It works good with iron. But it can work if the pressure doesn't exceed 50 PSI. This is OK for my purposes. 1 Link to comment Share on other sites More sharing options...
Ludwigia Posted October 12, 2017 Share Posted October 12, 2017 On 9.10.2017 at 1:52 PM, KatzFeldkurat said: I did not see how the dust extraction works either in this machine or how is the sand collected or filtered. You'll have to purchase and construct your own dust extraction system. To begin with you can use an inexpensive heavy vaccum which can be bought at every building center, but the fine dust destroys the motor with time. It's also best to get one where you can adjust the suction strength, otherwise it might also suck out the powder, or at least make sure that it's not too powerful. The best thing is to eventually get a dental vacuum like a Purmat 1200 and build in a cyclone filter in between to catch the fine dust. But I'd wait there until you gather more experience since that solution is not exactly the cheapest one. As far as collecting the used powder, you can sweep it up and sieve in back into the tank again, but be absolutely certain that the sieve is fine enough, otherwise the abrader will get plugged up. I use a sieve with a mesh breadth of 0.2mm. 2 Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
KatzFeldkurat Posted October 12, 2017 Author Share Posted October 12, 2017 1 hour ago, Kanopus said: For example the price of Vaniman Sandstorm Mobile is about 350-370$ and the price of Renfert Basic Mobile is 420-450 Euro. These devices don't have a blasting chamber, but you can build it by yourself. Also you can start with Paasche AECR system (I've paid 130$ for it with shipping to Russia). And you can use dispencing needles with it. It works good with iron. But it can work if the pressure doesn't exceed 50 PSI. This is OK for my purposes. 3 minutes ago, Ludwigia said: You'll have to purchase and construct your own dust extraction system. To begin with you can use an inexpensive heavy vaccum which can be bought at every building center, but the fine dust destroys the motor with time. It's also best to get one where you can adjust the suction strength, otherwise it might also suck out the powder, or at least make sure that it's not too powerful. The best thing is to eventually get a dental vacuum like a Purmat 1200 and build in a cyclone filter in between to catch the fine dust. But I'd wait there until you gather more experience since that solution is not exactly the cheapest one. As far as collecting the used powder, you can sweep it up and sieve in back into the tank again, but be absolutely certain that the sieve is fine enough, otherwise the abrader will get plugged up. I use a sieve with a mesh breadth of 0.2mm. Thank you both!! Its much clearer now how this whole sandblasting thing works. I saw a lot of different and complicated solutions, talked to lot of people in local mineral fairs, who own sandblasters (they were not too helpful sometimes, because they saw a rival in me). In the end everybody speaks about how complicated and sensitive this preparation method, but I only saw that it needs a chamber a blaster and a compressor. Now I see this is the most basic of things, and the real deal comes after the basic equipment are ready, like the vacuum and dust recovery, water traps etc. and operating it smoothly. I want to use a blaster for cleaning fossils from soft rock (chalk, argillic marls) and cleaning the already prepped out fossils for the details. I clearly see my future in the fossil preparation as a hobby, I dont want to produce quantity for trade, so thats why I thinking about to buy the equipment that I posted before.. Its old, tiny but if its working it will be good for me.. But now I see that maybe I will come out better to buy, say the mentioned renfert basic, an oilless compressor and build a chamber for it. And use some sieve to clean the powder at first attempt, and after that I will see what to modify. Its better to have a machine with stable background for spare parts and accessories than buy an old model without any support. Do I see this right? Link to comment Share on other sites More sharing options...
Kanopus Posted October 12, 2017 Share Posted October 12, 2017 2 minutes ago, KatzFeldkurat said: Its better to have a machine with stable background for spare parts and accessories than buy an old model without any support. I think the same way Link to comment Share on other sites More sharing options...
KatzFeldkurat Posted October 13, 2017 Author Share Posted October 13, 2017 Thank you all for the advice! I think I see much clearer now, what I need and how to achieve it regarding sandblasting. I ask for deleting the photos from the first post, to avoid any problems. Link to comment Share on other sites More sharing options...
Fossildude19 Posted October 13, 2017 Share Posted October 13, 2017 44 minutes ago, KatzFeldkurat said: Thank you all for the advice! I think I see much clearer now, what I need and how to achieve it regarding sandblasting. I ask for deleting the photos from the first post, to avoid any problems. Deleting the photos makes the point of the thread obscure. What problems are you worried about? Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 __________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
jpc Posted October 13, 2017 Share Posted October 13, 2017 I am not familiar with this particular machine, but it looks like it would be a good fossil prep machine. And yes, you may have to build a bigger woirk chamber. That is fairly easy to do. I agree that the opening on the nozzle is probably too big for your fossils. Is the air compressor and dust collector in the machine? If you do get it, it will expand your fossil prep potential by a bunch. I owuld go for it. Link to comment Share on other sites More sharing options...
KatzFeldkurat Posted October 16, 2017 Author Share Posted October 16, 2017 On 10/13/2017 at 2:47 PM, Fossildude19 said: Deleting the photos makes the point of the thread obscure. What problems are you worried about? Sorry for responding this late! I thought that maybe the photos offend the seller somehow because I posted them here. That is why I asked for removing them, but if you think they should stay, its ok for me! On 10/13/2017 at 6:36 PM, jpc said: I am not familiar with this particular machine, but it looks like it would be a good fossil prep machine. And yes, you may have to build a bigger woirk chamber. That is fairly easy to do. I agree that the opening on the nozzle is probably too big for your fossils. Is the air compressor and dust collector in the machine? If you do get it, it will expand your fossil prep potential by a bunch. I owuld go for it. Thank you for your advice! Its some kind of dentist machine, I dont know what was its real purpose. There are no dust collector in the machine as I know it. Sadly some other life issues came up on this weekend, and it seems I have to let this opportunity pass... Regards Link to comment Share on other sites More sharing options...
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