GongYi 6KG Propane Melting Furnace Kit Made of Stainless Steel includes Crucible and Tongs Foundry Kiln for Smelting Scrap Metal Recycle Gold Copper Aluminum Casting GMF600

Took a chance on this foundry package and this is absolutely a great deal! Quality foundry and accessories, the instructions are clear. Setup was super easy and quick, and everything works fantastic. I’m honestly surprised how good this package is, how quickly it heats, and the level of quality in this bundle.The crucible is BIG and fits nicely inside the foundry, and easily comes out with the included tongs. The guard at the top of the pouring tongs made it so easy to safely and securely pour.I would recommend being prepared in advance for safety precautions, such as wearing a mask plus the included gloves and safety glasses. Also wear gloves (nitrile, latex etc) when handing the ceramic wool. I also suggest painting the ceramic with refractory mortar/fire concrete to preserve the wool and prevent ceramic filament flyaways. The fire brick included has a hole which helps prevent the crucible from sticking to firebrick included, but I will still put a piece of cardboard between the firebrick and crucible (creates a carbon layer) to prevent sticking just in case. Also, there’s a slight gap between the regulator and the insert port, and I plan on adding a small piece of ceramic wool there to seal that. Finally, I suggest getting a firebrick to place the crucible on when removing from the foundry to switch between the traction tongs and the pouring tongs. I have a concrete block that I keep a firebrick on, and then I put my crucible on top of that when I switch from the tongs used to pull from the crucible to the pouring tongs.I love love love this foundry and am so happy I got it! Everything included is quality and it was great to get it prepped and to start melting right away! Glad I took a chance on this!

The media could not be loaded.  I've seen a lot of reviews on several of these furnaces say it won't melt anything, or not hot enough for a proper our, etc. What is important to learn about this is that there are THREE things you have to adjust to get the proper flame. First off, turn your propane tank full on. You'd be surprised how easy it is to no do so. Second, the knob on the regulator adjusts your propane flow. Third, the sliding sleeve on the burner adjusts how much air gets mixed. The latter two of the above are the ones you need to get right. The more propane you have flowing, the hotter it gets, and the less propane you have flowing the lower the temp and if you Not enough air, or too much air, and your mix is out of balance resulting in too low or even too high of a temperature. If it sounds like it is popping or sputtering, and you still have propane, your mixture is out of balance. If you are running out of propane, no amount of mixture adjustment will help and it will keep happening. You can extend your melt time enough to finish a melt if it's pretty close by constantly adjusting the mix until you run out completely, though that was a pain. Next time I'm just switching out tanks and heating it back up.My crucibles get red hot (lit up a small area of the yard at night with just the crucible after a burn in of a new one) and are more than hot enough to melt aluminium and copper. I've had many successful melts and pours of aluminum, and one of copper. My first copper pour was bad because I hadn't thoroughly wiped down the new ingot mold and didn't preheat it enough, plus took a long time to pour the copper. 100% my error. I don't get a lot of copper, so I don't get a lot of practice with it, but working on that. We're planning on using the copper I do have, buying some tin, and casting a bronze sword. Not even worried about getting it hot enough for it as it gets enough for aluminum to flow almost like water.To address other reviews:The white ceramic plate does NOT go in the crucible. It is meant to place your crucible on when you take it out.Tempering and preparation of your crucibles, molds, and ceramic plate are CRITICAL. Look up how to do this. I put mine in my oven at 300°F for an hour to drive out moisture. With new ones I then turn it up to 500°F to finish curing it. New crucibles go into the furnace still hot from the oven and then heated slowly to red hot EMPTY. I then leave it in the furnace overnight to very slowly cool down. Its now ready for any melting. Molds I place on the lid near, but not covering, the vent hole to heat up to avoid thermal shock.If it's been awhile (months, like over winter) since I used a crucible or mold I'll put them in the oven for an hour at 300°F to dry them out. Some of the reviews make it obvious the crucible was not prepped and there was some rapidly expanding moisture that cracked or blew out part of the crucible. I have bought four crucibles and only lost one because I tried to do a slag melt and everything crystallized in the crucible. Broke the crucible trying to chisel it out, so competely my fault.The tongs are sufficient for pulling out the crucible and pouring, but there are better ones you can get separately. You need a slag scoop/spoon and a stainless steel 20" commercial one available here on Amazon works just fine. A slotted one was a bad idea, btw.Oh, and refractory bricks are a good investment to protect whatever surface you are working on. Regular bricks and pavers can work, but are more likely to have moisture in them which can cause them to crack or explode if they get too hot. Refractory bricks (like for wood stoves) are more porous and release any moisture more readily, and insulate better. I use a single layer on top of a sheet of plywood in my yard and the plywood is unscathed.Pictures are of aluminum ingots from a 5kg Gongyi mold, with banana for scale (for fun) on one side and a dollar bill for scale on the smooth side. Copper ingots are from 1kg molds. Video is from my copper melt.Tips on terms and concepts to lookup to aid you in your melting adventures:Fuel/air mixture (stoichiometry)SlagDrossThermal shockPreheating molds (to prevent thermal shock)Crucible temperingGood luck and have fun melting!

Have not had the opportunity to try yet but first impressions is good the main body of the smelter does seem to be stainless steel probably grade 304 but the top is slightly magnetic which means a lower grade stainless with magnesium most likely in it and a little lower quality but shouldn't affect its ability to do what it's cleaned, there are several good videos on this I suggest before you use it that you watch these videos. The insulation material I am sure contains silica which will emit fumes that are poisonous to you so make sure you use in a well ventilated area or do as some of the video suggest and line the silica blanket used for insulation inside the vessel

Copper, silver, and gold! love it!! Great cheap lil unit!!!

Para México debería incluirle la siguiente válvula: Rivland Adaptador para Tanque de Gas con Válvula POL ó Tipo Mexicano para Conectar a Manguera QCC1 ó Tipo Americano.

The only thing is the crucible should have a spout molded in it for easy pouring

La boca de que cubre metal a un costado de la colcha térmica estaba en pedazos. Si alguien sabe como arreglarlo estaría bien.

Great product for beginners interested in smelting. Great service easy to install. Happy all around.