GongYi 10 Ounces Mini Kiln Melting Furnace Kit Mapp Gas Torch Kiln Stainless Steel Material Gold Smelting Sliver Aluminum Recycle
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Availability:
16 left in stock
Arrives
Tuesday, Aug 19
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Size: Mini
Features
- Durable Stainless Steel Construction: Made from high-quality stainless steel, this mini melting furnace is designed to withstand high temperatures and resist corrosion.
- Comes with 2 Pure Graphite Crucibles: This furnace comes with two pure graphite crucibles, allowing you to melt a variety of materials with ease.
- Includes Quartz Crucible: Additionally, this mini kiln comes with a specially designed quartz crucible, which is perfect for holding the pure graphite crucible during the melting process.
- Efficient Heating: The mini melting furnace is equipped with a MAPP gas torch, which provides rapid and efficient heating to melt a variety of materials in a short amount of time.(MAPP gas and torch is NOT included)
- Full kit: Includes furnace, quartz crucible, two pcs of graphite crucible, fire brick, tongs, graphite mold.
Item model number: Mini-SM
Item Weight: 4.09 pounds
Manufacturer: GONGYI
Date First Available: March 7, 2023
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If you place your order now, the estimated arrival date for this product is:
Tuesday, Aug 19
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Size: 6 kg
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) Slag Dross Thermal shock Preheating molds (to prevent thermal shock) Crucible tempering Good luck and have fun melting!
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Reviewed in the United States on April 16, 2023 by Echo November Echo November
Size: 3KG
The reason to melt mettle for casting as well as working on mettle this works for both well
Reviewed in the United States on June 25, 2023 by Muditha
great deal if you just wanna try out some pours. because it comes with a bag, its very cool to bring anywhere you have a safe place to work and a 20-40# propane to hook upto!! Yes it can burn alot of gas but yes it is fairly quick to get hot asa far as i can tell
Reviewed in the United States on May 5, 2023 by Brian Woodfill
Size: 5KG
I'm new to this and happy I selected this furnace. Works perfectly for me.
Reviewed in the United States on June 14, 2023 by MJG
Size: 6KG-Bag-Tongs
This is one heck of a furnace and eliminate the hassle of a crusible and matte gas. This furnace had not problem melting the brass I needed quickly. Very happy
Reviewed in the United States on May 29, 2023 by Richard Castellanos
Size: 6 kg
The media could not be loaded. It works just as intended, put some scrap metal in the crucible, light it and wait for it to be ready to pour. However the ceramic wool does not come properly prepared, so you'll need to purchase a refractory cement or a rigidizer to apply to it. If you don't, you'll have these microscopic fibers that act like asbestos breaking off from the wool and wiggling their way into your lungs. It's only a $15 purchase for the rigidizer so I'd definitely spring for it.
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Reviewed in the United States on April 23, 2023 by Kalvis Kalvis
Size: 6kg with Gloves
Alas the connection to danish propangas don't fit. I cast things in bronze
Reviewed in the United States on June 6, 2023 by Leif Ringtved
I bought this thinking it would be a good starter smelter, and I was right. It's not a bad unit, the 70 or 80 pounds of lead, brass, copper & aluminum I've melted down shows that, but it does have a few issues. Or I have a few issues, can't discount that. First, putting the insulating blanket in, you have to be very, very careful when doing the upper edge of the main body blanket, and the lid. If you don't get it perfectly smooth, you'll have flame coming out around the edges. Not really an issue, but I wish now I'd done a better job. Second, the burner doesn't fit quite right as it's made. If you fasten the thumbscrews to the collar at the end of the burner, where it fits the best, the burner & flame are too far back, and you get a largish glowing spot around the burner mount. Pushing the burner far enough in to counter that & the thumbscrews barely touch the body of the burner. Solution: cut a piece of pipe & fit it around the burner just behind the collar. Other than that, I'm glad I bought it, and I've already planned my next smelter, based on what I've learned from this one & things I've read & seen online. Bottom line: if you're looking for a small or starting smelter, you could do worse than this one.
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Reviewed in the United States on November 19, 2022 by Bill Klee