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GONGYI

Gongyi 5KG-6KG Golden Melting Furnace Kit Stainless Steel Material 2700℉ Metal Smelting Gold Copper Aluminum Recycle

    • Based on 921 reviews
Condition: New
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Availability: Only 2 left in stock, order soon!
Fulfilled by Amazon
Arrives Thursday, Jan 2
Order within 23 hours and 51 minutes
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Size: 5KG


Features

  • High Quality Material: Heavy Duty stainless steel 304 furnace body, with golden surface. No-rust, corrosion resistance, durable.
  • Reach High Temperatures Quickly: Heavy Duty stainless steel 304 gas burner offers 135,000 BTU output, heat up to 2600F/1426C, it's very easy to melt kinds of metals, it can melt copper wire in 15 minutes.
  • Pro Heat Insulation: Built-in ceramic fiber heat insulation Thickness up to 25mm, Excellent heat insulation effect.
  • Safety: Come with 2 meters long gas hose and regulator, professional design for working with America standard Propane Tank directly, Easy to use.(It does not work with BBQ low pressure gas tank fitting)
  • All In All: The complete set covers all of the basics, Furnace, burner, gas hose with regulator, 6KG crucible, fire pad, tongs, PTFE tape, manual.

Brand: GONGYI


Fuel Type: Liquefied Petroleum Gas


Material: Stainless Steel


Product Dimensions: 8"L x 8"W x 12"H


Power Source: Gas Powered


Item Weight: 5 Kilograms


Package Dimensions: 16 x 12.25 x 11.75 inches


Item Weight: 11 pounds


Manufacturer: GONGYI


Date First Available: October 26, 2022


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Jan 2

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.

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Top Amazon Reviews

    • Works great if flame is adjusted correctly.
Size: 6 kg
Review Image by Echo November Echo November
Review Image by Echo November Echo November
Review Image by Echo November Echo November
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! ... show more
Reviewed in the United States on April 16, 2023 by Echo November Echo November
    • Worked great.
Size: 6 kg
This worked great for me. Was easy to setup and I was able to melt aluminum, copper and brass so far. Had good results after getting a graphite mold to pour into as well.
Reviewed in the United States on April 28, 2023 by youri
    • You are gonna love this.
Size: 6 kg
What a great product, really. After seasoning my crucibles and started to melt some silver I knew this is under rated . Kick ass is all I can say.
Reviewed in the United States on April 23, 2023 by john p amick
    • Awesone
Size: 6 kg
Tons of fun just make sure you have personal protective equipment. Easy set up and use
Reviewed in the United States on April 30, 2023 by Dustin
    • Great for aluminum cans.
Size: 6 kg
This forge worked amazing for the aluminum cans I had. Holds the perfect amount of molten aluminum for one pour into a Troy ounce cast iron mold. Great quality for the price.
Reviewed in the United States on April 14, 2023 by Kyle Evans
    • Good quality product
Size: 6 kg
Good quality build. Has melted everything from zinc to copper in it so far and it's quite reliable. Don't forget to use flux when you melt.
Reviewed in the United States on April 17, 2023 by David Jones
    • Does not come properly prepared
Size: 6 kg
Review Image by Kalvis Kalvis
Review Image by Kalvis Kalvis
Review Image by Kalvis Kalvis
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. ... show more
Reviewed in the United States on April 23, 2023 by Kalvis Kalvis
    • Oven and burner great, crucible leaked.
Size: 5KG
The oven itself is pretty amazing, the burner is very powerful, even at approximately 1/4 to 1/3 open it melted copper in 12 to 15 minutes. The only issue I had was with the crucible, mind you I have bought and used about 1 dozen crucibles at this time over 3 years and over 1000 pours. This is the first crucible I have ever had fail, and it failed three melts in. First two pours went flawlessly, on the last melt I attempted, the crucible cracked and leaked out about 1 pound copper into the bottom of the oven. Luckily I did coat the kaowool so it will clean out fairly easily. ... show more
Reviewed in the United States on February 7, 2023 by Steven Leppo

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