FASTTOBUY 6 KG Propane Melting Furnace Kit w Graphite Crucible and Tongs 1300°C /2372°F Casting Refining Smelting for Precious Metals Gold Silver Tin Aluminum 6-in-1 Melting Casting Tool,US Stock

Llego bien solo que la lana cerámica no llego como lo dice en las especificaciones falto lana en el recubrimiento faltando 4 cm al nivel diámetro, deben de enviar los artículos como lo especifican. Ya ir viene muy delgada la lana cerámica.

Works good. Exactly how advertised. My only concern is my crucible is cracked after the 3rd melt. Did the warm up procedure properly to. How do go about getting a replacement?

Summary: Great way to get started in metal casting, does require minor assembly and operation does take a little finesse since there isn't a regulator.Overall the kit has everything you need to start casting metal, though I would recommend some leather welding gloves and a fire extinguisher. The furnace is better than most, with a refractory cement interior and the only exposed Kaolite being on the lid - Kaolite becomes extremely brittle even after a single firing, so this makes it a lot more durable than cheaper furnaces which have exposed kaolite on the interior of the burn chamberThe furnace was well-packaged with tons of bubble wrap and arrived with no damage. Design, fit and finish, assembly are basic and functional - for example the feet are simply nuts welded to the outer shell, but serve their purpose. I do like that the top of the furnace is slightly tapered to make a tighter seal with the lid, although the hinge for the lid could definitely be beefier.Crucible and ingot mold are decent - both are graphite so should last a long time, though I wish the crucible had spouts. Tongs appear to be hand forged and worked perfectly for handling the crucible, however pouring was a bit tricky since these are straight tongues and not the angled type. The crucible is a bit of a tight squeeze in the furnace, so just be aware that it is at capacity.I was one of those shop geeks in middle and high school wood and metal - enough that when I got to college I had a part time job in a model shop. I've done aluminum and bronze metal casting in several class environments so had been itching to make my own - this was a lot faster and easier than a DIY furnace.Assembly was straightforward - you connect one end of the hose to the burner and the other side to the tank connector. The hose is a nylon reinforced silicone hose - a smart upgrade would be for a stainless jacket - you would NOT want to burn a hole in your hose by accident. I'm also thinking of putting a proper regulator on it. I recommend connecting the tank last since you need to rotate the burner tube in order to connect it into the furnace. You definitely need to use the 3 set screws for the burner - just make sure the inside angled outlet is aligned properly. Put some anti-seize on the threads if you want to disassemble later.Lighting the furnace was pretty simple - put a piece of burning paper inside the (empty) chamber and turn on the gas. The trick is to turn the gas on VERY slowly. It took be at least 4-5 tries the first time because I kept opening the valve too far. You really want a very low flow to sustain the flame. This does NOT have a regulator so you will want to keep an eye on the furnace under operation - I had a pretty full tank and a warm day so I didn't have to touch the valve once I got it up and running.After lighting it, I let it burn for about 4 minutes to preheat, then I put a crucible in with just over a lb (18 oz) of copper scrap, I wanted to test it on copper since copper, brass and bronze all melt around the same temp with aluminum being much lower. Then I waited. It took another 21 minutes (25 minutes from lighting the furnace) to where the copper started to melt. At 35 minutes total I turned off the furnace and poured the ingot.The burn used about a pound and a half of propane (1 b 6 oz) . It should work faster next time - I noticed that the furnace was dripping moisture and steam as this was the first burn for the furnace, and there was likely residual moisture being driven off from the refractory cement.Best of all, remove the burner tube and the whole thing fits in a 5-gallon bucket (with cutouts for the handles).

Oft auf einem Videoportal gesehen. Vorallem Leute die es mit 3D druck kombinieren.Erst die Form gedruckt eingegossen. Dann ausgebrannt. Und nachgegossen.Dafür habe ich mir dieses Set geholt.Die Verarbeitung ist gut. Ich hatte keine Risse im inneren. Auch der Tiegel und die Form machen einen guten Eindruck. Zange und Zubehör ist in Ordnung. Ein Freund hat mir allerdings empfohlen einen Druckminderer und Explosionschutz beim Einsatz von Propan zu nutzen. Das kann ich jedem auch nur ans Herz legen. Kostet zwar nochmal ein Paar Euro aber die Sicherheit ist es mir wert. So kann man auch gut die Power regulieren.Alles in allem bin ich echt zufrieden.

This furnace is good. I had problems with different regulators not allowing a good flame so I straight piped it to the propane tank with included adapter. Great success but you have to use the nozzle on the tank to control gas (only very slightly open)... melting hard copper in about 10 minutes.