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Molten Masters

MMasters 4KG Propane Melting Furnace Kit with Gloves, 2400℉ High-Efficiency Metal Foundry for Gold, Silver, Copper, and Aluminum Smelting, Ideal for Jewelry Making and Metal Casting

  • Based on 63 reviews
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Availability: Only 5 left in stock, order soon!
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Arrives Wednesday, May 27
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Size: 4kg


Features

  • High-Efficiency Smelting Furnace This propane smelting furnace features a powerful 30 PSI regulator for steady fuel flow and rapid heating, making it efficient for melting copper, aluminum, and silver
  • Compact 4kg Melting Furnace With a 4 kg melting capacity, this furnace is portable and beginner-friendly, perfect for small-scale projects like DIY casting and home foundry work
  • Complete Melting Furnace Kit Includes crucible, ingot mold, tongs, 2 fire bricks, gloves, and regulator. This all-in-one melting furnace kit provides everything you need to start casting metals right away
  • Durable & Safe Design Built with a reinforced metal shell and refractory lining, this propane melting furnace ensures consistent performance, safety, and long service life
  • Versatile Metal Casting Furnace Ideal for craftsmen, this propane melting furnace is great for creating jewelry and recycling scrap metal

Description

Discover the power and convenience of our new 4 kg Propane Melting Furnace, designed to deliver fast, efficient metal casting in a compact footprint. Driven by a high-efficiency 30 PSI propane regulator, this furnace rapidly heats metals like copper, aluminum, and silver, making it a versatile tool for hobbyists, metalworkers, and DIY creators. This all-in-one kit comes equipped with everything you need to get started: a high-quality crucible and ingot mold, durable tongs, insulating fire brick, gloves, and an adjustable regulator—all ready for immediate use. Built with a thick metal body and lined with heat-resistant refractory materials, it offers both durability and safety. Perfectly sized for small-scale projects, the 4 kg capacity makes it portable and easy to handle. Whether you’re crafting casting custom jewelry, refining scrap metal, or setting up your first home foundry, this furnace offers fast performance and reliable results every time

Package Dimensions: 17 x 12 x 8 inches


Item model number: M-MF-4


Item Weight: 14.67 pounds


Manufacturer: Molten Masters


Date First Available: June 28, 2025


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, May 27

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Great kit well worth the money.
Size: 6kg
Great product! I did not have the heat turned up all the way and it melted a large piece of aluminum in less than 5 minutes. The size is perfect for the size of the ingot mold I was using The only negative I have is the gloves that were part of the kit. They were terrible. The tips of them burned through. I suggest purchasing a good set of leather welding gloves or a good pair of firefighters gloves. ... show more
Reviewed in the United States on January 6, 2026 by Christopher Pennino
    • THE REVIEW YOUR LOOKING FOR
Size: 12kg
Review Image by Nicholas Woodard
Review Image by Nicholas Woodard
Review Image by Nicholas Woodard
Review Image by Nicholas Woodard
The media could not be loaded. 12KG Molten Master dual burner Furnace Kit "EDIT: This company is better then your quick pack drop shipping stores that sre expect on Amazon. Some good planning went into place with this set and I wouldn't recommened a different product / company to go with for a beginner." Failures: 1. The gloves only lasted through 1/3rd of the ingots shown. I RECOMMENED 1000 DEGREE KEVLAR 2. Ingot provided is TINY, see photos. 12kg is ~same volume as a cast iron bread pan. 3. The Fire brick provided for the crucible is in the condition shown after doing the ingot volume shown. 4. The tongs do not wrap around crucible as shown in photo. Tongs made for 18kg crucible. 5. The grips on the thongs are poorly secured. Pro: 1. Almost melted my stainless steel scoop spoon. So temp get hot, I have only done aluminum, but the heat temp is noticeable. 2. The adjustable gauge helps tone gas volume. 3. Very easy to assemble, operate AND pack up for storage. Upgrades recommened: 1. Gloves to kevlar, these will get you started though. 2. Ingot to cast iron bread pan. ... show more
Reviewed in the United States on June 25, 2025 by Nicholas Woodard
    • Not too shabby for the price!
Size: 18kg
Review Image by Lone Star Performance Coatings LLC
I am impressed with this little furnace kit. It worked really well for the first burn and was easy to set up. It reaches melting point fairly quickly. My only real complaints are that the ceramic honeycomb tile was broken when it arrived and that the kit says it has everything needed (which it mostly does) but a set of pouring tongs would have been nice. Overall, I am happy with my purchase. I would change it to five stars if the seller replaces the broken tile. ... show more
Reviewed in the United States on January 4, 2026 by Lone Star Performance Coatings LLC
    • Quality product for my needs
Size: 18kg
Looks like a quality product upon unboxing. While I need to do some setup I am looking forward to using this in my future sculpture projects.
Reviewed in the United States on March 12, 2026 by Rob Birt
    • Practico
Size: 4kg
Muy bueno
Reviewed in the United States on March 22, 2026 by Federman Rafael Rondon DIaz
    • Very good for its price
Size: 4kg
Review Image by Spring Proto
For a decently cheap furnace this worked far better then I expected
Reviewed in the United States on February 28, 2026 by Spring Proto
    • Not bad
Size: 6kg
Arrived in good shape well packed I bought it to melt some silver I have and I haven't been able to get the silver to melt I may need to do some research on the silver I have. I have put brass, copper, and aluminum and it melted them with ease my honey comb did break on first use and welded its self to the bottom of the crucible so not a big deal on that, not to shaby for the price and get a different pair of gloves mine that came with it caught fire as I went to remove the crucible the 3rd time ... show more
Reviewed in the United States on November 28, 2025 by Masked out66
    • Looking good.
Size: 6kg
Looked to be in good shape on delivery. When we hooked it up to gas though, the regulator wouldn't quit leaking. Tried to confirm that all the gaskets for the regulator were there, but the parts list will only tell you "regulator" so kind of hard to confirm much. Update, the company reached out to make things right with the unit I had received. I really appreciate that and it shows a lot of integrity. Since fixing my unit we've casted several ingots and it's work exceptional well. ... show more
Reviewed in the United States on December 26, 2025 by Taylor Wade

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