ToAuto 3+1KG Dual Crucible Electric Metal Melting Furnace for Gold Silver Copper
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1400W Heating Power: Reaches up to 2012°F (1100°C) for gold, silver, copper, and aluminum.
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Precise PID Control: Easily set and monitor temperatures with a digital display.
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Upgraded Stability & Insulation: Wider base and heat shield for a steadier, more protected setup.
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Convenient Side Handles: Designed for easier handling when the furnace is cool.
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Complete Melting Kit: Includes 1KG & 3KG crucibles, an ingot mold, and casting essentials.
Get started with your ToAuto Melting Furnace. Find model-specific setup instructions, safe melting and pouring guidelines, and maintenance tips for your furnace and crucible.
Most orders are processed within 1–3 business days. Delivery times vary by destination, with an estimated 3–7 business days for U.S. orders after dispatch. Tracking details will be emailed once your order ships.
Your ToAuto Melting Furnace is backed by a 12-month warranty for eligible manufacturing defects. Our support team can help with troubleshooting, replacement parts, and warranty service.
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Compare Melting Furnaces
Electric（Basic）
Electric（Std）
High Electric（HP）
Basic PID
Precise PID
Digital PID
45–60 min
25–35 min
25–35 min
2000°F
2000°F
2100°F
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1.0 insulation
2.0 insulation
A-base
Hexagonal base
Reinforced hex base
3 kg
3 kg / 5 kg
3 kg
1800 W
1800 W
1800 W
110V / 220V
110V / 220V
110V / 220V
6 Kg
7.5 Kg / 8 Kg
7.5 Kg
Your Long-Term Home Smelting Partner-TOAUTO TGF3000-V1.1 Small Job Furnace
TOAUTO TGF3000-V1.1 Melting Furnace is for a niche market and for people starting out on their melting journey.
Whether you want to melt a load of scrap metal or create a unique gift, using an electronic melting furnace will save you heaps of time, not to mention the ease of melting 1000g of metal.
Foundry Metalwork is surprisingly easy and affordable, and with the TOAUTO TGF3000-V1.1 Electric Melting Furnace, a full line of furnaces and smelting products, you can easily turn scrap metal into something fancy, like ingots, special parts, and 3D casting ornaments. METAL MELTING MADE EASY!
FAQ
How do I care for my crucible and lid for longer use?
High-temperature cycling increases structural stress. Low-density or recycled graphite cracks within 5–10 melts. Our high-purity crucible is rated for 50–100 cycles. Early cracking usually means poor material quality, not user error.
Why does it take 60 minutes to melt copper while others only need 20 minutes?
Real melting speed depends on actual wattage, insulation thickness, and temperature consistency. Some products claim “1800W” but deliver far less. A true 1800W+ furnace melts 300g copper in 20–25 minutes.
Will the furnace smoke, spark, or trigger GFCI during normal use?
No. Smoke, sparks, and frequent GFCI trips indicate electrical or coil insulation faults. A proper furnace uses thick insulation, grounded chassis, GFCI protection, and overheat safeguards.
Will the pliers or molds break or be too small?
Cheap pliers deform above 500°C. Good pliers must hold 1200°C red-hot crucibles safely. Molds under 100g capacity are impractical. A proper kit includes heat-resistant pliers and molds matching the crucible size.
Why do cheap furnaces become more expensive over time?
Thin crucibles, weak insulation, and low-grade electronics wear out faster. Real cost includes power usage, consumables, and downtime — not just the purchase price. Durable systems lower long-term cost per kilogram.
Does “Max 1100°C” mean accurate temperature control?
No. Max temperature ≠ stability. Many units swing ±50°C, causing oxidation and bubbles. A PID controller holds ±5°C accuracy, reducing defects by up to 75%.
How do I reduce carbon buildup inside the furnace?
Carbon builds up when the inner lining is rough. A removable, smooth alumina lining allows quick wiping after each melt and prevents residue from hardening.
Are the instructions difficult for beginners?
Beginners often skip steps like crucible preheating or grounding checks. If unclear, contact support or follow our video tutorials. The wrong operation can cause overheating or cracking.
Can I melt aluminum, silver, or gold?
Yes. Use high-purity graphite crucibles and match temperatures. Avoid cross-contamination by dedicating one crucible per metal.
Testimonials
Kyle webb
Good build quality.
So far this tool has been an awesome addition to my hobby. It has good build quality, controls easily and heats at an appropriate rate. I would only recommend getting a bigger mold as I did. Robust design and high quality crucibles. Recommend 100%!
John
Works great and well made
This is my first time having a product like this and I was not sure what to expect, but it works really well. The quality stands out right away and it feels well made, not cheap or flimsy. It's actually way heavier than I was expecting, so be prepared, it's not cheap or light material! It performs consistently and does exactly what I need it to without any issues. Setup was fairly simple and I was able to get everything going pretty quickly. It was easy to use and fit without any hassle. Overall, I am very happy with it and would definitely recommend it for anyone who has a use for it.
Shanara Smale
Amazing customer service from manufacturer
The customer service on this was amazing. Two years after purchase the temperature probe went bad and the furnace stopped heating. I reached out to TOAUTO and they were extremely helpful in correcting the issue. They are very prompt in returning emails and very professional. I would definitely buy from them again.
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