ToAuto 5KG Electric Gold Melting Furnace for Gold Silver Copper Casting
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5KG Large Capacity: Handle bigger melting batches with fewer reloads.
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1800W Powerful Heating: Efficient resistance heating for everyday metal casting.
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Up to 2192°F (1200°C): Melt aluminum, silver, gold, brass, and small copper batches.
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Easy Temperature Control: Rotary knob and LED display for simple temperature adjustments.
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Stable & Ready to Cast: Reinforced hexagonal base with a graphite crucible and essential accessories.
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 Professional Partner
UPGRADED TRF3OOO RESISTANCE FURNACE Upgrade Your Casting Game & Elevate Your Crafting.
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
Tyler
Easy to use
I wanted to start smelting my own items out of metal so I bought this device. It definitely is well constructed metal furnace and easy to use. All I have to do is plug it in and turn it on and it heats up fairly quick for an electric furnace. Throw your metal in and use the included tongs to pull the graphite insert out and pour your metal. I'm excited to make all kind of different things with this, I just need to learn how to start using sand to pour in.
Dave
TuAuto 3000-v1 for copper silver and aluminum
I use my TuAuto furnace to melt copper wire cut into 4" pieces in a 2k crucible at 1100c and it works great. I also use my TuAuto furnace to melt silver shot and scraps of jewelry in a 2k crucible at 1050c for open casting in graphite molds with great results. I also cast aluminum at 650c from 4" wire with a 3k crucible to do open sand casting and graphite molds with good results. Follow the instructions provided and be safe. Have fire extinguishers and personal protective equipment when using your furnace. Be sure to do a proper break in cycle for your furnace and all your crucibles. Check your crucible and furnace before each use for wear and or damage. Don't run at high heat levels for more then 2hours (copper & silver). Make sure the molds are pre heated to remove any moisture before pouring. Have fun and be safe.
M.W.
Great furnace and ever greater customer service!
So far this is a great furnace, though it didn't start out that way but customer service was FANTASTIC! I was melting 32gms of scrap copper and it too SOOOO long, over an hour. I contacted customer service and the representative sent me a video of how to reprogram the PID so that the furnace would heat up 50 degrees Celsius higher than max, and boom, it melted 65 gms of copper in 15 minutes.
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