ToAuto 3KG 1800W Electric Gold Melting Furnace for Gold Silver Copper
ToAuto TRF3000 is an 1800W PID resistance melting furnace for gold, silver, copper, and jewelry workshop casting. Stable digital temperature control helps you hit target melt temps without babysitting the dial.
- 1800W heating with PID temperature control
- About 3KG capacity for everyday casting and refining work
- US / UK / EU plug options for shop setups
- Built for makers, jewelers, and small-batch metal studios
Need accessories or a size comparison? Browse our electric melting furnaces or email support@toautotoolglobal.com.
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
-
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
TOAUTO New TRF3000 Resistance Furnace-Metal Melting Furnace
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
Benjamin
Excellent Furnace for Metal Melting
I've been very happy with this melting furnace. It heats up surprisingly fast, reaches the set temperature without any trouble, and maintains consistent heat throughout the melting process. The digital controls are simple to use, making it easy to get accurate results whether I'm melting gold, silver, copper, or aluminum. The included graphite mold is a nice bonus and feels durable, while the overall construction of the furnace is solid and well-made. Everything arrived well-packaged, was easy to set up, and worked exactly as expected right out of the box. It has made my metal melting projects much more efficient, and I would definitely recommend it to anyone looking for a reliable, high-quality furnace at a reasonable price.
Brandon Campbell
Solid setup, heats up really fast
Got this furnace to melt down some scrap copper and silver I had laying around, and it does exactly what you would want. I melted down a batch of copper in about half an hour which was perfect. The digital temp control is super easy to set, and it stays steady without jumping all over the place. I've had other furnaces that wobble so I really like the hex base design on this one because it sits totally flat and stable on my workbench with zero wobble.
It is awesome that it comes with literally everything you need to get going right out of the box. Getting both the 1KG and 3KG crucibles, the mold, plus the tongs and gloves makes it a really solid value. Honestly just a great kit for the garage.
Luca calabro
Gold Furnace was awesome
This gold melting furnace exceeded my expectations in every way. It heats up quickly, maintains a consistent temperature, and melts gold efficiently without any issues. The controls are easy to use, and the overall build quality feels durable and well-made. It has made my melting process much faster and more reliable. I highly recommend this furnace to anyone looking for a dependable and high-performing gold melting setup.
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