3+1KG(Double crucible) Electric Digital Melting Furnace

Model: TGF3000-V1.1
Voltage: 110V
Max Temp: 1100°C (2100°F)
Power: 1800W
Dimensions: 10" W × 11.5" L × 12" H
Weight: 7.5 kg
Material: Heat-resistant metal
Melting Time: 30–45 mins
Use: Indoor home, studio, metal melting, Jewelry store

• Easy-to-use system: Designed for total beginners—no gas, no flame, just plug and melt. This fast furnace melts gold, silver, or copper in 30–45 minutes at a stable 1100°C. Over 95% first-time success rate.
• Extended and Stable Base: 30% wider base and 25% lower center of gravity for unmatched stability. UL certified, with dual anti-scald handles and high-temp insulation mesh. Tested to reduce crucible tipping risk by 80%. No deformation even after long-term use.
• Multi-Size Crucible Combination: Includes 1kg and 3kg high-purity graphite crucibles plus 5-in-1 moulds. Melts gold, silver, copper, aluminium, and more. Batch size is freely adjustable from 1Kg to 3kg. One set replaces multiple machines, boosting efficiency by 70%.
• 1800W PID Precision Temperature Control System: Temperature accuracy up to ±3°C, reaches 1100°C in 45 minutes, with a maximum temperature of 2000°F. Features automatic calibration and constant temperature maintenance, with a melting failure rate of less than 2%.
• 7-in-1 multi-functional melting kit: 7-in-1 kit includes main unit, 1kg & 3kg crucibles, 5-in-1 mould, gloves, lid, cord, and manual—no extras needed. New users complete full melt in under 2 hours on the first try.

Application & Basic Parameters

What metals can the TGF3000 resistance furnace melt?

The TGF3000 electric resistance furnace is designed for melting a wide range of metals, including aluminum, copper, silver, gold, brass, zinc, and lead. It delivers reliable performance for gold melting, jewelry making, aluminum casting, small-batch copper melting, scrap metal recycling, and DIY metalworking projects.

What are the capacity, power, and temperature specifications?

The TGF3000 features a flexible dual-crucible design with 1KG and 3KG crucibles, allowing users to choose the appropriate capacity based on different projects. It is equipped with an 1800W heating system, 110V power supply, maximum temperature up to 1150°C (2102°F), and a digital PID temperature controller for accurate and stable temperature management.

The dual-crucible design provides greater flexibility for both small and medium melting projects while improving heating efficiency.

Is the TGF3000 suitable for beginners?

Yes. The TGF3000 is designed for both beginners and experienced hobbyists. The complete kit includes essential accessories, and the intuitive PID digital controller makes temperature adjustment simple and convenient.

Compared with traditional propane furnaces, the electric heating system provides cleaner operation, easier temperature control, and a more convenient experience for home workshops, jewelry makers, and DIY metalworking enthusiasts.

Heating Performance & Temperature Control

How long does the TGF3000 take to heat up?

The TGF3000 typically reaches operating temperature within 25–40 minutes, depending on the type and amount of metal, crucible condition, and surrounding environment.

For metals with higher melting points, such as copper, proper crucible preheating and gradual material addition can improve heating efficiency and achieve better melting results.

Does the TGF3000 provide stable temperature control?

Yes. The built-in PID digital temperature controller provides precise temperature regulation and helps maintain stable heating performance throughout the melting process.

The PID system reduces temperature fluctuations, improves heat retention, and provides more consistent results, making the TGF3000 suitable for applications that require better temperature accuracy, such as jewelry making and small-scale metal refining.

What type of power supply is required?

Because the TGF3000 uses an 1800W heating system, a stable power supply is recommended for safe and reliable operation.

For the best performance, use a 20A dedicated circuit and a 12AWG heavy-duty extension cord. Using an insufficient power supply may cause breaker trips or unstable heating.

Durability & Common Issues

How durable is the TGF3000 furnace?

The TGF3000 is designed for regular hobby use and small-scale metalworking applications. With proper operation and maintenance, it can provide reliable long-term performance for melting projects.

To maximize product lifespan, avoid unnecessary overheating, inspect components regularly, and follow recommended operating procedures. Our customer support team is also available to provide troubleshooting assistance and replacement solutions when needed.

How long does the crucible last?

The lifespan of the crucible depends on the material being melted, operating temperature, and usage frequency.

When melting aluminum and silver, crucibles generally provide longer service life. Higher-temperature metals such as copper may cause faster wear due to increased thermal stress.

For extended use, we recommend keeping spare crucibles available, applying borax coating when appropriate, and avoiding unnecessary high-temperature operation.

What are common problems and solutions?

If the circuit breaker trips during operation, make sure the furnace is connected to a dedicated 20A circuit with a suitable heavy-duty extension cord.

If temperature fluctuations occur, preheat the crucible before melting and add metal gradually to maintain more stable heating.

For issues involving heating elements, temperature probes, or other components, contact our support team for professional troubleshooting and replacement assistance.

Accessories & Safety

What accessories are included with the TGF3000?

The TGF3000 comes with a complete starter kit, providing the essential accessories needed to begin melting projects.

For users who plan to complete larger or more frequent projects, additional accessories such as spare crucibles, heat-resistant gloves, borax flux, and larger casting molds can further improve the overall experience.

Is the TGF3000 safe to use?

The TGF3000 uses electric resistance heating, providing a cleaner and more controlled alternative to open-flame propane furnaces.

However, molten metal reaches extremely high temperatures and requires careful operation. Always wear proper protective equipment, including heat-resistant gloves and eye protection, and operate the furnace on a stable heat-resistant surface in a well-ventilated area.

Customer Support & Buying Value

How is customer support for the TGF3000?

ToAuto provides customer support to help users operate and maintain their TGF3000 furnace. Our team can assist with technical questions, troubleshooting, and replacement parts when needed.

Reliable after-sales support helps ensure a smoother ownership experience throughout the product lifecycle.

Is the TGF3000 worth buying?

The TGF3000 is an excellent choice for hobbyists and makers looking for a versatile electric melting furnace with reliable performance.

With its wide metal compatibility, dual crucible design (1KG + 3KG), PID temperature control, 1150°C maximum temperature, and complete starter kit, it provides a strong balance of flexibility, performance, and ease of use.

The TGF3000 is especially suitable for jewelry makers, hobby casters, small-scale refiners, and DIY metalworking enthusiasts who need a dependable solution for gold, silver, aluminum, and other metal melting projects.

Recommended Usage Tips

For the best melting results, preheat the crucible before operation, choose the correct crucible size based on your material quantity, use a dedicated 20A power circuit with a 12AWG heavy-duty extension cord, and always wear proper personal protective equipment during operation.