3KG Resistance Gold Melting Furnace 1800W

Model: TGF3000-V1
Max Temp: 1100°C (2000°F)
Power: 1800W
Item Height: 39 centimeters
Weight: 7.5 kg
Material: Ceramic
Melting Time: 25–35 mins
Use: Indoor home, studio, metal melting, Jewelry store

• Everyday Home Smelting: Designed for hobbyists, the 1800W furnace melts 3 kg of copper in 28 min—over 100% more efficient than older models. Its smart heat-transfer design turns casting into an enjoyable, accessible craft for all skill levels.
  
• Fast Melting: Melt 3 kg of copper in 25–35 min or 1 kg of silver in 18 min. With 2.1× the efficiency of prior units and 22% less energy use, finish projects faster—even within a tight weekend or class schedule.
  
• Precise Control: Upgraded PID controller delivers ±3°C accuracy (vs. ±15°C in standard furnaces), fast response, and minimal overshoot. Real-time LED display ensures reliable, professional-grade results every time.
  
• Ultra-Stable Base: Hexagonal weighted base with anti-slip silicone feet stays secure on slopes up to 15° or uneven floors. Prevents spills and accidents—ideal for balconies, garages, or classrooms.
  
• Integrated Smelting Kit: Includes furnace, 3kg & 1kg graphite crucibles, 10-cavity ingot mould, tongs, gloves, and bilingual manual. Ready in 5 minutes; 87% of beginners succeed on their first try.

Application & Basic Parameters

What metals can the TRF3000 resistance furnace melt?

The TRF3000 electric resistance furnace is designed for melting a wide range of metals, including aluminum, copper, silver, gold, lead, zinc, and brass.

It provides excellent performance for aluminum and silver melting, supports small-batch copper melting with proper preparation, and is especially suitable for gold melting, jewelry making, and precious metal applications.

The TRF3000 is ideal for:

Hobby metal casting, jewelry making, scrap metal recycling, small-scale metal refining, and DIY metalworking projects.

What are the capacity, power, and temperature specifications?

The TRF3000 features a flexible dual-crucible design that allows users to select the appropriate capacity based on different projects.

It includes 1KG and 3KG crucibles, with an 1800W heating system, 110V power supply, maximum temperature up to approximately 1150°C (2102°F), and PID digital temperature control.

The dual-crucible design provides greater flexibility for different material quantities, helping users improve melting efficiency while reducing unnecessary energy consumption.

Is the TRF3000 beginner-friendly?

Yes. The TRF3000 is designed for both beginners and experienced hobbyists who want a more precise and convenient melting solution.

The complete kit includes essential accessories, while the intuitive PID digital controller makes temperature adjustment simple and easy to manage.

Compared with traditional propane furnaces, the electric resistance heating design provides cleaner operation, easier temperature control, and a more convenient experience for home workshops.

Heating Performance & Temperature Control

How fast does the TRF3000 heat up?

The TRF3000 typically reaches operating temperature within 25–40 minutes, depending on the metal type, material quantity, crucible condition, and surrounding environment.

When melting higher-temperature metals such as copper, proper crucible preheating and sufficient heating time can improve overall melting performance.

Does the TRF3000 provide stable temperature control?

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

The PID system improves heat retention, reduces temperature fluctuation, and provides more consistent melting results.

This makes the TRF3000 especially suitable for applications requiring better temperature control, including jewelry making, gold melting, and small-scale metal refining.

What type of power supply is required?

Due to its 1800W heating power, the TRF3000 requires a stable electrical supply for reliable operation.

For best performance, we recommend using a 20A dedicated circuit and a 12AWG heavy-duty extension cord.

Using an insufficient power supply may cause breaker trips or unstable heating performance.

Durability & Maintenance

How durable is the TRF3000 furnace?

The TRF3000 is designed for light-to-moderate hobby use and small-scale metalworking applications.

With proper operation and maintenance, it can provide reliable long-term performance for regular melting projects.

To maximize product lifespan, avoid unnecessary overheating, follow recommended operating procedures, and regularly inspect components such as heating elements, temperature probes, and crucibles.

How long does the crucible last?

Crucible lifespan depends on the material being melted, operating temperature, and usage frequency.

For lower-temperature metals such as aluminum and silver, crucibles generally provide longer service life. Higher-temperature applications, such as copper melting, may result in faster wear.

To extend crucible lifespan:

Preheat the crucible gradually before use, avoid overheating, apply borax coating when appropriate, and keep spare crucibles available for frequent projects.

What are common issues 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 variation occurs, preheat the crucible properly and add material gradually to maintain more stable heating.

For issues involving heating elements, temperature probes, switches, or other components, contact ToAuto customer support for troubleshooting assistance and replacement solutions.

Regular inspection and proper maintenance can significantly improve product lifespan.

Accessories & Safety

Are the included accessories sufficient?

Yes. The TRF3000 comes with a complete accessory package designed to help users start melting projects immediately.

The dual-crucible design is one of its key advantages, providing greater flexibility for different materials and project sizes.

For long-term or frequent use, users may consider adding spare crucibles, upgraded heat-resistant gloves, borax flux, and larger casting molds for improved convenience and efficiency.

Is the TRF3000 safe to use?

The electric resistance heating design provides stable operation without an open flame, making it cleaner and more convenient compared with propane-based furnaces.

However, molten metals reach extremely high temperatures and require strict safety precautions.

Always use proper protective equipment, including heat-resistant gloves and eye or face protection. Operate the furnace in a well-ventilated area on a stable heat-resistant surface, and keep flammable materials away from the workspace.

Outdoor operation or use in a properly ventilated garage is recommended whenever possible.

Customer Support & Buying Value

How is customer support for the TRF3000?

ToAuto provides responsive customer support to help users operate and maintain their TRF3000 furnace.

Our support team can assist with technical questions, troubleshooting, and replacement parts related to heating elements, temperature probes, and other components.

Reliable after-sales support helps ensure a smooth ownership experience.

Is the TRF3000 worth buying?

Yes. The TRF3000 is an excellent choice for serious hobbyists and makers looking for a versatile electric melting furnace with precise temperature control.

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

The TRF3000 is especially suitable for:

Jewelry makers, advanced hobby casters, small-scale refiners, and DIY metalworking enthusiasts.

Compared with entry-level melting furnaces, the TRF3000 provides improved temperature control, greater flexibility, and a more professional melting experience.

Recommended Usage Tips

For the best melting results and longer service life, preheat the crucible before operation, apply borax coating when appropriate, use a dedicated 20A circuit with a 12AWG heavy-duty extension cord, select the correct crucible size based on material quantity, avoid unnecessary overheating, and always wear proper personal protective equipment (PPE).