Multi Tilting Induction Foundry Furnace
20–100kg | Gold, Silver, Copper & Alloys | Button & Manual Tilt | 4 Models: RTF-35/45/70/90
SuperbMelt Multi Tilting Induction Casting Furnace is specially designed for melting 20kg to 100kg of gold, silver, copper, alloys, and other precious metals.
Unlike conventional casting systems that perform only one pouring operation per melting cycle, the Multi Tilting system enables multiple continuous castings from a single melt, significantly reducing production time and energy consumption.
This innovative design maintains a stable casting temperature throughout the casting process, ensuring consistent product quality while minimizing the loss of precious metals such as gold, silver, platinum, and palladium. By allowing multiple molds to be cast sequentially without repeated melting, the machine greatly improves production efficiency, reduces operating costs, and enhances the consistency of finished products.
- SuperbMelt induction foundry furnace adopts solid-state technology, which is the latest and most advanced IGBTs module available worldwide. rgy than KGPS,100% full load.
- The current between the furnace’s coil and the power supply is insulated, which is the safest guarantee for users.
- SuperbMelt induction foundry furnace is an easy, convenient and practical way to melt precious metals. It has a split design that allows you to tilt liquids with the push of a button or with a manual lever if you prefer to pour.
- The furnace is equipped with a new type of high-performance asynchronous generator, which can reach the melting point significantly faster and ensure the full mixing and homogenization of the molten metal.
- The precise electromagnetic shielding of the furnace ensures that the energy generated by induction is as small as possible. This method also greatly reduces the electromagnetic load of the user.
- Better process control with a high degree of controllability and repeatability, 24H continuous works realizes a high production rate.
- Efficient circuit with low energy consumption, reliable, easy to maintain and service, easy to install and simple to operate.
- Installation and maintenance are convenient, and IGBT technology saves 15-30% energy compared to KGPS 100% at full load. It can be done via video or our manual guide. This reduces the cost you need to pay for installation by foreign engineers.
- The occupied land for the gold melting furnace is less than 2 square meters. Low pollution, low noise. 24 hours of uninterrupted work, to satisfy your long-term melting.
- It is convenient to replace the crucible different metal materials smelting.
- SuperbMelt multi tilting melting furnace with multi-protective functions to over-voltage, over-current, less water, over-heating with low fault rate and is safe and reliable.
Power Supply Parameter of Multi Tilting Induction Foundry Furnace Parameters
| Model | RTF-35 | RTF-45 | RTF-70 | RTF-90 | |
| MAX input power | 35KW | 45KW | 70KW | 90KW | |
| MAX input current | 51A | 68A | 105A | 135A | |
| Input voltage | Three-phase 340V ~420V 50/60Hz | ||||
| Oscillation frequency | 1K~20KHz | ||||
| Requirement of cooling water | Hydraulic pressure | ≥0.3Mpa | |||
| Flow rate | ≥20L/Min | ||||
| Temperature of water | ≤45℃ | ||||
| Power supply | 70*40*100cm | ||||
| Furnace body | 80*70*90 cm | ||||
| Weight | 220kg | 230kg | 240kg | 250kg | |
Melting Capacity Parameter of Multi Tilting Silver Melting Furnace
| Model | Fe, ss | Cu, Au, Ag | Al, Al-alloy |
| RTF-35 | 10kg | 30kg | 10kg |
| RTF-45 | 18kg | 50kg | 18kg |
| RTF-70 | 25kg | 80kg | 25kg |
| RTF-90 | 40kg | 120kg | 40kg |
| Remark: Above melting capacity sheet for general reference; Melting duration: When the crucible is hot,20~30min./workload; When the crucible is cold(first melt),40~50min./ workload. | |||
Graphite crucible for gold/Silver melting Furnace
Any Question About SuperbMelt Multi Tilting Induction Foundry Furnace
Shaking and dumping:
When the solution is poured by remote control j melted metal n can be poured more safely into the feeler
Fast and uniform melting of precious metals such as gold and platinum, greatly improving the quality of melting
The SuperbMelt induction foundry furnace makes melting precious metals simple, handy, and useful. With its split design, you may tilt liquids with the touch of a button or manually with a lever if you’d rather pour.
Why You Could Choose Superbmelt
2 years warranty
The warranty for our machine is one year longer than the warranty provided by other factories.
ISO CE SGS approved
Professional certification bodies certify that the machines are of high quality.
Strong service team
We will give response within 24 hours against your problem by our professional engineer.
More options available for the Induction Foundry Furnace
SuperbMelt Induction Foundry Furnace Guide
How the Multi Tilting Induction Foundry Furnace Works
- Features of the Induction Electric Melting Furnace:
Small Size, Lightweight, High Efficiency, and Energy-saving: The machinery is lightweight and of a small size, and it provides high efficiency and energy-saving advantages.
Low Ambient Temperature, Minimal Smoke, Favourable Workplace: The furnace maintains a low ambient temperature, emits little smoke, and offers a comfortable workplace.
Simple Furnace Operation; Reliable Melting Process: The furnace’s operation is straightforward, and the melting process is trustworthy.
High-quality Castings, Even Metal Composition, little Material Loss, Uniform Heating: The furnace assures an even distribution of metal composition, little material loss, and high-quality castings.
Quick melting, simple temperature control, and great jewellery application makers and Mining Facilities: For jewellery makers and mining facilities, the furnace allows quick melting and simple temperature control.
- How the Induction Electric Melting Furnace works
Eddy currents are produced within the material by the induction furnace’s alternating electromagnetic field, which causes heating or melting. This alternating magnetic field’s churning action encourages uniformity of composition and temperature inside the furnace. Up to 1250°C can be reached for forging heating, while up to 1650°C may be reached for melting.
In order to achieve certain quality standards, the induction furnace may also be used to heat or melt materials in a vacuum or protective atmospheres like argon or neon. The annealing or melting of soft magnetic alloys, high-resistance alloys, platinum group alloys, heat-resistant, corrosion-resistant, wear-resistant alloys, and pure metals may all be done using the induction furnace to great benefit. Induction melting furnaces and induction heating furnaces are the two main categories of induction furnaces.
- Multi Tilting Design: How It Differs from Standard Induction Furnaces
Unlike single-body induction furnaces that require operators to stop production during pouring, the Multi Tilting Induction Foundry Furnace is built around a split-body architecture that separates the power supply unit from the furnace body. This allows multiple furnace bodies (RTF-35, RTF-45, RTF-70, or RTF-90) to share a single power supply — meaning one operator can manage continuous melting cycles across multiple crucibles without downtime between pours.
The tilting mechanism supports two modes: button-controlled electronic tilting for hands-free pouring into molds, and manual lever tilting for situations where the operator needs precise directional control. Both modes allow the molten metal to be directed into molds without any physical contact with the liquid metal, significantly reducing burn risk during high-volume production runs.
For foundries running 20–100kg batches of gold, silver, copper, or alloys on a continuous schedule, this multi-body design translates directly into higher throughput per shift — a key advantage over chain tilting or motor tilting alternatives that operate as single-body systems.
Which Industries Use the Multi Tilting Induction Foundry Furnace?
The SuperbMelt Multi Tilting Induction Foundry Furnace (RTF series) is designed for industrial-scale precious metal processing. Its 20–120kg batch capacity, continuous 24-hour operation, and multi-body configuration make it a standard choice across several high-demand industries.
Gold and Silver Refineries Precious metal refineries processing raw ore concentrates, scrap gold, or reclaimed silver require furnaces that can handle large, consistent batch sizes without interruption. The RTF-70 and RTF-90 models (80kg and 120kg Cu/Au/Ag capacity respectively) support the throughput volumes needed for refinery-grade operations, with IGBT technology reducing energy consumption by 15–30% compared to older KGPS systems.
Large-Scale Jewelry Manufacturers Jewelry factories producing high volumes of gold and silver castings — including wedding bands, chains, pendants, and custom pieces — rely on consistent melt quality and rapid cycle times. The RTF-45’s 50kg gold capacity allows a single operator to manage multiple casting rounds per shift, while the electronic tilting system ensures clean, splash-free pours into investment casting molds.
Copper and Brass Foundries For foundries working with copper alloys, brass, and bronze, the RTF series supports continuous melting of Cu/Au/Ag metals up to 120kg per batch (RTF-90). The water-cooling circulation system maintains stable furnace body temperature throughout extended production runs, preventing thermal fatigue and extending crucible service life.
Precious Metal Recovery and Recycling Plants Facilities that process scrap gold, silver jewelry, electronic waste, or industrial precious metal residues need furnaces capable of handling mixed-material batches with unpredictable compositions. The RTF series’ adjustable frequency (1K–20KHz) and variable power output allow operators to tune melting parameters for different alloy compositions in the same session.
Minting and Gold Bar Production Gold and silver bar manufacturers and minting facilities require precise batch weights and consistent metal homogeneity. The asynchronous generator in the RTF furnace ensures thorough mixing of the molten metal pool, producing uniform composition throughout each batch — critical for producing bars and coins that meet assay standards.
Multi Tilting vs Chain Tilting vs Motor Tilting: Which Induction Furnace Do You Need?
SuperbMelt offers three tilting configurations for industrial induction melting furnaces. Each is designed for a different production environment and operational requirement. The comparison below will help you identify which system matches your foundry’s workflow.
| Multi Tilting (RTF Series) | Chain Tilting | Motor Tilting | |
|---|---|---|---|
| Capacity | 20–120kg (Cu/Au/Ag) | 10–50kg | 10–100kg |
| Tilting method | Button (electronic) + manual lever | Chain drive mechanism | Motor-driven automatic |
| Multiple furnace bodies | ✅ Yes — share one power supply | ❌ Single body | ❌ Single body |
| Best for | High-volume continuous production, multi-batch operations | Mid-volume foundries needing reliable chain-driven control | Foundries prioritizing fully automated hands-free pouring |
| Power range | 35KW – 90KW | 15KW – 90KW | 25KW – 160KW |
| Operator control | Button or manual, operator choice | Manual chain control | Fully motor-automated |
| Ideal users | Gold refineries, large jewelry factories, copper foundries | Mid-size precious metal workshops | Large-scale ferrous/non-ferrous foundries |
When to choose Multi Tilting (RTF series): If your operation runs continuous batches of gold, silver, or copper and you need one power supply to serve multiple furnace bodies — reducing capital investment while maintaining output — the RTF series is the right choice. The dual-mode tilting (button + manual) gives operators flexibility that single-mode systems cannot match. Recommended for: gold refineries, jewelry batch manufacturers, precious metal recycling plants.
When to choose Chain Tilting: If your production volume is in the 10–50kg range and you prefer a robust, mechanically simple tilting system with lower maintenance requirements, the chain tilting furnace is a reliable mid-range option. The chain drive provides stable, predictable pouring control suitable for silver, copper, and gold alloy applications.
When to choose Motor Tilting: If your foundry processes large batches of ferrous or non-ferrous metals with minimal manual intervention, the motor tilting furnace offers the highest level of automation. The motor-driven system eliminates the need for an operator during the pour cycle, making it the preferred choice for steel, iron, and high-volume non-ferrous production lines.
Not sure which configuration fits your production requirements? Contact the SuperbMelt engineering team with your daily output target, metal type, and batch weight — we will recommend the right model and configuration for your specific foundry setup.
SuperbMelt induction foundry furnace Specifications
- It uses the IGBT+CPU variable frequency induction heating system that was invented in Germany.
- Intelligent control system for Siemens PLC for simple operation.
- This apparatus can melt precious metals such as gold, silver, copper, K gold, alloys, and others.
- The apparatus can melt up to 50 kg of gold, and its capacity is adaptable.
- The furnace has a cooling water circulation protection feature that maintains the furnace’s surface at a consistent temperature, significantly lowering the possibility of workers being burned by high temperatures while processing.
The induction split-type melting furnace, with a maximum batch capacity of 50kg of gold (RTF-45 model), is especially made for high-volume gold melting. It has good performance stability and can quickly heat precious metals.
To assure the safety of the production process, it has overcurrent, overvoltage, and water shortage protection.
The furnace has an electronic tilting feature that enables the metal solution to be poured into moulds without coming into touch with anything.
RTF-35 vs. RTF-45 vs. RTF-70 vs. RTF-90: How to Select the Right Model
RTF-35 — Entry-Level Industrial Capacity (30kg Gold)
The RTF-35 is the starting point for foundries and jewelry workshops that have outgrown desktop or small-capacity furnaces and need reliable, continuous-duty melting at the 20–30kg range. At 35KW input power, it handles gold, silver, and copper batches up to 30kg per cycle. For small jewelry manufacturers or precious metal recyclers processing under 150kg of gold or silver per day, the RTF-35 provides industrial-grade reliability at the lowest operating cost of the RTF series. The compact footprint (furnace body: 80×70×90cm) makes it practical for workshops with limited floor space.
RTF-45 — Most Popular Configuration (50kg Gold Melting Furnace)
The RTF-45 is the most widely used model in the RTF series, designed specifically for operations requiring a 50kg gold melting furnace with consistent batch-to-batch performance. At 45KW, it reaches melting temperature faster than the RTF-35 while staying within a power budget that most workshop electrical installations can accommodate (three-phase 340V–420V, 68A). For mid-size jewelry manufacturers, silver refiners, and copper foundries running multiple shifts, the RTF-45 balances capacity, speed, and running cost more effectively than any other model in the range. If you are unsure which model to choose and your daily gold or silver output is between 150–300kg, the RTF-45 is the recommended starting point.
RTF-70 — High-Capacity Production (80kg Induction Furnace)
The RTF-70 steps up to 70KW input power and 80kg capacity for gold, silver, and copper — making it the right choice for foundries running high-volume precious metal processing or large copper and brass casting operations. At 105A maximum input current, it requires adequate workshop electrical infrastructure, but delivers proportionally faster melt cycles and higher throughput. Large jewelry manufacturers producing high-volume casting runs, copper alloy foundries, and gold processing plants handling 300–500kg of precious metals per day will find the RTF-70 offers the best balance of capacity and operational efficiency in the RTF series. As an 80kg induction furnace, it also handles iron and stainless steel at 25kg per batch, making it suitable for mixed-metal foundries.
RTF-90 — Maximum Output (120kg Induction Furnace for Gold Refineries)
The RTF-90 is the highest-capacity model in the RTF series, delivering 90KW of input power and a maximum batch capacity of 120kg for gold, silver, and copper. It is engineered for gold refineries, large-scale precious metal processing plants, and industrial copper foundries where continuous high-volume output is the primary requirement. At 135A maximum input current and 250kg machine weight, the RTF-90 is a fixed-installation industrial furnace. Daily output of 500kg or more of gold or silver is within its operating envelope when run in combination with additional furnace bodies sharing the same power supply — the core advantage of the multi-tilting architecture. For operations that previously required multiple separate furnace installations, the RTF-90 multi-tilting system can consolidate production onto a single power supply, reducing capital expenditure and floor space requirements simultaneously.
Not sure which RTF model is right for your operation?
The four key questions to answer before choosing are: What is your target batch weight per melt cycle? What metal are you primarily processing (gold/silver/copper or iron/aluminum)? How many production hours per day does your foundry run? And what is your facility’s available electrical supply rating?
Contact the SuperbMelt engineering team with your answers — we will recommend the exact RTF configuration, crucible specification, and cooling system setup to match your production requirements and provide a factory-direct price quote with no distributor markup.
Induction Foundry Furnace FAQ
- 1. What is the melting capacity of the RTF-45 and RTF-90 models?
- 2.How long does it take to melt 50kg of gold with the induction foundry furnace?
- 3. What is the difference between multi tilting and chain tilting induction furnace?
- 4. How do I choose the right RTF model (RTF-35/45/70/90) for my production needs?
- 5. How much does a multi tilting induction foundry furnace cost?
1. What is the melting capacity of the RTF-45 and RTF-90 models?
The RTF-45 and RTF-90 are the two most commonly selected models in the SuperbMelt Multi Tilting Induction Foundry Furnace range, and their capacities differ significantly based on the metal being processed.
RTF-45 melting capacity:
- Gold, silver, copper (Cu/Au/Ag): 50 kg per batch
- Iron and stainless steel (Fe/SS): 18 kg per batch
- Aluminum and aluminum alloys: 18 kg per batch
- Input power: 45 KW | Max current: 68A
RTF-90 melting capacity:
- Gold, silver, copper (Cu/Au/Ag): 120 kg per batch
- Iron and stainless steel (Fe/SS): 40 kg per batch
- Aluminum and aluminum alloys: 40 kg per batch
- Input power: 90 KW | Max current: 135A
Both models operate on three-phase 340V–420V 50/60Hz power supply and share the same furnace body dimensions (80×70×90cm) and cooling water requirements (≥20L/min flow rate, ≤45°C water temperature). The key difference is throughput: the RTF-90 processes four times the gold and silver volume per batch compared to the RTF-35, making it the standard choice for refineries and large-scale foundries running continuous production.
For a full comparison of all four RTF models (RTF-35, RTF-45, RTF-70, RTF-90), refer to the parameters table above or contact the SuperbMelt team for a configuration recommendation based on your daily output target.
2. How long does it take to melt 50kg of gold with the induction foundry furnace?
With the RTF-45 model (the standard 50kg gold melting furnace in the RTF series), melting time depends on the starting temperature of the crucible:
- Hot crucible (already at operating temperature): 20–30 minutes per 50kg gold batch
- Cold crucible (first melt of the day): 40–50 minutes for the initial batch
From the second batch onward, the crucible retains heat from the previous melt, so each subsequent 50kg gold cycle completes in 20–30 minutes. For a foundry running 8-hour shifts, this translates to approximately 10–14 melt cycles per shift after the initial warm-up — or roughly 500–700kg of gold processed per shift on a single RTF-45 unit when operating continuous cycles.
For higher throughput, the RTF-70 (80kg per batch) and RTF-90 (120kg per batch) reduce the number of cycles required to hit the same daily output target, lowering labor and energy cost per kilogram of metal processed. The Multi Tilting architecture also allows multiple furnace bodies to share one power supply, enabling back-to-back melt cycles without waiting for a single furnace to complete its pour and cool cycle.
Melting time is consistent across gold, silver, and copper at similar batch weights. Metals with higher melting points (such as platinum at 1,768°C) require longer cycle times and are handled by SuperbMelt’s dedicated platinum melting furnace range.
3. What is the difference between multi tilting and chain tilting induction furnace?
Both the Multi Tilting and Chain Tilting induction furnaces from SuperbMelt use IGBT medium-frequency induction technology and support continuous 24-hour operation, but they differ in three important areas: tilting mechanism, furnace body configuration, and production scale.
Tilting mechanism: The Multi Tilting furnace (RTF series) offers two tilting modes — button-controlled electronic tilting and manual lever tilting — giving operators the choice of hands-free automated pouring or direct manual control during each pour cycle. The Chain Tilting furnace uses a chain drive mechanism for a single, consistent tilting motion that is mechanically robust but does not offer the electronic button option.
Furnace body configuration: The Multi Tilting design separates the power supply from the furnace body, allowing multiple furnace bodies to share a single power supply unit. This means a foundry can run continuous melt cycles — loading the next crucible while the previous batch is being poured — without purchasing additional power supply units. The Chain Tilting furnace is a single-body system: one power supply, one furnace body, one melt cycle at a time.
Production scale: The Chain Tilting furnace covers capacities from 10kg to 50kg of precious metals and suits mid-size workshops running single-shift operations. The Multi Tilting RTF series covers 30kg to 120kg per batch and is designed for foundries and refineries that need to maximize throughput across extended operating hours.
In summary: if your priority is mechanical simplicity and mid-volume production, chain tilting is a reliable choice. If your priority is continuous high-volume output with flexible pouring control across multiple furnace bodies, the multi tilting RTF series is the right configuration.
4. How do I choose the right RTF model (RTF-35/45/70/90) for my production needs?
Choosing the right RTF model comes down to four variables: your target batch weight, your primary metal, your daily output requirement, and your facility’s electrical supply capacity.
Step 1 — Determine your batch weight per melt cycle. Match your required batch weight to the RTF model that covers it:
- Up to 30kg gold/silver/copper per batch → RTF-35
- Up to 50kg gold/silver/copper per batch → RTF-45 (most popular)
- Up to 80kg gold/silver/copper per batch → RTF-70
- Up to 120kg gold/silver/copper per batch → RTF-90
Step 2 — Check your electrical supply. Higher-capacity models require higher current draw. Confirm your facility can support the model before purchasing:
- RTF-35: 51A maximum input current
- RTF-45: 68A maximum input current
- RTF-70: 105A maximum input current
- RTF-90: 135A maximum input current
All models require three-phase 340V–420V 50/60Hz supply.
Step 3 — Calculate your daily output requirement. Divide your daily output target by the batch capacity of the model you are considering, then multiply by 20–30 minutes per hot cycle to see if the model can meet your shift schedule. If a single RTF-45 cannot reach your daily target within one shift, consider either upgrading to RTF-70/RTF-90, or adding a second furnace body to share the same power supply.
Step 4 — Consider your metal mix. If you primarily process gold, silver, and copper, all four RTF models are optimized for these metals and deliver the capacities listed above. If you also process iron, stainless steel, or aluminum as a significant portion of your output, note that the Fe/SS and Al capacities are lower than the Cu/Au/Ag capacities at each model level (for example, the RTF-45 handles 50kg of gold but only 18kg of iron per batch).
If you are still unsure after working through these steps, contact the SuperbMelt engineering team with your daily output target, primary metal, and electrical supply rating — we will recommend the exact model and furnace body configuration for your operation.
5. How much does a multi tilting induction foundry furnace cost?
The price of a SuperbMelt Multi Tilting Induction Foundry Furnace varies based on three main factors: the RTF model selected (RTF-35 through RTF-90), the number of furnace bodies included in the configuration, and any additional accessories or customization requirements.
Key factors that affect the final price:
- Model and power rating — The RTF-35 (35KW) is the entry-level configuration; the RTF-90 (90KW) is the highest-capacity model. Each step up in power and capacity carries a corresponding price increase.
- Number of furnace bodies — The multi-tilting architecture allows one power supply to support multiple furnace bodies. A single-body configuration costs less than a dual or triple-body setup, even though all configurations share the same power supply unit.
- Crucible specification — Graphite crucibles for gold and copper, clay-graphite crucibles for silver, or silicon carbide crucibles for high-temperature applications are priced differently and affect the total package cost.
- Shipping and installation — The RTF furnace bodies weigh 220–250kg depending on the model. Freight, customs, and on-site installation support (available via video guidance or on-site engineer) are factored into the total landed cost.
SuperbMelt supplies all RTF models factory-direct with no distributor markup, which typically results in 15–30% lower pricing compared to purchasing through regional resellers. All models are covered by a 2-year warranty — one year longer than the industry standard.
To receive an accurate price quote for the RTF model that fits your production requirements, contact the SuperbMelt sales team with your target batch weight, primary metal type, required number of furnace bodies, and destination country. Quotes are typically provided within 24 hours.
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