ALUMINUM ELECTRIC -
ROUND CRUCIBLE MELTING FURNACES
EM-A SERIES
Our versatile EM-A Series aluminum electric melting furnace is a traditional round crucible furnace that is suitable for a wide variety of casting and melting applications. Economically priced, this furnace is easy to install and simple to run. The standard control panel is simple and easy to use and can be upgraded to a PLC controlled system with a color HMI touch screen.
TECHNICAL OVERVIEW
The EM‑A Series is engineered for aluminum foundries and casting facilities that require clean, stable, and energy‑efficient melting performance. Powered by electric resistance heating, the furnace eliminates combustion gases, burner maintenance, and flame‑related oxidation — producing a consistently clean melt with minimal dross formation. The round crucible design ensures uniform heat transfer and stable temperature distribution, while the stationary configuration provides long service life with minimal mechanical wear. With precise temperature control, quiet operation, and low maintenance requirements, the EM‑A Series is an ideal melting solution for facilities that prioritize metallurgical cleanliness, process consistency, and operational efficiency.
Electric melting offers major advantages in melt quality, temperature accuracy, and simplicity. Unlike gas‑fired furnaces, the EM‑A Series produces no combustion byproducts, significantly reducing oxidation and preventing hydrogen pickup — two common causes of porosity in aluminum castings. The round crucible geometry promotes even heat distribution, minimizing hot spots and reducing dross formation. Compared to tilting furnaces, the stationary EM‑A Series has fewer moving components, resulting in lower maintenance costs and longer operational life. For facilities seeking clean melting, precise temperature control, and low operating costs, the EM‑A Series provides a dependable and economical solution.
The EM‑A Series combines clean electric melting with durable industrial construction and user‑friendly operation. High‑performance electric heating elements deliver fast heat‑up and stable temperature control, while thick refractory insulation ensures excellent thermal efficiency. The round crucible provides consistent heat transfer and is ideal for melting ingots, sows, runners, and clean scrap. Optional digital temperature controllers, safety interlocks, and automation packages enhance process consistency and operator safety. With its compact footprint, low noise level, and minimal maintenance requirements, the EM‑A Series is a reliable melting solution for aluminum foundries, die‑casting plants, and precision casting operations.
GO CARBON NEUTRAL
The Furnace of The Future is Here Now.
Carbon is becoming a very big issue globally. Our EM-A Series electric resistance furnaces give you a simple way to go CO2 neutral and actually give you a much better melt due to less turbulence. Plus, this series offers excellent efficiency and uniform melting and holding capabilities, and generally creates less porosity in the alloy being melted than gas furnaces.
HIGHEST RETURN ON INVESTMENT
We Give You More Furnace For Your Money.
To be competitive today’s economy requires that manufactures run their operations more efficiently and cost effectively than ever before. We offer the highest ROI (return on investment) in the industry. Dynamo gives you high-quality products for a reasonable investment and with more features than any other company. Simply put, we give you the most bang for your buck!
HIGH THERMAL EFFICIENCY BY DESIGN
We Add Significantly More Insulation to Our Furnaces Than Most Manufacturers.
The result is excellent efficiency which means a furnace which not only burns less gas, but is actually not dangerous to touch.
THICKER INSULATION
We Add Way More Insulation to Our Furnaces Than Most Manufacturers.
The result is even greater efficiency and a solid, sturdy construction which is hard to beat.
NINE STANDARD SIZES
Flexible Range of Applications.
Available from a small 110 lbs melting capacity all the way to 660 lbs, the EM-A Series electric resistance dip out melting furnaces allow for a wide range of applications.
| Item | US Standard (Al) | Metric Standard (Al) | ||
| Model | Holding | Melting/h * | Holding | Melting/h * |
| EM-A-330 | 330 lb | 110 lb | 150 kg | 50 kg |
| EM-A-550 | 550 lb | 175 lb | 250 kg | 80 kg |
| EM-A-660 | 660 lb | 220 lb | 300 kg | 100 kg |
| EM-A-770 | 770 lb | 240 lb | 350 kg | 110 kg |
| EM-A-880 | 880 lb | 275 lb | 400 kg | 125 kg |
| EM-A-1100 | 1100 lb | 330 lb | 500 kg | 150 kg |
| EM-A-1300 | 1300 lb | 350 lb | 600 kg | 160 kg |
| EM-A-1750 | 1750 lb | 440 lb | 800 kg | 200 kg |
| EM-A-2200 | 2200 lb | 660 lb | 1000 kg | 300 kg |
Applications For The EM-A Series Aluminum Crucible Melting Furnace
The EM‑A Series is engineered for aluminum foundries that require exceptionally clean molten metal with minimal oxidation and hydrogen pickup. Electric resistance heating eliminates combustion gases and flame impingement, producing a stable, low‑dross melt. The round crucible design ensures uniform heat transfer, making this furnace ideal for producing high‑quality castings with excellent surface finish and dimensional accuracy.
The EM‑A Series provides a dependable molten aluminum supply for gravity casting, sand casting, and permanent‑mold casting operations. Its precise temperature control ensures consistent melt quality, which is essential for minimizing casting defects such as cold shuts, inclusions, and porosity. The stationary design integrates easily into manual ladle‑pouring workflows and small casting cells.
Electric melting is highly valued in die‑casting environments where temperature stability and melt cleanliness are critical. The EM‑A Series delivers clean molten aluminum with extremely tight temperature control, making it ideal for feeding small high‑pressure die‑casting (HPDC) and low‑pressure die‑casting (LPDC) cells. Its compact footprint and quiet operation make it suitable for placement near casting machines, reducing heat loss during transfer.
The EM‑A Series provides a stable, low‑turbulence environment for alloying and melt treatment. Operators can add alloying elements, perform degassing, and maintain precise temperature control before transferring metal to casting equipment. The round crucible geometry promotes even heat distribution, ensuring uniform alloy composition and improved metallurgical consistency — essential for producing high‑performance aluminum alloys.
The EM‑A Series is an excellent choice for research labs, prototype shops, and low‑volume production environments that require clean molten aluminum in small batches. Its electric heating system provides fast heat‑up, precise temperature control, and quiet operation — ideal for testing new alloys, validating casting designs, or producing short‑run components. Facilities benefit from lower operating costs and reduced metal loss.
The EM‑A Series efficiently melts a wide range of aluminum feedstock, including ingots, sows, runners, returns, and clean scrap. The round crucible design ensures uniform heat transfer and stable melting performance, even with varying charge sizes. Electric heating minimizes oxidation, preserving melt quality and reducing metal loss — making the furnace suitable for both primary and secondary aluminum melting operations.
Electric melting is inherently energy‑efficient, and the EM‑A Series maximizes this advantage with high‑performance heating elements and thick refractory insulation. The closed‑chamber design minimizes heat loss, while precise temperature control prevents overheating and unnecessary power consumption. For facilities seeking to reduce energy costs without compromising melt quality, the EM‑A Series offers a highly economical solution.
The EM‑A Series is ideal for facilities that need a reliable melting furnace with minimal maintenance requirements. With no burners, no fuel trains, and no combustion‑air systems, electric melting dramatically reduces routine service needs. The stationary design has fewer mechanical components than tilting or automated systems, improving uptime and lowering long‑term operating costs. This makes the EM‑A Series a practical, dependable melting solution for small foundries, job shops, and aluminum casting operations.
Frequently Asked Questions About The EM-A Series Aluminum Crucible Melting Furnace
The EM‑A Series provides exceptionally clean and stable melting because it uses electric resistance heating instead of combustion. With no burners, no flame, and no exhaust gases, oxidation and hydrogen pickup are dramatically reduced — two major contributors to porosity and dross formation in aluminum casting. Electric heating also delivers precise temperature control, quiet operation, and lower maintenance requirements. For facilities that prioritize melt cleanliness, energy efficiency, and process stability, the EM‑A Series offers a clear performance advantage over gas‑fired systems.
The EM‑A Series is engineered to melt a wide range of aluminum feedstock, including ingots, sows, runners, returns, and clean scrap. The round crucible design ensures uniform heat transfer and stable melting performance, even with varying charge sizes. Electric heating provides consistent temperature distribution throughout the crucible, making the furnace suitable for both primary and secondary aluminum melting operations.
Electric melting eliminates combustion byproducts, which dramatically reduces oxidation and prevents hydrogen absorption — two common causes of porosity and dross formation in aluminum casting. The EM‑A Series uses a closed‑chamber design that maintains a stable, low‑oxygen environment around the crucible. The round crucible geometry promotes even heat transfer, minimizing hot spots and ensuring consistent melt quality. These features allow the furnace to produce exceptionally clean molten aluminum suitable for high‑precision casting applications.
Yes — the EM‑A Series is designed for continuous melting in small and medium‑scale aluminum foundries. Its electric heating elements provide stable, repeatable temperature control with minimal fluctuation, making it ideal for long production cycles. The stationary design reduces mechanical wear and maintenance requirements, while the furnace’s robust insulation ensures excellent thermal efficiency. For facilities seeking a reliable, low‑maintenance melting solution that can operate continuously, the EM‑A Series performs exceptionally well.
Yes — EM‑A Series electric aluminum crucible melting furnaces are available throughout the United States, Canada, and Mexico. Foundries, die‑casting plants, and aluminum processors rely on these furnaces for clean melting, precise temperature control, and low operating costs. Regional availability ensures faster delivery, dependable technical support, and access to replacement parts. Units can be configured with various crucible sizes, power ratings, and control options to meet specific production requirements.
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