MINI STACK MELTING FURNACE
GM-E SERIES
Our GM-E Series gas mini stack melting furnace, also known as mini shaft, or mini tower melter, has all the features and melting speed of our large central stack melting furnace, but has a much smaller footprint. This furnace is designed to be placed beside a die casting machine, or in any location where space is limited. It can also serve as a central melter for smaller dip out operations. This series features an automated charging elevator for simplified charging. Like all our furnaces, the GM-E Series is controlled by a PLC and a large color HMI touch screen which runs a sophisticated program that optimizes performance, operation, and efficiency. The GM-E Series is very competitively priced.
TECHNICAL OVERVIEW
The GM‑E Series tilting mini stack melting furnace is engineered for foundries and die‑casting operations that require high‑efficiency aluminum melting in a compact footprint. Its vertical stack design captures exhaust heat to preheat the charge, significantly reducing fuel consumption while improving melt rates. Despite its smaller size, the GM‑E Series delivers exceptional thermal efficiency, stable temperature control, and clean molten aluminum suitable for casting. The integrated holding chamber ensures consistent metal temperature, while the tilting mechanism provides smooth, controlled pouring with minimal dross formation. This furnace is ideal for facilities seeking reliable performance, lower operating costs, and high‑quality melt output without the space requirements of a full‑size stack furnace.
Mini stack melting furnaces offer major advantages in efficiency, melt quality, and operational cost compared to traditional crucible or reverberatory systems. The GM‑E Series uses stack preheating to recover waste heat, reducing fuel consumption and shortening melt cycles. Unlike crucible furnaces that require frequent handling and have limited capacity, the GM‑E Series provides continuous melting with stable temperature control and reduced oxidation. The tilting feature ensures clean, low‑turbulence metal transfer, improving casting quality and reducing dross. For small to medium‑volume aluminum processors, the GM‑E Series delivers the performance of a larger industrial furnace in a compact, cost‑effective package.
The GM‑E Series combines compact design with high‑efficiency melting technology. Key features include a vertical stack preheating system, high‑performance gas burners, and a durable refractory lining designed for long service life. The furnace’s tilting mechanism allows precise, controlled metal pouring, reducing turbulence and oxidation. Automated temperature control ensures consistent melt quality, while the closed‑door operation minimizes heat loss and improves fuel efficiency. With its small footprint, low emissions, and reduced operating costs, the GM‑E Series is an excellent solution for foundries, die‑casting plants, and recycling operations that require reliable aluminum melting in limited space.
HIGH THERMAL EFFICIENCY BY DESIGN
We Add Multiple Layers of Insulation.
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.
EASY TO OPERATE INTERFACE
Greater Control - Means Greater Efficiency.
The GM-E Series Mini stack melting furnaces feature state-of-the-art PLC control with large color HMI screens with easy to read graphics - all at no extra charge. See in real time all furnace functions and change any setting on the fly. Now that's control.
CERAMIC ALUMINUM DROSS FILTRATION
Comes Standard with All Models and Keeps Your Aluminum Clean.
AUTOMATED CHARGING
Eliminates Tedious Charging and Simplifies Operation.
The other end of this furnace features a shaft melter with an automatic elevator which has a tilting cart for ingots, returns and scrap. The carts are inserted at the bottom with various types of aluminum material and the cart travels up, the shaft melting lid is opened and the cart dumps the load, and returns to the bottom. The cart is pulled out and another full cart is loaded.
INFRARED STACK LEVEL SENSOR
Optimized Shaft Filling.
This furnace features an infrared sensor which monitors the level of material in the melting shaft. Once the correct level is achieved a signal is sent to the elevator to sent the cart up with more material. The system ensures optimized filling for maximum performance.
SHAFT ELEVATOR CONTROL
Simplifies Elevator Loading.
All the controls needed to operate and load the shaft elevator with carts are on a separate panel located right on the elevator.
AIR MANIFOLD
Complete System Included.
The furnaces comes with a dependable air manifold that is properly scaled for the pneumatic air cylinder which operates the shaft melting cover. Air is used also to keep the shaft level sensors clean and clear.
HIGHEST RETURN ON
INVESTMENT
We Give You More Furnace for Your Money.
To be competitive today’s economy requires that manufacturers 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 for your money!
TWO SIDE CLEANOUT DOORS
We Made Furnace Cleaning Easier.
The two side cleanout doors and the large pre-heat ramp door give the operator easy access to all parts of the furnace interior for easy cleaning. There are no blind spots to deal with. All this encourages regular furnace cleaning.
ARTICULATING CLEANOUT DOOR PANEL
Simplifies Furnace Cleaning.
Our articulating cleanout door panel allows the opening and closing of both side cleanout doors individually with a clear view of both doors. The panel is located conveniently and can be pushed out of the way when not needed.
QUICK CONNECT
Fast Onsite Connection.
Our quick connection plugs eliminate onsite wiring errors and allow for quick onsite furnace assembly and future maintenance. It is one of the little things that count and make our furnaces different.
CHOOSE YOUR CONTROL SYSTEM
We Give You Options of PLC & HMI.
Select the control system that is best for you and easiest for your maintenance team.
DUAL AIR BLOWERS
Two are Better Than One.
Using double air blowers gives us more flexibility and precision in the amount of air available for the melting and holding chambers at any given time. When balanced correctly they increase the efficiency of the furnace and reduce running costs.
VFD DRIVE BLOWER
MOTORS
Better Efficiency and Lower Operating Cost.
Lots of air without control wastes a significant amount of energy. We use VFD Drives combined with Premium Inverter Duty Motors to give you greater RPM only when it is needed. All this translates into greater efficiency, lower operating costs, quieter operation, soft start and longer motor life. The advantage is clear. This is just one of the many ways we use to increase furnace efficiency, and reduce long term operating costs.
HIGH QUALITY COMPONENTS
We Use Brand Name Components You Know and Already Use.
We use only the finest quality components that are open source and readily available locally in your area, or from our online parts store.
REMOTE SERVICE
We Can Remotely Troubleshoot Your Furnace from Our Facility.
Our GM-E Series mini stack melting furnaces include a Remote Connectivity Unit which allows our furnace technicians to remotely check the performance of the furnace, make any needed changes to the program or HMI, or to troubleshoot it directly from our service center. The customer is only required to connect the unit to the Internet via an Ethernet cable. We handle the rest.
INDUSTRY 4.0 REMOTE MONITORING
Remotely Monitor Your Furnace Performance From Any Device.
As an option, all our furnaces are available with Industry 4.0 remote performance monitoring units which feature a custom dashboard. You can not only monitor furnace performance, but you can be notified before an issue occurs. Included are condition based maintenance reminders and shift performance statistics. Minimize impact of emergencies and maximize furnace uptime, and productivity. See what is going on with the furnace and your production from any device, anywhere in the world.
EIGHT STANDARD SIZES
Flexible Range of Applications.
Available from a small 770 lbs holding capacity all the way to 4400 lbs, the GM-E Series mini tower melting furnaces allow for a wide range of applications. NOTE: Higher melting rates are available by request.
| Standard | US / Imperial (Al) | Metric (Al) | ||
| Model | Holding | Melting/h * | Holding | Melting/h * |
| GM-E-770 | 770 lb | 220 lb | 350 kg | 109 kg |
| GM-E-1100 | 1100 lb | 330 lb | 500 kg | 155 kg |
| GM-E-1400 | 1400 lb | 440 lb | 650 kg | 200 kg |
| GM-E-1760 | 1760 lb | 550 lb | 800 kg | 250 kg |
| GM-E-2050 | 2050 lb | 660 lb | 950 kg | 300 kg |
| GM-E-2600 | 2600 lb | 880 lb | 1200 kg | 400 kg |
| GM-E-3300 | 3300 lb | 1100 lb | 1500 kg | 500 kg |
| GM-E-4400 | 4400 lb | 1650 lb | 2000 kg | 750 kg |
Applications For The GM-E Series Aluminum Tilting Mini Stack Melting Furnace
The GM‑E Series is ideal for foundries that require high‑efficiency melting without the footprint of a full‑size industrial furnace. Its vertical stack design preheats the charge using exhaust heat, reducing fuel consumption and improving melt rates. This makes it a perfect fit for jobbing foundries, prototype shops, and small‑batch aluminum casting operations that need reliable performance in limited space.
Die‑casting operations benefit from the GM‑E Series’ ability to maintain consistent melt temperature and deliver clean aluminum on demand. The integrated holding chamber ensures stable thermal conditions, while the tilting mechanism provides smooth, low‑turbulence metal transfer to ladles or casting machines. This improves casting quality and reduces defects caused by temperature fluctuations or dross.
The GM‑E Series is designed to handle a wide range of aluminum feedstock, including scrap, runners, gates, and internal returns. The stack preheating system improves melting efficiency even with lower‑grade scrap, reducing oxidation and fuel usage. This makes the furnace an excellent choice for facilities focused on recycling and cost‑effective metal recovery.
With precise temperature control and a stable holding chamber, the GM‑E Series supports alloy preparation and melt conditioning. Operators can add alloying elements, degas the melt, and maintain consistent temperature before transferring metal to casting equipment. This ensures uniform alloy composition and improved metallurgical quality for high‑performance castings.
The compact footprint and efficient operation of the GM‑E Series make it ideal for research labs, tooling shops, and prototype casting environments. It provides fast heat‑up, stable temperature control, and clean molten aluminum for small‑batch production. This allows engineers to test new alloys, validate casting designs, and produce short‑run components without the overhead of a large furnace.
The furnace’s tilting mechanism allows operators to pour molten aluminum directly into ladles or casting lines with exceptional control. Smooth tilting minimizes turbulence and oxidation, reducing dross formation and improving metal cleanliness. This makes the GM‑E Series ideal for gravity casting, sand casting, permanent‑mold casting, and other processes where metal purity directly affects casting quality.
Frequently Asked Questions About The GM-E Series Aluminum Tilting Mini Stack Melting Furnace
A mini stack melting furnace delivers significantly higher thermal efficiency and lower operating costs compared to traditional crucible or small reverberatory systems. The GM‑E Series uses a vertical stack to preheat the charge with exhaust heat, reducing fuel consumption and shortening melt cycles. Because the furnace remains closed during operation, heat loss and oxidation are minimized, resulting in cleaner metal and less dross. The tilting mechanism also provides controlled, low‑turbulence metal transfer, improving casting quality and operator safety.
The GM‑E Series is designed to melt a wide range of aluminum materials, including ingots, sows, scrap, runners, gates, and internal returns. The stack preheating system improves melting efficiency even when processing lower‑grade or mixed scrap. By reducing oxidation and maximizing heat recovery, the furnace consistently produces clean, high‑quality molten aluminum suitable for casting applications of all sizes.
The furnace’s closed‑door operation and optimized burner system maintain a stable, low‑oxygen melting environment. Preheating the charge in the stack reduces thermal shock and minimizes oxidation during melting. The tilting mechanism ensures smooth, controlled metal transfer with minimal turbulence, preventing oxide entrainment. These features collectively reduce dross generation, improve metal cleanliness, and enhance casting performance.
Yes — the GM‑E Series is engineered for both batch and semi‑continuous melting. Its compact design makes it ideal for small‑batch production, prototype casting, and R&D environments, while the integrated holding chamber supports continuous metal supply for small and mid‑size die‑casting machines. The furnace’s efficient burner system, durable refractory lining, and automated controls ensure consistent melt output with minimal downtime.
Yes — GM‑E Series aluminum tilting mini stack melting furnaces are available throughout the United States, Canada, and Mexico. Foundries, die‑casting plants, and aluminum processors across North America rely on these furnaces for efficient melting, reduced fuel consumption, and consistent metal quality. Regional availability ensures faster delivery, reliable technical support, and access to replacement parts. Units can be configured with various capacities, burner systems, and automation packages to meet specific production needs.
DO YOU NEED BIGGER CAPACITY?
Be Sure to Check Out of Full Size Central Melting Furnaces.
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