Holding Furnaces
We offer two furnace technologies designed to meet different production and environmental requirements:
Gas Holding Furnaces — delivering powerful thermal efficiency and long-lasting performance for high-volume operations.
Electric Holding Furnaces — providing clean, precise, low-emission metal holding with exceptional temperature stability.
HOLDING FURNACE TYPES
Gas Holding FurnaceS
ELECTRIC HOLDING FURNACES
Holding Furnaces: Industrial Gas and Electric Holding Solutions for Aluminum, Zinc, and Copper
Discover Dynamo’s reliable holding furnaces — engineered for stable, energy-efficient temperature maintenance of molten aluminum, zinc, and copper in die casting, foundry, permanent mold, and high-volume metal processing operations. As a premier holding furnace manufacturer based in Cambridge, Ontario, Canada, we deliver durable, low-maintenance equipment optimized for North American industries, including Toronto-area facilities and across the USA and Mexico.
Our holding furnaces (gas and electric) provide uniform bath temperatures, minimal metal loss through oxidation or dross, precise control to reduce energy waste, and consistent metal quality for downstream casting processes. Perfect for pairing with our melting furnaces, these units ensure molten metal stays at ideal pouring temperatures with exceptional efficiency and reliability.
Key Benefits of Dynamo Holding Furnaces
- Superior Temperature Uniformity — Advanced designs maintain tight tolerances (± a few degrees) to prevent hot/cold spots and ensure consistent casting results.
- Energy Efficiency — Low heat loss through high-quality insulation, efficient burners (gas) or heating elements (electric), and features like insulated covers for reduced fuel/electricity consumption.
- Minimal Metal Loss — Reduced oxidation and dross formation, maximizing yield in aluminum, zinc, and copper holding applications.
- Clean & Quiet Operation (especially electric models) — Ideal for indoor or environmentally sensitive facilities with low emissions and no combustion byproducts in electric versions.
- Durable Construction — Heavy-duty refractory linings, robust frames, and long-lasting components for extended service life in demanding foundry environments.
- Custom & Scalable Options — Stationary or tilting designs, various capacities (from hundreds to thousands of lbs), and integrations like dosing systems or automation compatibility.
- High ROI — More features per dollar, quick turnaround on custom builds, and Industry 4.0-ready controls with color HMI interfaces.
Whether you need aluminum holding furnaces for high-pressure die casting, zinc holding furnaces for hot chamber processes, or copper holding furnaces for precise alloy work, Dynamo offers gas-fired and electric solutions tailored to your production demands.
Our Holding Furnace Series
Dynamo's gas holding furnaces deliver cost-effective, high-performance holding with rapid recovery and fuel-efficient operation — excellent for facilities with access to natural gas or propane.
- GH-A Series Gas Holding Furnace — Highly efficient aluminum holding furnace with stable temperatures, long service life, and optimized combustion for minimal energy use and metal loss.
- Additional gas models available for aluminum, zinc, and copper — contact us for tilting, crucible-style, or larger reverberatory-style holding configurations.
For clean, precise, and low-emission holding, our electric holding furnaces excel with exact control, quiet operation, and sustainability advantages.
- EH-A Series Electric Holding Furnace — Reliable aluminum holding with clean electric heating and uniform temperature maintenance.
- EH-B Series Electric Holding Furnace — Enhanced design for aluminum holding, focusing on efficiency and ease of use in industrial settings.
- EH-C Series Electric Holding Furnace — Advanced aluminum holding furnace delivering precise, stable control and efficient operation for demanding processes.
- ION-Holding Series (e.g., ION-Holding 3.8) — Purpose-built electric holding furnaces with large capacities (e.g., 3,800 lbs hold) for high-output production, combining durability, efficient heat transfer, and modern engineering.
(Note: Many electric models support zinc and copper holding with appropriate configurations — we customize based on your metal type and requirements.)
Applications of Holding Furnaces
Dynamo holding furnaces support critical stages in:
- Die Casting — Maintaining molten aluminum or zinc at exact temperatures for consistent shot quality.
- Foundry & Permanent Mold Casting — Ensuring uniform metal for sand, gravity, or low-pressure casting.
- Metal Processing & Recycling — Holding molten material post-melting for ingot casting or further alloying.
- Automotive, Aerospace, and Electronics — Precision holding for high-quality non-ferrous components.
Proudly manufactured in the United States, Canada, and Mexico our holding furnaces feature next-day parts availability, expert service from our Cambridge, Ontario location, and seamless shipping across North America.