Advanced Furnace Solutions and Equipment for the Aluminum Industry.
Comprehensive Systems and Accessories Designed for Excellence
At GNA we specialize in the design and construction of furnaces and supplementary equipment for the aluminum industry. Along with other machinery, we offer melting and holding furnaces, heat treatment furnaces for homogenizing, annealing and other processes, and cathode sealing equipment.

Melting/Holding & Rotary Furnaces
Maximize efficiency and precision with GNA alutech’s advanced melting and holding furnaces. Engineered for optimal performance, reliability, and energy efficiency, our solutions ensure superior metal processing for primary and secondary aluminum producers.

Homogenizing Systems
Achieve exceptional alloy performance with GNA alutech’s high-precision homogenizing furnaces. Designed for efficiency, temperature uniformity, and process control, our solutions ensure fast heating, optimized cooling, and low operating costs.

Specialty Equipment
GNA alutech offers advanced specialty equipment to optimize aluminum processing—from automated alloying to organic removal and preheat furnaces. Discover how our solutions enhance efficiency, safety, and process control.

Cathode/Anode System
Optimize your smelting operations with GNA alutech’s innovative cathode and anode systems. With decades of expertise, we deliver integrated, high-efficiency solutions that prioritize process automation, operator safety, and seamless installation.
Decades of Innovation and Industry-Leading Support
Why Choose GNA?
GNA has been a trusted partner to the aluminum industry since 1983, specializing in the design and construction of furnaces and equipment that set the standard for quality and reliability. As part of the EBNER GROUP, we combine our expertise with the strengths of Gautschi and HPI, delivering unmatched solutions from a single source.
With a focus on innovation, GNA offers a comprehensive range of products, including melting and holding furnaces, heat treatment systems, and cathode sealing equipment. Our globally recognized service teams provide flexible, expert support, making GNA the partner you can rely on for lasting success.

You want to learn more about our industrial furnaces?
Our sales team will be happy to get in touch with you!