Top Five Medium Frequency Furnace Suppliers in Germany [2025]

Founded in 1985 and headquartered in Düsseldorf, Stahlwerk Technik GmbH has been a cornerstone of Germany's industrial furnace manufacturing sector for nearly four decades. What sets this family-owned business apart is its unwavering focus on metal melting furnace equipment tailored to small and medium-sized enterprises (SMEs). While larger suppliers often prioritize high-volume orders, Stahlwerk Technik prides itself on flexibility—offering custom solutions that fit tight factory spaces, unique metal alloys, and budget constraints.

The company's flagship product, the MF-Pro Series, is a line of medium frequency electricity furnace equipment designed for versatility. Available in capacities ranging from 50kg to 5 tons per batch, these furnaces are popular among automotive parts manufacturers and scrap metal recyclers. One standout feature is their advanced digital control system, which allows operators to adjust frequency (from 500Hz to 2000Hz) and power output in real time, reducing energy waste by up to 15% compared to older models. "We worked with Stahlwerk to upgrade our aluminum casting line," says Martin Keller, production manager at a Bavarian auto parts supplier. "The MF-Pro 2000 cut our melting time by 20 minutes per batch and lowered our electricity bills significantly—paying for itself in under two years."

Sustainability is another area where Stahlwerk shines. All their furnaces come standard with built-in heat recovery systems, which capture excess thermal energy and redirect it to preheat raw materials. This not only reduces carbon emissions but also cuts fuel costs. Additionally, the company offers retrofitting services for older furnaces, helping clients extend equipment lifespans and avoid premature replacements. With ISO 9001 and CE certifications, Stahlwerk Technik combines tradition with modernity—making it a trusted partner for SMEs across Europe.

For businesses focused on circular economy practices, EcoRecycling Systems Deutschland, based in Munich, is a name that resonates. Founded in 2001, this innovative firm specializes in integrating medium frequency furnaces into lead acid battery recycling equipment and other metal recovery processes. In an era where strict environmental regulations govern waste management, EcoRecycling's furnaces are engineered to meet the EU's strictest emissions standards, including the Industrial Emissions Directive (IED) and REACH.

Their signature product, the Eco-Melt 3000, is a medium frequency electricity furnace equipment designed specifically for lead acid battery recycling. Unlike generic melting furnaces, the Eco-Melt 3000 includes a specialized lining resistant to sulfuric acid corrosion and a built-in gas filtration system that captures 99.9% of lead fumes—a critical feature for compliance with workplace safety laws. "When we expanded our battery recycling plant in Hamburg, we needed a furnace that could handle both lead paste and grid metal without cross-contamination," explains Sarah Lüdtke, operations director at a leading recycling firm. "EcoRecycling's system not only met our (environmental) goals but also improved our lead recovery rate by 3%—a huge margin in our industry."

Beyond lead acid applications, EcoRecycling has recently expanded into lithium-ion battery recycling, offering furnaces compatible with li battery recycling equipment . Their MF-Li Series, launched in 2024, uses inert gas atmospheres to prevent lithium oxidation during melting, ensuring safer and more efficient recovery of cobalt, nickel, and lithium. With a focus on research and development, the company invests 15% of its annual revenue into new technologies, including AI-driven predictive maintenance tools that alert operators to potential issues before they cause downtime.

Headquartered in Stuttgart, MetallSchmelze Innovations AG is a heavyweight in the high-capacity furnace market. Founded in 1962, this publicly traded company serves global giants in aerospace, shipbuilding, and renewable energy—think Siemens, Airbus, and Vestas. Their claim to fame? The Titan Series, a line of medium frequency electricity furnace equipment with capacities up to 50 tons per batch, making them ideal for large-scale steel and copper production.

What truly distinguishes MetallSchmelze is its commitment to automation. The Titan Series comes equipped with the company's proprietary SmartMelt software, which integrates with ERP systems to streamline production planning, track energy usage, and even order raw materials automatically when stock runs low. For example, a shipyard in Bremen using the Titan 5000 reported a 30% reduction in labor costs after implementing SmartMelt, as the system eliminated the need for manual data entry and scheduling. "We can monitor furnace performance from our phones now," says Jan Weber, the yard's operations manager. "If the temperature deviates by 2°C, we get an alert, and the system adjusts automatically. It's like having a 24/7 metallurgist on staff."

Sustainability is also a priority here. MetallSchmelze's furnaces are designed to run on 100% green electricity, and their latest model, the Titan ECO, features a carbon capture module that reduces CO2 emissions by 40% compared to conventional furnaces. The company is also a leader in circular economy practices—using recycled steel in 90% of its furnace casings and offering take-back programs for old equipment, which are then refurbished or recycled. With a global service network spanning 28 countries, MetallSchmelze ensures that even clients in remote locations receive prompt support, making it a top choice for multinational corporations.

Precision Furnace Engineering, based in Berlin, is the go-to supplier for industries where precision is non-negotiable: medical device manufacturing, electronics, and jewelry making. Founded in 2003 by a team of former Bosch engineers, PFE specializes in small-batch, high-purity metal melting furnace equipment that can handle precious metals (gold, silver, platinum) and exotic alloys (titanium, Inconel) with minimal contamination.

Their star product, the MicroMelt 50, is a compact medium frequency furnace designed for labs and boutique manufacturers. With a maximum capacity of 50kg and temperature control accuracy of ±1°C, it's perfect for creating custom jewelry or medical implants. What makes the MicroMelt 50 unique is its vacuum melting option, which removes impurities like oxygen and nitrogen, ensuring metals meet the strict purity standards required for surgical tools. "We use PFE's furnaces to produce dental crowns," says Dr. Klaus Meyer, owner of a dental lab in Leipzig. "The precision is unmatched—each crown has consistent density, which means fewer adjustments and happier patients."

PFE also stands out for its customer-centric approach. The company offers free training sessions for operators, and its technical support team is available 24/7 via video call to troubleshoot issues. For clients with unique needs, PFE's in-house engineering team can design fully custom furnaces, often delivering prototypes within 8–10 weeks. In 2024, the company launched the GreenMelt line, which uses 30% less energy than traditional models by leveraging magnetic field optimization—a breakthrough that has earned it the German Sustainability Award in Industrial Innovation.

Rounding out our list is GreenTech Industrial Solutions, a Berlin-based startup that has taken the industry by storm since its founding in 2018. While newer than its competitors, GreenTech has quickly made a name for itself by focusing on air pollution control system integration and modular furnace design. The company's mission? To make medium frequency furnaces accessible to startups and eco-conscious businesses that prioritize sustainability over sheer volume.

GreenTech's flagship offering, the ModuFurnace, is a modular medium frequency electricity furnace equipment system that can be expanded as a business grows. Start with a 100kg capacity unit, then add modules to reach up to 1 ton—all without replacing the core system. This scalability has made it popular among green tech startups, such as those recycling e-waste into high-purity copper for electric vehicle batteries. "We started with a small ModuFurnace in 2020, and as our client base grew, we added two more modules," says Lena Schmitt, founder of a Berlin-based e-waste recycling startup. "GreenTech even helped us secure a ｇｒａｎｔ for the expansion, as their system meets the EU's Circular Economy Action Plan criteria."

What truly sets GreenTech apart is its integrated air pollution control system. Unlike most suppliers, which treat pollution control as an afterthought, GreenTech's furnaces come with built-in scrubbers, filters, and particulate matter monitors that ensure emissions are 70% lower than the EU's strictest limits. The company also offers carbon offset programs, where a portion of each sale goes toward reforestation projects in Germany's Black Forest. For businesses aiming for carbon neutrality, this is a game-changer. In 2025, GreenTech plans to launch a solar-powered furnace model, further reducing reliance on grid electricity and cementing its position as a leader in green industrial tech.