Industrial Furnace Rebuilds, Relines, & Retrofits

Why Choose a Furnace Rebuild, Reline, or Retrofit?

Over time, furnaces experience wear and tear, component failure, and dated controls. Furnace rebuilds and retrofits are a cost-effective solution that addresses these issues while avoiding the expense and downtime of installing a brand-new furnace. Here are some key benefits of furnace rebuilds and retrofits:

• Extend Equipment Life: Replace or restore critical components such as furnace linings, burners, and fans.
• Improve Energy Efficiency: Upgrade to high-efficiency insulation, burners, and heat recovery systems.
• Modernize Controls: Retrofit with PLC/HMI systems for automation, precision, and Industry 4.0 compatibility.
• Minimize Downtime: Eliminate recurring issues and install diagnostics for proactive maintenance.
• Improve Safety & Compliance: Upgrade burners, exhaust, and interlocks to meet current safety standards.
• Adapt to Changing Needs: Modify for new temperature ranges, production volumes, or materials.
• Save Capital Costs: Reuse furnace structure while achieving like-new performance.

Our Industrial Furnace Rebuild, Reline, & Retrofit Services

We provide industrial furnace rebuilds, relines, and retrofits for any make or model of furnace, not just Lindberg/MPH units. Our aftermarket team thoroughly assesses your furnace’s condition and customizes a rebuild/retrofit plan to achieve your goals, such as energy savings, capacity increase, improved control, or all of the above. Key furnace refurbishment and retrofit services we offer include:

• Component Rebuilds: We repair or replace damaged components, fans, hearths, and other mechanical parts to restore the furnace to like-new condition. This can include re-welding furnace shells, replacing door seals, muffle retorts, hearth rollers, and more to resolve mechanical wear issues.
• Refractory Replacement (Relining): As part of a rebuild, we often perform a complete furnace relining with upgraded refractory materials. A new refractory lining not only protects the furnace shell but also improves energy efficiency. (See our Relines & Refractory Services for more details on our lining expertise.)
• Controller Upgrades: Our team modernizes outdated furnace controls by installing state-of-the-art PLC/HMI control systems and sensors. We can integrate modern temperature controllers, programmable logic controllers, and data acquisition systems that provide precise control, automated cycles, and detailed reporting.
• Energy Source Conversions: If your operational needs have changed, we can convert furnaces from electric to gas heating or vice versa. We handle all aspects of the conversion, including heating elements or burner installation, power supply or gas train modifications, and control tuning.
• Single to Dual-Source Upgrades: Lindberg/MPH can even equip your furnace with dual-source heating capability, allowing it to operate with either gas burners or electric heaters (or a combination). This provides flexibility, allowing you to use the optimal energy source based on cost or availability.

Experience You Can Depend On

Lindberg/MPH has been a leader in heat treating and furnace technology for over a century, and that experience goes into every rebuild project we undertake. Our technicians and engineers are highly experienced with a range of furnace technologies, enabling us to bridge the gap between old and new. We approach furnace rebuilds with a turnkey mindset, handling disassembly, installation of new components, reassembly, and re-commissioning of your furnace with minimal downtime to you.