Furnace Spare Parts for Extended Service Life and Greater Efficiency

Premium materials for maximum process reliability

A furnace system is the heart of any heat treatment process. To avoid failures and costly repairs, regular maintenance and the use of high-quality materials are essential. With Schunk’s premium quality, you benefit from decades of materials expertise and a global presence that ensures optimal process reliability.

Optimal materials for maximum process reliability

High-performance furnace spare parts by Schunk

High-temperature furnaces – especially vacuum furnaces with gas quenching – are exposed to intense chemical and mechanical stresses. This is where carbon truly proves its worth, offering excellent thermal shock resistance and outstanding chemical stability. Our high-performance furnace components enhance temperature uniformity, system efficiency, and service life – key advantages that make a real difference.

Superior Spare Parts for Longer Furnace Lifespan

Because furnaces are exposed to extreme conditions, their insulation is at constant risk of damage, which can significantly shorten the service life of the heating chamber. Every repair costs time and money – and low-grade insulation materials often lead to more frequent maintenance. A complete furnace failure due to insulation damage results in expensive downtime and repairs. Uneven temperature distribution in the heating zone also negatively affects process results. Equip your furnace system with Schunk's premium spare parts during regular maintenance and benefit from everything from a single source – backed by industry-leading materials expertise and technical consultation.

Products | Furnace Spare Parts

Hard Felt / Soft Felt Insulations

Fastening Hardware

Profiles as Edges Protection

Insulation Protection from CFRC Plates, CFRC Foils and Graphite Foils

Graphite coating powder

Radial Fans & Convection Fans

Heating Elements / Heating Systems

carbon fiber-reinforced carbon (CFC)

Build heating chambers with precision

Our wide range of CFC edge protection profiles and flexible CFC foils help you protect your furnace insulation. Benefit from the unmatched properties of carbon fiber-reinforced carbon (CFC) and our application-specific design know-how. Whether with or without embedded graphite foil, our CFC profiles provide effective protection against gas erosion and mechanical damage. They prevent thermal bridges, improve temperature uniformity, extend insulation life, reduce scrap, and minimize downtime due to maintenance or repairs. We offer a wide variety of standard profiles, including patented double-L profiles that deliver even greater protection and solve special design challenges. Most standard profiles are available from stock for quick delivery.

High-performance insulation materials and fastening solutions

Our components made of CFC set new standards in insulation and fastening. For example, rigid felt insulation can be coated with graphite to protect against gas erosion – and the coating can even be prepared and applied on-site to cut edges. Fastening reliability also plays a key role in cost-effectiveness. In many high-temperature furnaces, molybdenum bolts are standard – but molybdenum becomes brittle after the first heating cycle. The result: fasteners break, the insulation becomes unstable, and entire batches can be damaged. Replacing broken molybdenum fasteners is labor-intensive and leads to unnecessary downtime. Our CFC fastening systems solve this issue. CFC maintains its mechanical properties throughout the entire service life. During maintenance, the hot zone doesn’t have to be removed – repairs can be made from inside the chamber, significantly reducing time and effort.

Furnace spare parts that spark long-lasting performance

CFC radial fans: Operate at maximum temperature and full speed, ensuring uniform heat distribution and improved heat transfer.
Heating elements
Insulation materials: Rigid felt boards in various grades and soft graphite felts
Insulation protection: CFC plates and CFC/graphite foils (sacrificial layer)
Edge protection profiles: L-, U-, double-L-, h-, and J-profiles
Cylindrical L-profiles for insulation cylinders
Graphite coating: For edge protection, repair, or insulation sealing
Fasteners: Bolts, screws, threaded rods, nuts, washers, and braiding cord
Semi-finished products

Brochure: Heat Treatment

Innovative Solutions for Thermal Applications

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Brochure: Durafox®

Heat treatment with high-level know-how

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Standard Part List

Standard parts list in the field of high temperature applications

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