Metals Processing Applications

Electric Heating Applications typically utilize the following equipment:

Several metallurgical processes make use of electrical energy to extract, heat treat, and shape metals. Naturally, the equipment utilized in these processes requires high temperature insulating materials with excellent mechanical strength and, in some cases, chemical resistance.

The Gund Company manufactures and fabricates a complete line of electrical insulation and elastomeric sealing components for electric heating and melting applications. We specialize in providing custom fabricated insulating components for electric arc furnaces, induction furnaces, and smelting pot lines. We understand the demanding operating environment of your applications, and the materials capable of performing in such settings.

The Gund Company manufactures and fabricates a complete line of electrical insulation and gasket components for:


Select Your Metal Processing Equipment
Electric Arc Furnaces Induction Furnaces Smelting Applications

Electric Arc Furnaces

Electric Arc Furnaces harness a man-made lightning bolt to melt scrap metal, most commonly steel. Due to the tremendous electric power required to operate an arc furnace, the function and performance of electrical insulation are critical to the operation of the furnace. From the electrical substation to the transformer wall to the delta closure to the bus tubes to the mast arm and into the electrodes, The Gund Company offers insulation components that meet your most demanding application requirements. Electrical insulation components supplied by The Gund Company have been engineered to perform in one of the most difficult environments on Earth. Our years of application experience coupled with our materials knowledge allow us to serve OEM’s, repair companies, and steel mills with an unparalleled level of service.

Electric Arc Furnaces channel the power of electricity to create and sustain electrical arc capable of melting 100 tons of scrap steel in forty-five minutes. To harness and control this type of energy, furnace design engineers work with The Gund Company to develop electrical insulation material solutions capable of handling the unique combination of thermal, electrical, and mechanical requirements of the application.

With internal temperatures as high as 3,000 °C (5,432 °F), the components of electrical arc furnaces endure some of the most demanding operating environments in the electrical industry. For over three decades, The Gund Company has specialized in electric arc furnace insulation components. Whether helping with material selection and component design options for the OEM or developing a proactive “spares” program for the melt shops, we understand what it takes to keep the furnace making steel. And when shutdowns happen, our engineering expertise can bring solutions on-the-fly to help melt shops get back in production.

    Electric Arc Furnace Components

  • Mast Arm Insulation Plates
  • Insulating Washers
  • Insulating Tubing
  • Mast Arm Bolt Covers / Caps
  • Electrode Clamp Insulation
  • Bottom Electrode Insulation
  • Bus Bar Clamps
  • Roof Lift Insulation
  • Transformers Vault Insulation
  • Delta Closure Insulation
  • Phase Barriers
Common Materials in Electric Arc Furnaces
G-11, EPGC 203 G-10, EPGC 201 G-9, MFGC 201
G-7, SIGC 201 GPO-3, UPGM 203 C, CE, LE, PFCC 201/202/204
Mica M, Mica P Class R GPO-1 NAD-11
Transite 1000, Transite HT Arboron® X/XX/XXX, PFCP 201/202/204
Click here to view additional material data sheets.

The Gund Company also offers a wide variety of high-temperature elastomeric materials available for all your enclosure sealing, O-ring, thermal shielding and gasket needs.

Induction Furnaces

An induction furnace uses an electrically induced magnetic field to heat metal to its melting point for further processing. The two most common types of induction furnaces are coreless and channel furnaces with coreless furnaces being the most common. Induction coils pass electrical current through insulated copper turns shaped much like an enormous spring. The copper turns must be electrically insulated from each other to prevent short circuits in the coil. The Gund Company custom fabricates components for each major OEM and related repair companies of induction heating equipment in North America.

In this application, the electrical insulation materials fabricated by The Gund Company perform a critical role. Our application experience and materials knowledge allow our customers to obtain the optimal performance from their equipment. The Gund Company manufactures and fabricates a complete line of insulating components for induction furnaces, electric heating applications, and related power supply equipment.

Our long history of developing electrical insulation component solutions for these high-temperature applications provides our customers with a knowledge source of responsive options for spare parts to keep them in operation. To learn more about our induction furnace insulation components, request a Lunch & Learn event at your facility. Our presentation will focus on insulation material engineering for the most demanding metals processing applications.

With our years of application experience coupled with our materials knowledge, The Gund Company is here to serve OEM’s, repair companies, and foundries with an unparalleled level of service.

    Induction Furnace Components

  • Coil Supports
  • Coil Spacers
  • Insulating Tubing
  • Tops & Bottom Panels
  • Side Panels
  • Insulating Rings
Common Materials in Induction Furnaces
G-11, EPGC 203 G-10, EPGC 201 G-9, MFGC 201
G-7, SIGC 201 GPO-3, UPGM 203 C, CE, LE, PFCC 201/202/204
Mica M, Mica P Class R GPO-1, UPGM 201 Cement Board
FR4, EPGC 202 Arboron® X/XX/XXX, PFCP 201/202/204
Click here to view additional material data sheets.

The Gund Company also offers a wide variety of high-temperature elastomeric materials available for all your enclosure sealing, O-ring, thermal shielding and gasket needs.

Smelting Applications

Electrolytic smelting furnaces are most commonly used for the reduction of aluminum. In this application, the electrical insulation materials fabricated by The Gund Company perform a critical role. Our application experience and materials knowledge allow our customers to obtain the optimal performance for the equipment. Our years of application experience coupled with our materials knowledge allow us to provide aluminum smelters with a complete range of insulation components that meet their most demanding requirements.

    Smelting Application Components

  • Bus Bar Insulation
  • Pot Footing/Cradle Leg Insulation
  • Anode Clamp Insulation
  • Tap Door/Cell Cover Insulation
  • Crust Breaker Insulation
  • Walkway Support Insulation
  • Wedge Insulation
  • Shunt Insulation
  • Feed Cylinder Insulation
Common Materials in Smelting Applications
G-11, EPGC 203 G-10, EPGC 201 G-9, MFGC 201
G-7, SIGC 201 GPO-3, UPGM 203 C, CE, LE, PFCC 201/202/204
Mica M, Mica P Class R GPO-1, UPGM 201 NAD-11
Transite 1000, Transite HT Arboron® X/XX/XXX, PFCP 201/202/204
Click here to view additional material data sheets.

The Gund Company also offers a wide variety of high-temperature elastomeric materials available for all your enclosure sealing, O-ring, thermal shielding and gasket needs.

The Gund Company is a vertically integrated manufacturer and fabricator of engineered material solutions. Since 1951, we have listened to our customers and learned about the demanding operating environments of their industries. We are AS9100C Certified and ITAR Compliant. Our custom fabricated parts are manufactured according to ISO 9001:2008 certified quality systems.

We understand the challenges of material selection and the demanding operating environment of your application. Our Application Engineering Team takes a consultative approach to understanding your requirements. By relying on our material specialists, our customers gain valuable insight into how to improve component designs to increase efficiency and functionality while reducing cost. In addition to helping with material selection, we challenge ourselves to optimize production for material yield or fabrication efficiency. As a lean enterprise, we are focused on continuous improvement and finding the most cost-effective, efficient solutions for our customers.

Please contact us today if we can help answer material property questions or provide an application specific quote. Thank you for the opportunity to earn your business.