Ceramic fiber linings are widely used in high-temperature equipment to provide lightweight insulation, rapid heat-up, and excellent thermal efficiency. These linings—most commonly installed as blankets, boards, or modules—must be mechanically secured to the steel shell to prevent sagging, shrinkage, or displacement during thermal cycling and vibration. Ceramic fiber anchoring hardware is designed to hold the insulation firmly in place while minimizing heat transfer, accommodating movement, and maintaining long-term lining integrity.
The most common anchoring solution for ceramic fiber blanket linings is the Insul-Twist–style ceramic fiber stud, such as Malco AS267. These studs are stud-welded directly to the steel shell and feature a twisted or ridged profile that positively engages ceramic fiber retention hardware. The geometry of the Insul-Twist design helps resist rotation and loosening, making it highly effective in applications exposed to vibration, repeated thermal cycling, or vertical and overhead orientations. Because of their reliability, ease of installation, and proven field performance, Insul-Twist ceramic fiber studs are widely considered the industry standard for securing blanket linings in heaters, furnaces, ducts, and other high-temperature process equipment.
Threaded studs are used where ceramic fiber or refractory systems require a positive, adjustable mechanical attachment. In ceramic fiber applications, threaded studs are commonly specified for fiber module systems, where retention hardware is tightened onto the stud to clamp and hold the module assembly against the shell. The threaded connection allows precise control of compression and stand-off, which is critical for maintaining module alignment and accommodating thermal movement. Threaded studs are also frequently used in two-component lining systems, such as designs that combine ceramic fiber insulation with a castable refractory hot face. In these cases, the threaded stud serves as a versatile anchoring point that allows multiple materials, layers, and retention components to be mechanically secured to a single attachment, providing flexibility in lining design and long-term durability in demanding service conditions.
Please fill out this form and one of our sales professionals will contact you.
Designed and developed by
