Graphite Furnace Insulation board

Graphite Furnace Insulation board generally comes in two distinct forms:
- Carbon bonded carbon fibre; common trade names include Americarb, Russcarb, Calcarb and Fibreform.
- Rigidised graphite felt.
Online Furnace Services Ltd is the exclusive European agent for Americarb products. Americarb’s carbon fibre board, CFB-017, is a carbon fibre based ultra high temperature, high purity, low density graphite insulation board for use in demanding vacuum furnace applications at temperatures up to 2,600 C.
CFB-017 can be halogen purified to less than 20 PPM.
CFB-017 insulation board has excellent machining properties.
Graphite Furnace Insulation Cylinders

Online Furnace supply both vacuum formed and rigid felt cylinders to suit circular hot zone requirements. More specialised foil/felt/foil constructions for sinterHIP units and CFC clad options are also available.
Typical applications include:
- Vacuum heat treatment
- Vacuum brazing
- Hard metal sintering
- Non-oxide ceramic production, e.g. aluminium nitride, silicon carbide, boron nitride, etc.
- Precision casting units
- Carbon fibre production