composite roll annealing line

The invention relates to a roller (100) of a continuous annealing line including at least one spindle or drive shaft (130; 140) and a cylindrical housing (120), characterised in that the cylindrical housing (120) is made of a ceramic matrix composite (CMC) material which consists of a carbon fibre reinforcement compregnated by an at least partially ceramic matrix, one phase of the ceramic material being present throughout the volume of the composite material of the housing.