Roll for pressure treatment of material bands

摘要

The invention relates to a roll for pressure treatment of material bands comprising a carrier ( 3 ), a roll sleeve ( 4 ) arranged on said carrier ( 3 ), and at least one pressure chamber ( 12 ) which is disposed between the carrier ( 3 ) and the roll sleeve ( 4 ), is at least partially filled with liquid and can transmit at least indirectly a hydraulic pressure force from carrier ( 3 ) to the roll sleeve ( 4 ). According to said invention, the pressure chamber(s) is provided with an elastic element ( 18 ') which unrestrictedly communicates with supporting liquid and is compressible when a liquid pressure required for producing a supporting hydraulic force is exceeded.