LABORATORY CARDING MACHINES The Laboratory carding machine can process small quantity of fibres and it's suitable to test new fibres blendings and to produce web samples. Working width 500 mm or 1000 mm. The carding machine for samples can process fibres with the following characteristics: Fiber type: 1.5 d (blended) to 15 d Fiber length: 20 mm – 50 mm Basis weight: Up to 20 gsm