Pre - sanding with the cross sanding unit

Due to the sanding direction of the cross belt 90 ° to the veneer or grain direction the fibres are cut against the edges of the pores. Therefore, a rising up of these fibres after the lacquering process is avoided. The cross belt produces homogenous surfaces giving an important pre-condition for thin lacquering. Additionally the so-called washed - out effects when soft woods with different annual rings are processed can be avoided. This picture often appears when only longitudinal sanding units are used for the processing of these wood types.

Heesemann is a pioneer in the area of industrial cross sanding.