Roller veneer dryer: It uses a series of upper and lower rollers to convey the veneer through the dryer. All the lower rollers are driven by a motor through a transmission device through a chain, while the upper rollers are driven by the lower rollers through a pair of long-toothed gears. Therefore, the upper rollers can be used with different veneer thicknesses float up and down within a certain range. The effective working length of the dryer, that is, the veneer heating and drying area, is usually 8-32m. Working parameters such as roller length, number of layers and effective working length are related to the production capacity of the dryer. 

The advantage of this type of machine is that the dry veneer is relatively flat, because the veneer runs between the upper and lower rollers, and the quality of the upper roller has an effective pressing effect on the veneer, so it can avoid uneven shrinkage caused by differences in initial moisture content or differences in wood texture. Since the veneer runs under the clamping of the upper and lower rollers, not only the flowing hot air transfers heat energy to the veneer in the form of convection, but also transfers heat to the veneer through the contact of the rollers. The roller dryer must transfer veneers longitudinally, which is suitable for bulk veneers, and adopts the process of cutting first and then drying, which is consistent with the LVL production process. The roller dryer is expensive and consumes a lot of materials. It is easy to pollute the roller when drying veneer with high digital content, and it is difficult to clean.