This conveyor is used to lift the timber upwards or downwards and to overcome a greater height difference during the transport of boards. The conveyor consists of cross chain tracks. The frame of the conveyor is generally robust and made of steel profiles and steel cutouts. The material is transported by a chain with high pushers. The chain size is determined by the weight of the conveyed material, the transport speed and the conveyor inclination. The number of chain tracks is determined according to the minimum and maximum length of the transported timber, usually from 2 to 6 chains. The downward lift conveyor is used when it is necessary to transport the timber from the sawmill in a greater height (about 4.5 m) to the floor, where manual stacking is performed. The upward lift conveyor serves mostly to overcome the height difference.
The drive is secured by an electric motor using a drive sprocket. The drive shaft with the engine is always on the top end of the conveyor. Speed can be controlled via a frequency converter. The length of the conveyor is from 1 to 6,5 m and is used to lift the timber (upwards/downwards) with the length of 1-8 m. The conveyor may or may not have steel plates between the tracks.
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