Alva Four-level Veneer Stacker is an indispensable automated auxiliary equipment in the plywood and veneer processing production lines. Its design goal is precisely oriented to the key processes of grading, sorting and stacking in the veneer (thin wood board) processing flow, and it is core-adapted to the "four-level grading" veneer quality standard commonly used in the plywood industry, providing important support for the standardized and efficient operation of the production line.

In the plywood production chain, after veneers are processed through pre-processes such as rotary cutting and drying, they need to be graded based on core indicators including thickness deviation, surface defects (such as wormholes, cracks, knots) and texture uniformity. 

The "four-level grading" standard is widely adopted in the industry to define veneer quality, and veneers of different grades correspond to the production needs of plywood of different specifications — Grade 1 and Grade 2 veneers are mostly used for the surface layer of plywood, requiring flat surfaces and beautiful textures; Grade 3 and Grade 4 veneers are used for the inner layer or structural filling, focusing on physical strength and dimensional stability. The Four-level Veneer Stacker is developed specifically for this core demand, specially solving the pain points of low efficiency, large errors and irregular stacking in traditional manual sorting and grading.