The re-chipper is used in the production of raw materials for wood-based panel, paper-making, namely the auxiliary products of wood chips production, and is used for cutting big wood chips that have been chipped and sifted, and cutting joiner's leftover bits and other short material, imporving the comprehensive utilization ratio of timber.The re-chipper has the characteristics of compact structure, simple operation, high production capacity, safe and reliable, convenient maintenance, high qualified rate and long service life, and it can satisfy the re-chipper requirements for big wood chips in pulping, paper-making and wood-based panel industries.