Raw material for 2022 Factory Supplier Manufacturer Price PTO Wood Chipper Tractor PTO Driven can be wood logs, stump, branches, shrub, bamboo, wood waste of cutting trees,cotton branches and other fiber stem without wood.This machine can’t cut the following raw material very equal: raw material with too large diameter (exceeding 85% dimension of the in-feed opening),too small diameter (less than 20mm),too short(less than 250mm),too thin (less than 5mm) and very hard,irregular material.