Pulping The PDC’s pilot plant is equipped to perform pulping studies to evaluate wood and non-wood raw materials and chemical additives. These studies can be performed on any stage of chemical or mechanical pulp production. Pulping EquipmentOther Capabilities Rocking Digester (4:1 liquor to wood ratio) Steam-Heated Digester (4 cuft capacity) Bomb Digester/Reactor Alkali Profiling Pulping