He ʻano ʻano mea hoʻomoʻa rotary intermittent, hoʻohana ʻia i ka ʻenehana pulping alkali a i ʻole sulphate, e kuke ai i nā ʻāpana lāʻau, nā ʻōpala ʻohe, ka mauʻu, ka ʻohe, ka linter linter, ka ʻōpala pulu, ka bagasse.Hiki ke hoʻohui maikaʻi ʻia ka mea kemika a me ka maka i loko o ka digester spherical, ʻoi aku ka maikaʻi o ka pulupulu hoʻopuka, ʻoi aku ka liʻiliʻi o ka wai, ʻoi aku ka nui o nā mea kemika, hoʻopōkole i ka manawa kuke, nā mea hana maʻalahi, haʻahaʻa haʻahaʻa, mālama maʻalahi a mālama.