A machining device for the treatment of products, in particular dental workpieces in a machining chamber surrounded by a housing

摘要

The abrasive mixture supply pipe (53a) runs in a protective flexible pipe (83). This runs from the bottom chamber (81) to a processing chamber (31) which are separated by a sheet-metal wall (59,179). The protective pipe has long sections which bend or fold and the abrasive supply pipe is made of flexible material, pref. plastics, and is movable within the protective pipe. The protective pipe is attached to the separating wall (59) by being screwed onto an armature. ADVANTAGE - Worn feed pipes can quickly and easily be replaced by threading the pipe through the protective pipe.