Abstract: Apparatus for unloading particulate catalyst, e.g., cylindrically shaped catalyst, from a multiplicity of elongated reactor tubes is described. The apparatus comprises, in combination, a plurality of coaxial hollow pipe members contiguously arranged and bundled in a pattern reflecting the geometric pattern of the reactor tubes. Each pipe member has a cutting element having an axial passageway throughout its length and slots in the lower wall of the element affixed at one end. The pipe members and cutting elements have diameters smaller than the reactor tubes so that the pipe members can be inserted therein. The other end of the pipe members terminate within a manifold which is connected to a vacuum source. Vibratory means which deliver a downward force are attached to the manifold. In operation, the bundle of pipe members is positioned above the reactor and in line with reactor tubes filled with catalyst and open at both ends.