Fette Gmbh

Wilhelm Fette Gmbh

Jürgen Schikowski

Ingo Schmidt

Jan Naeve

Harald Römer

Friedrich Meissner

Thorsten Ehrich

Helmut Bommrowitz

Rudiger Schlierenkamper

Reinhard Wagner

A punch for a rotary press, which has a shaft and a head, wherein the head has an upper mirror surface, a cylinder surface and a rounded transition area between the mirror surface and cylinder surface with a first and a second radius, wherein the first radius is larger than the second radius and wherein the punch head also has a preferably conical transition area from the cylinder surface to the shaft, wherein the diameter of the head is less than 25 mm and the first radius of the transition area is selected such that its height is less than half the height of the cylinder surface.

Punch for a rotary press

Rotary press comprising a rotor rotatably driven about a vertical axis, said rotor exhibiting a die plate and upper and lower punches which are vertically guided in guides of the rotor working together with die holes in a die plate, at least one press station which exhibits an upper and a lower pressure passed by the punches and through which the punches are moved towards the die hole in order to compress the material in the die hole, characterized in that the rotor is provided with means which act upon compacts or parts thereof which adhere to the pressing surface or which means eliminate or prevent an adherence of a compact or parts thereof to the pressing surface of the upper punch, respectively, during the return stroke.

Rotary press

A press ram for use in a pelleting machine for making tablets including a rod-shaped ram holder, having at one end a head for engagement with cams and at its other end an axial bore, a ram insert, having at one end a pressing portion shaped in conformity with the profile of a tablet and at another end a cylindrical shaft, which is substantially matingly received in the bore of the ram holder, a radial shoulder of the ram insert thereby engaging the facing end of the ram holder, and a mechanism for releasably holding the ram insert within the ram holder. An improvement in the press ram including the wall of the bore of the ram holder including a groove, the ram insert including an axial bore for receiving an actuating pin at an end remote from the pressing portion, which actuating pin cooperates with at least one clamping element within a radial bore so as to urge the clamping element or a further clamping element actuatable by the first mentioned clamping element into the groove of the ram holder when the actuating pin is moved in a direction towards the clamping element.

Press RAM for a pelleting machine

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Schwarzenbek, Germany

Jürgen Schikowski