The new spot feeder concept FEEDEX K VAK (Foseco Foundry Division Vesuvius GmbH) is a further development of the well-proven Compressor spot feeder technology.
The current advantages, such as minimum footprint area, smallest contact area and optimum molding sandcompaction beneath were adopted from the existing FEEDEX K concept (Foseco Foundry Division Vesuvius GmbH). From the first idea to the serial stage, extensive tests were carried out. Prior to casting tests, solidification simulations were conducted for verification purposes.
Within the new concept (Fig. 1, 2 und animation VAK here, Foseco Foundry Division Vesuvius GmbH), a large part of the compressor core is heated by the highly exothermic feeder sleeve material.
- This significantly reduces the contact area of the compressor plate to the green sand by 50% compared to the FEEDEX VSK feeder (Foseco Foundry Division Vesuvius GmbH). The result is an improved feed performance.
- FEEDEX K VAK feeders are used where smallest foot- prints and minimum contact areas are required.
- The application is as simple as with the VSK product line. The self-centering geometry eases the application of the feeder sleeve onto the fixed pin. Furthermore, the feeder residue can be easily knocked-off with little force.