MEDEKO - Your partner for castings and machining

Our aim is to work jointly with our customers and contribute to their casting projects already from the design stage. We can translate years-long experience of Medeko engineers into very efficient cooperation. Series production starts only when the casting design has been optimised. The result is high casting quality at an excellent price.

Step one - Mould making based on the customer documentation. A drawing and a 3D model provide a basis for the mould making and start of production.

Step two - Wax model making and assembly. To make a casting, first we must produce its positive wax copy using injection moulding tools. Such wax models are then adhered to a runner system and thus form what is called a tree.

Step three - Ceramic shell making. The trees are first dipped in a slurry, a mixture of special bonding agents and ceramic sands, and then sanded. This process is repeated 6 to 10 times. The tree must dry for some time between two coatings.

Step four - Burnout and ceramic shell firing. After the ceramic shells have dried, hot pressurised steam is used to remove the wax from the ceramic shell. Then, the empty shell is fired in an annealing furnace at approx. 1,100 °C. Now the shell is sufficiently strong and ready for the casting.

Step five - Casting. The molten metal is poured directly into the annealed shells. This is where we are able to assure high surface quality and dimensional precision.

Step six - Shell removal, and cutting away and finalisation of castings. Casting are separated from the runner system and undergo further heat treatment and machining according to customer's wishes.

All the more frequently our customer demand only very small amounts of units to be manufactured, or even a single one. In such case, it is not necessary to expend money on the mould production. With the rapid prototyping technology, we can make a positive casting model which will substitute the conventional wax model. Rapid prototyping is suitable for unit or small-series manufacture.

A majority of castings receive heat treatment and are further mechanically machined according to customer requirements. Most common casting machining operations include drilling, milling and turning. Other special machining operations can be delivered on demand.

MEDEKO makes efforts to deliver a product that is completely finished. Where the casting requires further surface treatment, we are able to provide plating with zinc, nitride, or nickel; polishing; electrolytic polishing; lacquering; powder lacquering.

We employ the most advanced technologies in the mould manufacture, including 5-axis machining centres and latest CAD system versions. High-quality design and workmanship of the mould are the key to a high-quality casting.