TEKCAST – a spin casting technology with vertical axis of flexible mould rotation

The technology of spin casting in flexible moulds was developed by TEKCAST – an American Company offering very interesting solutions in both design and technology.

TEKCAST is a highly efficient (especially in large lot production of small castings) method of spin casting of non-ferrous metal alloys into flexible moulds. It is also suitable for prototype-making, when the “from idea to first casting” time should be as short as possible.

TEKCAST is a good supplement of other near-net-shape technologies, introducing quite novel solutions in materials and machine design.

TEKCAST belongs to a group of special technologies assigned mainly for the manufacture of near-net-shape castings produced in weight ranges from 1 gram to several dozen decagrams.

Cast materials used in this technology include alloys of zinc, tin, lead, sometimes also aluminium and low-melting alloys. The alloy very popular in TEKCAST technology is ZAMAK. The technology is used by the well-known world companies, e.g. HYUNDAI, AUSTIN, SINGER, itd.

A casting post consists of:


• Vulcaniser for moulds made from special temperature-cured rubber,
• Spin casting machine with vertical axis of rotation,
• Furnace for alloy melting.

The main advantage of this technology is the short time required for making a die and the ready castings, prototypes included.

Casting quality depends on:


• Proper selection of mould material,
• Parameters of vulcanisation,
• Alloy pouring and solidification time,
• Mould venting system,
• Alloy pouring temperature,
• Pressure exerted on mould by the rotating disc,
• Spinning velocity of the set.

TEKCAST offers the following advantages:


• Possible manufacture of castings varied in respect of shape and weight, like decorative parts, cams, levers, etc.,
• High quality of castings,
• Simple design and failure-free running,
• Low investments necessary for production start up,
• No big space required for installation of the TEKCAST spinning casting set,
• High productivity,
• Low rate of electric energy consumption.