Hand Mould - Injection Moulding

Injection Moulding

In injection moulding, hand moulds refer to simple moulds that have no provision for heat, cooling, or ejection. This means when a hand mould is cycled universal heating plates are required to warm the moulds and the moulds must be removed after each cycle to remove the mouldings. This drastically increases the cycle time, which limits it to short runs, but to offset this is the low cost of the mould. They are usually single cavity moulds, but may be multi-cavity if the moulding is quite small. They are usually only of a two or three plate design because of the simplicity of the parts. If only a short run is required then the moulds may be made from aluminum or brass, but if more parts are required then they are made from conventional steels.