Generally PolyGlobal’s cast tooling falls into 4 main categories depending on cost, profile of the finished part and usual batch quantities.
- Open Cast – These primarily require one main flat face on the finished part with limited negative angles. Usually made from aluminium or steel these are our default option as they provide a good balance of cost, quality and processibility
- Closed Cast – These allow for profile details across all sides of the part but lead to increases in porosity or the requirement of vents/moulding sprues. They are the most expensive mould option and lead to longer production times due to additional requirements in demoulding.
- Standard Moulds – Associated with our range of rods and sheets, standard moulds can be open or closed but have fixed dimensions and are more limited in the specifications that can be provided.
- Temporary – Can be produced as reverse moulds from existing parts or formers. They are very cost effective but are limited in their accuracy and result in low-quality surface finishes. These are not suitable for long term or high-volume production of parts as they generally degrade through regular use. They have a limited life expectancy and are not suitable for all products