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Core and cavity mold parts are key forming components in precision injection molds. The cavity usually forms the external surface of the plastic part, while the core forms internal structures, holes, ribs or recessed features. As a specialized precision molding company, Dongguan City Fangling Precision Mould Co., Ltd. manufactures custom core and cavity mold parts according to customer drawings, 3D models and mold design requirements, supporting precision mold manufacturing, mold repair and replacement mold spare parts.
A core is a preformed, bonded, sand insert placed into the mold to shape the interior of a casting or a part of the casting that cannot be shaped by the pattern. Cores are frequently used to create hollow sections or cavities in a casting.
The core & cavity are the shaped sections in either half of the mould tool which give the plastic product its final shape. The hot molten material is injected into the core & cavity and then sets hard into shape. The design of this type of mold spare parts is essential in the correct formation of the product.
Fangling manufactures custom core and cavity mold parts for precision injection molds based on customer drawings, 3D models and mold design requirements.
Our core cavity mold parts can include mold core inserts, mold cavity inserts, core pins, cavity blocks and replacement mold spare parts, supporting new mold manufacturing, mold repair and precision injection molding projects.
Green Sand Core: A core formed by the pattern itself, in the same sand used for the mould is known as green sand core. The pattern is so designed that it provides the core of green sand. The hallow part in the pattern produces the green sand core.
Dry Sand Core: A core is prepared separately in core boxes and dried, is known as dry sand core. The dry sand cores are also known as process cores.
The quality of core and cavity mold parts depends on proper material selection, accurate machining and dimensional control.
Fangling can process custom mold core and cavity components through CNC milling, EDM sinking, wire cutting, grinding and polishing according to customer drawings and requirements. Key dimensions and fitting positions are inspected before delivery to support stable core cavity mold assembly and precision injection molding production.
