Key components of an effectively engineered mold base include:
1) Manifolded water channels—Custom-sized to each application to ensure optimal cooling, minimal connections and simple installation.
2) Robust ejection systems—Sized to meet the requirements of the application, and configured to the molder’s machine and facility requirements. Key components of a robust ejection system include:
A) Hydraulic cylinders with manifolded hydraulic lines, and standard cylinder sub-assemblies for easy replacement;
B) Pneumatic cylinders with internally balanced air lines for even actuation;
C) Rocker arms that are fully hardened to provide extended life and configured to meet the stroke and dwell requirements of the application.
3) Oversized Alignment Components—These provide long-term durability of mold surface components and require less maintenance, specifically:
A) Large tight-toleranced leader pins and bushings assist in providing smooth mold plate actuation, and ensure rigidity of the complete system;
B) Hardened taper locks and straight-side interlocks ensure accurate parting line alignment, longer life of the mold surface components and consistent molded parts.
A complete mold base project should include:
Reviewing specific application and proposed insert concepts;
Evaluating machine and facilities that will accept the mold base;
Design assessment of the final mold base system: it’s functionality and installation requirements;
Assembly and test of the mold base;
Shipment of the mold base to the moldmaker for installation of inserts;
Field assistance with start up, preventative maintenance and global spare parts support.