Closed Cavity Bag Moulding (CCBM)

Bolwell Thailand delivers closed cavity bag moulding solutions for composite structures that require elevated mechanical performance, controlled fiber ratios, and consistent manufacturing quality.

By enclosing the laminate within a sealed mould environment, this process enables precise material consolidation while reducing variability, supporting components engineered for strength, stability, and long-term reliability.

For applications where performance margins matter, closed mould technologies provide a measurable advantage.

Closed cavity bag moulding uses a flexible vacuum bag to encapsulate the laminate within the mould. Controlled vacuum pressure compresses the material stack, removes entrapped air, and supports uniform resin distribution throughout the structure. The outcome is a laminate with improved structural integrity and a refined fiber-to-resin balance compared to traditional open processes.