What happens if a special shape block design is difficult to demold?

What happens if a special shape block design is difficult to demold?

If a special shape block is difficult to demould, its geometry needs to be evaluated together with the mould structure and intended production process. Undercuts, very thin sections, deep cavities or complex internal profiles may require a different design or further technical discussion before manufacture can be confirmed.

Identify what prevents a clear release

Provide drawings that show the full product section and indicate the expected release direction. Mark any feature that could restrict movement or leave a narrow concrete section. For a block already being produced, show where damage or sticking occurs and explain when it appears in the cycle. This defines the difficulty more clearly than a general description that the shape is “complex”.

For applicable special designs, HAWEN's published capabilities include horizontal core pullers, movable mould components and electrically heated demoulding shoes. These are options for technical evaluation, not a statement that every special block needs them or that adding one will solve any release problem.

Review geometry and equipment as one project

Include the machine model, working area, pallet dimensions and available tooling information with the product drawings. State which features are essential and which may be discussed. The review can then consider the block, mould and production interface together. A change to the product or tooling should be confirmed through the project drawings rather than improvised as an operating workaround.

Related mould information

See Special Shape Block Molds for the relevant mould range and drawing requirements.