A stack mould can double the production capacity in comparison with a single-face mould in the same injection moulding machine. Because forces between cavities cancel each other out, the required clamping force in a stack mould is basically the same as in a single-face mould.

Main advantages of stack moulds are as follows:

  • Double production capacity;
  • Optimum use of production floor space;
  • Lower energy consumption;
  • Lower production costs per unit (product);
  • Lower labour costs per unit.

Stack moulds are especially suitable for packaging industry, for lids and caps, as well as elsewhere where large quantities are required. They are also applicable in production processes with long cycle times.

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