Vent Door System

VDS doors are designed to cancel the effects of static pressure by the “opposing door panel” design. Making the pressure on the door system equal out and significantly reduces potential stored energy concerns. Allows traffic into neutral airways where a permanent stopping is impossible to construct.

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Escape Tube System

A safer, more versatile and cost effective alternative to conventional underground ladderways.

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Welcome to Demmax

Demmax Enterprises Pty Ltd was established to carry out the supply of underground mining products. Under a license agreement the fabrication, hydraulics and electrical components are completed by Demmax for full product assembly.

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