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Since 1975, ZED Tunnel Guidance has specialised in the development and manufacture of advanced guidance systems for Tunnel Boring Machines, TBM's.

Based on a broad, in-house, foundation of the main engineering principles involved, the company's main strength is its ability to create innovative, modular and a highly reliable range of products, for an application in the toughest of industrial environments underground.

The latest electronic technologies, in both circuit design and manufacturing techniques, provides a stable and robust product platform which permits this small company greater versatility and responsiveness to new developments in other associated area, for instance in theodolite technology, to be applied enhancing the product and helping solve current shortfalls or problems.

Minimised systemBasic systemGlobal Co-ordinate system

Systems can be mounted on all types of TBM design and manufacture, hard / soft rock, where a line of sight exists along the backup / sledge to the shield or cutter-head for a laser or reflector based reference.