Product Safety, Experience, Robust and Innovative Technology

HAUX-LIFE-SUPPORT – Tunneling Technology

For tunnel construction and for the underground and civil engineering industries, HAUX-LIFE-SUPPORT delivers personnel lock and material lock systems as well as combination systems, pressure wall systems and oversized lock gates and medical treatment locks, all produced with the most robust and modern technology.

HAUX offers short delivery times, highest quality, flexibility and excellent price-performance, thanks especially to our own pressure vessel and steel construction facilities.


Medical locks of the type HAUX-STARMED/KD are used worldwide on tunneling and underground construction sites, primarily as a modular container-integrated system. This hyperbaric treatment chamber is used for emergency treatment of workers and divers with decompression sickness. The standard HAUX-STARMED/KD systems have a diameter of 2000 mm and a maximum operating overpressure of 5 bar, corresponding to a working depth of 50 meters. Special versions with higher pressures or with the possibility of the docking of a transport chamber can be produced on request.

Let us know your specific operational requirements and we will be happy to work with you to find the ideal technical solution. Besides the standard equipment, we offer many modular options including mixed-gas breathing systems, heating and cooling, computer control systems and many more.

Depending on availability, we also offer rentals of containerized HAUX-STARMED/KD systems.

Personnel air locks of the type HAUX-TUNNELSTAR/P are manufactured according to specific customer requirements. Whether three, two or single-compartment locks, or a capacity from 2 people up to large locks for 40 people and pressures up to 10 bar and more – let us know your operational profile and parameters and we can prepare a tailor-made proposal for you.

We have produced innumerable HAUX-TUNNELSTAR systems in a wide variety of designs and in various dimensions, for example:

  • Horizontal single or double cylinder
  • Stair-stepped (split level) format
  • Omega-shaped flattened cylinders
  • Cylindrical, standing as locking dome
  • Rectangular format
  • Personnel lock formed by several pressure walls, e.g. in a tube propulsion system

These HAUX-TUNNELSTAR systems are extremely robust as well as clearly arranged and easy to operate, allowing occupants to be comfortably locked-in and out of the pressurized working area. Besides the standard equipment, we offer many modular options, for example:

• Round or rectangular doors
• Oxygen breathing systems with associated monitoring controls
• Heating/cooling systems
• Computer control systems and much more

Depending on availability, we can also offer HAUX-TUNNELSTAR/P personnel air locks as used units or for rental.

Material locks of the type HAUX-TUNNELSTAR/M are produced according to our customer’s specific profiles and requirements.

Whether you need a horizontal or vertical lock as a flat or standing cylinder, as a rectangular pressure vessel or a system formed by several large doors, and with pressures up to 5 bar and more – just let us know your specific requirements and we will find a special solution for you. These systems are extremely robust, clearly arranged and easy to operate, allowing material to be comfortably locked-in and out of the pressurized working area.

Besides the standard equipment, we offer many modular options including round or rectangular doors, PLC computer controls, collapsible track systems, equipment sets for emergency locking-in/out of personnel, and many more.

Depending on availability we can also offer HAUX-TUNNELSTAR/M material locks as used units or for rental.

HAUX-TUNNELSTAR/PW pressure wall systems can be used to form a personnel air lock, e.g. in connection with a pressure-resistant concrete pipe on site, in order to enable the transfer of persons and material.

The system can be delivered in any requested diameter and can be equipped with a wide range of modular options, including:

  • Round or rectangular doors
  • Valve units for pressure indication, registration and control
  • Oxygen breathing systems with associated monitoring controls
  • Heating/cooling system
  • Computer control system and much more.

With HAUX-MASTERDOOR systems, material air locks can be created in connection with a pressure-resistant concrete vessel on site, allowing the locking-in and out of complete tunnel trains or large equipment such as excavators or wheel loaders.

An extensive range of equipment and components are available, such as control valve units for increasing and decreasing pressure, PLC computer controls, collapsible track systems, equipment sets for emergency locking-in/out of personnel, and many more.

According to availability we also offer HAUX-MASTER-DOOR large door systems as used units or for rental.