At singly occuring faults, the system immediately changes to the safe condition: it switches off. If for instance in a safety edge a not perfect gluing of the end caps has been made, or sealing becomes worse because the glue becomes brittle, any ingress of insulating matter such as dust and dirt will not lead to a loss of the safety function

mechanical door interlocks and Safety Interlocks

Welcome to Haake Technologies in Germany.

Manufacturer of mechanical door interlocks, locks, safety mats, safety edges and bumpers

A few words

When we started, in 1987, to translate our ideas into products like mechanical door interlocks, we did not have a clue as to where our entrepreneurial trip would end. At the time, production, design, and sales of mechanical door interlocks took place in our parents’ garage! Our’s would have been a short story, if not for the support of our very first customers and suppliers. Because of their original commitment to us, absolute customer orientation is the number one priority for our colleagues and us.

Since our founding, several product groups like mechanical door interlocks have been designed and successfully launched in the machine safety devices market

. With our subsidiaries and distribution partners for mechanical door interlocks in the major industrial countries, we are able to serve our customers in all aspects of labor safety. As a family-owned company, we attach the highest importance to quality for mechanical door interlocks, and for this reason we are proud to connect our own name with our mechanical door interlocks and services. We look forward to your enquiries. We also welcome your comments and any criticism, as this will help us to improve and to create new mechanical door interlocks.

SAFETY INTERLOCKS and mechanical door interlocks

High safety.

mechanical door interlocks: Such guard locking devices are for instance key-operated mechanical interlocks, also called trapped-key systems. They are based on the easy-to-understand premise that a key cannot in two places at the same time - it can for instance be inserted in a switch OR be used for opening a guard.
mechanical door interlocks: Another safety-relevant feature is that a key can only become free in a safe condition, when there are no hazards - a switch is turned off, a guard interlock is closed and locked. The big advantage of the system is the fact that a certain sequence of steps can be predetermined when designing the system. It is not possible to deviate from this sequence - thus a high degree of integrity is achieved. So virtually any hazard can be eliminated.

Haake offers safety interlocks (e.g. mechanical door interlocks) with multifold applications for:

safeguarding operators
Automotive industry
Robots
Machine tools
Automation
Packaging machines
Food
Textile
Breweries
Building industry
Chemical industry
Pharmacy
Plastic processing
Oil / gas
Steel
Mining
Power generation / distribution
Environmental protection
Power stations

Switch HST-S and mechanical door interlocks

mechanical door interlocks: The switch HST-S is used for isolating the machine, in order to permit safe access. After the voltage has been switched off, the previously trapped key can be removed and used for the next step in the sequence, e.g. opening a guard. mechanical door interlocks: The unit is available as an enclosed (IP 65) or a panel mount version. Versions with multiple locks (enclosed version sheet-steel up to 4, panelmount version up to 10) are also available. Further, versions in explosion-proof enclosures (ATEX zones 21 & 22 and 1 & 2) can also be supplied.

mechanical door interlocks

mechanical door interlocks

Here you will find information about mechanical door interlocks and: