|
|
|
|
The contact chain-type safety edge in a correspondingly designed configuracion meets category 3 of EN 954-1 – even he sensor part. A model meeting highest category 4 is also available. Double-channel design or redundancy is not necessary for this system, since the failure mode analysis made by the German test house BG has shown: a single fault does not lead to a loss of the safety function. This permits a simple construction of the system. key transfer systems and Safety InterlocksWelcome to Haake Technologies in Germany. Manufacturer of key transfer systems, locks, safety mats, safety edges and bumpersA few words When we started, in 1987, to translate our ideas into products like key transfer systems, we did not have a clue as to where our entrepreneurial trip would end. At the time, production, design, and sales of key transfer systems 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.
SAFETY INTERLOCKS and key transfer systemsHigh safety. key transfer systems: 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. Another safety-relevant feature of the key transfer systems 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 key transfer systems 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. Advantages of Haake key transfer systemsBenefits offered by the trapped-key system, e.g. key transfer systems:- high safety, individual codes - only pre-determined sequences securing safety are possible - no spare tongue "in the pocket" - no cables to the individual guards (cost saving, faults prevented) - easy retro-fitting - guard interlocks have locking feature - particularly suited when there are different energy sources for the machine (electric, pneumatic, ...) - in areas where people might get trapped: personal safety key - simple possibilities for teach in - time delay due to key transfer between switch and guard interlock - run-down processes come to a standstill (if necessary, extend by additional unit) Haake offers safety interlocks (e.g. key transfer systems) 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 key transfer systemskey transfer systems: 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. The key transfer systems 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. |
key transfer systems
Here you will find information about key transfer systems and: |
|
