How does the GERDA MASTER KEY system work?

The Master Key system comprises keys and various types of locks designed so that a single key can be used to open the number of locks specified by the purchaser. The Master Key system may include various types of lock cylinders, industrial locks, furniture locks, etc.

What are the advantages of the Master Key system?

• in case of danger, all doors can be unlocked using a single key,
• the system prevents the unauthorised copying of the key – the key profile is restricted and patented,
• the system owner specifies the number of keys and persons authorised to unlock specific rooms,
• a well-developed system enables to significantly reduce the number of keys used on a given site, which translates to lower costs,,
• authorised persons can order additional keys and locks without leaving home,
• our products are of high quality, guaranteeing that all locks will function properly for a long time,
• the system can be implemented in stages.

The Master Key system is a comfortable solution

• Had enough of looking for the right key every day??
• You could use a single key to open all locks, ensuring a simple and quick communication across the building.

A unified lock system – all locks are unlocked using the same key.

Master Key system – the master key unlocks doors to all rooms inside the building.
Individual rooms are opened using only individual keys.

Central lock system – individual keys to a single room (apartment) can also unlock common areas/doors (gates, stairwells, garage entrances, garbage enclosures, etc.). Particularly useful in residential zones.

Central Key System – dedicated for large office and industrial buildings, schools, hospitals, etc. Depending on the organisational structure, several groups of keys may operate within the system, subordinated to the overriding Master key that services the entire system.

MarK100 is a lock dedicated for use in the system.

• Six-tumbler design;
• Anti-drill protection – anti-drill pins in the cylinder and the lock body plus a ball in the cylinder;
• Protection against unlocking using vibration-based methods;
• Over 100,000 combinations;
• Semi-cylinders with adjustable jaw clutches;
• Cylinders available with sprockets and knobs;
• Locks available in the AB system;
• S60 brass or universal padlock with a semi-cylinder available;
• Key profile is restricted and patented in the patent office, and is not available in key copy kiosks;
• The key profile is protected from unauthorised copying;</li3C/li>
• Locks available in the AB system;
• S60 brass or universal padlock with a semi-cylinder available;
• Key profile is restricted and patented in the patent office, and is not available in key copy kiosks;
• The key profile is protected from unauthorised copying;
• The body and the cylinder are made of brass;
• Available surface finishes: nickel and brass;
• Keys are made of brass with high nickel content;
• The system can be combined with a Gerda Lock lock.

How to correctly measure the cylinder?

1. Measure the distance between the lock axis and the edge of the door (dimension A) and add the thickness of the escutcheon used.
2. Measure the distance between the lock axis and the edge of the door (dimension B) and add the thickness of the escutcheon used.