Restricted key systems carry a much higher level of security than standard lock and key systems, for a minor increase in cost. The benefits of using a restricted key system include:
Restricted key systems are not much more expensive than conventional locks and should be considered as a long term investment in your security. For example, below are indicative investments for lock cylinders:
For an investment of somewhere between $35 to $95 per door you can achieve the biggest single improvement in security possible. It is important to remember these locks will typically last as long as you do in those premises, so their annualised cost is minuscule compared with the difference they make.
TopLock carries the following restricted key systems. The order below indicates our indicative ranking from highest to lowest security.
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BiLock is a high security restricted key system manufactured by Australian Lock Company. BiLock offers an innovative new design & twin bladed key which operate a 12 pin programme of tumbler pins – 6 on either side. These pins in turn activate 2 sidebars to provide the end-user with up to 17,000,000 possible lock combinations.
In addition to a space age element moving within the key, an extraordinary shaped, horizontally positioned security rod has been built into the cylinder to activate the 13th locking dimension. Without the moving element, this 13th dimension cannot be activated which adds yet another feature to BiLock’s exceptional level of quality.
The BiLock innovation has continued with the development of BiLock Quick Change Core or QCC. Now with QCC re-keying can be as simple as withdrawing a plug & replacing it with another in a matter of seconds.
The main features of BiLock QCC are:
Galaxy is a high security restricted key system manufactured by Australian Lock Company. Galaxy is designed & built for convenience whilst maximising security & offering an enormous depth of possible lock combinations.
Its streamline design eliminates the need for tumbler pins and/or coded discs to create permutations. Galaxy’s extensive product range makes retrofitting existing locks simple and applying new combinations quick & easy.
Galaxy’s stainless steel key comes with a lifetime guarantee against breakage and is available in 21 different key head colours. The key is also available in 3 different orientations making it virtually 3 locks in 1. Internal components use high quality metal injection moulded manufacturing techniques whilst sidebars and anti-drill components are made from high speed steel.
Galaxy also offers both the end-user and locksmith significant legal protection with patents valid until 2024.
MT5 is a Lockwood high security key system manufactured by ASSA ABLOY.
Lockwood MT5 provides the highest possible level of protection against illegal key duplication via the revolutionary Alpha Spring. In addition, every Lockwood MT5 key will be covered by patent protection well into the future.
At the tip of the key is a revolutionary mobile interacting spring – the Alpha Spring – which engages a unique pin at the rear of the cylinder mechanism creating another shearline.
MT5 keys are double sided, meaning they fit into the key slot either way, but only one side is required to deactivate the locking mechanism. This provides a factor of safety if one side of the key is damaged and becomes inoperable, the other side still works.
Generation Six is a medium security Lockwood restricted key system manufactured by ASSA ABLOY. It is what is described as an inline six pin system, meaning the locking mechanism has 6 pins all in one straight line. Conventional key systems that come standard in most doors are inline five systems, meaning there is a slight increase in security because six pins are more difficult to pick than five. It is important to note that the primary increase in security stems from the restricted key duplication functions of restricted key systems.
GP1 & LA Series 6
These are medium security restricted key systems with an inline six pin, meaning the locking mechanism has 6 pins all in one straight line. Conventional key systems that come standard in most doors are inline five systems, meaning there is a slight increase in security because six pins are more difficult to pick than five. It is important to note that the primary increase in security stems from the restricted key duplication functions of restricted key systems.
JA, JB, JC, LG2 & BPA Series keys
These were medium security restricted key systems, but as the patent has expired on them, they are considered low security key systems and offer no security benefits over standard locks. Once the patent expires on a restricted key system it is no longer “restricted” which means that anyone can duplicate the keys without your authority, losing the protection of knowing who has keys to your locks.
The other problem with expired systems is that the manufacturer stops producing parts and key blanks for the lock system, making it more difficult to repair locks are parts become more difficult to source.
If you have an expired system and security is important to you, we would highly recommend you consider replacing your expired system with a current restricted key system.
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