Cylinder guard is a security device designed to protect the lock cylinder in door hardware from tampering, drilling, and other forms of attack. These guards are typically constructed from hardened steel or other durable materials, enveloping the cylinder to obstruct unauthorised access. By shielding the most vulnerable part of the lock, cylinder guards enhance the overall security of a locking mechanism, making it more resistant to lock picking and forced entry.
In many security-sensitive environments, such as commercial buildings, government facilities, and residential complexes, the installation of cylinder guards is a common practice. These guards vary in design, from simple rings that provide minimal protection to full collars that cover the entire head of the cylinder. Advanced models may also incorporate additional security features such as anti-drill plates and spinning rings that deflect any attempts at picking or drilling.
The effectiveness of a cylinder guard depends on both the material used in its construction and the precision of its fit around the lock cylinder. In high-risk areas, the integration of cylinder guards with other security measures, such as electronic alarms and surveillance systems, creates a comprehensive safety solution, significantly reducing the likelihood of unauthorised entry.