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ERA’s 3* Kitemarked Invincible Double Cylinder Has Competitive Edge

ERA’s 3* BS Kitemarked Invincible Double cylinder is offering fabricators and installers great opportunities for differentiating themselves from their competitors, thanks to its unique features and benefits. And now the cylinder, which has five times the strength of conventional options, is available with a great range of matching ERA compatible handles, escutcheons and furniture.

The strength of the cylinder means it offers maximum protection against attack. In the face of bumping, lock-picking and drilling it simply will not snap, thereby providing an effective and secure solution. The Invincible Door Security system can withstand over 15 minutes of sustained attack without the use of a sacrificial section - so when the intruder has given up and gone the key can still be used to open the door. The Kitemark™ logo stamped on the face of the cylinder provides assurance to the end-user that the 3* Invincible Cylinder meets BSI requirements, and also acts as a visual deterrent to potential intruders due to the unique, sturdy shape of the cylinder.


Steven Panesar, Managing Director of Excel Door Supplies says:

“We have used the 3* Invincible Double Cylinder from ERA for a few years now. It’s great for us because we have customers specifically asking for it due to its great strength. Even trade customers ask us for this, which gives us a great competitive advantage.”


Ideal for new-build projects, the Invincible Double cylinder is manufactured from solid brass and is available in brass and satin finishes. To ensure smooth and consistent performance over time the lock is endurance-tested in ERA’s test house to 100,000 cycles. Supplied with three cut keys, the cylinder is available in single, double and thumbturn options.

No additional security hardware is required alongside the cylinder, to comply with TS007 but installing this three-star option in conjunction with the ERA door security system means you’re fully covered by the ERA Total Security Guarantee, giving the end user further peace of mind and a £5000 guarantee.