Gerda PRO System X (WKM4) 45/45 satin nickel cylinder, class 6 D, box

GERDA Pro System X Anti-Burglary Cylinder ? Unparalleled Door Security

The GERDA Pro System X anti-burglary cylinder is a high-security lock insert designed for mortise locks, providing superior protection against intruders. This anti-bumping and anti-drilling cylinder safeguards your home with unmatched reliability. The GERDA cylinder has been rigorously tested by the Institute of Precision Mechanics in Warsaw, meeting the PN-EN 1303:2015-07 standard and achieving a classification of 1 6 0 B 0 C 6 D. The GERDA Pro System X cylinder is approved for use in fire-rated and smoke-tight doors. GERDA Pro System X door cylinders are available in satin nickel and brass finishes, and also in versions with a knob, thumb turn (WKM4), and a gear (WKM4Z).

• Cylinder classification according to PN-EN 1303:2015-07 standard: 1 6 0 B 0 C 6 D


• Certified by the Institute of Precision Mechanics


• Exceptional mechanism durability ? 6 pins, exceeding 100,000 cycles


• Over 2,700,000 key code combinations


• Highest security class ? 6


• Top-tier burglary resistance ? Class C (high) according to KT/402/IMP/2014


• Superior corrosion and temperature resistance -20/+80 degrees Celsius ? Class C (highest)


• Attack resistance: Class D ? highest (5/10 min. drill resistance, superior resistance to mechanical attack)


• Recommended for fire doors


• Anti-drilling protection (internal cylinder secured with a hardened steel plate)


• Anti-picking protection (two additional upper latches)


• Anti-picking pins preventing unauthorized opening via bumping


• Additional anti-burglary bar


• New double-diameter pins


• Includes 5 high-security keys, a code card, screw, and elegant packaging.

How to choose the right cylinder size?

Watch the video below.

Valued Customers, Please Choose Wisely

We are committed to your satisfaction and the highest safety standards. All of our certified cylinder locks are packaged in sealed boxes to guarantee their pristine condition and full functionality.

Due to the product's nature, please note that we cannot accept returns of opened or damaged packages, as we cannot re-introduce such products into our sales inventory.

Please carefully review the technical specifications and precisely measure your door dimensions before purchasing. If you have any questions or concerns, our team is here to assist you in selecting the perfect product.

Thank you for your understanding. Explore our product range today!