Gerda PRO System X (WKM4) cylinder insert 35/50 satin nickel, class 6 D, box

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

The Gerda Pro System X anti-burglary cylinder is a high-security locking mechanism designed to enhance the protection of your doors. This anti-bumping and anti-drilling cylinder provides superior defense against intruders, ensuring the safety and peace of mind you deserve. The GERDA cylinder has been rigorously tested by the Institute of Precision Mechanics in Warsaw, adhering to the PN-EN 1303:2015-07 standard, achieving a classification of: 1 6 0 B 0 C 6 D. This GERDA Pro System X cylinder is approved for use in fire-resistant and smoke-tight doors. GERDA Pro System X door cylinders are available in: satin nickel, brass finishes, and versions with a knob, a 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, over 100,000 cycles


• Over 2,700,000 key code combinations


• Highest security class ? 6


• Highest 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. drilling resistance, resistance to mechanical attack)


• Recommended for fire-resistant doors


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


• Anti-picking protection (two additional upper latches)


• Anti-bumping pins to prevent unauthorized opening using bumping techniques


• Additional anti-burglary bar


• New double-diameter pins


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

How to choose the right cylinder size?

Watch the video below.

Valued Customers, Please Choose Carefully

We are committed to your satisfaction and the highest security standards. Therefore, all our certified cylinders are packaged in sealed boxes, guaranteeing their pristine condition and full functionality.

Due to the nature of the product, we cannot accept returns of opened or damaged packages, as these products cannot be re-sold.

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

Thank you for your understanding and we invite you to explore our range of products.