Gerda PRO System X (WKM4) cylinder insert 30/35 satin nickel, class 6 D, box

GERDA Pro System X Anti-Snap Cylinder ? Uncompromising Door Security

The GERDA Pro System X anti-snap cylinder is a high-security solution for mortise locks, safeguarding your home from intruders. This anti-bumping and anti-drilling cylinder provides superior protection. The GERDA cylinder is tested by the Institute of Precision Mechanics in Warsaw, complying with PN-EN 1303:2015-07, achieving a classification of: 1 6 0 B 0 C 6 D. The GERDA Pro System X cylinder is approved for use in fire and smoke-resistant doors. GERDA Pro System X door cylinders are available in: satin nickel, brass finishes, and with a knob, key-holding mechanism (WKM4), or a gear (WKM4Z).

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


• Certificate issued 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)


• Resistance to attack: Class D ? highest (5/10 min. drill resistance, 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 unwanted opening by bumping


• Additional anti-snap bar


• New double-diameter pins


• Includes 5 high-security keys, a key code card, screw, and stylish 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 safety standards. Therefore, all our certified cylinder locks are packaged in sealed boxes to guarantee their condition and full functionality.

Due to the nature of the product, we cannot accept returns of opened or damaged packaging as we cannot resell these items.

Please carefully review the technical specifications and accurately measure your door dimensions before purchasing. If you have any questions or concerns, our team is available and happy to assist you in choosing the right product.

Thank you for your understanding and we invite you to explore our offer.