GERDA PRO System 45G/30 insert with knob, satin nickel, class 6 D

GERDA Pro System Anti-Burglary Cylinder ? Unparalleled Door Security

The GERDA Pro System 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 unparalleled effectiveness. The GERDA WKM4 cylinder has been rigorously tested by the Institute of Precision Mechanics in Warsaw, meeting the PN-EN 1303:2015-07 standard and achieving a 1 6 0 B 0 C 6 D classification. The GERDA Pro System cylinder is approved for use in fire-rated and smoke-proof doors. GERDA Pro System door cylinders are available in satin nickel and brass finishes, and in versions with a knob, thumb turn (WKM4), and a gear (WKM4Z).

• Cylinder classification according to PN-EN 1303:2015-07: 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


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


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


• Recommended for fire doors


• Anti-drilling protection (internal cylinder protected by a hardened steel plate)


• Anti-picking protection (two additional upper latches)


• Anti-bumping pins to prevent unauthorized opening


• Additional anti-burglary bar


• New double-diameter pins


• Includes 5 drilled keys, a code card, screw, and elegant packaging.

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Valued Customers, Please Choose Carefully

We are committed to your satisfaction and highest safety standards. Therefore, all our certified cylinder locks are packaged in sealed boxes guaranteeing their integrity and full functionality.

Due to the nature of the product, we cannot accept returns of opened or damaged packaging, as these products cannot be resold.

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

Thank you for your understanding. Explore our range of products!