Anti-Plug Pulling Flanged Rotor Shoulders: Withstanding 15 kN Tensile Extraction
Engineering Overview: Technical analysis of flanged rotor shoulders and hardened retaining circlips withstanding 15 kN tensile extraction attacks on lock cylinder plugs.
Technical & Engineering Specifications
| Standard | EN 1303:2015 Attack Resistance Grade D |
|---|---|
| Plug Material | Solid Extruded H59 Brass (CW617N) |
| Anti-Attack Feature | Flanged Core Shoulder & Hardened Steel Circlip |
| Tensile Pulling Resistance | > 15 kN (1,500 kg force) |
Corkscrew Extraction Defense
In plug-pulling attacks, high-strength screws are driven into the keyway to pull the rotating core out axially with hydraulic tools.
Defensive Engineering
- Flanged Plug Shoulder: The internal end of the rotating brass plug features a wide mechanical shoulder ($\Phi 15.0 ext{ mm}$) bearing against the solid cylinder body bulkhead.
- Hardened Spring Circlip: 0.8 mm spring steel retaining ring (58 HRC) anchors the plug against $>15 ext{ kN}$ axial tensile force, satisfying EN 1303:2015 Grade D.
Frequently Asked Engineering & Selection Questions
Q1: How does a lock cylinder resist 15 kN plug pulling?
The inner end of the plug has a wide flanged shoulder and a 58 HRC steel retaining ring that mechanically anchor it inside the solid body.