Calibrated 18 N.m Sacrificial Cam Shear Pins for Gearbox Protection
Engineering Overview: Technical analysis of calibrated sacrificial shear pins connecting cylinder plugs to drive cams, protecting internal multi-point lockcase gearboxes under forced vandalism.
Technical & Engineering Specifications
| Benefit | Prevents catastrophic door destruction during vandalism |
|---|---|
| Protects | Multi-Point Lockcase Gearboxes & Shootbolts |
| Mechanism | Calibrated Torque-Limiting Cam Shear Pin |
| Shear Limit | 18.0 N.m +/- 2.0 N.m |
Protecting High-Value Multi-Point Gearboxes
Forcing heavy pipe wrenches on a key can destroy expensive internal multi-point lockcase gearboxes inside the door.
Calibrated Shear Pin
- 18 N·m Shear Limit: A precision brass pin connects the plug to the cam with a calibrated shear threshold of $18\text{ N}\cdot\text{m}$.
- Controlled Failure: Excessive torque shears the pin, spinning the plug harmlessly without damaging the internal lockcase deadbolt.
Frequently Asked Engineering & Selection Questions
Q1: What anti-attack mechanism is detailed here?
Technical analysis of calibrated sacrificial shear pins connecting cylinder plugs to drive cams, protecting internal multi-point lockcase gearboxes under forced vandalism.