Dual Anti-Snap Cuts: Secondary Sacrificial Line for Extra Long Cylinders (>90mm)
Engineering Overview: Engineering guide on dual sacrificial anti-snap cuts for long Euro cylinders (90mm to 130mm), preventing compound bending attacks.
Technical & Engineering Specifications
| Feature | Dual Sacrificial Anti-Snap V-Grooves |
|---|---|
| Material | Solid H59 Brass with 40Cr Alloy Steel Spine |
| Standard | TS007 3-Star / Sold Secure Diamond |
| Cylinder Lengths | 90 mm to 130 mm Extra-Long Profiles |
Extended Cylinder Snapping Risk
Extra-long cylinders (e.g. 45/55 mm or 50/60 mm for thick insulated doors) provide high clamping leverage. A single anti-snap cut near the face can still leave 30 mm of exposed metal after snapping.
Dual Sacrificial Line Architecture
- Primary Notch (12 mm from face): Breaks during light attacks.
- Secondary Notch (25 mm from face): Fractures during heavy lever attacks, ensuring the remaining core always stays completely flush with the door escutcheon.
Frequently Asked Engineering & Selection Questions
Q1: Why do long lock cylinders feature dual anti-snap cuts?
On extra-long cylinders (>90mm), two sacrificial cuts ensure that no matter how deep an attack penetrates, the lock breaks flush with the door.