Technical Specifications & Component Matrix
| Parameter | Component Details |
| Product Type | Anti-Breaking Cylinder Bar Insert (Anti-Snap Reinforcement Bar) |
| Material Composition | Special Steel (High-tensile alloy steel) |
| Installation Location | Embedded at the base of the Euro profile cylinder housing |
| Primary Mechanical Function | Structural reinforcement against physical cylinder snapping and bending |
| Target Critical Zone | Central mounting screw area (Cylinder bridge section) |
| Compatible Formats | Euro Profile Cylinders (Double, Thumbturn, and Modular housings) |
| Dimensional Compatibility | Machined to fit standard Euro profile bottom spine slots |
| Supply Mode | OEM component supply for lock cylinder manufacturing and assembly |
Component Breakdown & Integration Diagram
Hardware Specifications
- Special Steel Construction: Engineered from high-strength special steel to resist tensile bending stresses, offering significantly higher yield strength than standard brass.
- Housing Spine Placement: Positioned continuously along the bottom section of the brass housing, bridging directly across the central cam recess and M5 fixing hole.
- Solid Mechanical Retention: Fitted into a dedicated precision slot in the cylinder body, mechanically bonding the front and rear cylinder halves together.
Core Engineering Advantages
Reinforcement of Critical Vulnerability Point
In standard Euro profile cylinders, the cross-sectional area around the central M5 mounting screw hole is the thinnest and most vulnerable point of the lock body. The special steel bar bridges this weak zone, redistributing applied bending forces along the full length of the housing.
Resistance to Torsion and Snapping
When exposed to unauthorized tool gripping or manual torsion attacks, the special steel insert resists snapping, preventing the exterior half of the cylinder from detaching and exposing the central lock mechanism.
Standard Profile Compatibility
The insert is designed to sit completely flush within the lower spine of the housing, ensuring the finished cylinder retains standard DIN dimensions without interfering with standard European mortise lockcases.
Primary Application Environments
- Lock Cylinder Manufacturing Facilities: Integrated during the factory production of reinforced, high-security Euro profile cylinders.
- Commercial & Residential High-Security Doors: Suitable for exterior entrance doors where physical attack resistance is specified.
- Modular Hardware Assemblies: Compatible with modular connecting bridges to provide combined length adjustability and anti-breaking capability.
B2B Procurement & Supply Terms
- Supply Format: Bulk supply for lock assembly factories and OEM manufacturers, packed in anti-corrosion industrial packaging.
- Production Lead Time: Typically 30 to 45 days based on batch size and required profile lengths.
- Technical Integration: 2D dimensional drawings and tolerance specifications available to assist partner factories with housing slot milling.
- Incoterms & Shipping: FOB Ningbo, Shanghai, or Tianjin.
Frequently Asked Questions
The anti-breaking bar is seated into a dedicated slot along the lower spine of the cylinder housing, extending directly beneath the central cam and mounting screw aperture to connect the two cylinder halves.
The bar is manufactured from high-tensile special steel, selected for its resistance to bending and snapping forces compared to standard solid brass.
A sacrificial cut is an engineered break line that allows the front part of the cylinder to snap off safely, whereas an anti-breaking steel bar is a rigid structural reinforcement designed to physically prevent the cylinder housing from snapping in half at the center.
