DIN 18252:2018 German Profile Standard: 30° Tucked Cam Timing Mandate
Engineering Overview: Technical guide on German DIN 18252:2018 profile cylinder standard, defining exact 30-degree rest cam timing, paracentric keyways, and fire door clearance.
Technical & Engineering Specifications
| Standard | DIN 18252:2018-05 Profile Cylinder Standard |
|---|---|
| Profile Section | 17 mm x 33 mm Teardrop |
| Resting Cam Angle | 30° Offset from Vertical Centerline |
| Lockcase Compatibility | DIN 18250 / DIN 18251 European Mortise Locks |
German DIN Standard Cam Timing
DIN 18252 specifies the exact resting angle of the central drive cam on Euro profile cylinders.
The 30° Offset Requirement
- Resting Position: When the key is withdrawn, the drive cam must lock at an angle of 30° relative to vertical, tucked completely inside the cylinder body envelope.
- Preventing Lock Binding: If the cam rested at 0° (straight down), it would contact the mortise lock deadbolt thrower, preventing emergency egress and causing thermal binding.
Frequently Asked Engineering & Selection Questions
Q1: What standard or test protocol is defined here?
Technical guide on German DIN 18252:2018 profile cylinder standard, defining exact 30-degree rest cam timing, paracentric keyways, and fire door clearance.