Profile Cylinders for Glass Patch Fittings: Torque Clamping Limits
Engineering Overview: Installation guide for Euro cylinders inside bottom glass patch fittings, detailing torque clamping limits and neoprene cushion gaskets.
Technical & Engineering Specifications
| Hardware | Bottom Glass Patch Rail Lock Housing |
|---|---|
| Application | Frameless Tempered Glass Entrance Doors |
| Clamping Torque | 10 - 12 N.m Controlled Fastening Torque |
| Gasket Isolation | 1.5 mm High-Density Neoprene Cushions |
| Glass Compatibility | 10 mm to 15 mm Toughened / Laminated Glass |
Structural Glass Patch Mounting
In frameless structural glass doors, lock cylinders are housed inside stainless steel bottom patch fittings clamped directly onto tempered glass leaves.
Installation & Clamping Parameters
- Torque Limit: Glass clamp screws must be torqued to $10\text{ N}\cdot\text{m}$ to $12\text{ N}\cdot\text{m}$ using calibrated torque wrenches.
- Gasket Isolation: Fiber-reinforced neoprene gaskets ($1.5\text{ mm}$) must isolate the brass cylinder body from direct contact with tempered glass to prevent point-load stress shattering.
Frequently Asked Engineering & Selection Questions
Q1: Why are neoprene gaskets required when installing cylinders on glass doors?
They distribute clamping pressure evenly, preventing direct metal-on-glass contact that could cause tempered glass doors to shatter.