Technical Specifications & Configuration Matrix
|
Parameter |
Specification Details |
|
Standard Profiles |
Euro Profile (DIN 18252 / EN 1303), US Mortise, Rim Cylinder |
|
Body & Plug Material |
Extruded Solid Brass (CuZn40Pb2 / C37700) |
|
Pins & Springs |
Nickel Silver pins, Stainless Steel springs |
|
Emergency Function |
Bi-directional clutch mechanism (Danger Function / Emergency override) |
|
Standard Lengths |
Symmetric: 30/30mm – 60/60mm; Asymmetric: 30/40mm up to 50/70mm (custom increments available) |
|
Cam Configurations |
DIN 15-tooth cam (standard), specific custom cams available upon request |
|
Durability Grade |
Tested to 100,000 operation cycles (EN 1303 Grade 6) |
|
Security Ratings |
Anti-drill pins, anti-pick mushroom pins, anti-bump architecture |
|
Surface Finishes |
Satin Nickel (SN), Polished Brass (PB), Satin Chrome (SC), PVD Black |
|
Keying Options |
Keyed Different (KD), Keyed Alike (KA), Master Keyed (MK), Construction Keyed |
Material & Manufacturing Process
Precision Extrusion & CNC Machining
Cylinder bodies are hot-forged or extruded from high-density solid brass blocks. Keyway broaching and pin-hole drilling are executed on multi-axis CNC lathes maintaining dimensional tolerances within +/-0.02 mm, ensuring fitment into standard DIN and ANSI mortise lock cases.
Internal Pin & Clutch Assembly
• Pin Stack: Comprises nickel-silver master pins and driver pins paired with hardened steel anti-drill inserts.
• Clutch Mechanism: Factory-calibrated dual-action spring clutch ensures engagement between the exterior key plug and the central cam during emergency override.
Surface Treatment
Components undergo ultrasonic degreasing, copper-nickel-chrome electroplating, or physical vapor deposition (PVD). Salt spray corrosion resistance exceeds 96 hours (ASTM B117 / EN 1670 Grade 4).
Quality Control & Testing Protocol
Dimensional Verification: Optical comparator and digital air gauge inspection of keyway depth, plug clearance, and cam alignment.
Torque & Stress Testing: Automated torque testing rigs apply rotational force up to 15 Nm to verify shear resistance of the cylinder core and cam retention.
Cycle Testing: Pneumatic endurance test benches cycle the cylinder through 100,000 locking and unlocking rotations under load.
Bumping & Picking Resistance Audit: Random sampling tested against industrial bumping keys and tension tools.
Factory Infrastructure & Production Capabilities
Machining Floor: 45 CNC automated rotary transfer machines and high-speed vertical milling centers.
Assembly Lines: 6 semi-automated pin-insertion and key-combination assembly lines with optical verification sensors.
Production Capacity: 150,000 cylinders monthly.
OEM/ODM Support: Custom laser-etched branding, bespoke key profiles, master-key chart generation, and project-specific packaging.
Frequently Asked Questions
Q: What is the function of the emergency clutch mechanism in this cylinder?
A: The internal clutch (danger function) decouples the interior thumbturn from the exterior key plug. If an occupant leaves a key inserted or turned on the inside, an authorized user can insert an exterior key, bypass the internal obstruction, rotate the cam, and retract the latchbolt.
Q: What standards do these cylinders meet?
A: Cylinders comply with EN 1303 (Durability Grade 6, Attack Resistance Grade 2) and DIN 18252 standards. Test reports from accredited third-party laboratories (e.g., TUV, Intertek) are available upon request.
Q: Can these cylinders be integrated into an existing master key system?
A: Yes. Master Key (MK), Grand Master Key (GMK), and Central Cylinder (CC) hierarchies are supported. Key bitting data is managed via secure software to prevent key duplication overlaps across batches.
Q: What is the MOQ for custom lengths and finishes?
A: For standard catalog sizes and finishes (Satin Nickel / Polished Brass), the MOQ is 200 units per specification. For custom asymmetrical lengths, non-standard cam profiles, or restricted key blanks, the MOQ is 500 units per batch.
Q: How is unauthorized key duplication prevented?
A: Restricted keyway profiles protected by utility patents are available. Blank keys and duplicate pins are supplied only to authorized distributors upon presentation of security authorization cards.