Nanjing Duotai Smart Technology Co., Ltd.
| Material | Metal |
| Installation Type | Surface Mount |
| Type | Key Lock |
| Key Type | Mechanical |
| Color | Silver |
| Place of Origin | China |
| Brand Name | Duotai |
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Product Specification
| Material | Metal | Installation Type | Surface Mount |
| Type | Key Lock | Key Type | Mechanical |
| Color | Silver | Place of Origin | China |
| Brand Name | Duotai | ||
| High Light | High Security Mechanical Safe Lock ，Mechanical Safe Lock Anti Interference ，Portable Safes Security Mechanical Lock | ||
Lock Cylinder
Types: Common types include pin tumbler locks (controlled by pin arrangements) and wafer tumbler locks (using wafer angles to match keys). High-security models may use sidebar locks or magnetic locks.
Materials: Brass or stainless steel; premium cylinders may incorporate anti-drill ceramic plates.
Lock Bolt
Design: Straight bolt, hook bolt, or rolling bolt, some with anti-saw hardening treatments.
Keyhole
Protection: Dust covers, anti-pry plates, or non-standard shapes (e.g., cross, crescent) to prevent tool insertion.
Auxiliary Structures
Spring System: Ensures automatic bolt resetting, requiring corrosion-resistant materials.
Lock Housing: Made of cast steel or alloy, often reinforced with anti-drill steel plates.
Key Matching
The unique teeth or magnetic points on the key align precisely with the internal structure (pins, wafers) of the lock cylinder to release the lock.
Mechanical Transmission
Key rotation drives a transmission rod inside the cylinder, retracting the bolt. Some designs use multi-stage transmission for enhanced complexity.
Security Mechanisms
Anti-Picking Features: False pins, labyrinth grooves, etc., to resist lockpicking.
Self-Locking Mechanism: Triggers a lockout after repeated incorrect attempts to prevent brute-force attacks.
Advantages
Passive Reliability: No power required; suitable for extreme temperatures or humidity (e.g., basements, outdoor use).
Anti-Interference: Immune to electromagnetic pulses or signal disruptions, ideal for high-security backup systems.
Quick Access: Instant operation without system delays, critical in emergencies.
Disadvantages
Physical Vulnerability: Low-end locks are prone to drilling/sawing; require reinforced housings.
Key Management Risks: Traditional keys are easily copied; high-security keys (e.g., laser-engraved, bidirectional magnetic) need authorized duplication, increasing costs.
Limited Functionality: Lacks remote monitoring or usage logs, relying solely on physical security.
Home Safes: As primary or backup locks alongside electronic systems.
Small Businesses: Secure storage for documents or cash in environments without stable power.
High-Security Facilities: Redundant locks in bank vaults or museums, often integrated with electronic systems.
Portable Safes: Lightweight yet tamper-resistant designs for travel or temporary storage.
Routine Maintenance
Cleaning: Use compressed air to clear keyhole dust quarterly; clean keys with alcohol-dipped cotton swabs.
Lubrication: Apply graphite powder or specialized lubricant; avoid grease to prevent debris buildup.
Troubleshooting
Key Insertion Issues: Check for bent keys or foreign objects in the keyhole.
Bolt Jamming: Adjust bolt screws or inspect spring elasticity.
Emergency Measures
Lost Key: Contact the manufacturer for cylinder replacement (proof of ownership required).
Tampering Signs: Report to authorities immediately and verify asset security.
Company Details
Business Type:
Manufacturer,Seller
Year Established:
2001
Total Annual:
5000000-7000000
Employee Number:
100~120
Ecer Certification：
Active Member
Nanjing Duotai Smart Technology Co., Ltd., established in 2001 and headquartered in Nanjing City, Jiangsu Province, is a leading designer and manufacturer of electronic locks, mechanical locks, gun safe cabinets, safe boxes, tool cabinets, and a wide range of security products. With over 20 years of... Nanjing Duotai Smart Technology Co., Ltd., established in 2001 and headquartered in Nanjing City, Jiangsu Province, is a leading designer and manufacturer of electronic locks, mechanical locks, gun safe cabinets, safe boxes, tool cabinets, and a wide range of security products. With over 20 years of...
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