Nanjing Duotai Smart Technology Co., Ltd. | Electronic Locks & Fireproof Safes Manufacturer

About Nanjing Duotai

Nanjing Duotai Smart Technology Co., Ltd. is a leading designer and manufacturer of electronic locks, mechanical locks, gun safe cabinets, safe boxes, and a full series of secure storage products. Founded in 2001 by Du Xinjun, we specialize in safety protection solutions for homes, businesses, military, banks, and public institutions.

In 2011, we expanded operations by establishing Nanjing Robust Electronic Technology Co., Ltd., enhancing production standardization and R&D capabilities. Our facility is ISO9001:2015 certified, ensuring consistent quality and innovation.

2001

Founded

15+

Years R&D Experience

ISO9001

Certified

R&D Capability

All our products are developed in-house with dedicated R&D models. Our research team brings over 15 years of experience in intelligent locks, safe boxes, and gun cabinet systems. We continuously innovate based on global customer feedback and evolving security needs.

In-house design & engineering
Patented lock mechanisms
Customizable solutions
Feedback-driven development

Production & Quality

Duotai maintains top-tier global standards in manufacturing. To ensure excellence, we limit monthly production volumes and conduct rigorous quality checks. Every product meets industry standards and is backed by strong warranty and customer support.

ISO9001:2015 Certified
Limited batch production
Fire-resistant materials
Global distribution network

Our Featured Products

From fireproof gun safes to electronic hotel locks, our product line delivers reliability, durability, and intelligent design for homes, offices, and institutions.

DT-Long Gun Fire Resistant Gun Safe

Double-wall fireproof construction, ideal for long firearms. High-security electronic lock with emergency override.

Robust-C1 Safe Box With Electronic Lock

Compact office safe with digital keypad, anti-theft bolts, and internal shelf. Suitable for documents and valuables.

Robust-H Large Office Safe Box

High-capacity fireproof safe with dual electronic locks, adjustable shelves, and anchor base.

SB Series Tool Cabinet

Heavy-duty steel cabinet with locking drawers, ideal for workshops and industrial environments.

DT Flat Safe Box

Slim-profile wall safe with electronic lock, perfect for hidden home storage and hotel use.

DT-YLJ008 Fireproof Gun Safe Cabinet

Fire-resistant double-door cabinet with biometric fingerprint access and interior lighting.

Duotai Fireproof Gun Safe DT-71016

Medium-sized fireproof cabinet with electronic lock, foam-lined interior, and anti-tip design.

Robust-B Office Safe Box

Deposit-style safe with drop slot and electronic lock. Ideal for retail and cash handling.

View All Products

Why Choose Duotai?

Engineered for security, durability, and peace of mind.

Military-Grade Security

Our safes and locks meet international standards for tamper resistance and forced entry protection.

Fireproof Protection

Up to 2 hours of fire resistance at 1700°F. Keeps documents and media safe in emergencies.

Smart Lock Technology

Electronic, keypad, and biometric options with low-battery alerts and audit trails.

Global Support

Distributed in over 50 countries with multilingual customer service and warranty support.

Frequently Asked Questions

Are Duotai safes fireproof?

Yes, our fireproof safes are tested to withstand temperatures up to 1700°F for 1-2 hours, protecting documents, media, and valuables.

Do you offer biometric locks?

Yes, we manufacture biometric fingerprint locks for gun cabinets, office safes, and home storage units.

Can I customize the size or lock type?

Yes, we offer OEM/ODM services with customizable dimensions, finishes, and locking mechanisms.

Is installation support available?

We provide detailed manuals and video guides. For enterprise clients, remote support is available.

What is your warranty policy?

We offer competitive warranty support on all products, including locks and fireproofing integrity.

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