Description
Product Overview
The AVIMYA Turn Tongue Lock CH751 is engineered as a high‑performance deadbolt that meets the rigorous demands of modern elevator systems and commercial door applications. Its compact form factor, measuring just 1.18 x 0.79 x 0.39 inches, allows seamless integration into tight mechanical housings without compromising security. Designed with a modern aesthetic, the lock blends unobtrusively into a variety of interior styles while delivering the robust protection required for high‑traffic environments.
Crafted from hardened steel alloy, the lock body resists corrosion, wear, and forced entry attempts. The internal cylinder utilizes precision‑machined components that provide smooth key rotation and long‑lasting reliability. Each unit undergoes a strict quality‑control process that includes dimensional verification, torque testing, and functional validation to ensure consistent performance across the entire production batch.
Technical specifications include a hand‑controlled key switch mechanism, a weight of only 30 grams, and a one‑piece construction that eliminates the need for additional fasteners or brackets. The lock operates on a standard key profile, making it compatible with existing key management systems while offering the flexibility to rekey for enhanced security protocols.
Installation is straightforward: the lock can be mounted directly onto the elevator shaft or door frame using the pre‑drilled mounting holes provided in the package. Detailed step‑by‑step instructions are included, and the design accommodates both new installations and retrofit projects, reducing downtime and labor costs for facility managers.
Beyond its core functionality, the CH751 model incorporates a patented anti‑tamper feature that prevents unauthorized disassembly. This added layer of protection is especially valuable in high‑rise buildings where elevator access must be tightly controlled to safeguard passengers and equipment.
Usage
Ideal for commercial elevators, service lifts, and secure access doors in office complexes, hotels, and hospitals, the Turn Tongue Lock delivers dependable performance under continuous operation. Its compact size makes it suitable for both new construction and retrofitting older elevator cabins where space constraints are a primary concern.
The lock is designed for use by building managers, security personnel, and maintenance technicians who require a reliable, low‑maintenance solution. Its hand‑controlled key switch provides tactile feedback, ensuring that users can quickly verify lock engagement without the need for electronic diagnostics.
Routine maintenance involves periodic lubrication of the key cylinder and visual inspection of the mounting hardware. Because the lock is constructed from corrosion‑resistant materials, it typically requires only an annual check to confirm optimal performance, making it a cost‑effective choice for long‑term facility management.
In environments where temperature fluctuations and humidity are common, the lock’s sealed design protects internal components from moisture ingress, preserving functionality even in harsh conditions. This resilience makes it a preferred option for elevators serving outdoor or semi‑outdoor locations.

Why Choose Us
AVIMYA’s commitment to quality is reflected in every aspect of the Turn Tongue Lock. From raw material selection to final assembly, each step is guided by industry‑leading standards and a dedication to durability. Our manufacturing facilities employ advanced CNC machining and automated testing rigs to guarantee dimensional accuracy and functional reliability.
Reliability is further reinforced by our extensive field testing program, which subjects each lock to simulated elevator cycles, vibration, and impact scenarios. This rigorous validation ensures that the lock will perform consistently throughout its service life, reducing the risk of unexpected failures that could disrupt building operations.
Customer support is a cornerstone of the AVIMYA experience. Our technical assistance team is available 24/7 to answer installation questions, provide troubleshooting guidance, and supply replacement parts when needed. We also offer a comprehensive warranty that covers manufacturing defects for a full two years, giving our clients peace of mind.
Choosing AVIMYA means partnering with a brand that values transparency, sustainability, and continuous improvement. Our products are designed to meet or exceed relevant safety codes, and we regularly update our designs based on feedback from architects, engineers, and end‑users.
Key Features
- Compact dimensions allow installation in space‑constrained elevator shafts without sacrificing security.
- Hardened steel alloy construction provides superior resistance to corrosion and forced entry.
- Hand‑controlled key switch offers tactile feedback and easy verification of lock engagement.
- Patented anti‑tamper design prevents unauthorized disassembly, enhancing overall safety.
- 24/7 technical support and a two‑year warranty ensure reliable after‑sales service.
FAQ
What type of key does the Turn Tongue Lock use?
The lock uses a standard cylindrical key that can be rekeyed to match existing security systems, allowing seamless integration with current access control protocols.
Can the lock be retrofitted into existing elevator doors?
Yes, the CH751 model is designed for both new installations and retrofits. Its mounting holes align with common elevator door specifications, and the compact size minimizes the need for structural modifications.
Is the lock suitable for outdoor elevator applications?
The lock’s sealed housing protects internal components from moisture and temperature extremes, making it appropriate for outdoor or semi‑outdoor elevator installations where exposure to the elements is a concern.
How often should the lock be serviced?
We recommend an annual visual inspection and lubrication of the key cylinder. Because the lock is built from corrosion‑resistant materials, routine maintenance is minimal, helping to keep operating costs low.
What warranty coverage does AVIMYA provide?
AVIMYA offers a two‑year warranty that covers any manufacturing defects. Should a defect arise, our support team will arrange repair or replacement at no additional cost to the customer.




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