The Brass Cylinder Lock is a high-quality lock constructed of solid brass, designed for all types of doors, offering exceptional security and durability. Its exquisite craftsmanship and outstanding performance provide users with reliable protection and a convenient experience. The lock's operation is simple and smooth, with a two-way key design, ensuring a smooth opening and closing experience, greatly enhancing daily convenience.

Brass Cylinder Lock Parameters:

Brass Cylinder Lock Features:

1. Solid Brass

The Brass Cylinder Lock is constructed from high-quality solid brass, composed of 65%-70% copper and 30%-35% zinc. This alloy imparts exceptional mechanical properties to the lock. Solid brass boasts a tensile strength of 250-300 MPa, ensuring the lock cylinder maintains structural integrity and resists deformation or damage even under impact. Compared to traditional hollow-core locks, solid brass is 2-3 times lighter, enhancing durability and burglary resistance, making it more resistant to technical opening attempts.

2. Multiple Sizes

The lock is available in various sizes, including 60mm, 65mm, 70mm, 80mm, 90mm, 100mm, 110mm, and 120mm, to accommodate door thicknesses of varying thicknesses. Each lock cylinder size is precision-machined to an accuracy of ±0.1mm, ensuring a perfect fit between the door leaf and the lock body.

3. Bi-directional Key Operation

The Brass Cylinder Lock features bi-directional key operation, meaning the user can lock and unlock the door using a key from both the inside and outside of the door. The core of this design lies in a unique mechanism within the lock cylinder, which contains two independent sets of pins, each containing 6-8 pins, with a dimensional accuracy of ±0.05mm. When the key is inserted, the key's serrations precisely propel the pins to a specific height, thereby rotating the lock cylinder.

4. Exquisite Manufacturing Process

During the production process, the Brass Cylinder Lock cylinder is machined using high-precision CNC machine tools, achieving a precision of ±0.02mm in key areas. Multiple polishing steps are used to achieve a surface roughness of less than Ra0.2μm, resulting in a mirror-like finish. Furthermore, components such as the pins and springs within the lock cylinder are precisely adjusted, ensuring spring force stability within a ±5% tolerance, ensuring smooth key operation and cylinder durability.

5. Multiple Surface Finishes

The locks are available in a variety of finishes, including satin, mirror polish, antique bronze, matte black, and PVD, to suit diverse aesthetic preferences. For example, the mirror-polished lock cylinder boasts a reflectivity of over 85%, creating a high-end visual experience. Its smooth surface is also easy to clean and maintain; dust and stains can be removed with a gentle wipe of a soft cloth.

6. High-Security Design

The Brass Cylinder Lock features a high-security design that resists drilling, prying, and technical opening. The front of the lock cylinder features a drill-resistant protective layer made of hardened steel with a hardness of HRC35-40, effectively resisting damage from tools such as drill bits. The lock cylinder is equipped with an anti-pry device on the side. When pried by external force, the anti-pry device automatically pops out and locks the lock cylinder to prevent further operation. In terms of anti-technical opening, in addition to the complex pin-tumbler structure for two-way key operation, an anti-pull block is also installed inside the lock cylinder to ensure convenient and reliable security for users in various adverse conditions.

Brass Cylinder Lock Production Process:

1. Raw Material Selection

The production of Brass Cylinder Locks begins with rigorous raw material selection. We select high-quality solid brass bars to ensure the alloy possesses optimal mechanical and processability. Each batch of raw materials undergoes a spectrometer analysis before storage to verify its composition meets standard requirements. We also conduct hardness and tensile strength tests on the raw materials. Only materials that pass these rigorous tests are used in production.

2. Precision Casting

The lock cylinder body is formed using a precision casting process. Molten brass is poured into a high-precision graphite mold, the cavity of which is precisely machined to the designed dimensions of the lock cylinder. During the casting process, the pouring temperature is strictly controlled between 1000-1100°C and the pouring speed is maintained at 0.5-0.8 m/s to ensure a dense internal structure free of defects such as pores and shrinkage.

3. High-Precision CNC Machining

High-precision CNC machine tools are used for precision machining of key parts of the lock cylinder. During the machining process, coolant is used to cool the tool and workpiece to minimize the impact of thermal deformation on machining accuracy. Furthermore, the machine tool is equipped with an automatic tool setting device and an online inspection system, enabling real-time monitoring of tool wear and dimensional deviation, allowing for timely compensation and adjustment to ensure consistent and reliable machining quality for every product.

4. Pin Assembly and Adjustment

The assembly of the pins and springs within the lock cylinder is a critical step influencing lock performance. During assembly, specialized pin assembly equipment is used to sequentially install the pins and springs into the pin holes of the lock cylinder. Dedicated adjustment equipment is then used to precisely adjust the height of each pin set to ensure that the key smoothly raises the pins to the correct height upon insertion, enabling the lock cylinder to open.

5. Surface Treatment

The Brass Cylinder Lock offers a variety of surface treatment options to meet diverse user aesthetics and user preferences. Surface treatment processes primarily include polishing, electroplating, and PVD. The polishing process utilizes a multi-step polishing process, from rough polishing to fine polishing, using polishing wheels of varying grit sizes and polishing pastes to gradually achieve the desired gloss and smoothness on the lock cylinder surface.

6. Quality Inspection

During the final production phase of Brass Cylinder Locks, a series of rigorous quality inspections are performed to ensure that every product meets high quality standards. Inspections include visual, dimensional, functional, and safety testing. Only lock cylinders that pass all quality inspections are packaged and shipped, ensuring that customers receive superior performance and quality.

Brass Cylinder Lock Application:

1. Hotel Guest Room Doors

In hotel rooms, the Brass Cylinder Lock is an ideal choice for enhancing security and privacy. Hotel guest room doors are frequently opened and closed, requiring excellent theft protection and user-friendly operation. According to hotel industry security standards, guest room door locks must meet a security rating of Class B or higher. The Brass Cylinder Lock's dual-key operation and high-security features, including anti-drilling, anti-prying, and anti-technical opening features, fully meet this requirement.

2. Apartment Doors

Apartments are a primary location for daily living, placing high demands on the security and durability of door locks. The Brass Cylinder Lock's solid brass construction and exquisite craftsmanship ensure it withstands frequent daily use without the risk of wear or malfunction. Its multiple sizes accommodate varying apartment door thicknesses, ensuring precise installation.

3. Hospital Room Doors

Locks for hospital room doors must be durable and easy to clean, while also meeting hospital infection control requirements. The Brass Cylinder Lock's solid brass is naturally antimicrobial, and its smooth surface resists the growth of bacteria and microorganisms, making it easy to clean and disinfect. Furthermore, the lock's high-security design effectively prevents unauthorized access to patient rooms, ensuring patient privacy and safety.

Brass Cylinder Lock FAQ:

1. How compatible is the product? Can it be used with different types of doors?

The Brass Cylinder Lock is designed with compatibility in mind, making it suitable for a wide range of door types. It comes in a variety of sizes and specifications, and custom sizes are also available. This allows for precise installation on doors of varying thicknesses. Whether it's a solid wood door, a composite door, or a glass door, as long as the door's thickness falls within the applicable range, it can be precisely installed.

2. Is customization available? What is the customization process?

As a professional hardware manufacturer, we offer comprehensive customization services for the Brass Cylinder Lock to meet the specific needs of our customers. Customers can specify the lock's size, surface finish, key mark shape, and more according to their requirements. The customization process typically goes as follows: First, customers contact our sales team to clarify their customization requirements and provide detailed design drawings or specifications. Next, our design team will evaluate the customer's needs and provide a preliminary design plan and quotation within 1-2 business days. After both parties confirm the plan, they sign a customization contract and pay a deposit. Next, our production department arranges production based on the customization requirements, with a typical lead time of 15-20 business days for custom orders. Finally, the product undergoes rigorous quality inspections before being shipped to the customer. Throughout the customization process, we maintain close communication with the customer to ensure that every step meets their expectations.

3. If you encounter problems during installation, do you provide professional guidance?

We understand the importance of the installation process to the user experience of a lock, so we offer professional installation guidance. After purchasing a Brass Cylinder Lock, customers can contact us at any time through online customer service or by phone for installation guidance. Our technicians will respond within one business hour and provide detailed installation steps and operational recommendations based on the door and lock body information provided by the customer.

4. Can you provide differentiated solutions for different customer groups? 

We fully understand the diverse needs of different customer groups when using Brass Cylinder Locks, and therefore offer tailored solutions. Regardless of the customer base, our professional team and flexible service model allow us to tailor solutions to meet diverse market demands. If you have any questions, please feel free to contact us.