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Comparison and selection guide of the difference between one and two section hinges

As the basic component of connection and motion transformation, hinges play an indispensable role in our daily life and in the industrial field. From the opening and closing of doors and Windows to the operation of complex mechanical devices, the functions and applications of hinges are extremely wide.

Among the many types of hinges, the first and second section hinges have received a lot of attention because of their unique structures and application fields. This article aims to explore the differences between these two hinges in depth, to help readers better understand their characteristics and make appropriate choices according to specific needs.

Single hinge

A section of hinge, as a connection and support door, window, cover and other components and their fixed frame of the basic mechanical components, its design is exquisite and practical, is widely used in furniture, electronic products, industrial equipment and other fields. A piece of hinge, through its single axis of rotation, enables the smooth opening and closing of a door or window, and is the simplest and most direct way to achieve this basic action.

Definition and structure

A section of hinge usually consists of two main parts: a blade fixed to the door or cover and a blade fixed to the frame, which are connected by a central pin. This structural design allows the blades to rotate relative to each other in a plane, enabling the action of opening and closing. Because of its simple structure, a piece of hinge is easy to produce and install, but also easy to maintain.


  • Simplicity: The design of a piece of hinge is simple, without complex mechanical structure, so it is relatively more economical in the manufacturing and use process.
  • Easy installation: Due to the directness of the structure, the installation process of a section of hinges is simple and quick, and does not require special tools or complex steps.
  • Wide applicability: Because of its reliability and economy, this hinge is suitable for a variety of light to medium load opening and closing needs, such as household furniture doors, cabinet doors, etc.


The application of a section of hinges is very wide, from doors and Windows in the family to office furniture, and then to some types of mechanical equipment, you can see its figure. In light duty applications, such as cabinet doors and lightweight storage box covers, a section of hinge provides stable and reliable performance. It is also commonly used in some doors that need to be opened and closed frequently, and because of its simple structure, it is relatively easy to maintain and replace.

Analysis of advantages and disadvantages


  • Cost effective: The simple design and manufacturing process makes a piece of hinge less costly and suitable for mass production and use.
  • Simple maintenance: Due to the simple structure, the maintenance and replacement of a section of hinges is relatively easy and does not require professional technical support.
  • High reliability: Fewer moving parts mean lower failure rates, and a single hinge provides long-term reliability in most applications.


  • Limited opening Angle: Compared to some advanced hinges, the opening Angle of a section of hinges is limited and may not be suitable for applications requiring a large opening Angle.
  • Limited load-bearing capacity: For heavier doors or covers, a section of hinges may not provide sufficient support, which limits its scope of application to some extent.

Double hinge

The two-section hinge, as a more complex mechanical connection, consists of two sets of hinged parts, which allows it to provide greater flexibility and opening Angle when opening and closing the door or cover. Compared with a single hinge, the design of the two-stage hinge allows the door or cover to perform more complex movements when opened, such as moving outward before rotating open, which makes the two-stage hinge particularly suitable for applications where space is limited or a larger opening Angle is required.

Definition and structure

A two-stage hinge consists of two hinged shafts that enable the door or cover to perform two different movements – usually a sliding (or translating) section and a rotating section. This structure not only increases the flexibility when opening and closing, but also improves the stability of the door or cover when it is open. This unique design of the two-stage hinge makes it significantly different from the first-stage hinge in terms of function and application.


  • High flexibility: The two-section hinge provides a larger opening Angle through its dual motion mechanism, making the door or cover more accessible.
  • Strong space adaptability: For space-limited application scenarios, such as kitchen cabinets and bathroom cabinets, two-section hinges can effectively solve the problem of space required for opening doors.
  • Good stability: In the open state, the two-section hinge provides better support and stability, especially for larger or heavier doors.


Because of its unique functional advantages, two-stage hinges are widely used in areas requiring large opening angles and high stability, such as high-end cabinets in the furniture industry and certain industrial applications. In some specially designed furniture, the use of a two-section hinge allows the door to be completely parallel to the side of the furniture, thus providing a completely open line of sight and access path for no barriers.

Analysis of advantages and disadvantages


  • Provide large opening Angle: can realize the door or cover fully open, easy access to items, especially suitable for kitchen and office furniture.
  • Optimized space usage: With its unique opening mechanism, the two-section hinge provides a better solution in space-constrained environments.
  • Strong stability and support: For heavier doors, two-section hinges provide additional stability and support.


  • Higher cost: Compared to the first hinge, the design and manufacture of the second hinge is more complex, so the cost is relatively high.
  • More complex installation and adjustment: The installation and adjustment of the two-stage hinge requires more precise operation and may require professional technical support.
  • Higher maintenance requirements: Due to the more complex structure, two-stage hinges may require more frequent maintenance and adjustment during long-term use.

Comparison of one and two section hinges

When discussing the difference between a first and a second hinge, we need to compare it from several key perspectives: structural complexity, functionality, durability and maintenance, as well as price and value for money. These factors together determine the applicability and user preferences of the two hinges in different application scenarios.

Structural comparison

  • A section of hinge: Having a relatively simple construction, usually consisting of two parts connected by a fixed shaft, allowing the door or cover to be opened by rotating in a single direction.
  • Two-stage hinge: The structure is more complex, consisting of two sets of hinged parts, so that the door or cover can perform a double action of first translation and then rotation, providing greater opening Angle and space utilization.

Functional comparison

  • Opening Angle and space utilization: Because of its unique design, the two-section hinge can provide a larger opening Angle in the case of space constraints, while the one-section hinge is suitable for ordinary doors and Windows with low opening Angle requirements.
  • Stability and support: The dual mechanism of the two-section hinge also means that it provides better support and stability in the open state, especially for heavier doors or covers.

Durability and maintenance

  • Durability: A piece of hinge usually has better durability because of its simple structure and few points of failure. Although the design of the two-stage hinge is complex, it can also achieve high durability under the selection of the right material and manufacturing process.
  • Maintenance requirements: The maintenance of a section of hinges is relatively simple, because the structure is simple, easy to diagnose and repair when there is a problem. Because of its complexity, the two-stage hinge may require more professional maintenance and adjustment.

Price and cost performance

  • Price: The cost of a piece of hinge is relatively low, mainly due to the simplicity of its production and installation process. Because of the complex structure and higher manufacturing cost, the two-stage hinge has a relatively high price in the market.
  • Cost performance: Which type of hinge to choose depends on the specific application needs. For applications that require a large opening Angle and high stability, investing in a two-stage hinge may bring higher value. For standard opening and closing requirements, a section of hinge provides a very high cost performance due to its economic practicality.

In conclusion

This article delves into the main differences between one – and two-stage hinges, including their structural differences, functionality, durability and maintenance needs, as well as price and value for money. The first hinge is suitable for standard opening and closing requirements due to its simplicity, cost effectiveness and ease of maintenance, while the second hinge is suitable for special applications requiring a large opening Angle and high stability due to its complex design that provides a larger opening Angle and optimized space utilization. Choosing the right hinge type is based on the specific needs of the application, such as opening Angle, space layout requirements, and budget. At the same time, as technology advances, the emergence of new hinge designs and materials may provide better performance and value for the project, so users are advised to work with professionals to understand the latest product information. To sum up, understanding the characteristics and application scenarios of the two hinges can help users make informed choices according to project requirements.