10 Leading splice enclosure Suppliers in China 2025

Jan 08, 2026

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Isabella Martinez
Isabella Martinez
Isabella is a procurement specialist at Unigreat Fiber. She is in charge of sourcing high - quality raw materials for the production of fiber optic products. Her negotiation skills and supplier management ensure the smooth operation of the company's manufacturing facilities.

Introduction to Splice Enclosure

A splice enclosure is a crucial component in fiber - optic networks. It is designed to protect and organize fiber optic splices, which are the connections between two or more fiber optic cables. These enclosures safeguard the splices from environmental factors such as moisture, dust, and physical damage. They come in various types, including wall - mounted, pole - mounted, and underground enclosures, to meet different installation requirements. Splice enclosures are essential for maintaining the integrity and performance of fiber - optic communication systems, ensuring reliable data transmission over long distances.


1. Unigreat Fiber Co., Limited

Company Introduction

Unigreat Fiber Co., Limited is a well - established player in the fiber - optic industry. With years of experience, it has dedicated itself to the research, development, production, and sales of a wide range of fiber - optic products, including splice enclosures. The company is committed to providing high - quality solutions to its customers worldwide. It has a modern production base equipped with advanced manufacturing equipment and strict quality control systems. The company's R & D team continuously innovates to improve product performance and meet the evolving needs of the market.


Splice Enclosure Features

  • High - Quality Materials: Unigreat Fiber uses premium materials in the production of splice enclosures. These materials are resistant to corrosion, UV radiation, and extreme temperatures. For example, the enclosures are made of high - grade plastics or metals that can withstand harsh outdoor environments, ensuring long - term reliability.
  • Flexible Design: The splice enclosures offered by Unigreat Fiber have a modular and flexible design. They can accommodate different numbers of fiber splices, ranging from a few to hundreds. This flexibility allows customers to choose the most suitable enclosure according to their specific project requirements.
  • Easy Installation and Maintenance: The enclosures are designed for easy installation. They come with clear installation instructions and user - friendly features such as pre - drilled holes and cable management systems. Maintenance is also straightforward, with easy access to the splices for inspection and repair.


Company Advantages

  • Technical Expertise: The company has a team of highly skilled engineers and technicians with in - depth knowledge of fiber - optic technology. They can provide professional technical support to customers, helping them solve various problems related to splice enclosures.
  • Customization Capability: Unigreat Fiber can customize splice enclosures according to customers' specific requirements. Whether it's a special size, color, or functionality, the company can meet the needs, providing a personalized solution for each customer.
  • Global Reach: The company has a wide global distribution network, enabling it to supply splice enclosures to customers in different countries and regions. This global presence ensures timely delivery and excellent after - sales service.


Website

https://www.unigreatfiber.com/


2. Yangtze Optical Fibre and Cable Joint Stock Limited Company (YOFC)

Company Introduction

YOFC is one of the largest and most well - known fiber - optic companies in China. It has a long - standing history of over three decades in the industry. The company has a comprehensive production system that covers the entire fiber - optic value chain, from raw material production to the manufacturing of end - user products. YOFC has a strong R & D capability, investing heavily in research to develop new and advanced fiber - optic technologies. It has established partnerships with many international research institutions and companies, which helps it stay at the forefront of the industry.


Splice Enclosure Features

  • Advanced Sealing Technology: YOFC's splice enclosures are equipped with advanced sealing technology. The enclosures have a high - level of ingress protection, preventing water, dust, and other contaminants from entering. This is crucial for maintaining the performance of fiber splices, especially in outdoor and harsh environments.
  • Optical Performance Optimization: The company focuses on optimizing the optical performance of its splice enclosures. The internal structure of the enclosures is designed to minimize optical loss, ensuring efficient signal transmission. The enclosures are also tested rigorously to meet strict optical performance standards.
  • Large - Capacity Design: YOFC offers splice enclosures with large - capacity designs. These enclosures can accommodate a large number of fiber splices, making them suitable for large - scale fiber - optic networks, such as those used in telecommunications and data centers.


Company Advantages

  • Strong Brand Image: YOFC has a well - recognized brand in the global fiber - optic market. Its products are known for their high quality and reliability, which gives customers confidence in choosing its splice enclosures.
  • Vertical Integration: The company's vertical integration strategy allows it to control the quality of raw materials and the entire production process. This results in cost - effective production and high - quality products.
  • Comprehensive Product Portfolio: In addition to splice enclosures, YOFC offers a wide range of other fiber - optic products, such as optical fibers, cables, and connectors. This allows customers to source all their fiber - optic needs from a single supplier, providing convenience and cost - savings.


3. Hengtong Optic - Electric Co., Ltd.

Company Introduction

Hengtong Optic - Electric is a leading enterprise in the field of fiber - optic communication. It has a diversified business model that includes the production of fiber - optic products, smart grid systems, and marine cable systems. The company has a large - scale production base with advanced production lines and a high - tech R & D center. Hengtong Optic - Electric focuses on innovation and has obtained a large number of patents for its products and technologies. It also attaches great importance to environmental protection and sustainable development in its production processes.


Splice Enclosure Features

  • Eco - Friendly Materials: Hengtong Optic - Electric uses eco - friendly materials in the production of splice enclosures. These materials are recyclable and comply with environmental protection regulations. For example, some of the plastic materials used in the enclosures are biodegradable, reducing the environmental impact.
  • Intelligent Monitoring Function: Some of the company's splice enclosures are equipped with intelligent monitoring functions. These functions can monitor the temperature, humidity, and optical performance inside the enclosure in real - time. The data can be transmitted to a remote control center, allowing for timely maintenance and troubleshooting.
  • Robust Construction: The splice enclosures have a robust construction that can withstand mechanical stress. They are designed to resist impacts, vibrations, and bending, ensuring the safety of fiber splices in various installation environments.


Company Advantages

  • Diversified Business: The company's diversified business model allows it to share resources and technologies among different product lines. This can lead to cost - savings and innovation in splice enclosure production.
  • Global Marketing Network: Hengtong Optic - Electric has established a global marketing network, which enables it to quickly respond to customer needs in different regions. The company can provide local services and support, enhancing customer satisfaction.
  • Research and Development Strength: With a strong R & D team, the company can continuously introduce new and improved splice enclosure products. The R & D efforts are focused on meeting the future needs of the fiber - optic market, such as higher - density splicing and better environmental adaptability.


4. Zhongtian Technology Co., Ltd.

Company Introduction

Zhongtian Technology is a comprehensive high - tech enterprise in the field of communication and energy. It has a wide range of business segments, including fiber - optic communication, power transmission, and new energy. In the fiber - optic communication field, the company has a complete industrial chain from fiber preform production to the manufacturing of end - user products. Zhongtian Technology has a strong sense of social responsibility and is committed to promoting the development of the industry through technological innovation and cooperation.


Splice Enclosure Features

  • Multi - Layer Protection: Zhongtian Technology's splice enclosures feature multi - layer protection. They have an outer shell for physical protection and an inner layer for moisture and dust prevention. This double - layer protection ensures the long - term stability of fiber splices.
  • Compatibility: The splice enclosures are highly compatible with different types of fiber optic cables and connectors. This allows for easy integration into existing fiber - optic networks, reducing the cost and complexity of network upgrades.
  • Thermal Management: The enclosures are designed with effective thermal management systems. They can dissipate heat generated by the fiber splices, preventing overheating and ensuring the normal operation of the optical components.


Company Advantages

  • Industrial Chain Advantage: The company's complete industrial chain gives it a competitive edge in terms of cost control and product quality. It can ensure the supply of high - quality raw materials and have better control over the production process.
  • Innovation - Driven: Zhongtian Technology is an innovation - driven company. It invests a large amount of resources in R & D to develop new technologies and products. This innovation ability allows the company to quickly adapt to market changes and meet customer needs.
  • Industry Influence: The company has a significant influence in the industry. It participates in the formulation of industry standards and promotes the healthy development of the fiber - optic communication industry.


5. FiberHome Technologies Group

Company Introduction

FiberHome is a well - known high - tech enterprise focusing on information and communication technologies. It has a long - standing history of technological innovation and has made significant contributions to the development of the fiber - optic communication industry in China. The company has a strong R & D team and a large number of high - end technical talents. FiberHome is committed to providing comprehensive solutions for the information and communication industry, including network construction, equipment manufacturing, and service support.


Splice Enclosure Features

  • Advanced Splicing Management: FiberHome's splice enclosures are designed with advanced splicing management systems. These systems can accurately record and manage the splicing information, such as the location of splices and the performance parameters. This makes it easier for maintenance personnel to carry out inspections and repairs.
  • High - Density Splicing: The company offers splice enclosures with high - density splicing capabilities. They can accommodate a large number of fiber splices in a limited space, which is suitable for applications where space is limited, such as in data centers.
  • Remote Configuration: Some of the splice enclosures support remote configuration. Users can configure the enclosures through a network connection, which improves the efficiency of installation and maintenance.


Company Advantages

  • Comprehensive Solution Provider: FiberHome is not only a supplier of splice enclosures but also a comprehensive solution provider. It can provide customers with a complete set of fiber - optic network solutions, including network planning, equipment installation, and after - sales service.
  • Technological Leadership: The company is at the forefront of technological development in the fiber - optic communication field. It continuously introduces new technologies and products, leading the industry's development trend.
  • Customer - Centered Service: FiberHome attaches great importance to customer service. It has a professional customer service team that can provide timely and effective support to customers, ensuring customer satisfaction.


6. Futong Group Co., Ltd.

Company Introduction

Futong Group is a large - scale enterprise group mainly engaged in the production of fiber - optic products and related equipment. It has a long - term focus on the fiber - optic industry and has accumulated rich experience in product development and production. The company has a modern production base and a strict quality control system. Futong Group is committed to providing high - quality products and services to customers at home and abroad.


Splice Enclosure Features

  • Anti - Vibration Design: Futong Group's splice enclosures are designed with anti - vibration features. They can effectively reduce the impact of vibrations on fiber splices, which is especially important in environments where there are vibrations, such as near industrial equipment or on moving vehicles.
  • Modular Expansion: The enclosures have a modular design, which allows for easy expansion. Customers can add more splicing modules as needed, increasing the capacity of the enclosure without having to replace the entire unit.
  • Good Ventilation: The splice enclosures are designed with good ventilation systems. This helps to maintain a stable temperature and humidity inside the enclosure, preventing the growth of mold and ensuring the normal operation of fiber splices.


Company Advantages

  • Cost - Effective Products: The company can produce splice enclosures at a relatively low cost due to its large - scale production and efficient management. This allows it to offer cost - effective products to customers without sacrificing quality.
  • Quality Assurance: Futong Group has a strict quality control system that covers the entire production process. From raw material inspection to finished product testing, every step is carefully monitored to ensure the quality of the splice enclosures.
  • Industry Experience: With many years of experience in the fiber - optic industry, the company has a deep understanding of customer needs and market trends. This enables it to develop products that are more in line with market demands.


7. Tongding Group Co., Ltd.

Company Introduction

Tongding Group is a comprehensive enterprise focusing on the fields of communication, energy, and new materials. In the communication field, it is mainly engaged in the production of fiber - optic cables, splice enclosures, and other related products. The company has a strong R & D and production capacity. It continuously invests in new technologies and equipment to improve product quality and production efficiency. Tongding Group also attaches great importance to brand building and has established a good brand image in the market.


Splice Enclosure Features

  • Waterproof and Dustproof Design: Tongding Group's splice enclosures have a high - level waterproof and dustproof design. They can be used in outdoor environments with high humidity and dust levels, protecting the fiber splices from damage.
  • Cable Management System: The enclosures are equipped with a well - designed cable management system. This system helps to organize the fiber optic cables neatly, reducing the risk of cable tangling and damage.
  • Quick Installation: The splice enclosures are designed for quick installation. They have a simple and straightforward installation process, which can save time and labor costs during the installation of fiber - optic networks.


Company Advantages

  • Diversified Product Portfolio: In addition to splice enclosures, Tongding Group offers a wide range of other communication products. This allows customers to purchase multiple products from a single supplier, providing convenience and cost - savings.
  • Production Efficiency: The company has a high - efficiency production system. It can quickly produce and deliver splice enclosures to meet customer needs, especially in urgent situations.
  • Brand Reputation: Tongding Group has a good brand reputation in the market. Its products are trusted by customers for their quality and reliability, which gives the company a competitive advantage.


8. Jiangsu Zhongtian Technology Co., Ltd.

Company Introduction

Jiangsu Zhongtian Technology is a high - tech enterprise specializing in the research, development, production, and sales of fiber - optic products. It has a state - of - the - art production base and a professional R & D team. The company is committed to technological innovation and product quality improvement. It has established long - term cooperative relationships with many domestic and foreign research institutions and universities to promote the development of the fiber - optic industry.


Splice Enclosure Features

  • High - Precision Manufacturing: The splice enclosures are manufactured with high precision. The dimensions and tolerances of the enclosures are strictly controlled, ensuring a perfect fit for the fiber optic cables and connectors.
  • Anti - Corrosion Treatment: The enclosures undergo anti - corrosion treatment. This makes them suitable for use in corrosive environments, such as coastal areas or industrial zones, and extends the service life of the enclosures.
  • Multiple Installation Options: Jiangsu Zhongtian Technology's splice enclosures offer multiple installation options, including wall - mounted, pole - mounted, and underground installation. This flexibility allows customers to choose the most appropriate installation method according to their specific project requirements.


Company Advantages

  • Technological Innovation: The company is at the forefront of technological innovation in the fiber - optic field. It continuously introduces new manufacturing processes and materials to improve the performance of its splice enclosures.
  • Quality Control: Jiangsu Zhongtian Technology has a strict quality control system. Every splice enclosure is tested before leaving the factory to ensure that it meets the highest quality standards.
  • Customer - Oriented Service: The company takes a customer - oriented approach. It provides personalized service to customers, including product customization, technical support, and after - sales service.


9. Shenzhen Sun Telecom Co., Ltd.

Company Introduction

Shenzhen Sun Telecom is a professional manufacturer of fiber - optic communication products. It has a strong focus on R & D and innovation, aiming to provide high - performance fiber - optic solutions to customers. The company has a modern production facility and a team of experienced engineers and technicians. It is constantly exploring new markets and expanding its business scope.


Splice Enclosure Features

  • Lightweight Design: Shenzhen Sun Telecom's splice enclosures have a lightweight design. This makes them easy to carry and install, especially in situations where manual labor is involved in the installation process.
  • High - Performance Sealing: The enclosures are equipped with high - performance sealing materials. They can effectively prevent water, dust, and air from entering the enclosure, protecting the fiber splices from environmental damage.
  • Ergonomic Design: The enclosures are designed with ergonomics in mind. They have easy - to - use features, such as smooth opening and closing mechanisms, which make it convenient for maintenance personnel to access the splices.


Company Advantages

  • Innovation Ability: The company has a strong innovation ability. It can quickly respond to market changes and develop new products to meet the emerging needs of customers.
  • Competitive Pricing: Shenzhen Sun Telecom can offer competitive pricing for its splice enclosures. This is due to its efficient production process and cost - control measures, which make its products more attractive to customers.
  • International Market Penetration: The company has successfully penetrated the international market. It exports its splice enclosures to many countries and regions around the world, which shows the high quality and competitiveness of its products.


10. Shanghai Etern Communications Equipment Co., Ltd.

Company Introduction

Shanghai Etern Communications Equipment is a specialized company in the production of communication equipment, including splice enclosures. It has a long - standing history in the industry and has accumulated rich experience in product design and manufacturing. The company has a complete production line and a strict quality management system. It is committed to providing high - quality and reliable communication products to customers.


Splice Enclosure Features

  • Stable Performance: The splice enclosures produced by Shanghai Etern Communications Equipment have stable performance. They can maintain good optical performance under different environmental conditions, ensuring the reliable transmission of optical signals.
  • Fire - Retardant Design: Some of the enclosures have a fire - retardant design. This is an important safety feature, especially in indoor applications or areas with high fire risks.
  • Easy Cable Entry and Exit: The enclosures are designed with easy cable entry and exit points. This simplifies the cable installation process and reduces the time and effort required for network deployment.


Company Advantages

  • Quality - First Principle: The company adheres to the quality - first principle. It strictly controls the quality of raw materials and the production process to ensure that every splice enclosure meets the highest quality standards.
  • After - Sales Service: Shanghai Etern Communications Equipment provides excellent after - sales service. It has a professional after - sales team that can quickly respond to customer inquiries and solve problems.
  • Industry Reputation: The company has a good industry reputation. Its products are widely recognized by customers for their quality and performance, which gives it a competitive edge in the market.


Conclusion

The fiber - optic communication industry in China is booming, and splice enclosures play a vital role in ensuring the reliable operation of fiber - optic networks. The 10 leading suppliers introduced in this article, including Unigreat Fiber Co., Limited, Yangtze Optical Fibre and Cable Joint Stock Limited Company, and others, have their own unique advantages and features in the production of splice enclosures.


These companies vary in terms of their product features, such as high - quality materials, advanced sealing technology, and intelligent monitoring functions. Their advantages also cover different aspects, including technical expertise, customization capabilities, global reach, and cost - effectiveness. Whether it's a large - scale fiber - optic network project for telecommunications or a small - scale installation for data centers, these suppliers can provide suitable splice enclosure solutions.


As the demand for high - speed and reliable fiber - optic communication continues to grow, these leading suppliers are expected to keep innovating and improving their products to meet the future challenges and opportunities in the market. They will continue to drive the development of the fiber - optic communication industry in China and contribute to the global expansion of fiber - optic networks.


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