Built on Experience, Technology and Long-Term Commitment
From Professional Manufacturing to Reliable Global Cooperation
Since its establishment in 1998, Zhejiang Sayoon Electric Co., Ltd. has focused on the development and manufacturing of DC contactors and electrical control components. Over the years, Sayoon has continued to improve its product design, production process and quality management system to meet the needs of professional customers.
Our main products include low-voltage DC contactors, high-voltage DC contactors, magnetic latching DC contactors, pre-charging contactors, motor controllers, foot accelerators and related accessories. With continuous technical improvement and manufacturing experience, Sayoon is committed to providing reliable products, practical solutions and responsive support for customers worldwide.
Manufacturing Strength
Sayoon at a Glance
With years of focused development, Sayoon has built a reliable foundation in product development, manufacturing management and customer service. These key facts reflect our long-term commitment to professional DC contactor solutions.
1998
Over two decades of expertise
30
Proprietary innovations
3
International standards
1000
Case partner
A Manufacturing Journey Since 1998
Decades of Focused Development
Company Established
Zhejiang Sayoon Electric Co., Ltd. was founded, beginning its development in electrical control components and DC contactor manufacturing.
Manufacturing Foundation Built
Sayoon continued to improve its production process and product structure, gradually forming a stable manufacturing system for DC contactors and related components.
Product Range Expanded
With growing customer needs, Sayoon expanded its product portfolio, including low-voltage DC contactors, high-voltage DC contactors, magnetic latching DC contactors, pre-charging contactors and related accessories.
R&D and Quality Improvement
Sayoon has continued to invest in product development and quality improvement, obtaining multiple patents and strengthening its technical competitiveness.
Serving Global Customers
Today, Sayoon provides reliable DC contactor products, OEM/ODM support and technical service for customers in different professional applications worldwide.
Reliable Production for Stable Product Performance
Manufacturing Capability
Sayoon has established a structured manufacturing system covering component preparation, assembly, inspection, testing and packaging. Our production team follows standardized procedures to ensure product consistency, stable performance and reliable delivery. From standard DC contactors to customized electrical control components, Sayoon supports customers with practical manufacturing capability and flexible cooperation.
Component Preparation
Product Assembly
Process Inspection
Performance Testing
Packaging & Delivery
Every Product Tested for Reliability
Quality Control
Quality control is built into every stage of Sayoon’s production process. From incoming material inspection to finished product testing, we follow strict procedures to ensure product consistency, electrical performance and long-term reliability.
Each product is carefully inspected before shipment to help customers reduce application risks and maintain stable system performance.
Quality Process
- Incoming Material
- Component Inspection
- Assembly Control
- Final Inspection
Testing Items
- Coil performance test
- Contact resistance test
- Insulation performance
- Load performance test
Continuous Product Development for Professional Applications
Innovation Backed by Patents
Continuous innovation is an important part of Sayoon’s development. With more than 20 patents, our technical team continues to improve product structure, electrical performance and application adaptability.
Our R&D capability supports both standard product development and customized cooperation, helping customers find suitable DC contactor solutions for different project requirements.
Product structure improvement
Enhancing durability and operational efficiency.
Application-based development
Designing for specific industry requirements.
OEM/ODM technical support
Full engineering backing for custom projects.
Recognized Capability in Quality and Product Development
Certificates & Patents
Sayoon’s certificates and patents reflect our commitment to product quality, technical innovation and responsible manufacturing. These qualifications support our ability to serve professional customers with reliable products and long-term cooperation.

CE

RoHS

FCC

CCC
Flexible Customization for Project Needs
OEM & ODM Support
In addition to standard DC contactor products, Sayoon provides OEM and ODM support for customers with specific project requirements. Our technical team can assist with product selection, parameter matching, structure adjustment and customized production.
Whether customers need private label support, product adaptation or application-based development, Sayoon is ready to provide practical and flexible cooperation.
Learn More About OEM & ODMVoltage & Current Matching
Tailored to fit your exact system requirements.
Contact Structure Adjustment
Tailored to fit your exact system requirements.
Terminal Customization
Tailored to fit your exact system requirements.
Label & Packaging
Tailored to fit your exact system requirements.
Focused Product Lines for DC Power Control
Our Product Portfolio
Sayoon offers a focused range of DC contactors and electrical control components to support different power control requirements. Our product portfolio is designed around reliability, stable performance and practical application needs.
SEV Series HV DC Contactor
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HEV Series HV DC Contactor
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SZJ Series DC Contactor
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CZW Series DC Contactor
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QZJ Series DC Contactor
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SDC Series DC Contactor
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CZQ Series DC Contactor
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CZ10 Series DC Contactor
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JCC Series DC Contactor
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PCB DC Contactor
View More →Professional Support from Production to Service
People Behind Reliable Products
Behind every Sayoon product is a team dedicated to engineering, production, quality control and customer service. Our team works closely with customers to understand product requirements, support project communication and provide practical solutions throughout the cooperation process.
- R&D Team
- Production Team
- Quality Control
- Sales Support
- After-sales Service
Learn More About DC Contactors and Product Applications
Latest News & Technical Insights