China's leading manufacturer of high-end connectors
Rugged. Precise. Customized.
Connecting Your Innovation.
Rugged. Precise. Customized.
Founded in 2010, Yolong Connectors has evolved into a leading manufacturer of high-performance industrial connectivity solutions. We specialize in the design, vertical manufacture, and deployment of ruggedized interconnects for mission-critical sectors, including Aerospace & Defence, Robotics, Medical, Industrial Automation, and 5G Communications.
Backed by a fully vertically integrated supply chain—from precision mold making to automated assembly—and ISO9001/IATF16949 certifications, YoLong delivers superior connectivity solutions ranging from Mil-Spec and M-Series connectors to custom cable assemblies, empowering innovation in the world’s most demanding markets.
- 16+ Years Professional Service
- 30+ Cooperated Countries
- 2000+ Happy Customers
- 10000+ High-quality Products


Certifications
Latest News

IP67 vs IP68 vs IP69K Connectors: What’s the Difference and Which One Do You Need?
IP67, IP68, and IP69K are the three most common ingress

Heavy Duty Connector Selection Guide: Types, Configurations, and How to Choose
When a standard M12 or circular connector isn’t enough —

M8 vs M12 Connector: How to Choose the Right One for Your Application
M8 and M12 are the two most common circular connectors

M12 Connector Coding Guide: A, B, D, X, S, T and More Explained
If you’ve ever ordered an M12 connector and received something
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