Wire Harness
Passenger, Commercial, EV, New Energy, Elevator & Custom Harnesses.
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Product category
Connectors
Automotive, Heavy-Duty & Circular Connectors, Terminals, Custom Connectors, etc.
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Auto Parts
Automotive circuit breakers, plastic structural parts, busbars & custom components.
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Busbars
Automotive busbars cover conductive copper bars, insulation cladding, connector terminals, sealing and fixing accessories.
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About Us
Cymanu was founded in 2016, specializing in the R&D and production of cable assemblies and connectors for automotive, elevator and new energy industries.
We have a professional workforce and complete production layout, covering precision mold making, injection molding, stamping and assembly workshops, alongside a well-equipped testing lab and modern production equipment. Our company holds IATF16949, ISO9001, ISO14001, ISO45001 and UL certifications. With extensive experience in customized cable assemblies and connectors, we can fully meet your requirements.
We strive to become a trusted leading manufacturer of vehicle wiring harnesses and connectors for global customers.
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Innovation and Quality
Cymanu is driven by talent introduction and technological innovation, we are committed to R&D and have well-equipped, standardized professional laboratories. We continuously invest in the independent development of new molds and customized production to enrich and optimize our product portfolio. We hold a number of invention patents and utility model patents.
At the same time, we flexibly upgrade our production and testing equipment according to customers' individualized needs and evolution of industry. Through iterative upgrades in technology and hardware, we ensure consistent product quality.
Global Partners
Through years of teamwork and large-scale lean production, Cymanu delivers high-quality products and services to customers worldwide, establishing stable strategic partnerships with numerous international clients.
As the AI era unfolds, new approaches and emerging players keep appearing.We will keep pace with the times and pursue continuous innovation and improvement. Cymanu remains your reliable partner and trusted ally. Our sales network keeps expanding, and we sincerely welcome global customers to discuss cooperation with us.
Applications
We serve not only the ten core sectors, but also provide products and services for a wide range of other industries.
Automotive
Internal combustion vehicles rely on various wiring harnesses and connectors to build the whole-vehicle electrical transmission network, ensuring stable power supply and communication for power, control, lighting and other systems.
Electric Vehicle
Electric vehicles rely on high-voltage and low-voltage wiring harnesses and matching connectors to realize vehicle-wide power transmission and signal interaction, serving as core connecting carriers for the coordinated operation of batteries, electronic controls and motors.
Industry Engineering
Industrial engineering improves the production efficiency and quality of wiring harnesses and connectors while cutting manufacturing costs through standardized processes, workshop layout and process optimization.
Rail Transit
Rail transit vehicles adopt high and low temperature resistant, high-protection wiring harnesses and connectors to realize vehicle power transmission and signal control, ensuring long-term safe and stable operation of trains.
Energy and Power Engineering
Energy and power engineering uses high-voltage resistant, well-insulated wiring harnesses and connectors for power transmission and equipment signal connection to guarantee reliable operation of wind power, photovoltaic and power transmission & distribution systems.
Ventilation Equipment
Ventilation equipment connects motors and control components via waterproof and temperature-resistant wiring harnesses and connectors to realize stable power supply and operation signal transmission for fans.
Ships and Yachts
Ships and yachts adopt waterproof, anti-corrosion and high salt spray resistant wiring harnesses and connectors to build on-board electrical circuits and ensure continuous and reliable operation of various marine electrical equipment during navigation.
Electronics and Electrical
The electronic and electrical industry takes wiring harnesses and connectors as basic interconnection components to realize power delivery and signal transmission between various electrical and electronic components.
Smart Home
Smart homes connect various smart sensors and home appliances via miniaturized and convenient wiring harnesses and connectors to realize whole-house power supply and intelligent signal intercommunication.
Photovoltaic and Energy Storage
Photovoltaic and energy storage systems rely on weather-resistant high-voltage wiring harnesses and special connectors to realize series-parallel connection of modules and power transmission of energy storage units, ensuring safe and efficient operation of new energy storage systems.
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Automotive
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Electric Vehicle
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Industry Engineering
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Rail Transit
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Energy and Power Engineering
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Ventilation Equipment
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Ships and Yachts
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Electronics and Electrical
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Smart Home
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Photovoltaic and Energy Storage
News Center
25
2026-09Application Scenarios & Market Trends of Heavy-Duty Connectors
As the global Industry 4.0, energy storage, and electrification industries advance rapidly, the heavy-duty connector market continues to grow. Modularization, hybrid power + signal integration, and miniaturized high-density design have become the three major mainstream technology trends.
Invisible Hidden Hazards, Visible Protection — How Adhesive-Lined Heat Shrink Tubing Protects the "Lifeblood" of Wire Harnesses
For a high-quality wiring harness, from material selection to craftsmanship, every layer of protection directly determines the stability and safety of the entire system's operation.
22
2026-09
08
2026-08Exhibition Preview | Cymanu Electronics Invites You to electronica 2026 in Munich, Germany (Booth: Hall 3, Stand 173)
The exhibition will take place from November 10th to 13th, 2026 in Munich, Germany. Our booth is Hall 3 / Stand 173.
VDE Technical Seminar on Aluminum Conductor Terminals & Connectors for Energy Storage Systems
The technical team of Ningbo Changyu Electronic Manufacturing Co., Ltd. was invited to attend the conference, joining industry experts to engage in in-depth exchanges on energy storage connectors, VDE standards for aluminum conductor terminal blocks, product testing, and reliability, while jointly discussing the technical challenges of energy storage connectors.
05
2025-06