Welcome To Romtronic

Professional Cable Assembly & Wire Harness Manufacturer

Innovative leader in custom cable assembly and wire harness manufacturing.


Our Company

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Romtronic is a Reliable manufacturer of custom cable assembly and wire harnesses in China. We can provide OEM and ODM services.

Our custom cable assemblies and wire harnesses are sold in over 80 countries, such as the United States, Germany, Japan, the UK, etc. Thanks to our high-quality standards and service, we have succeeded in establishing long-term relationships with many customers in the market. We have agents in Europe & USA, we cooperate to develop European, and North American markets together.

If you need any custom services for cable assembly&wire Harness, please call us. Our team will be here for you seven days a week.

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Our Products

As a specialist in custom cable assembly & wire harnesses, we’re your first choice for cable assemblies and wire harnesses across a spectrum of commercial and industrial sectors. Our products are as follows: DisplayPort, LVDS, USB, HDMI, DVI, SATA, IEEE 1394, RCA, RS232, VGA and a variety of other cable configurations customized for automotive, trailers, medical devices, appliances, robotics, and heavy-duty industrial machinery.

Our Certifications And Qualifications

Our leaders and workforce are dedicated to providing top-quality products and services. We have passed the audit report of ISO9001, ISO14001, ISO45001, ISO13485, IATF16949, UL, MFi, and CE certifications etc. Our company always strives to maintain the highest quality standards, customer support and service in our industry.

Why Choose Us?


The capacity of custom production

With 27 years of OEM/ODM production experience, Our factory cooperates with some of the world’s top brands just as Philips, Siemens, Mettler Toledo, Bosch, Samsung, RAFI, TE, Amphenol, etc.



Accept small quantity orders

We accept small quantity custom orders for various cable assemblies and wire harnesses. The minimum order is 100 pieces or the total value of the order is more than USD 300$.


Conformity and delivery rate 100%

All our products are strictly tested to ensure 300% inspection and zero defects. We guarantee 100% on-time delivery and have signed a late penalty agreement.


Operational Flexibility

Our flexible operations cater to all business styles, allowing us to meet the diverse needs of our customers.


Professional Sales Team

We have 17 salesmen, most of them have over 10 years of experience serving OEM and ODM customers in the global cabling industry. You’ll find it easy and comfortable to work with us.


Service Response

We offer 24/7 online service and respond to your inquiries within 12 hours. Whether you need help with drawings, samples, orders, or any other engineering issues, we’ve got you covered.


Professional Engineering Team

Our engineering team, equipped with CAD and Pro-E drawings capabilities, offers end-to-end support from concept to drawing to wiring to final mechanical assembly.


Automation Equipment

Our factory is equipped with a variety of automated production equipment, including terminal machines, soldering machines, laser wire stripping machines, automatic production lines, etc.


Independent Laboratory

Our factory has a lab with a wide range of testing equipment, including a TDR network analyzer, salt spray tester, cable bending tester, tensile tester, LCR tester, etc.

What Our Customer Say

Romtronic really shocked me! They can provide small quantities of mechanical equipment wiring harnesses for 25% of what my local wiring harness manufacturer charges, and they shipped it super fast.
Mr. Daniel
Mr. Daniel
From Italy
My client was excited ! He remarked, "Assembling the harness was just a piece of cake, and it comes with everything you need, including extra fuses. In addition, the connectors are top-notch and high temperature resistance!"
Ms. Geneviève​
Ms. Geneviève
From U.K
Our communication during the production process was awsome, and the cable assembly prototype was flawless. It offers a reasonable price and totally meet our requirements.
J. K han
J. K han
From South Korea

Contact Us

Feel free to reach out by filling out the form to request a quote for cable assemblies or wire harnesses, or to schedule a factory tour. You can also explore our company through a live video tour at your convenience!

Our Office Area

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