Welcome To Romtronic

Custom Cable Assembly & Wire Harness Manufacturer

High-Reliability Interconnect Solutions for Mission-Critical Applications.

HMLV Specialist | 300% Inspection | 5-15 Day Samples | In-House Lab

Official logo of Romtronic, a premier manufacturer of high-precision wire harnesses, medical cables, and industrial interconnect solutions

Our Company

Romtronic is a premier China-based wire harness and cable assembly manufacturer dedicated to providing high-performance interconnect solutions for OEM and ODM customers worldwide. Since 1997, we have combined engineering innovation with rigorous quality control to meet the most demanding technical requirements.

  • Global Standards & Compliance: We are fully certified to ISO 9001:2015, ISO 13485:2016 (Medical), and IATF 16949 (Automotive). Our products are compliant with RoHS, REACH, and UL standards.

  • Massive Production Capacity: Operating from a 10,000㎡ state-of-the-art facility, we serve industry leaders in more than 80 countries.

  • The “Zero-Defect” Promise: We implement a 300% inspection policy (Material, In-process, and Final QC) to ensure mission-critical reliability for every shipment.

Email us now:

sales@romtronic.com

Our Products

As a versatile cable assembly manufacturer, Romtronic provides high-precision wire harnesses and integrated interconnect solutions engineered for the most demanding commercial and industrial environments.

Our extensive manufacturing capabilities cover a wide array of configurations, including DisplayPort, LVDS, USB 4.0, DVI, SATA, and high-speed eDP linksBy utilising specialised connectors such as JST, M8/M12/M16, and RS232/VGA, we ensure that every custom assembly is optimised for signal integrity and long-term durability, regardless of application complexity.

Custom Wiring Harnesses: Specifically for industrial and automation control systems.
Custom Wiring Harnesses: Specifically for industrial and automation control systems.
Parallel Interface Cable Assemblies: For high-density interconnect applications.
Parallel Interface Cable Assemblies: For high-density interconnect applications.
Custom multi-branch cable assembly with a 20-pin rectangular connector, a DB15 D-SUB, and color-coded 4mm banana plugs
Mixed D-Sub Cable Assemblies: For versatile input/output (I/O) connections.
Universal 3-in-1 motorcycle OBD2 adapter for ruggedized vehicle diagnostics.
Automotive Diagnostic OBDII Cables: Specifically for vehicle on-board diagnostics.

Why Choose Us?

Certified for High-Compliance Industries: IATF 16949 | ISO 13485 | EN 45545 | USB4 TID.

01.
A professional quality assurance graphic representing Romtronic's 300% inspection process for high-reliability wire harnesses and interconnects

300% Inspection & Zero Defects

Every product undergoes rigorous multi-stage testing, ensuring zero defects and uncompromising quality for high-reliability applications.

02.
An advanced in-house laboratory at Romtronic featuring precision testing equipment for electrical, mechanical, and environmental cable validation

Independent, Fully Equipped Laboratory

Our in-house lab validation includes TDR, salt spray, tensile, and bending testing to ensure advanced signal integrity and durability.

03.
A professional graphic stating 'Small Quantity Orders Accepted', representing Romtronic's High-Mix Low-Volume (HMLV) manufacturing flexibility

Small Quantity Orders Accepted (HMLV)

Specializing in High-Mix Low-Volume production. Flexible MOQs start from just 10 pieces or a total order value of over $100.

04.
29Y OEM & ODM Experience

29Y OEM/ODM Experience

Partners with global brands like Siemens, Bosch, and Samsung.

05.
Romtronic's skilled engineering team collaborating on high-precision wire harness design and DFM analysis.

Professional Engineering Team

12 experienced engineers proficient in CAD and Pro-E drafting.

06.
High-speed automated wire cutting, stripping, and crimping machines at Romtronic's advanced manufacturing facility.

Advanced Automation Equipment

Laser wire stripping and fully automated production lines.

07.
Romtronic's service guarantee of responding to customer inquiries and technical requests within 24 hours.

Service Response within 24 Hours

24/7 online support and rapid technical expert feedback.

08.
Romtronic's professional sales team providing technical consultation for custom cable projects.

Expert Sales Team

18 sales professionals with 10+ years of global industry experience.

09.
Romtronic's flexible manufacturing floor supporting rapid changeovers for custom cable assembly projects.

Operational Flexibility

Operations designed to meet diverse customer needs and business models.

What Our Customer Say

Working with Romtronic for our custom automotive wire harnesses has been an outstanding experience. Their team, particularly Emily, delivers exceptionally prompt and professional service. On top of that, the structure and detailing of their products are incredibly precise and well-engineered.

Anna H. Hathaway

Senior Hardware Engineer

We love working with Romtronic. Their medical wire harnesses are always top-notch, and they deliver with incredible speed. In the demanding healthcare industry, finding a company that strikes the perfect balance between quality craftsmanship and efficiency is rare.

Steffen Neumann

Technical Project Manager

Working with Romtronic has been a game-changer for my industrial automation projects. Their team is incredibly responsive, consistently delivering premium, marine-grade products. They provide fast, reliable, and high-quality solutions that keep every one of my projects on track.

Connor Pasley

Strategic Sourcing Specialist

Romtronic has always been our go-to partner for automotive wire harnesses, and they never cease to impress. Every single product is meticulously crafted with an exceptional eye for detail. As a premier supplier in the automotive industry, they are truly set apart by their professionalism and reliability.

Marie Caron

Lead R&D Engineer

Contact Us​

Feel free to contact us by filling out the form to request a quote for cable assemblies or wire harnesses or to schedule a factory tour. You can also take a live video tour of our company at your convenience.

Romtronic's professional office area designed for efficient project coordination and global client communication.

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