Amphenol
MIL-spec circular & RF cable assemblies for aerospace, defense, and harsh environments.
View DetailsWIRE HARNESS MANUFACTURING
Custom Harnesses with Multi-Brand Connectors
At QL-Custom, we source connectors from leading brands — including Amphenol, JST, Molex, TE Connectivity, JAE, Hirose, and more — and assemble custom wire harnesses & cable assemblies. One partner, multiple brands, global delivery.
Why choose QL-Custom
With more than 25 years of experience in custom wire harness assembly, QL-Custom has built stable sourcing channels for world-class connector and harness brands, supported by full in-house manufacturing capabilities. Unlike regular trading companies, we do not only supply standard products — we also modify, restructure and customize brand harnesses to match your exact project and equipment needs. Our solutions fit industrial, medical, aerospace, new energy and other industries, giving you full brand flexibility and tailor-made designs.
Obtenir un devis rapide27+
Brand connector
4–12h
Quote turnaround
100%
Electrical Tested
Multi-Brand Custom Harness Assembly Solutions
From a single hard-to-find connector to a full over-molded multi-brand wiring system — we have stable sourcing channels and process knowledge to deliver exactly what your design requires.
Cross-brand sourcing
Original connectors, terminals and cables sourced across 30+ leading brands in one consolidated order.
Engineering in 4–12h
Our engineers return drawings and quotations fast — a reliable signal of a true manufacturer.
Small to mass quantity
Prototype batches from a few pieces, scaling smoothly to mass production in 4 weeks.
100% Tested & Traceable
Every assembly is 100% electrically tested with full lot traceability and inspection reports.
01
Materials
recommended
We recommend the right wire, shielding and connector combination to match your cost and performance targets.
02
Alternative
Component Solutions
We provide qualified component alternatives to cut your material costs without sacrificing performance.
03
Fast Prototype
Delivery
We build pre-production samples quickly to validate your design before full-scale manufacturing.
04
Dedicated Project
Soutien
Our dedicated project team tracks every order from design review to final shipment worldwide.
Full-Brand Product Matrix
Custom harness assemblies covering all major connector brands. Click any card to explore brand-specific capabilities and product lines.
Phoenix Contact
COMBICON & push-in terminal harnesses for control cabinet and fieldbus wiring.
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Switchcraft
XLR & TRS cable assemblies for professional broadcast and live audio systems.
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Deutsch (TE)
DT/DTM series harnesses for off-highway, heavy truck, and agriculture machinery.
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Four Pillars of Our Assembly Platform
Multi-Brand Adaptation
We offer all major global harness brands. Choose any brand or model and source all your harness parts from a single partner.
Non-Standard Custom
Complex routing, overmolding, shielding, and waterproofing engineered to your exact functional requirement.
Rapid Delivery
Standard lead time: 10–15 days. Expedited service available. Reliable on-time delivery via strict production planning.
Quality Certified
ISO 9001:2015 certified facility. 100% electrical test, pull-force test, and visual inspection are conducted on every harness.
100% In-House Manufacturing &
Stable Quality
Unlike pure trading companies, we complete all processes in-house, including cutting, stripping, crimping, welding, overmolding and performance testing. From brand selection and design to prototyping, mass production and final inspection, we control every detail. This allows us to guarantee precise quality, stable lead times and reasonable costs, avoiding inconsistent quality from outsourced processing. Every custom harness meets strict industry standards.
- In-house full production process from crimping to testing
- Fast prototype & sample delivery within short lead time
- Dedicated technical team for drawing review & design support
- Customizable packaging & labeling as client’s request
- 100% electrical test on every harness before packing
Industries We Serve
From automotive OEM to defense, our multi-brand harness assembly covers the full spectrum of industry-specific requirements.
Automotive & EV
Body wiring, powertrain harnesses, ADAS signal lines, and high-voltage EV battery harnesses.
Automatisation industrielle
Control cabinet wiring, servo motor cabling, sensor harnesses for robotic assembly lines.
Équipement médical
UL/CE-compliant low-voltage harnesses for diagnostic devices, imaging systems, and patient monitors.
Aerospace & Defense
MIL-spec wiring assemblies with full traceability, high-temp insulation, and EMI shielding.
Énergies renouvelables
Photovoltaic junction box cables, wind turbine control harnesses, and inverter wiring assemblies.
Certified at Every Stage
Our quality management system spans incoming materials, in-process monitoring, and final electrical validation — with audit-ready documentation for every shipment.
ISO 9001:2015
Quality Management
System
UL Listed
Component Safety
Certification
RoHS Compliant
Hazardous Substance
Restriction
REACH
Chemical Substance
Conformité
CE Marking
European Market
Conformité
Trusted by Engineering Teams Worldwide
QL-Custom consolidated our Amphenol and TE harness orders into one PO. Lead time dropped from 6 weeks to 18 days. Their engineering team caught a pin-orientation error before production — saved us a costly rework.
Michael Reeves
Automotive Tier-1 Procurement Manager
QL-Custom delivered 4,000 custom harness units on time with zero NCRs. Their ability to coordinate across multiple brand specifications in a single PO is a genuine procurement advantage for global teams.
Lars Eriksson
Engineering Lead, Industrial Robotics
QL-Custom consolidated our Amphenol and TE harness orders into one PO. Lead time dropped from 6 weeks to 18 days. Their engineering team caught a pin-orientation error before production — saved us a costly rework.
Sarah Okafor
Operations Lead, Medical Device Startup
Ready to consolidate your harness suppliers?
Send us a BOM or schematic — quote within 24 hours, guaranteed.
Blog
In order to make our customers trust us more, we will continue to update our frequently asked questions and knowledge, so that customers can learn more from our blog. And customers together progress, get a win-win situation.
Lire la suiteQL-Custom Technology Ltd.
QL-Custom Technology Limited is an ISO9001:2015 professional company that specializes in Custom made Over molding cable assembly and wire harness. If you are looking for the best partner in plastic molding, low pressure molding (PCB over molding) and wiring, then you have finally come to the right place where you will be served by a highly experienced and competent team – leaders in the industry. We manufacture high quality parts that are used in a wide range of applications across diverse industries.
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