Purchase custom wiring harnesses that are accurately manufactured and thoroughly checked before being sent to you. Get the exact parts that match your needs.
We use premium quality materials to make your custom wiring harnesses. Our team accurately follows your details to make your harness accurately. We have advanced technologies and machines to test and correct the harness design. Each wire is checked and carefully attached to the harness. We especially make the harness to carry both high and low power and signals. With the proper care and techniques, we offer you the custom wiring harness that matches your standards easily.
Our custom wiring harnesses smoothly carry signals, which helps stop errors, delays, and weak power flow. We design them to keep power loss low and to block outside noise that can cause problems. Every custom automotive wiring harness is tested by skilled workers and machines. We use strong presses and safe tools to ensure tight and sealed plugs and joints. This means the wiring harness works right the first time.
Our custom wiring harnesses are built strong and made to last for years. They can handle heat, oil, water, dirt, and shaking. We use covers like PVC, XLPE, Teflon, and jackets like LSZH and TPU to protect wires from damage. Extra sleeves and boots make them even tougher. This makes our custom car wiring harness safe to use in rough places, rain, or harsh weather. Our custom truck wiring harness keeps working even under stress and pressure in farm tools, off-road gear, and heavy trucks.
You can choose the details you want, such as wire size, colors, and plug type. We use trusted brands like Molex, TE, and Deutsch. For a custom wiring harness for an engine swap or a custom engine wiring harness, we produce the best customized options for you.
We give full support from the first idea to the last product. First, we listen to your needs and check your design. Then we make a 3D model and test it on screen. After that, we build samples for you to try and check. We make changes until it is perfect. Then we create the final wiring harness with the proper papers, labels, and marks.
We also solve problems like heat, shaking, and noise. We add shields to block noise and sleeves to protect from heat. If the harness faces strong shaking, we use ties, wraps, and seals to hold it steady. These are for reducing errors and saving costs.
Our team always keeps learning and improving. After testing each harness, we look at what worked well and what can be made better. We use that knowledge to make the next harness even stronger. This helps us work faster, with fewer errors and more reliable results.
We use only the best materials to make sure your wiring harness works well. For wires, we use pure copper for good flow. We also use aluminum with it to make it lighter when you asked. Each choice is made to fit your exact needs.
Covers are also essential. PVC and XLPE are strong and good for most uses. Our harnesses are especially made with heat and cold-resistant materials. Silicone stays soft even in cold weather. With these covers, the harness lasts longer, works more safely, and needs less care.
We follow safety rules like RoHS and REACH. We test for fire safety, chemical safety, and strength. This is why our harnesses work so well and last a long time.
Outer jackets protect the wires from outside harm. We use jackets that stop fire, sunlight, and water. For outdoor use, we pick jackets that block UV light and weather. For labs and planes, we use jackets that are light but still very strong. We also add foil or braided shields to stop signal noise. We use seals, wraps, and tight covers to keep out water and dust. This makes sure the harness stays clean, strong, and safe.
We also add molded parts around plugs to keep them steady. Heat‑shrink tubing with glue seals joints so they never pull apart. We tie wires with wraps, tape, or cloth ties for places with vigorous shaking. All these parts work together to make a safe, neat, and tough harness for extended use.
Store‑bought harnesses often do not fit well. They may not match your machine and can break more easily. Custom harnesses are different. They are made to fit your system exactly. And if the harness fits correctly, then it will save money and time for you.
Custom harnesses also make work easier and smoother. They remove extra wire and waste, which saves power and space. EVs can drive longer, engines run cooler, and machines work better. Because the custom wiring harness is designed for your system, it connects without stress, guesswork, or trouble.
In short, you cannot always depend on store‑bought harnesses for essential jobs. A custom wire harness is safer, stronger, and more reliable. It is a wise choice that gives long life, safe use, and less downtime.
Quality is essential to us. Each harness is tested many times in many ways. First, we check the wire color, length, labels, and placement. Then we tested each wire with power to ensure it worked as it should. We check plugs, crimps, and covers to see that they hold tight. We also pull on the joints to see if they stay strong. Sometimes, we test how the harness works with heat, cold, bending, and shaking.
We keep a record of our work to ensure the quality of your product. You know the harness is ready, safe, and strong when we ship.
We make custom wiring harnesses for Automotive sections. We also make custom wiring harnesses for EVs that carry significant power safely. Our harnesses are strong enough for small cars, trucks, and EV fleets. Power harnesses use thick wires, safe routes, and cooling parts to stay safe. We also add shields to stop noise so that GPS, sound, and control systems work without problems.
For planes and defense, we follow strict rules and safety marks. We use light but strong materials like silver, copper, nickel wires, and PTFE covers. These harnesses are built to handle space, heat, cold, shaking, and more. We follow standards like AS9100 and MIL‑STD. Sometimes we add backup wires, double shields, or lock plugs for extra safety.
Our harnesses have thick jackets that protect industrial machines from oil, heat, and damage. We also use strong connectors that lock tightly and do not slip. We add straps and ties for machines that shake often to keep wires from breaking. In robots and control panels, we keep wires neat and organized with clean paths and safe branches. We also add tubes and shields to guard against sharp parts and chemicals. All of our harnesses meet IP67, which means they can still work if water or dust gets on them.
For this section we especially use the materials that go through hygienic tests to ensure the safety and hygiene. Also we use special items that help stop noise and make data easy to read. For example, MRI or CT machines use slim harnesses that can bend without cracking. We also keep records so they follow FDA and health rules.
The Custom OBDII Connector is made to check cars quickly and safely. The body is built strong with a hard shell, safe pins, and thick wires that do not break easily. It can handle daily use without damage, even when pulled or pressed hard. This connector helps save time and removes guesswork. It shows real car data in seconds, helps find problems fast, and makes it easy to track car health and use.
Flat ribbon cables also help improve speed and reduce clutter inside devices. They are simple to install, safe to use, and built to last a long time without failure. They are used in computers, labs, small tools, and many home devices. They make systems run smoothly, keep parts safe, and give people peace of mind knowing all wires stay connected correctly.
The Custom XLR Cable is made to give clean and sharp sound with no buzz, no hum, and no noise. Even with heavy use, the cable design keeps sound waves steady, pure, and clear. The cable has strong shielding that blocks outside noise and protects sound signals from damage.
Overmolded Cables are built for hard use in shops, homes, or outdoor work. They have a thick, tough cover that protects wires from dust, dirt, heat, cold, and even pulling or bending. This strong cover also makes the cables easy to hold and plug in. They last long and keep working even in tough places where standard wires might break.
We work with clients from the start of the design until the finished product. Our team takes your plans or CAD drawings and builds 3D models. This lets us check for problems before we cut any wire. We can fix wire paths, reduce heat spots, and check signal safety early.
Once the design is ready, we make small test harnesses for you to try. You can test them on your machines to see how they fit and work. If changes are needed, we can fix them quickly and send new samples. This process saves money and time. The harness is already safe and proven by the time large production starts.
We use both skilled workers and advanced machines. Wires are cut and stripped with exact machines that measure to the smallest detail. The machines are especially programmed to get the work done accurately.
When people do handwork, they use power tools that always give the same results. Crimping tools are checked for the proper pressure. We use fully automatic machines for large production to make hundreds of harnesses daily. These machines cut, strip, crimp, and set wires quickly and correctly. Using robots and skilled people, we make strong harnesses that consistently meet the standard.
We can build one harness or thousands. For small runs, we provide fast service and samples within days. For larger orders, we increase our lines and still keep quality high. Our staff and machines can adjust quickly.
A custom harness saves money over time. We use high-quality parts, but innovative designs help reduce waste. By choosing the wires and layouts of the right size, we avoid extra costs. Neat and ready-to-use harnesses make installation faster. Because our custom wiring harnesses reduce failures, your machines run longer with fewer repairs. This means less downtime and more savings.
Quality builds trust. And because of that reason, we always follow the safety rules. Also, we use materials that are strictly tested. All parts meet RoHS and REACH safety standards, which are safe for people and the planet. Each part can be traced back to its source.
We test every step of the process. Wires meet UL, CE, or even MIL standards. Harnesses are tested for power, voltage, and safety. We pull, bend, and flex them to see if they last. We also test them in hot, cold, salty, and shaking conditions. We check our suppliers too. By the time the harness leaves us, it has passed all checks. You also get full test papers with each order.
Our custom wiring harnesses have helped many companies solve huge problems:
A robot company had wires breaking often. We built stronger harnesses with extra shields, cutting their downtime in half.
An EV company needed safe battery wires. We made harnesses that met strict safety rules and supported faster charging.
A truck fleet had high costs from weak wires. Our custom looms lasted much longer and saved them money.
Each case shows how a good harness saves time, money, and stress.
Choosing QL-Custom Technology Ltd. means you work with experts who have over 20 years of experience. We only focus on harnesses, which makes us very skilled. Our team is trained and certified. Unlike many others, we do not outsource. We do all the work ourselves, which makes results faster and safer.
We also support you at every step. We help fix design issues, make updates quickly, and keep you informed. Our testing and service are some of the best in the industry. That is why clients trust us. We give not only the best harnesses but also the best service.
David Wang has engaged Custom Wiring Harness and cable assemblies since 2008,while he graduated from college. After he taken over from Joe a Honkongnese retired who was doing standard Power Extension cables since 1997,the year Hongkong come back to China Joe invested 0.5million Hongkong Dollars.
After David Wang joined in this company, he was starting to contact North American & Europe "cold" customers to make custom wire harness and cable assemblies. He learned many cable and connector knowldge base and was a trained member of IPC620-WHMA-2007.
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