When you are designing hardware that cannot fail at all, as in the case of medical equipment, aerospace, or robots in the industrial field, the wiring between the parts is not a simple linkage. It is the brain of your whole product. And it can be like walking through a minefield with a blindfold on to find the right partner to deal with that critical work. Make a bad decision and you are facing deadlines that are not met, overruns on budget and even field failures that can be disastrous. Get the right one, and you have a partner that is a part of your engineering staff.
How then, do you do this decision without putting your whole project timeline on the line?
Start With Your Non-Negotiables
Get a clear understanding of what will be called as high-reliability in your own application before you even begin to research on potential partners. What works very well in a data center with temperature control could blow up in an oil rig situation. Your wiring partner should be aware not only of the technical requirements, but the actual conditions your product will be subjected to.
Consider the certification requirements early. In the event that you are developing medical equipment, you will require compliance to ISO 13485. AS9100 is required in aerospace applications. The industrial setting may demand UL recognition. They are not nice-to-haves, they are gatekeepers and may take months to install if your partner does not already have them installed. You should enquire of the prospective partners on the certifications they have had and the average duration they take to obtain new ones in case of necessity.
The Experience Factor Matters More Than You Think
Here is one thing that has been easily forgotten, domain experience beats generic manufacturing capability almost all the time. An electrical connector having manufactured thousands of consumer electronics cables may not be at all ready to deal with the thermal cycling, vibration resistance and signal integrity issues of aerospace work. You want to work with someone who has tackled problems like yours in the past, and not someone who will learn the operation off your wallet or timer.
In the case of partners, examine their project history. Have they been working in your industry? Are they able to talk intelligently about the issues that you are going through? The appropriate partner must be posing you challenging questions regarding your requirements in the application, environmental conditions and testing procedures. In case they are providing you with generic answers or say that they can get anything, it is a red flag.
When it comes to projects with specialized knowledge, dealing with specialized vendors such as those that provide precision cable assembly services may sometimes imply shorter turnaround times since they already have the solutions to the difficult problems you are about to face.
Geography and Communication Channels
Now we can talk about something practical, which is time zones and communication. Are you ready to experience a communication lag when you are trying to work with a partner on the other side of the globe? In other cases, such offshore cost saving is consumed in project delays due to asynchronous communication and cultural differences.
With that said, international relationships may be very successful when they are set appropriately. Certain regions have gained expertise in certain areas that would be difficult to find elsewhere. A Italy PCB manufacturer, as an example, may take decades of precision engineering culture and attention to detail that fits your quality requirements. The trick is to set up well-defined communication procedures at the very beginning of the process, i.e. frequent video calls, collaborative project management tools, and points of contacts who are aware of both the technical and business aspects.
Prototyping Speed as a Predictor
This is one of the tests that tell a lot: what is their speed in turning a prototype? This is not a matter of speed as an end in itself. A fast prototyping partner is typically one whose processes are lean, has strong supplier relationships, and engineering bandwidth sufficient to take your project without having to be bottlenecked.
Note the way they take the prototype stage. Will they extend you with constructive suggestions on your designs? Do they detect possible manufacturing issues prior to them becoming costly issues? The most effective partners do not simply take orders, but are collaborators. Provided that they are constructing exactly what you ordered and never questioned it, then they may not be considering manufacturability, cost reduction, or reliability mitigation.
Scalability and Capacity Planning
Although you may be beginning with a small pilot production, consider the volumes of production. Is this partner scalable with you, or will you have to re-qualify another manufacturer at the point you are about to scale? Moving between wiring partners in the middle of the product-life-cycle is a very costly and risky undertaking, you are virtually re-testing a significant portion of your product.
Inquire directly regarding their ability. What is the number of projects they are undertaking at a time? How long is their average lead time during high seasons and low seasons? When you need high precision and repeatability such as in the case of cable assemblies for robotics, then you want a partner that will not cut corners when operating at full capacity.
Quality Systems That Actually Work
All producers will assure you that they have effective quality systems. Dig deeper. Inquire about their inspection procedures, their rate of defects and above all their corrective measures. How do they handle failures? How do they go about root cause analysis and preventive measures?
Ask to look at their quality documentation of a similar project. Review their inspection reports, initial article inspection process and their statistical process control. In case they are reluctant to give this information then it should be a red flag. Cable assembly services providers that are mature are characterized by transparency regarding quality processes.
The Timeline Reality Check
Last but not least, there is the elephant in the room, which is realistic timelines. A partner that makes unrealistic rapid turnaround is either overstating themselves, or they are not aware of the complexity of your project. Both scenarios end badly with you.
The most suitable partners will take you through their process step-by-step, how they require time, and where they can save time. They will figure out long-lead-time items in advance: special connectors, special tooling, compliance testing, etc. so you can plan about it. They will also include buffer time on the unavoidable design cycles and qualification testing.
Moving Forward With Confidence
Selecting a wiring partner of high-reliability hardware is a decision that should be given more time and consideration than it usually has. An ideal partner is indeed considered a strategic asset by assisting you in avoiding incorrect judgments caused by inexperience, facilitating the progress of the time span by virtue of manifold expertise, and most important of all, ensuring that the product operates seamlessly when it reaches the grassroots level.
