Multi-Site Manufacturing: Why Dielectric, Centerline, and EMS Together Beat Single-Shop Suppliers
A single-source supplier means a single point of failure. The hard lesson of the 2020-2022 supply chain crisis is that one shutdown, one material shortage, or one bottleneck for one vendor can stall an entire operation.
Today, supply chain resilience is a buying requirement, not just a nice-to-have option. A multi-site contract manufacturer can offer sourcing teams many advantages over working with a single shop.
Key Takeaways:
- Our group structure is based around complementary capacities. Copper bus bar work (EMS) needs insulating plastic (Dielectric). Clients who need ferrous metal work (Centerline) often need insulative plastics (Dielectric).
- With a multi-site contract manufacturer, one vendor relationship replaces three with a single point of contact across plastics, ferrous materials, and copper bus bars. There’s less room for miscommunication.
- Multisite vendors don’t usually cost buyers extra time; the handoff is internal and established, which can actually be time-saving.
- Redundancy is real and a common buyer request. Our multiple sites offer contingency if one site is disrupted.
A Real-World Example of the Multisite Advantage
Dielectric Manufacturing isn’t a standalone shop. We’re part of a group that includes Centerline Machine in Waupaca, WI, EMS Industrial in Richmond, IL, and a fourth facility in Lake Mills, IA. That means across these four locations, we can handle projects that require plastics, ferrous metals, and copper bus bar work.
Yet, our clients get the advantages and convenience of a single relationship. They don’t need to coordinate with four different vendors. When the rubber hits the road, this is a major benefit, as one of our defense customers recently discovered.
We’re currently producing FR4 plastic components for a defense customer’s electrical box enclosure. After Dielectric, the parts move to Centerline Machine for assembly with the metal components. Then the final, completed enclosure gets shipped to the customer.
Before the current arrangement, a competitor was buying the FR4 part from Dielectric, then handing it off to another, separate shop for the metal assembly step. Somewhere along the way, the obvious question came up: why send the part to a competitor to finish when Centerline can complete the assembly in-house? Consolidating the process and the work didn’t require the client to make a new relationship and a new investment. It just meant recognizing how the pieces already fit together.
Multi-location supplier structure is for this exact type of situation. It’s not a fancy marketing claim about our ability to scale; it’s the practical result of a customer having plastic and metal needs from two facilities that are already grouped and working together.
Why Our Companies Complement Each Other
Our multi-site group didn’t get together by accident. It was a deliberate choice after looking into our vertical integration and the wide range of capacity and material types each facility could bring to the table.
Our partner, EMS, primarily uses copper for manufacturing bus bars. Copper bus parts typically require an insulating plastic component to guard them and prevent arcing. That insulating work is a specialty of Dielectric. These aren’t two unrelated capabilities that are bundled into one group. It’s a case where the customer ordering bus bar assemblies from EMS likely needs the plastic guarding component as well, and Dielectric is right there to provide seamless continuity of service.
Centerline and Dielectric complement each other for similar, but distinct reasons. Centerline and Dielectric serve similar clients who often require ferrous metal components and thermoset or thermoplastic materials for the same assembly. Centerline covers the metal components, and Dielectric covers the plastics side. A buyer doesn’t need to source their materials from two unrelated vendors that require two onboarding processes, two quality audits, and two relationships to manage. Instead, the buyer contacts one member of our manufacturing group and gets the quality and expertise of both.
Dielectric, Centerline, and EMS can cross-sell to a single customer based on whatever material their product requires. For metal parts, Centerline is the go-to. For a copper component, that’s EMS. Plastic parts come from Dielectric. Our customers don’t need to worry about which facility handles which material. They bring us the project, and we route them through to the right place.
One PO, One Quality System
When a buyer evaluates a single-source supplier relationship across multiple materials, practicality is essential. Is the process convenient and practical? It’s made much easier with a single point of contact who manages everything (regardless of how many facilities touch the project before it’s done.
Invoicing, on the other hand, can vary by client. We understand that it’s customer-specific and there isn’t one universal format that applies to every account. We make our invoicing flexible for buyers so it fits their procurement process.
With a single PO structure, we remove the administrative overhead and hassle of juggling three different relationships for a project that spans three material types. Instead of dealing with several account managers and sets of terms, the buyer has one relationship, and production goes to the facility best suited for their project material and requirements.
With fewer vendor relationships, there are also fewer chances for miscommunication. There’s a smaller, more manageable window where something can go awry, and if it does, you know exactly who to call.
Do Multiple Sites Slow Things Down?
It’s a sensible question—won’t more sites mean longer lead times? Buyers who haven’t worked with a multi-site group like ours before may worry that routing a project across two or three facilities will tack on extra time, compared to a single shop.
In practice, working with a multisite manufacturer doesn’t usually add to lead times, and in some cases, it actually speeds up the turnaround. The same lead times apply, and coordination between Dielectric, Centerline, and EMS is an integral transactional process, as opposed to a new vendor relationship that most buyers need to build from scratch.
The alternative process that most buyers face is one where they source a plastic component from one shop and a metal component from a separate, unrelated vendor, and then try to coordinate a handoff between two companies that have never worked together and don’t share a quality system—giving lots of room for things to go wrong or be misunderstood. The friction of onboarding, communication gaps, and competing schedules are a non-issue with an established internal handoff.
Built-In Redundancy for Supply Chain Disruption
Manufacturing redundancy is crucial for supply chain resilience. For example, if something disrupts operations at the Richfield, WI facility, there’s a real capacity elsewhere in the group to absorb some of the overflow. Centerline operates very similarly to Dielectric but with larger machines. So, if equipment issues happen at Richfield, Centerline can take on the work. Centerline also runs waterjet machines for cutting metal, but the machines can also cut thermoset plastics for Dielectric—there’s always flexibility.
Our Lake Mills, IA facility is a more direct redundancy point for Richfield’s work. EMS has some machining capabilities too, on a smaller scale, that we can also use as a fallback.
Redundancy mitigates risk; it doesn’t guarantee that one site can replace another’s full capacity or capability, but the partial backup offers reassurance. Buyers want to know that their suppliers have a contingency plan. We don’t just rely on a hypothetical option, but offer a clear, documented process. The multi-site group structure offers Dielectric a concrete safety point.
The value of a multi-site manufacturing shop isn’t in the number of facilities or even their individual specialties. The value comes from Dielectric, Centerline, and EMS offering complementary materials and capabilities.
Buyers don’t have to spend time trying to stitch together vendors suddenly in an emergency. For buyers combining plastics, ferrous metal, and copper bus bar work in a single program (or a buyer who’s been burned by single-source risk before), our group offers a clear contingency plan built in right from the start.
We offer one point of contact, cross-site redundancy, and a solid track record of successfully coordinating multi-material projects. Reach out to our team to learn how we might help make your next project easier to coordinate.
