Latest / Hardware Startups with Fexingo: Devices, Robotics, and Manufacturing Tech Companies / How Hardware Startups Use JIT Supply Chains Without Going Broke
Transcript
- Lucas: If you're a hardware startup and you're not thinking about just-in-time supply chains, you're probably burning cash on inventory you don't need. But if you go all-in on JIT the way Toyota does, one delayed shipment can shut your whole line down. Luna: So it's a balancing act — how do you get the cash efficiency without the risk? Lucas: Exactly. And there's a robotics startup in Pittsburgh — they make autonomous mobile robots for warehouses — that figured out a really practical middle ground. They cut their component inventory costs by about 40 percent without ever stopping production. Luna: Okay, that's a real number. How'd they pull it off? Lucas: First, they segmented their components by lead time. Anything with a lead time over twelve weeks — which for them was mostly microcontrollers, motor drivers, and certain sensors — they kept a fixed buffer stock. Not enough for three months of production, but enough for three weeks. Luna: So they're basically self-insuring against the long-lead stuff, but not overstocking. Lucas: Right. For everything else — resistors, capacitors, connectors, things with lead times under four weeks — they went pure JIT. They found a regional distributor in Ohio that could deliver within two days. That let them hold less than a week's worth of those parts. Luna: And the distributor didn't require minimum order quantities that killed the economics? Lucas: That's the clever part. They negotiated a kind of two-tier supplier trust model. They committed to a monthly volume forecast — not a hard PO, just a forecast — and the distributor agreed to keep that much stock available. If the startup's actual orders deviated by more than 20 percent, they'd pay a small fee. But they never triggered that. Luna: So the distributor basically becomes a variable warehouse. The startup pays for flexibility instead of inventory. Lucas: Exactly. The startup's CFO told me their inventory turns went from about four times a year to over twelve. That freed up roughly 300,000 dollars in cash that they plowed into hiring two more firmware engineers. Luna: That's a real trade-off — less inventory, more engineering. So what's the catch? There has to be one. Lucas: The catch is that this only works if you have predictable demand. This startup had about 18 months of sales history and a backlog of orders, so they could forecast reasonably well. If you're pre-revenue or your demand is lumpy, pure JIT on any category is dangerous. Luna: Right, because one surprise order or one supply hiccup and you're expediting air freight or worse. Lucas: Yeah. And they did get burned once — a firmware bug caused a last-minute change that required a different connector. Their JIT stock didn't have it, and they had to pay for overnight shipping from a different supplier. Cost them about 2,000 dollars. But they said that was the only premium freight event in two years. Luna: So the risk showed up, but it was manageable. I imagine a lot of hardware startups don't even track their inventory turns or carrying costs — they just buy a bunch of stuff and hope. Lucas: That's actually the norm. I've talked to founders who treat component purchasing like a one-time Amazon order. They buy enough for a year of production upfront because they're afraid of shortages. But the carrying cost — warehousing, insurance, obsolescence — can eat 20 to 30 percent of the component value annually. Luna: And that's cash that could be going into development. So the framework here is: segment by lead time, negotiate a forecast-based flexible agreement with a regional distributor, and keep a small buffer on the long-lead items. Lucas: Exactly. And one more thing — they also used a simple dashboard that tracked days of inventory on hand by category. Every Monday morning the ops lead would look at it. If any category went above two weeks for short-lead parts, they'd push the next order out a few days. Luna: That discipline is hard to maintain when you're growing fast. But it's clearly worth it. Lucas: Absolutely. And you know what's interesting? A handful of listeners actually support this show directly through buy me a coffee dot com slash fexingo. That support is what lets us keep digging into stories like this — real numbers, real trade-offs, no ads. Luna: Yeah, it's a small group that makes it possible for us to spend time on episodes like this instead of chasing sponsors. And we really appreciate it. Lucas: So back to the robotics startup — they're now scaling from 500 units a year to about 2,000. And they're planning to extend the same JIT approach to their contract manufacturer's supply chain. They're asking their CM to hold a small buffer of the long-lead parts on consignment. Luna: That's a smart next step. It pushes the inventory liability further down the chain but requires a lot of trust. Lucas: Right. And not every CM will agree. But if you have a good relationship and you're growing, they might. The key is to start small, prove the model works, then expand. Luna: So for a hardware startup listening right now, what's the single action they should take tomorrow? Lucas: Pull your bill of materials and tag every component with its typical lead time. Anything over eight weeks, figure out how much you'd need for three weeks of production at your current run rate. That's your buffer target. Everything else, look for a distributor who can deliver weekly with no minimums. Luna: And if that distributor is local or regional, even better for shipping times. Lucas: Exactly. That's the playbook. It's not glamorous, but it saved that startup hundreds of thousands in cash. Luna: And kept their line running. Which, at the end of the day, is what matters.