When This Checklist Applies

If your current case packer is down, on its last legs, or you're adding a line and the deadline is real, this checklist is for you. I handle procurement for a packaging operation — roughly 220 people across three shifts, and a budget that does not bounce back from a two-week line stoppage. I've sourced two case packer machines in the last three years (a wrap-around and a robotic case packer), and I've made enough mistakes in that time to keep this seven-step list taped inside my procurement folder.

Typical timeline from first call to machine on the floor: 8-14 weeks for standard models, longer for custom builds. Here is how I keep it from stretching into month four.

Step 1: Write down your actual numbers before you call anyone

Vendors will ask about throughput, case sizes, product weights, and line integration. If you answer with "medium speed" or "standard cases," you've already lost the quote comparison — every manufacturer interprets those words differently.

Get exact on four things:

  • Cases per minute (CPM) at your target speed
  • Case size range (min/max length, width, height)
  • Product weight range
  • Upstream and downstream equipment (conveyor height, glue systems, labelers)

I use a one-page spec sheet that I send to every vendor in the first email. It saves about a week of back-and-forth. (note to self: add ambient temperature to the sheet — one manufacturer asked and I didn't have the number on hand.)

Step 2: Verify the manufacturer, not just the quote

There are plenty of case packer manufacturers out there. Not all of them build the machine they're quoting. Some are integrators, some are trading companies, and some are actual factories with a sales office in front.

How I tell the difference:

  • Ask for the factory address. Not the sales office. The factory.
  • Request a video walkthrough of the production floor. If they hesitate, that's your answer.
  • Ask for two customer references you didn't find on their own website. Contact both.

This takes an extra week upfront. It has saved me from at least two bad partnerships. Case packer sourcing is mostly about filtering noise, and the reference call is the cheapest filter available.

Step 3: Separate "lead time" from "delivery date"

What most people don't realize is that the "standard lead time" on a case packer quote often includes buffer time that manufacturers use to manage their production queue. It's not necessarily how long your machine takes to build. It's how long their queue is.

So instead of asking "What's your lead time?", ask: "What date will the machine be on my floor, and what's your process if that date slips?" Then get the answer in writing.

Here's the part that caught me off guard: people think the fastest vendor is the one padding their schedule the least. Actually, the vendors with the shortest quoted lead times are often the ones who pad their dates the most — short numbers win quotes, and they know it. The date that matters is not the number printed on the proposal. It's the number the vendor will put into the contract with a penalty clause attached.

Step 4: Lock down changeover and fixture specs in writing

I said "wrap-around case packer." The manufacturer heard "wrap-around." We both used the same words. What we meant was different — they pictured a specific carton style, and I assumed it covered our 12-pack configuration. It didn't. The first test run failed, and we lost three weeks while they built new changeover parts.

The fix from that point on: every quote includes a fixture drawing for each SKU you're running. Not a general capability statement. A drawing, with dimensions, attached to the purchase order. If the vendor won't produce one, that tells you something about how they'll handle the next twelve months of the relationship.

Step 5: Require a factory acceptance test (FAT) with your actual cases

Sending your real product and cases to the factory before shipping costs a few hundred dollars in freight. Skipping that step costs weeks if the machine doesn't run your product when it lands.

I ask for video of the FAT if I can't attend in person. Even a phone video of the machine running my cases at target speed tells me more than any spec sheet. (this was back in 2023 — the machine I almost bought failed the FAT and the manufacturer blamed the cases. My cases, their machine. That was the end of that conversation.)

Step 6: Price the certainty, not just the machine

Here's where my thinking has changed. When you're up against a deadline, the cheap quote with an "approximate" ship date is often the expensive option. Missing a customer commitment or paying overtime to hand-pack for an extra week costs more than any markup for a guaranteed date.

In March 2024, we paid about $6,000 extra for a guaranteed delivery week on a high speed case packer. The lower bid quoted "10-12 weeks, approximated." That range was a 14% swing on the total. The $6,000 bought a fixed date and a contractual penalty if it slipped. It didn't slip.

In my opinion, the certainty premium is worth it every time you're close to a deadline. The vendors who can promise a date and put money behind it are usually the ones with their production under control — which is really what the extra money is buying.

Step 7: Set weekly checkpoints — and switch to daily near shipping

I said "keep me posted." They heard "whenever I get around to it." We discovered the mismatch at week 14, when the machine was still in their building and I had a line scheduled to start in eight days.

Now the purchase order includes checkpoints: weekly status emails starting at week 2, daily updates from the moment the machine enters final testing until it ships. Boring, yes. But boring is exactly what you want on the manufacturing side of your deadline.

Common mistakes to avoid

  • Comparing quotes on price alone. Two quotes for the same "case packer" often aren't for the same machine. Compare the fixture list, the FAT terms, and the shipping date — line by line.
  • Skipping your own samples at the FAT. A machine that runs perfect cases in the factory can fail on yours. It happens more often than the industry likes to talk about.
  • Assuming integration will be easy. The most expensive surprises show up on the line, not on the quote. Ask the vendor to specify conveyor heights and transfer points in the drawings before you sign.
  • Ignoring the invoice capability. I learned this one in a different category — I once bought from a vendor who could only issue handwritten receipts, and finance rejected a $2,400 expense. Verify they can issue a compliant invoice before the PO goes out.
  • Treating "we'll figure it out at install" as a plan. It isn't. Whatever you don't settle before the PO is signed, you'll be negotiating from a weaker position after the machine lands.

The whole checklist takes about a week of real work upfront. That week is what keeps the deadline — and the budget — intact.