Rotocast #21 | Practical PPC in rotomolding: from order to production and shipping — LIVE

What you gain by watching

• Learn to see the real bottleneck of your factory before promising deadlines and scheduling in the dark.
• Bring to the shop floor a PPC that works on paper, in the spreadsheet and on the board — without depending on expensive software.
• Protect margin, team and customer with a validated process, in-line quality control and tax planning.

Episode chapters

1. 1

   Start Roto 21: the PCP that prevents loss and team burnout

   When production control fails, the problem isn't just the loss: it runs through the supplier, the customer, and wears down the entire team. In this Start Roto 21, we revisit the topic we had only skimmed over in the previous episode and truly dive into production planning and control — the so-called PCP — to show why knowing how to schedule is so decisive on the factory floor.

   How important it is for you to have control, to know how to do your scheduling, and how much that reflects when you're not aligned with your production, with your supplier, with your customer

   ▶ Watch at approximately 5:39
2. 2

   Sold too much and the factory turned to chaos? PCP is the answer

   The order vanished between sales and the factory floor, the priority changed mid-week without criteria, and the part was ready outside the shipping window — the problem is almost never selling too little, but selling without control. That's when we showed how PCP stitches sales and production together, and we told the story of the pizzeria back home to illustrate why the delivery sequence has to be respected: when the customer is already eating, the repeat order goes to the front, but always in a justified and calculated way.

   It's not just about selling a lot, you have to sell with quality.

   ▶ Watch at approximately 10:52
3. 3

   Your bottleneck runs production — and almost no one knows where it is

   Many companies have no idea of their own production limit, and that's where PCP stops being expensive software and becomes a method: on paper, in a spreadsheet, and in a decision to stop reacting and start scheduling. We talked about the theory of constraints, from Goldratt, and showed that in rotomolding the bottleneck is usually the mold or the oven — if you schedule above it, you create a queue and delays, no matter what the other machines can handle; and we remembered that even overtime runs into real constraints, like the fan noise that no neighbor can stand at night.

   Oh, you can produce so many parts per day, but in how many shifts?

   ▶ Watch at approximately 16:04
4. 4

   The bottleneck nobody sees: a big machine doesn't guarantee a part ready on time

   Having machine X doesn't mean delivering part Y on time — when oven time becomes unfeasible, production stalls even with equipment available. We show how to calculate real capacity between 13 and 16 cycles per arm, consider the resin and the part, and discover that sometimes you need six molds — not one — to meet customer demand.

   It's not because you have a machine X, right, that you're going to end up being able to produce part Y, because depending on the mold dimensions, the amount of, uh, of material that goes inside the, the, equipment, uh, it's possible for you to produce

   ▶ Watch at approximately 21:08
5. 5

   When sales sells what the factory can't deliver

   We've already lived the other side: a director who only wanted to sell, sell, sell, without asking whether there was any way to deliver — and then production ran over orders, squeezed finishing, delayed delivery after delivery. The turning point is understanding that the order book is the living list of what has been sold and hasn't been delivered yet: without it visible to production and sales, on paper or an updated spreadsheet, any scheduling is a guess and the bottleneck turns into chain losses. Because when we can't take it on, it's better to say 'I won't take it, I won't deliver' than to justify a delay to the customer.

   ▶ Watch at approximately 26:10
6. 6

   The management board the director wanted to hide

   When we proposed putting management out in the open, the director quickly went about hiding the board behind the desk — but the factory owner only had to walk by and ask why the panel had disappeared. The proof that secrecy doesn't hold up came at that very moment: with everything visible, each sector could see where parts were missing and we reassigned people on the spot, and from then on we started measuring the oven's real capacity — net hours, discounting setup and mold changes — to know whether the order deadline was already born late.

   The proof is the secret. He asked.

   ▶ Watch at approximately 31:11
7. 7

   An ill-timed "yes" almost broke an entire automaker

   We've always hammered a simple point: deadlines aren't improvised, and a "yes" given by someone without technical responsibility can cost far too much. In this case, an automaker client needed to restock, Júlio warned that it wasn't possible to deliver by the requested deadline — but someone answered the phone at the company and promised the delivery, and the entire launch was delayed with a truck sitting still and 15 people waiting on the line. After that episode, the client only wanted to talk to whoever actually understood the commitment — and the lesson that remains is the same one we repeat about the water tank: supplying a part means assuming technical responsibility, not just selling a product.

   But you're not going to deliver this. Oh, but you said you were going to deliver. No, I said I wasn't going to deliver, I can only deliver on such and such a day.

   ▶ Watch at approximately 36:16
8. 8

   Cheap resin, rejected batch: the risk nobody calculated

   We always warn the client: before switching resin or cutting costs, analyze whether that material can withstand sun, load, and the actual use of the part — because risk is only worth it when it's calculated. And it was that same logic that took us from production scheduling to that detail that brings down an entire batch: the glove contaminated with pigment that got an entire shipment of natural parts rejected, and the tax reform coming in 2027 to remind us that taxes also need planning.

   I've actually lost a batch of parts because the operator's glove was contaminated with pigment.

   ▶ Watch at approximately 41:20
9. 9

   Tax credits: the money sitting still that could be gone next year

   Did you know your company might be leaving money on the table — and that this could end soon? We showed the case of a client who started deducting tax credits of about two thousand reais per month, and another where the freight bill dropped from over six hundred thousand to just over one hundred thousand per quarter, just with the right analysis. While there's still time, it's worth sitting down with someone who knows and checking what's sitting still in there.

   Besides being able to hire us, he's even lowering his monthly cost just with our verifications

   ▶ Watch at approximately 47:09
10. 10

    The label that ended missing orders in rotomolding

    If the factory owner doesn't know where each order is, communication has already broken down and the rework of answering 'where's the order' consumes the day. It was by numbering piece by piece, with the order number and color, that production started seeing the status without asking, and the lost-order problem simply ended — because, as we learned, it's not software that solves it, it's process.

    It's not software that solves a problem, it's process

    ▶ Watch at approximately 52:13
11. 11

    Nothing beats a winning process: validate on paper before buying software

    Before investing in any management system, the way to go is to test the framework manually and only then automate — because doing the opposite is costly and usually doesn't stick. And there's no perfect framework: even a Scrum that worked in theory stalled the team, and the way out was to mix rituals and build a tailored process that actually ran on the factory floor.

    There's no perfect framework, you know? Because one thing is on paper, in theory, the framework works, blah, blah, blah, it's the best framework, it's the best software, one thing, but if your team doesn't pick it up, right, you know?

    ▶ Watch at approximately 57:29
12. 12

    A finished piece isn't a delivered order: the bottleneck that lives at the dock

    We experienced firsthand the chaos of counting pieces in the pile, walking across the factory to find out what had already gone to shipping, and discovering that, because they were the same color, no one knew anymore which order they belonged to. It was by setting up the Kanban board, bay by bay, that control came into our hands — and that's when we saw the real bottleneck in finishing and understood that every production gain dies at the dock when there's no checklist for quantity, damage, packing list, and shipping window. And more: an operator can only decide whether a dented piece goes or not if someone shows them what's acceptable, because throwing away in the dark, as we saw happen with an entire batch, is waste that not even the owner believed.

    A finished piece isn't a delivered order. The last link in PCP is checking quantity, damage, which is also very important, documentation, and shipping window.

    ▶ Watch at approximately 1:02:30
13. 13

    Without quality control on the line, the operator rejects good parts and the loss grows on the truck

    When the factory doesn't have structured quality control, the person deciding the fate of the part is the operator himself — and without technical knowledge he throws away what was just a recoverable dent, as we tell here when talking about the loss that shows up at shipping after the part has already crossed the country. It was from this real pain that our Essential Rotomolding course was born, from science to the factory floor: two days, one theoretical and one practical, with defect reproduction at the machine's edge, so the student knows how to identify the cause, correct it and no longer reject what could be saved just by heating it up — and the One Shot version is coming too, one day long, for those who want the same knowledge without the practical part.

    So you can have a little more knowledge, know the, how far you can go and what is an acceptable defect or not

    ▶ Watch at approximately 1:07:43
14. 14

    From Friday's micronized to the secret project that will mark rotomolding

    We took advantage of Igor's hook to announce that on Friday, at noon, Mr. Táir, from Jet Micronizadores, arrives to explain what a quality micronized material really is — and look, even those who have worked with rotomolding for a long time, like us, still discover basic details such as the difference between mesh and granulometry. In the same conversation, Júlio César called on companies to take part in a new editorial line of the community, a project we still can't fully open up but which will bring collective interviews and promises to mark rotomolding in Brazil — and it will only happen if you get in touch and take part.

    ▶ Watch at approximately 1:12:50
15. 15

    Outsourcing is starting, not depending: the price you pay when you master the process

    The market changes all the time — resin, politics, demand — and those who start by outsourcing run the risk of becoming hostage to technical decisions that even the supplier himself can't explain. On the other hand, we have trusted partners with idle machines ready to serve those with a tight bottleneck, but the takeaway is another: investing in knowledge is the only way not to outsource control of your own business.

    You can't be held hostage to a third party's technical decision

    ▶ Watch at approximately 1:18:05
16. 16

    Two episodes, a week of testing, and an invitation for Friday

    Next week we're doubling down: Start Roto episode 22 on Wednesday at 2 PM and Rotocast 44 on Friday at 2 PM, in a test that only makes sense with you along for the ride. Before we wrap up, the message is simple — subscribe to our social media and help spread the word, because this work is yours too; and we're already leaving the hook: on Friday at noon we have Tayre Mora, from Jet Microondizadores. A big hug and see you there.

    Não deixa de se inscrever nas nossas redes sociais, acompanha a gente aí que é importante o trabalho de vocês aí de estar ajudando a divulgar

    ▶ Watch at approximately 1:23:11