Rotocast #15 | The new era of rotomolding feat. André Signor Rototécnica | LIVE

What you gain by watching

• Discover how rotomolding can go far beyond water tanks and playgrounds, revealing a market full of unexplored opportunities in the Southeast.
• Learn how to choose the right machine for your reality — from Open Flame to carousel — and avoid the mistakes that cost you dearly on the factory floor, such as batches with the wrong color or suppliers of shameful quality.
• Get a first look at the future of operation: a 5.0 machine with a WEG touchscreen, voice alerts, and intelligent supervision that eliminate the operator's 'hidden knowledge' and prevent disasters before the fire starts.

Episode chapters

1. 1

   How Rototec was born from a balcony twenty years ago and wants to turn its machines into innovation

   When it comes to rotomolding, many people still think innovation is just having a new machine — and it was this perception that led us to open the microphone for André Signor to present Rototec. The problem that lives on the factory floor is that technical delay, the cat jumping on the table during the recording, but the conversation relaxes when André reveals the company's roots: children of Rotoplast, which was born twenty years ago making parts for poultry and swine farming and today is one of the largest cooler factories in the world.

   When we do remote like this, sometimes we always have a little technical problem or another, right? Since the team is still kind of small, still… Usually we already have technical problems.

   ▶ Watch at approximately 2:51
2. 2

   From the cooler to the 30-ton mold: the manufacturing evolution that few master in Brazil

   The conversation breaks down the trajectory of a company that was born manufacturing coolers and, along the way, left other products aside to go deeper into this niche. Within Rotoplastic, they migrated from spray-up fiber to RTM and, finally, to SMC — a sheet molding process that few companies in Brazil master in such a vertically integrated way, manufacturing everything from the compound to the mold. We talked about how this evolution required very high investments in technology, with machining centers capable of handling thirty-ton molds, and how Rototécnica, a daughter of this group, inherited all this capacity for innovation and quality production.

   ▶ Watch at approximately 7:52
3. 3

   From 1903 to an underserved market: how Rototécnica was born and why rotomolding is still unknown in the Southeast

   In the episode, we reconstruct the origin of Rototécnica from a century-old company that closed, but whose former employees spread knowledge and became a reference in Latin America. We tell how we carried this baggage — from pultrusion to vacuum forming — and how we see rotomolding as a market full of opportunities still little explored. We also raise the regional difference: while in the South the sector is better known, in the Southeast the technique is still associated with water tanks and planters, and we show how our traffic data reveals where interest really grows.

   We notice where people search the most, yeah, this, this kind of subject, right? Rotomolding… we have the curve really well defined, yeah, of the states where rotomolding is most active

   ▶ Watch at approximately 12:54
4. 4

   Rotomolding is still invisible: how to turn unfamiliarity into a market opportunity

   When we talk about the presence of the process in the South and in other regions, many people still don't know rotomolding beyond playgrounds and water tanks — but that's exactly where the growth opportunity lies. We tell the real case of a client in the North/Northeast who still produces tanks in fiberglass, without access to local rotomolding suppliers and with high costs, while another manufacturer jumped from one part per day to twenty or thirty by migrating to the process.

   We actually developed a product, it was fiberglass, he made one part a day, we managed to make twenty, thirty parts for him when we switched to rotomolding

   ▶ Watch at approximately 18:04
5. 5

   At Plástico Brasil, we broke a paradigm: we brought rotomolding where only injection was seen

   On the factory floor, anyone who wants to replace the cement toilet with plastic always runs into the same question: how much does it cost to get in and when does the investment pay off? We talk about how Rototécnica, besides pointing out the right machine, does this calculation by hand and also breaks another paradigm — we showed the market that there isn't only top-tier equipment, there's the lean solution, without unnecessary sensors and with a manual door, for those who are starting out without compromising quality. And that was the face we brought to Plástico Brasil, where many people saw a rotomolding machine for the first time at a plastics trade show, proving that what's missing isn't looking for novelty in Germany, but rather having the courage to innovate here, with humility.

   Wow, I saw a rotomolding machine for the first time at the plastics trade show, right.

   ▶ Watch at approximately 23:30
6. 6

   Rotomolding beyond the carousel: how the right machine avoids embarrassment in outsourcing

   On the factory floor, rotomolding is still associated with a single type of machine, but it's precisely this lack of knowledge that leads companies to accept suppliers with shamefully poor quality products. In the episode, we show that the choice of equipment — from an Open Flame to a carousel — should follow the real needs of those who are starting out, and we tell how a client only noticed the problem in the parts he received after learning to tag his molds in a training session.

   We had some people with us doing a training. When he showed me the quality of the products that the supplier sends him, look, it's shameful.

   ▶ Watch at approximately 29:02
7. 7

   The project nobody believed was possible in rotomolding

   On the factory floor, the anxiety to reveal new things always runs into the old question: will my machine be able to handle it? In this episode, we show how true engineering begins before the oven turns on — with the right sizing, listening to the customer, and validating every detail of the part. And we tell the story of an innovative product that receives high mechanical load and came to market because we participated from start to finish: mold, machine, and testing design, proving that even what seems impossible can come out of the oven.

   There are cases where we size a very small machine just for one mold, because its productivity doesn't justify such a high investment

   ▶ Watch at approximately 34:38
8. 8

   Shortening paths isn't skipping steps: how Rototecna delivers results where every project runs into problems

   When we talk about what sets apart a project that stalls from one that runs strong on the factory floor, the answer lies in the sum of the right choices — the right people, the right products, and a development DNA that doesn't accept shortcuts. We tell the story of a market leader that went through a complete project of part restyling and technical adjustments, and that today produces a lot daily with the right machine for the productivity it needed. And that's what we deliver: the ability to work around the obstacles that appear along the way, because everything runs into problems — what changes the final result is how you face each one of them, and it's that resilience that builds reputation.

   Everything, everything you're going to do runs into problems. It's how you face these problems, how you work around these problems, that will determine the final result.

   ▶ Watch at approximately 39:40
9. 9

   WEG's new screen turns a rotomolding machine into an assistant that talks, vibrates, and teaches

   When we asked about the possibility of controlling the machine by voice, like Alexa, the conversation opened the way to a true preview of the future: the 5.0 machine we are assembling features an unprecedented WEG touch screen, with multi touch, built-in supervisory system, and even a media player. This screen not only allows smartphone-like gestures, but can also give spoken alerts — such as 'Attention, check such and such' — and, if a sensor fails, it opens a video showing exactly how the operator should act. And if you hold your finger to save a recipe, it vibrates, confirming the touch, almost like a smartphone.

   It's going to be a turning point when it comes to the panel, when it comes to control

   ▶ Watch at approximately 44:46
10. 10

    No more operators in the dark: the machine that warns before the fire

    On the factory floor, the biggest danger isn't the machine breaking down — it's the operator who doesn't notice the problem until smoke appears. We talked about how many button-pushers spend the whole day with a punctured part or a fallen mold, without knowing how to fix it, and how the right technology gives them the missing information: out-of-standard temperature, stopped movement, wrong color. And we showed that the solution is already arriving with smart supervisory systems and sound alerts that warn at the moment of deviation, plus optical vision cameras that see inside the oven — because it's much better to prevent with a sound signal than to remedy by running after a fire.

    ▶ Watch at approximately 49:47
11. 11

    What a recipe is in rotomolding and how it prevents the two hundred blue parts mistake

    Getting the color wrong for an entire batch is a common nightmare on the factory floor — like the company that made two hundred blue parts when the order called for ten blue and twenty black. We talked about how the machine can notify the operator by cell phone at the right time to change the color, and we detailed the concept of a recipe for those who don't know it yet: the complete programming of times, temperatures, arm and plate rotations in stages that control the part from the oven to cooling.

    The screen it provides there, is, rotations, right, of arm, plate, temperature, is, times. And you have to program in five stages what will happen to the part the moment it enters inside the mold

    ▶ Watch at approximately 54:50
12. 12

    Process control: when technology ends the factory's 'hidden knowledge'

    On the factory floor, the dependency on a single operator who adjusts the panel 'hidden from everyone' is a bottleneck that no few companies still face — and it was exactly this pain that we broke down in this excerpt. We talked about how process control technology eliminates this erasure of knowledge, allowing any production change to be made via a pre-programmed recipe, without depending on 'what's-his-name'.

    Being dependent on, as I've seen several cases there, only on that person who goes to the panel, adjusts, tinkers there and hidden so no one sees what he's doing

    ▶ Watch at approximately 59:59
13. 13

    Oven at 300°C in 70 seconds: the efficiency the market doesn't know yet

    In our conversation, we reveal the behind-the-scenes of a technology that heats the oven to 300 degrees in just one minute and ten, while conventional machines need at least a minute and a half. This leap in efficiency comes from a well-dimensioned cylindrical recirculation system and radial exhaust fans, which generate different pressure and drastically reduce consumption. And we recall an extreme case from the past, when a rotomolder improvised an oven with a charcoal grill and had only 30% efficiency — something that today seems surreal given the level of technology that Rototecnica delivers at a competitive price.

    It automatically, it self-adjusts. So it goes up to full steam, you know, at full speed. To give you an idea, in one minute and ten it reaches three hundred degrees.

    ▶ Watch at approximately 1:04:59
14. 14

    From the rotational oven to inflated sheet: the complete map of the machines Rototécnica designs

    In the middle of that good conversation that flirts with barbecue — and who hasn't thought about hanging a rib in a rotational oven? — the talk took an essential turn: after all, what are the machine models that Rototécnica offers? We talked about the Shuttle line, with parallel stations that allow stopping one car for maintenance without halting production, the interconnected carousel, the RotoLab for laboratory use, and even open-flame ovens. And we went beyond rotomolding, explaining how vacuum forming works with ABS, polyethylene, and polycarbonate sheets, with that balloon that inflates the sheet before the mold rises — all to avoid stretching in tall parts.

    We have to understand what product the customer wants and serve them in the best possible way.

    ▶ Watch at approximately 1:09:59
15. 15

    The balloon in vacuum forming isn't just about speed: it's the key to a part without stretching

    On the factory floor, many see the balloon as a shortcut to speed up the vacuum, but the conversation reveals that its function is much more subtle: it prevents irregular stretching, ensuring that parts like travel suitcases maintain uniform thickness at the corners. From this technical exchange comes the proposal of an active group, with monthly meetings, where companies from the entire plastics sector can share problems and solutions, transforming rotomolding into a market that modernizes together. We talked about the importance of listening and reaching a common denominator, as in the 'toró de parpito', so that each challenge becomes an opportunity for evolution and business.

    The balloon is precisely to, to prevent irregular stretching on the part.

    ▶ Watch at approximately 1:14:59
16. 16

    From metal to polyethylene: how to migrate products and not struggle at the start

    When someone starts in rotomolding, the first temptation is to go out doing things without a support network — and that's where many get lost. In this closing, we talk about the importance of training the people who operate the machine, using quality inputs and, above all, seeing the market beyond the obvious, migrating parts made of fiber, wood or metal to polyethylene with bold design and corrosion resistance. And we make it clear that you shouldn't walk this path alone: seeking serious partner companies, like Rototécnica, is the shortcut to saving time and money, because the right guidance makes all the difference between getting discouraged along the way or building a solid business.

    Always, that's what I say: train the people, which is what you want, you're doing with this, it's a form of training, bringing information.

    ▶ Watch at approximately 1:20:03
17. 17

    Industrial confidentiality: what your company needs to develop a product without headaches

    In the closing of this episode, we talk about one of the most legitimate fears of anyone developing a product in rotomolding: seeing your own idea leak and reach the market before the official launch. We tell how the trust built with partners like Rototecnica is not only about mold quality, but about a real commitment to protecting your project — from confidentiality to the client's direct involvement in every stage of testing. We show that seeking reputable companies, which open their doors for you to follow the evolution of your product, is what separates a safe partnership from an unnecessary risk on the factory floor.

    It's knowing that nobody will find out about your product, only when you want people to know about it.

    ▶ Watch at approximately 1:25:20
18. 18

    Rototécnica: a partnership that opens doors to the rotomolding market

    We close this cycle by reinforcing the invitation to get to know Rototécnica, a partnership that came to us through the right connections and that today we recommend with our eyes closed. We talk about how this approach with Portal can lead to new conversations and opportunities, and we already preview what's coming next week: a chat about sequential machining and inserts, a topic that many people are unfamiliar with but that can greatly facilitate the process. The commitment stands to be together, Friday at noon, always bringing content that makes a difference on the factory floor.

    Yes, we are finalizing there a group of people who work with sequential machining and inserts for the rotomolding area.

    ▶ Watch at approximately 1:31:07