I work for a rotational molding company of very large septic tanks and water tanks. I've never loved my job so much. I'm so glad I got into this industry!
hello, im interested in learning more about rotaional molding, can you please tell me whats the best machine as someone who has day to day experience in wear and tear. there are a lot of companies from india and china that sell this rotaional moulding equipment but how do i distinguish which machines has the most efficiency and has the least amount of trouble or repairs. as u are in the field im hoping you can asnwer my question. thank you
I worked rotational molding at a company but they had just closed down our plant and relocated to a different state. I’m going in tomorrow at this other job that does rotational molding! I’m glad I could find more work that I have 8 years of experience
I work in a rotational mold factory as a machine operator and honestly that powder won't harm you. At least ours doesnt. The only thing we worry about is the heat coming fro the oven when the oven timer cycles out so the next arm comes out of the 2nd cooling bay.
Definitely the most informative video explaining the process thoroughly and clearly compared to other videos on here. It's a far different process to blow moulding, injection moulding and extrusion.
Thanks for the comment! Now you feel why video is the best way to find a new supplier because you get to understand who is making your parts! Share and subscribe please to help us promote more videos like these
Great technology showing here. However, please wear mask when you guys processing or handling the plastic powder. For long term inhale, it might damage your lungs and cause cancer.
While there's no definitive upper limit, walls exceeding 1 inch (25.4 mm) become increasingly challenging in rotomolding. Thicker walls take significantly longer to heat evenly throughout, extending cycle times and reducing production efficiency. Additionally, very thick walls can lead to uneven cooling and potential warping of the part.
Roto mold is a great way to make some parts. It was shown to me using a bottle of pancake syrup. He rolled the container slowly and the syrup coated the inside of the bottle. Basic concept to show somewhat how it works. We made a product called The Dally Master using this process.
I've been working in roto molding for 5 years we don't wear masks they jus fog up your glasses but I'll be honest we prolly should smh as long as that damn machine is going in circles it's a go!
Nice presentation. Can water/UV graphics be applied to part surfaces? For example pad print or permanent decals like the toy trike in your video- but bigger in scale, perhaps even masked and sprayed two tone? It’s for a personal flotation device.
hi sir...greetings from me ..., I am now working in a plastic water tank company and I am having trouble developing durable molding clamps because so far our company is still using bolts, if you don't mind, can I get a good example of clamps ... and frankly our miulding is not precise thank you.
I use the process for Plastics lining of Steel Pipe Fittings. I need a larger macine which can take the load of Large steal pipe fittings. Can you supply a costom made machine for me ?
Polyethylene (PE) is the most common plastic used in rotational molding due to its excellent properties for this process. It's available in various grades, including: Low-Density Polyethylene (LDPE): Offers good flexibility and impact resistance. High-Density Polyethylene (HDPE): Provides higher stiffness and rigidity. Linear Low-Density Polyethylene (LLDPE): Combines the properties of LDPE and HDPE Polypropylene (PP): Offers good chemical resistance and stiffness. Nylon: Provides high strength and toughness. Polycarbonate: Known for its impact resistance and heat resistance. Polyester: Offers good chemical resistance and dimensional stability.
Hi Junaid. That foam is likely a 2 part polyurethane foam. After the product body is molded, both parts of the foam are injected into a hole. When the two parts combine in the molded part, they begin to form foam, expand, and then solidify. The expansion of foam creates a lot of heat and pressure. Any small hole that isn't plugged will shoot out foam.
For anyone familiar with the process - does YETI brand use any significant technologies or processes to differentiate their products from other rotomolded coolers? Or is it possible that YETI and other brands are made on the same machine using the same process?
Same thing. Except their plastic is much THICKER and the amount of foam inside is thicker as well. Even the lid is insulated with foam. Most coolers have no foam in the lid.
Can you make my patent 10525174 ? I am also looking for co-inventors and to take these to show and sell I am old 85 and no spare money so I want someone to take over when I go. Thanks, Rex R. Bahr
Ive been at my job for 4 years and our rings are so much smaller we have 3 or 4 molds on each side with only 11 minute cycles damn I would feel like a god at a much more spacious plant 🤣🤣 🤣
I work for a rotational molding company of very large septic tanks and water tanks. I've never loved my job so much. I'm so glad I got into this industry!
Thanks for sharing!
hello, im interested in learning more about rotaional molding, can you please tell me whats the best machine as someone who has day to day experience in wear and tear. there are a lot of companies from india and china that sell this rotaional moulding equipment but how do i distinguish which machines has the most efficiency and has the least amount of trouble or repairs. as u are in the field im hoping you can asnwer my question. thank you
The best video I've *ever* seen about Rotational Molding. Thank you.
Wow, thank you!
I like this guy. Landed on this by accident. Who would have thought you could make plastic molding interesting.
thanks!
I worked rotational molding at a company but they had just closed down our plant and relocated to a different state. I’m going in tomorrow at this other job that does rotational molding! I’m glad I could find more work that I have 8 years of experience
That is awesome! Why don't you call ASH and work there?
Used to make buoys and fenders for boats back in the 80's with a machine like that, we used liquid PVC instead of powder.
0:27 Called out, damn
But seriously, get some masks for your guys... dust is no good.
right! i thought that was hilarious
Yeap no masks while handling that fine powered products just plain stupid.
shots fired
I work in a rotational mold factory as a machine operator and honestly that powder won't harm you. At least ours doesnt. The only thing we worry about is the heat coming fro the oven when the oven timer cycles out so the next arm comes out of the 2nd cooling bay.
@@jacobgerig7552 It might not be harmful in short term but long term it definitely can cause harm to your lungs
Definitely the most informative video explaining the process thoroughly and clearly compared to other videos on here. It's a far different process to blow moulding, injection moulding and extrusion.
Thanks for the comment! Now you feel why video is the best way to find a new supplier because you get to understand who is making your parts! Share and subscribe please to help us promote more videos like these
So simple way to narrate the process. Very helpful. Keep it up
Thanks, will do!
I've always wondered how water tanks are made to handle tonnes of water weight and i stumbled upon this by accident. Great video
It's very cool that as the mold rotates and the plastic coats from the inside.
This helped me understand so much for my furniture design project. Thank you!!!
Glad it was helpful!
Thanks for this video. I just had this kind of moulding suggested to me and this explains it perfectly.
Glad it was helpful!
No respirators. OSHA would have a field day in there.
Our mistake - we were filming and not actually producing- cameraman oversight- they are always safe when manufacturing
Great technology showing here. However, please wear mask when you guys processing or handling the plastic powder. For long term inhale, it might damage your lungs and cause cancer.
Was thinking the same.
Was photographers fault- it was an unplanned shot at end of day- not real
*_Yeti has left chat_*
Yesterday I discovered friction welding exists
today it's Roto-molding.
Great video😊!! Can we get a uniform thickness distribution for around 7 mm thickness? And can rotomolding produce thick walls?
Thanks,
While there's no definitive upper limit, walls exceeding 1 inch (25.4 mm) become increasingly challenging in rotomolding. Thicker walls take significantly longer to heat evenly throughout, extending cycle times and reducing production efficiency. Additionally, very thick walls can lead to uneven cooling and potential warping of the part.
Great video. Very informative and helpful!
It was cool to film with those large wonder wheels spining slowly and coating the molds
Super video and well explained!
Glad it helped!
I just bought a roto-molded cooler and was curious about the process. Excellent video!
Glad it was helpful!
Thank you for the video! It was really interesting and the process was well explained!
Glad it was helpful!
I know this is a solicitation for business... but I love learning about this stuff!
❤️🇺🇸🇺🇸🇺🇸🇺🇸🇺🇸🇺🇸❤️
Thanks yes they are....but we are trying to keep jobs in America and videos do a great job of telling the story.
I am new to Plastic molding and love your video.
Awesome! Thank you!
Excellent video production!
I work at a rotational molding plant and we do a lot of Ag products. The one thing I like working on is Kayaks.
Good stuff
Learned alot about rotational molding, thanks!
wow, always wanted to know how my cooler was made!
Good machine and clear explanation.
Can we mould plastic toys parts of small quantity at low cost?
Thanks
We'd love to see what you have in mind! www.ashindustries.com/contact-ash
Yes you can
Great video
Thanks sir for your video
I am student of tool and die maker
Great stuff! Thank you!
Glad you liked it!
Roto mold is a great way to make some parts. It was shown to me using a bottle of pancake syrup. He rolled the container slowly and the syrup coated the inside of the bottle. Basic concept to show somewhat how it works.
We made a product called The Dally Master using this process.
good example of how it works thanks for watching!
I love rotational molding
Is the powdered plastic not harmful? Feel like dust masks should be used in factory to prevent inhalation.
Agreed, but at the time of filming it was thought to see his face. Production mistake not a procedure mistake. thanks
I've been working in roto molding for 5 years we don't wear masks they jus fog up your glasses but I'll be honest we prolly should smh as long as that damn machine is going in circles it's a go!
Nice presentation. Can water/UV graphics be applied to part surfaces? For example pad print or permanent decals like the toy trike in your video- but bigger in scale, perhaps even masked and sprayed two tone? It’s for a personal flotation device.
Yes you can! - www.ashrotomolding.com - give us a call
That's badass.
Very informative. Thanks
This was excellent
This guy is great and his company looks really solid. Unlike his parts.
As always it's best to call him to resolve your issues, one thing they know besides rotational molding is customer service
@@partgurus It was a joke! His parts aren't solid, they are HOLLOW!
sorry didn't get the joke.
Great video! Thanks!
Glad you liked it!
Hello, how much would it cost for one product to be made using your machines in general ?
there are better ways to prototype - for one? 3D print?
Good video, the presenter is hilarious
Indeed‼
Very Interesting!!
Glad you think so!
Build so many things this way wish the products was cheaper but gotta pay the people
And especially good people- we take care of our people.
hi sir...greetings from me ..., I am now working in a plastic water tank company and I am having trouble developing durable molding clamps because so far our company is still using bolts, if you don't mind, can I get a good example of clamps ... and frankly our miulding is not precise thank you.
...and possibly purple... cool video! 💜
can i produce pvc bumps this way and whats the productivity rate and how many molds can i put on one axe
can we change or add more thickness to the products?
Yes. It's custom to your needs!
@@partgurus awesome 👍👍👍
Why do roto-molding products lose color？
the sun
Wasn't lead used in plastic in the last century?
@@partgurus Is it possible for roto-molded products to never fade?
great companie
very cool process , but it looks like a slow process loading the material by hand.
much of custom manufacturing for lower volumes is done by skilled people. Robotics isn't always economical.
Bravo
Super plus bravo plus bravo
bravo3
I use the process for Plastics lining of Steel Pipe Fittings. I need a larger macine which can take the load of Large steal pipe fittings. Can you supply a costom made machine for me ?
ASH does not make machines but y9ou can try www.automationmachinebuilders.com/
Genius
The process is cool but the people at ASH are even cooler.
Can I make a powder for the mould from a recycled material such as PET?
Thanks
Welcome
Whats the mold material?
Polyethylene (PE) is the most common plastic used in rotational molding due to its excellent properties for this process. It's available in various grades, including:
Low-Density Polyethylene (LDPE): Offers good flexibility and impact resistance.
High-Density Polyethylene (HDPE): Provides higher stiffness and rigidity.
Linear Low-Density Polyethylene (LLDPE): Combines the properties of LDPE and HDPE
Polypropylene (PP): Offers good chemical resistance and stiffness.
Nylon: Provides high strength and toughness.
Polycarbonate: Known for its impact resistance and heat resistance.
Polyester: Offers good chemical resistance and dimensional stability.
I love you Hartie xx
What if I needed a rotomolded guard to maintain it's shape at 100c ?
Then you would want it molded from an atypical thermoplastic. Many are available, but part geometry is a factor. Lets talk
How big can you guys do
Kayak Size
and automatically our electricity is also still manual and we are also having trouble changing it
Which material is better for a Kayak? LLDPE or HDPE?
LLDPE is better due to its low density in water for better floating.. If hardness matters than ofcourse HDPE.
Myself from same field !
how to fill up the foam inside the finished product.
Hi Junaid. That foam is likely a 2 part polyurethane foam. After the product body is molded, both parts of the foam are injected into a hole. When the two parts combine in the molded part, they begin to form foam, expand, and then solidify. The expansion of foam creates a lot of heat and pressure. Any small hole that isn't plugged will shoot out foam.
I'm surprised those in the video don't wear any PPE or masks when dealing with all that dust.
We know, it was posed for the video years ago and they all wear ppe in actual production
So the plastic sticks to the walls huh?
not sticks- its a release mold- it settles due to the forces
@@partgurus So it settles and dries? How would it dry though if it keeps rotating into the heat?
How long does the process of making water tank happen?
Hi. It takes apx 1 hour to complete the cycles dependent on size
It depends on the size of the tank. The largest tanks can take 4 hours from start to finish.
Great Evuro need plastic molding
I did make the float molds for them. With their spider.
what is the of benefit float? And for what the float is Made?
whats low cost to yall? say a 30 x 40 closed
cylinder
give us a call to discuss. Tel. (800) 598-5274
For anyone familiar with the process - does YETI brand use any significant technologies or processes to differentiate their products from other rotomolded coolers? Or is it possible that YETI and other brands are made on the same machine using the same process?
Probably better quality material. But same process.
Something tells me they're all made by this company.
Same thing. Except their plastic is much THICKER and the amount of foam inside is thicker as well. Even the lid is insulated with foam. Most coolers have no foam in the lid.
Should probably get the guys dumping the plastic powder into the molds some masks!
AGREE! that was set up footage a long time ago as the video guy needed a demo. they wear full protection in production.
Buen vidio
Can you make my patent 10525174 ? I am also looking for co-inventors and to take these to show and sell I am old 85 and no spare money so I want someone to take over when I go. Thanks, Rex R. Bahr
these machines are very interesting
but it doesnt give me the definition.
Yes you can get definition- its based on the mold
I work at a roto-molding factory, we got so many spider arms
What do you make?
@@packagingscientist9530 hi Christ do you do Foam injection?
Ive been at my job for 4 years and our rings are so much smaller we have 3 or 4 molds on each side with only 11 minute cycles damn I would feel like a god at a much more spacious plant 🤣🤣 🤣
need a job c'mon down!
I run the Rock and Roll Roto machine
saw this at tonka toys, but wow
It's my machine! Rising Sun rotomolding in china.
Wait, you’re not Phil Swift...
Non practical for larger quantities until robots used
Good ass video
Big on moulding BUT not big on wearing dust masks. You can see the pulverised plastic in the air! Good luck breathing in that stuff all day long 😱
You are so right! We filmed this as a demo without thinking of the optics- they do wear masks....
sorry, I wanted to say in roto moulding machines
Can women be a molder? I've heard it's extremely physical
yes you can - it has lifting of resin involved but most other parts are using hoists
Surely a mask has gotta help when that plastic powder is floating around in front of your face?
Yes- cameraman take the hit on this one. It was not really a working scene it was last minute "get in there for the shot"
Why aren't masks worn when pouring that very fine plastic dust into molds? Small plastic particles sound like bad news for the lungs.
Blame the vidoegrapher...was only for the shot- masks are regular use
@@partgurus Great to hear!
These people shouldn’t be breathing in that plastic..
they wear masks ... we were were filming... no worries
large foot print, labor intensive , slow production.
Good
At least it’s low cost
Cheaper, Larger parts, easier processing.
Low overhead?
Great video
Can you use "PETE" plastic in in root moulding machines
It is possible to use certain grades of PET in rotomolding machines. However, it is not common.