Milling a batch of White FDA compliant EPDM Rubber
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- เผยแพร่เมื่อ 27 ก.พ. 2019
- A 35 lb. batch of 70 Durometer White FDA compliant EPDM rubber is milled from scratch. 100 parts (by weight) of EPDM polymer are mixed together with 100 parts of Filler and other powders, plus 20 parts of Process Oil and other liquids.
- วิทยาศาสตร์และเทคโนโลยี
Brings back memories!! I once had a job making vinyl plastic, start to end. First, blended a batch of raw pvc (poly vinyl chloride) powder mixed with liquid plasticizers and concentrated pigments (base pigments that I measured with grams scale). Tossed it all on a hot steam-heated mill, cutting and folding, cutting and folding more. When it was all thoroughly melted and making the right “popping & snapping” sounds, one long smooth cut to peel away from the chrome roller and directly into a grinding machine. At the end of a shift, I was so thoroughly covered with pvc and titanium dioxide pigment, the black vinyl seat of my little Fiat car turned gray. . . . Hot hard work.
Sure ya did
Couldn't you just dust yourself off with the air hose? I work in a plastics factory currently, and by the end of my shift; I'm covered from head to toe in regrind fines. But it's no big deal, I just dust myself off with the compressed air gun.
@@SergeantExtreme Yes, air gun blew off the thick accumulations of grinder dust. . .. The tough component was Titanium dioxide (we called it “titanox”) that I was in contact in its purest undiluted form. It is the very pure white pigment that I scooped from bags to add to my “cake mix” of ingredients before cold blending. Then, buckets of that powdered mix of ingredients got tossed onto the rollers for “cooking” into actual vinyl. . . . By the way, another mill was next to me, and the other operator and I occasionally got into air gun wars, blasting clouds of plastic dust at each other. Good times!
@@reggievangleason9511 l did work on a ici plant in the UK similar process but a pre mixer ..then a Banbury pressure ram to turn it into a hot gel before going to the mill……then a water bath , cube cutter and cooling blender before putting into a 25 kg sack ……and after weighing the pigment out it was always very very difficult to remove red , green and black pigment from around your eyes …..but that was in the late 70s …
@@nobbytang
My dad worked keylax around the 70s.
Dangerous work then he said.
I've only machined this material, nearly 10 years as a seal maker. Never seen it made before. Enlightening
Looks so much easier than the mills I run good lord I'd love to be in this guy's shoes, I wouldn't mind going to work every day.
Respect to the skilled operator. Mixing on the mill looks hard.
I was a mill operator for a silicone factory, it's not to bad but the chemicals are dangerous and so is the mill, it takes a lot of skill to do this.
Lol not really, literally just dumping shit on it at the right time, and any of the spillover just gets redumped.
@@Mike-om4tv obviously you've never done this kind of work. It's a lot more difficult than you think. People who are experts like the operator here make it look easy. It's not easy.
Is that not dangerous to the health if you're exposed to those chemicals everyday?
My 1st job out of high school was running one of these mills for the ink industry. We mixed Nitrocellulose with pigments and solvents.
Funny thing with Nitrocellulose is its ability to self combust......it was fun.
The factory I worked at for 3+ years, exploded about 1 month after I left for another job.
That actually occurred here in the United States, but for another reason:
th-cam.com/video/IRbC4kowrrY/w-d-xo.html
Consider yourself lucky you got out when you did!
That's one nice pasta roller :)
Does this machine have a safety brake?
Hi bingo..👍, what solvent did you use for cleaning at the beginning of the video?
that machine looks like it takes no prisoners
This is exactly what I do for a living I run a 60 inch mill a 36 and a 20 inch mill pays great in the United States starting at 40,000 a year for me.
How did you find this work
@@rustyshackleford6693 I mean, do you really want a job here? Because they're hiring. You can just go to PAI's website, and hover your mouse over the "About" section, and click on Careers. Then you just apply for a job.
Why wouldn't you pre-mix all the fillers, additives, and oils in a Banbury mixer prior to putting that through the mill? Everything ended up in the pan anyway.
I have same question. When I did this, all was premixed to powder form. I pushed a canvas belt against the mix until the powder started to melt, the I lowered the belt and started the manual slicing to fold edges back in.
What is the plasticizer composed of?
The inventor, Jean Marcus Patterson, originally came up with the idea in 1857 whilst playing with random kitchen supplies and a pasta maker. Fascinating!
Can you help me know the correct rubber composition for making cylinders for printing machines?
هذا عملي اضافة للباودر الابيض ( كاربونات الكالسيوم + اوكسيد الزنك ) نستخدم الكاربون الاسود
Are these rollers heated or do they create enough heat through friction to soften the material?
Depending on the compound. Typically the bowls of the mill are kept to a set temperature by water cooling. Its the gear ratio of the bowls that induce shear (1:1.2 if memory serves), which generates heat to help process the elastomer.
Wouldn´t it be easier to mix the oil and dry stuff first to have a paste?
Most places do such in a mixer but in this case because of FDA regulations an contaminant issues it isnt feasible
Where can I purchase this large slab of rubber?
What did I just witnessed to be produced exactly??
Making the forbidden mystery airhead
please tell me how to foam silicone?
White compount and epdm. Counti compound experience
what is this rube made in to
👍👍👍
it's a cute little mill... to a previous commenter, the hardest part of that process by far is cleaning the mill properly.
Good asmr
Satisfying to watch, we make synthetic rubber sheets from wastage polyethylene for footwear industry, bag luggage industry and cattle farm. Let us know if you have anything on making synthetic rubber
How do you get in the business of this or even get a job as a rubber maker
Hi everyone
Any one tell me please which grade of EPDM rubber is for hydrolic Brake washer?
Seed oil?
Same machine makes candy in the same way.
What are the safety devices on this machine? It's surprising to me here in the UK to see these mills without lunn bars
The US isn't a nanny state. That's why things cost 3x as much, and take 5x as long to get done over here in the UK. You have to pay 5 guys to stand around and watch 1 guy work.
its like working with a wood chipper you just have to keep out of certain areas or the machine will take your whole life and not slow down
Spoken like a man with a strong attachment to his arms...
@@littlejackalo5326 that depends on where the work is happening. I assure you, you can find the five guys standing around while one guy works all over there place haha
@Dean Alexander That's what I thought, makes me cringe to watch it. I worked at the L&B in Leyland where the Lunn bar was invented, before I got there though.
As for being a nanny state, when you get lifted off your feet by an 84" mill, and the only thing to stop you being dragged into the nip is the Lunn bar, you'll thank God for 'nanny' Lunn's invention.
How much TiO2 . in this application
So what safety device is used to prevent him from being sucked in and becoming wafer-thin?
I don't think the owners of this company care about stuff like that, the rubber is the most important thing.
his brain
@@houseofwonders1 met a lot of smart people have you?
At 2:27, you will see a red line above the operator. That is one of the safety devices that shuts down the mill. If the operator is in danger, they can reach up and trip this line to shut down the machine. Some of the mills also have a knee plate on the lower portion of the mill. If both hands are compromised, the operator can shut down the machine by tripping this plate with their knee.
@@anfernee576 Thanks!
Aaaaa!!! The noise it’s making! *shudders*
Can you help me about rubber formulation of anti vibration mount
Yes
Wtf does the FDA have to do with rubber making?
Now if only I had a clue what this stuff is used for.
Ruining the environment.
@@andybaldman how so?
@@michaelmartinez5217 Google 'is epdm rubber safe'.
@@andybaldman Yeah not one negative thing comes up. Plactics r bad m'kay
@@Chris-du7hi Really? How long does it take to break down in a landfill? What other byproducts are used/generated in the process of manufacturing it? How much energy does it take to manufacture, and what is the carbon impact of that? Yes, anything that can't be recycled and has to eventually take up space in the ground for 100 years is bad. A planet can't do that indefinitely.
Creo yo que el operador o mezclador debería saber trabajar con ambas manos y me refiero al uso del cuchillo que usa para cortar . Lo demás esta perfecto
Ran a 48" and a 60" mill...
Got the job because the last person dropped his blade in the mill, and attempted to get it out...
He lost 8 fingers...
Even a tiny mill will and can kill you if you're not careful..
Sometimes we worked with a partner...
And every once in a great while, our blades would collide, and someone usually got cut....
Q lindo los año q fuy amsador ise toda las clases de caucho
Why are you not adding Carbon to it
Because the requirement is for a "white" FDA compound
He's making a flesh light lmfao
Is that EPDM 7602?
Sorry, no it is not.
No, that is not a valid compound number.
what is this thing
Where’s the overhead ventilation?
Out of frame above the mill. You can see a hood used on another machine in the background at 5:51; you can also hear the loud fans throughout.
Hello! I live in Vietnam.
Can you help me with the recipe for white rubber soles?
for what uses is this type of rubber, please
EPDM is used in conveyor belts, seals, weather-stripping... applications
Why am I watching this?
We make synthetic rubber sheets for footwear industry from wastage polyethylene and plastic bag in Dhaka
That must suck mixing and milling at the same time. We have a fully built mixer station that sits the floor above our mill that blends all the compounds for us and when it's done it drops down to the mill for milling.
We mix a wide variety of materials. In this case, it would not be possible to achieve the cleanliness requirements specified by the customer using an internal mixer.
@@martyl6388 how wouldnt it? We run colors and black material through our internal mixers. But when we switch from black to colors we clean the internal chute and mixer wheels with solvents and it comes out perfectly clean every time.
@@martyl6388 and trust me when I say zero contamination. we run medical grade rubber through that mixer every week. It's definitely possible if you run a cleaning operation on color change.
And don't forget to mention that this is cold mixing straight on the mill too. Takes AAAAGES.
I run a 60” and a 100” mill every day. We have ran color through our mixers as well with black rubber. And we have very little contamination. Color clean outs are key and actual clean outs are viral to the mixing and milling operation.
Cái này đơn giản mà
This must not be a high volume operation. Otherwise, it would be easier and faster to do the initial mixing in a Banbury and finish blending on the mill.
I would say it's more on par with lab scale. Like you say, Banbury or z blade would be much more efficient. Though I have had some interesting success masterbatching nanos in elastomer on a 2 roll vs z or Banbury.
Scusami, potrei sapere gli ingredienti?
Grazie anticipatamente
arm hair epdm
Shouldn't this machine be worked with a foot pedal?
Once you release the pedal, the rolls open up & stop for safety within a few milliseconds.
The idea of the hand getting caught & slipping between the rolls, worries me.
Careful with that loose fitting shirt!
I want this machine plz share diteals i m in pakistan thanks
Exact same stuff the put in oil and call it teflon
Just like the Pakistan videos, less all the safety gear
epdm rubber compound formula start with rubber, 245 oil, calcium carbonate filler, titanium oxide for colour batch, silica hardness, zinc oxide, stearic, wax, antioxidant, curing agent zdbc, zdc, sulphur, tmt.😂😂😂😂😂
I don't think it's a good idea to work near rolling mills with your gloves.
Talk about doing something the hard way
Pls help me
Que nervo ver fazer isso
回転体剥き出しで危なっかしいなぁ
そのうち手を巻き込みそう
All kinds of problems especially health problems like dam CANCER 🙄🙄🤔
Them gloves……… 👷♂️👎