Can Hydraulic Press Crush GIANT Sapphire? Almost Hard as Diamond! 

Thanks for Kron Technologies for letting us test the new Chronos 4K12 high speed camera! Link to their website for more information www.krontech.ca/?Y... Thanks also to Turtle's Hoard for sending the Sapphire Crystals for hydraulic press test! www.turtleshoard.com/

Thank you so much for crushing our sapphires!! I can't wait for part 2! It is kind of surreal after watching for so many years.

It would be very interesting to see these transparent objects lit with polarized light so the stress points would show on camera.

I'd like to see you incorporate polarized lighting into your endeavours. I think when doing crystalline samples, you might be able to see the stress lines forming. Now with the 4K camera it could lead to some very interesting shots.

The harder the material is being tested, the better the contact surfaces must be prepared, smoothed out, to prevent shards and debris from shattering test material causing a low tonnage result.Love the show!

It's astonishing how you can make content about crushing and destroying things with hundreds of thousands of pounds of force, and yet somehow every video is extremely wholesome and makes my heart feel happy

A new hydraulic press for Christmas! With the 4K high speed the crushes will be awesome! If you polish the ends of the sapphire and the anvils you will pick up a surprising amount of strength. Brittle materials like sapphire have high contact stresses due to uneven surfaces. This is why the cracks start at the anvils in the high speed. I'm guessing the resulting failure would be more spectacular (and scary).

For hard materials like this, makes me wonder if adding a lead or annealed copper sheet above and below would help even out the pressure so high points don't cause premature breaks.

I think the smaller crystal might have fared better if the ends were cut square. They seemed to be slightly angled so the press put all of its pressure on only a small part which caused premature failure. At 5:14 you can see the press is not making full contact and the section that it touches first breaks right off.

That new high speed camera is the bees knees(!). Truly next level image quality, and a terrific addition to the channel. And, we know it's only gonna get better and better with each software update, so I'm really(!) looking forwards to some absolutely brilliant footage.

What happens if you put a hydraulic press in another hydraulic press?

250-ton press is much more realistic goal than 1000-ton press plans from 2016. Can't wait to see it in action!

What about putting some soft material at the ends of the material being crushed, like rubber or aluminium (or both), to distribute the force more evenly?

At 5:12 you can see the crystal was not cut parallel. I bet it would be much stronger if you ground it flat and parallel or had a "soft jaw" to take up the difference. Must try again! 😎

The sparkles on that large saphire when it splintered is just amazingly pretty... love it! Might try different lighting effects while testing... anyway that was cool!

Congrats on your new press! Love your work, can't wait for the new mayhem. Love from India!

you need to do some schlieren photography to see if you can see the stresses building up in the crystal

Maybe you need to remove all the grit from the surfaces you're going to press, turn/lap them flat?

Consider adding a scale and calculating the explosion speed for us. Super pretty footage, thanks.

It's amazing we can grow sapphire crystals that big and flawless now.

New press hype! 4k Chronos footage looks excellent.

It would be nice if you can have a tin, lead, aluminium or any soft metal interface between the steel and the saphire, so force is spread as good as possible, and there is no single point of force issue to show how strong saphire is.

No way! A new bigger press sounds excellent! I can't wait!

3:34 thats why we all love coming back ♥♥

Clean the underside of the piston so there's an even pressure. Can't wait for the bigger press! 😊

Very cool, the sapphire cylinder was surprisingly strong. Strong enough to defeat the famous hydraulic press!

That's so cool! I wish you could crush solid diamond 💎

Love the high speed footage

I love how you can see cracks developing inside the material with that high speed ❤

I would assume (not an expert just an assumption) that glass makes more dust because it's amorphous right? Sapphire forms a crystal structure, so even at the small scale the little pieces want to stay together instead of further shattering into dust, glass doesn't have a crystalline structure.

By leaving shards of the previously crushed sapphires on the piston, they damage the big block before the full force of the press reaches the piece. it starts to crumble early. I bet it would have lasted longer if the surfaces were cleaned and flat before each crushing.

Seems the sapphire is extremely dangerous, and we need a stronger press to deal with it 😃

So this is how that Diablo 2 cinematic of the destruction of the world stone was made.

The GoPro Jump Height Indicator returns.

Something I thought about when I was watching this was earthquake lights, which haven't really been studied much, but a lot of earthquake videos have them in the video and I used to see them all the time when I was a kid and there were many notable earthquakes around here. The thing is that I only saw them directly when I didn't feel an earthquake because I was under my bed during the earthquakes. I did see one of the blue flashes that they make around here while under my bed during the biggest earthquake I was in (7.3 Richter), but I used to see those flashes coming from the ground at the bottom of the mountain a lot in and around the time when we used to have about one truly noteworthy earthquake a year. Now I don't see them very often at all and we haven't had many earthquakes that anyone feels either. People have hypothesized that light is released due to high pressure being exerted on the rocks and, when you crushed the sapphire, I wondered whether there were any flashes of light coming directly from it right before it broke and while it was breaking. I guess you'd have to do this experiment in the dark in order to see it happen but I would find it interesting to see whether crushing sapphire or other rocks creates a flash because I've seen a few experiments where it did happen. With that nice new camera you have, you would definitely be able to capture it so long as the camera is able to handle the darkness before any light that the rock emits before and during being crushed. This certainly wouldn't be easy but it would definitely be interesting and might genuinely contribute to the science of why lights come directly out of the earth sometimes. There are still a lot of people who don't even believe this happens and no one at all believed me when I said I saw the light come directly out of the ground and now many other people have seen it around the world so I think it's worth investigating, especially since I saw many of these earthquake lights around the time that we had some fairly large earthquakes so I'm wondering if the rock produces this light before it ruptures, which would make the most sense to me since the pressure would be the highest before the fault breaks and lessen afterwards. If we could figure out if rocks do produce these lights when a major earthquake in imminent, that could be very helpful to those of us who live in the midst of many faults that are on land. We do have an earthquake early warning system now but it won't be able to warn people who are right by where the fault breaks (although it will help people who are a little bit further away, which is better than having no warning like when I was a kid). If rocks produce light when they are under high stress and about to break, that might help us figure out which part of the fault is experiencing the most stress and is therefore the most likely to break. Anyway, just a nerdy thought I had from having taken too many classes in college or perhaps never enough. Cheers!

I watched the Kronos intro and teardown just before this. Nice camera

That. Fire. Also the sheer force of the sapphire exploding is utterly dangerously amazing!!

I hope your new press also has a base that flexes. That makes the explosions so much better!

I thank you for all the work you put in to make these videos

Omg! So excited for the new press :) will you still keep this one or has it had its day?

Wow. That video is awesome. Looking forward to crushing big piece with new press

A new camera AND a new hydraulic press? Talk about an early Christmas!

I like it when things blow up. Much respect.

I am very excited for 'THE BIG ANNOUNCEMENT'.

That camera is really a game changer. Can't wait to see the new press!

Hyvä video oli! ja Kiva kuulla Hannan naurua myös! :)

Whenever I watch your content I just end up happy and smiling. What lovely people 🇬🇧👍

What will happen to to to original press? I hope you are still keeping it... its the most famous and loved press on the internet. Even the sound it makes is strangely therapeutic 😊

Pretty cool for transparent aluminum!

Tip: you need to have another material above the sapphire. Like an aluminum sheet. You cannot have it directly against the hardened steel ram. I lift large buildings, mega ton jacks. Always a softer spacer between. Try it. You will get a better explosion too when it does go, because it'll take a lot more pressure.

Think that was the 1st thing that out lived the press I seen anyway.

Car springs Dont die

Such a quick and efficient way to cut gemstones.

I really enjoy this channel. That sapphire withstood so much pressure!

I can't imagine the things you will do with a larger press. I look forward to seeing the unveiling!

With any crystal, directionality is super important. The crystals are oriented very specifically. It could take 20 tons to shatter with the orientation while just a few hundreds of pounds to shatter it against that orientation…just a thought. Also the other thing is the quality of the artificially lab made crystal. This appeared to be a somewhat high grade. The big cylinder must have been perfectly aligned.

wow, excited for the new press! hell yeah

Your channel is so much fun!

Even with the new camera, I still want to see a collab with the slomoguys!

That high speed camera is badass

I think a got a great idea which I would love you to try out: When you make coffee some people who really make a science out of it have special tools to press the ground coffee with calibrated force into the holder to make espresso. I would like to see what coffee comes out if you make a beefed up bialetti-style mokka pot and press the coffee in with 100 tons and then see if you can press the hot water through it. Maybe you can make the whole mokka pot so strong that the pressure of the boiling water inside (reaching many bars like a steam engine) can press it and just act like a "Bialetti 5.000.000"

Bigger press! Can't wait. Very entertaining vid as always.

Super Cool!! The new Chronos is just delicious!!

what could be interesting is a to show the stress the glass is under. clear items can show stress with polarized lenses/

Crush some steel reinforced concrete 😬

You're truly artists with this machine. I was on the edge of my seat, fully puckered if you know what I mean, for every piece. The big one nearly turned me into a black hole! 😂🤣

The glass was like watching a glacier calve

I have a feeling if a block of wood or something compressible like a rubber mat were to be placed between the metal and the sapphire the sapphire would not shear as quick. I believe the minute surface irregularities are causing it to compress unevenly and shatter prematurely.

Congratulations on the new, upcoming larger press a month from now.

4:41 New camera looks great!! Wow

Did I hear new bigger press? I can only say this: One small step for man, a giant leap for science!

It sounds like HPC is a sponsor, kickstarter, investor, advertiser, or even friend of Kron Technologies. I'm curious which one, but they all sound pretty fun!

The flame is very beautiful.

Olisikohan kupari levyt ton lasin alla ja päällä nostanut murskaus voimaa? Tai joku muu materiaali mikä muotoutuisi ja tasaisi paineen koko pinnalle

Great video both .

Can take playing cards with 4k and compare to old videos to show how different the Chronos versions look like. Not just current software loaded in old cameras. What happen to Chronos Ring? I know it went back after filming but though was more videos from clips shown yet seems never release the out door videos.

A new press... Christmas has come early this year :)

How about a wall of eyeballs for every video?

I had to go back and read the screen when he thanked Turtle's Hoard for the crystals.... cause I heard something a bit different.

6:53 why does this make me think of the city in the never ending story?

New press!! Congrats

White quartz flashes internally when they are knocked together. It's the same process that piezoelectric igniters use. (I think). Maybe you can crush some in the dark and see if it looks good. The new press sounds like it is going to be an absolute beast of a machine!!! 💚🐇🐴💚

If I had a slo-mo camera I would just livestream slowmotion footage infinitely. I guess it isn't technically 'live streaming' which is why I find the concept amusing. It's just streaming ever expanding time dilation.

Boys, we found something we couldn't crush. Time for an upgrade!

Lauri… would love to see the watermelons with the eyes being put in with the crystals and glass!!

I could have used the window crystal 😢 I need a high pressure glass for a pressure vessel. Nice to know it's super strong 😂

Sapphire didn't got broke Bro: new more powerful Press is under production 😠

gorgeous imagery :)

Looks like they sent you reject items with micro-fractures. How sharp were the fragments?

I would love it so much if you guys teamed up with The Slow Mo Guys here on RU-vid for something like this! That would be amazing!

Hey, if you need rock supplies like books of mica to crush, I can help with that.

You could sharpen those long shards to make an awesome knife

That was COOL! Nice Camera!

It's so surreal looking at the extortionate prices of sapphire jewelry then getting a quick glance at the rock-bottom prices of these massive chunks online. It really is amazing; I got a sapphire the size of a golf ball once for $2 at a magic shop. Turns out it's a fairly ordinary stone!

Even a tiny little sapphire grain from previous destroy will make next crystal weaker.

I mean, hard doesn't mean resistance to crushing or does it? Just means u can't scratch it with a less hard material?

Just to think - that small piece of sapphire is strong enough to carry that big old locomotive engine known as "The German Krokodile" which used to weigh in at 120 tons

"Hello, it's Donut here" **woman screams**

I’m surprised you got such large chunks too. I’ve seen sapphire that failed under vacuum a couple times, and everything looked like powdered sugar.

You can numerically test different car jacks