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Liebherr boom deflection Options · View
hummer13
Posted: Sunday, August 15, 2010 2:03:30 AM

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Well you all know me recently as Mr Crane Hunter Teeth Well here is another great find, I spotted a boom up in the air and went hunting. Here is what I found, A Liebherr LTm 1200ish crane lifting stone onto a roof of a school in a concrete bucket.









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hummer13
Posted: Sunday, August 15, 2010 2:05:23 AM

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I walked behind the crane to get a better view of the deflection


Some close ups of the crane







Not a bad find

Jason

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cranedude07
Posted: Sunday, August 15, 2010 2:17:36 AM

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great pics jason, always amazed at how much the boom can bend like that and not break

Brandon

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dain555
Posted: Sunday, August 15, 2010 12:40:38 PM

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Nice find Jason!!

WOW, that's a lot of bend for just a bucket of stone!!!!!

Of course given the lift angle, the jib weight and such it must be nominal (well according to some)!!

Dain

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zomm1781
Posted: Sunday, August 15, 2010 10:10:27 PM

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Heres a few pictures of a LTM1220 same crane as above




Myggen
Posted: Sunday, August 15, 2010 10:40:45 PM
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Sry for posting when i dont have pictures about my story.
But i was on a grove gmk 3050 crane as a trainee (or what its called) once


And it was lifting a personel container above some powerlines and into a garden.


Most crazy ive have seen, i was sure the crane was gonna break :D the boom looked like a bow.
hummer13
Posted: Monday, August 16, 2010 6:57:43 PM

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cranedude07 wrote:
great pics jason, always amazed at how much the boom can bend like that and not break


It is pretty sweet to see, it was actually bending more when he was booming down I just could not get over fast enough to get that picture

JAson

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Gaz
Posted: Monday, August 16, 2010 7:08:59 PM

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Only small pictures sorry but this is a LTM1150 on fly....and only on a 62m main boom...not the full 66m







Bare in mind that this was with NO load, just the weight of the fly and hook block, could only lift a bag of sugar mind you!!!! lol
richie51
Posted: Monday, August 16, 2010 8:17:25 PM
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FLY FISHING........ by jr hartleyTeeth Teeth
A I Nikolis
Posted: Tuesday, August 17, 2010 8:45:41 AM

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Here is also a bit deflection on one of Kynningsrud's 1220. Nothing compared to what Gaz posted though.



//Alexander
Gaz
Posted: Tuesday, August 17, 2010 4:45:12 PM

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Todays Job, 5.4t @ 43m! 52.5m main boom and 46.8t counter weight.....again pretty bendy!!! lol



Gaz
A I Nikolis
Posted: Tuesday, August 17, 2010 5:11:30 PM

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I must ask something though. Most mobile cranes these days are built to tip before the boom snaps I guess? I was thinking about if you have full counterweight and full telescopic boom + full fly jib. That's going to be some deflection...

//Alexander
Gaz
Posted: Tuesday, August 17, 2010 5:20:53 PM

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And here's a little inside scope for you, this is the view the operator of a TC2800 is looking at when he is lifting 138m of main boom of the deck, the boom head raised 7m in the air before the middle of the boom even started to pick up!!!!

Look at the end of the boom!!!!!!!!



Yes i know its a Demag, but look at the BEND!!!!! Whistle Teeth

Gaz
Gaz
Posted: Tuesday, August 17, 2010 5:29:31 PM

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double post sorry!
richie51
Posted: Tuesday, August 17, 2010 5:42:17 PM
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gaz who took those pics at our stockton depot ? ,
Gaz
Posted: Tuesday, August 17, 2010 5:51:27 PM

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richie51 wrote:
gaz who took those pics at our stockton depot ? ,


My secret little gremlin that follows these big cranes around and feeds me pictures and info on there whereabouts! Teeth

Gaz
Gaz
Posted: Tuesday, August 17, 2010 5:52:47 PM

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Dam pooter is playing up!! double post!
DC Craneman
Posted: Tuesday, August 17, 2010 6:47:31 PM
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That is why some lattice cranes have mid-point pendant lines. An example is the old P&H 9125.
Crane Crew
Posted: Sunday, August 29, 2010 2:45:37 AM

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http://i805.photobucket.com/albums/yy336/CraneCrew/ScaryHey.jpg

This is my first attempt to post a file on here, hope it works.

As Dundee would have said that's not boom deflection, this......................

If you only do what you've always done, you will only get what you always got!

CraneBrain
Posted: Sunday, August 29, 2010 3:11:48 AM

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Crane Crew wrote:
http://i805.photobucket.com/albums/yy336/CraneCrew/ScaryHey.jpg

This is my first attempt to post a file on here, hope it works.

As Dundee would have said that's not boom deflection, this......................




HOLY JESUS CHRIST OF LIFT SIDE! That didn't end well at all! Amazing
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