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thorleif wrote:Apologies if I've not grasped this(long day at work!) but would I need a separate hook block for the max lift of 1200 tonnes?.  that's a good question, i was wondering the same thing.... 
-John
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Formu1fan wrote:thorleif wrote:Apologies if I've not grasped this(long day at work!) but would I need a separate hook block for the max lift of 1200 tonnes?. that's a good question, i was wondering the same thing.... you´d even need a separate boom! a special heavy lift boom. the 1200 tonnes are just a theroteical value! 1200 at 3 meter reach. the crane is 3 meter wide, you´d need a piece weighing 1200 tons and being maximum 1m50 big, and you can only swing it around, not move it maximum load numbers of most cranes are theoretical values. the model gets delivered with the 363 tons hook block which is plenty enough since it will even be rather rare to see this crane lift 300+ tons all alone anyway...
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Formu1fan wrote:thorleif wrote:Apologies if I've not grasped this(long day at work!) but would I need a separate hook block for the max lift of 1200 tonnes?. that's a good question, i was wondering the same thing.... I'm not 100% sure here but most if not all cranes are rated at what they can lift at a certain distance,and the maximum lift capacity is closest to the slew ring,you'll probably find it can lift 1200 tons at a radius of 3/4m with no boom extenstion,and max ballast the chances of a real life lift of 1200tons at 3/4m i'm guess is pretty small,as it woul dbe inside the area of the outriggers however a bigger capacity would be able to lift more at a further distance from the slew ring,eg,where an ac500 might be able to lift 80tons at 30m with max ballast, the 11200 could lift 180/200tons at the same distance i think its a kind of grey area,as in theory if it lifts 1200tons at say 3/4m could it lift 1500 or more even closer, I'd imagine the terex ac1000-9 can lift the same but maybe terex calibrated its 1000 ton rating at a further distance,eg. 1000 tons at 5 or 6m as i said i'm not 100% sure about this but its the thoughts i have towards it
Why is "phonetically" spelt with a "ph"? ... It's better to be silent and thought a fool, then to speak up and remove all doubt The complex of Newgrange was originally built between c. 3100 and 2900 BC,[2] meaning that it's aproximately 5,000 years old. According to Carbon-14 dates,[3] it is more than 500 years older than the Great Pyramid of Giza in Egypt, and predates Stonehenge by about 1,000 years.
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If I'm interpretating the tech specs right, The 11200-9.1, at 2.5m radius can lift 1,200tons. http://www.liebherr.com/catXmedia/at/Documents/ccb77cd4-1f61-497c-b454-a52265eb9d51.pdfThis is the PDF. Go to page 34 and look in the top left hand corner
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Christian wrote:Formu1fan wrote:thorleif wrote:Apologies if I've not grasped this(long day at work!) but would I need a separate hook block for the max lift of 1200 tonnes?. that's a good question, i was wondering the same thing.... you´d even need a separate boom! a special heavy lift boom. the 1200 tonnes are just a theroteical value! 1200 at 3 meter reach. the crane is 3 meter wide, you´d need a piece weighing 1200 tons and being maximum 1m50 big, and you can only swing it around, not move it maximum load numbers of most cranes are theoretical values. the model gets delivered with the 363 tons hook block which is plenty enough since it will even be rather rare to see this crane lift 300+ tons all alone anyway... Goodness, even a separate boom . Oh well, I guess it's the 320t hook block for me then.
Scania V8. The best sounding truck in the world.
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thanks Mammoetman, now who needs 1200 tons lifted at 8feet
there should be a standard rating system,at a number of distances but then i guess thats called a Lift chart
Why is "phonetically" spelt with a "ph"?
... It's better to be silent and thought a fool, then to speak up and remove all doubt
The complex of Newgrange was originally built between c. 3100 and 2900 BC,[2] meaning that it's aproximately 5,000 years old. According to Carbon-14 dates,[3] it is more than 500 years older than the Great Pyramid of Giza in Egypt, and predates Stonehenge by about 1,000 years.
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Mammoet man is 100% correct 1200te@2.5m which is actually 1000te at 3m. a 1000te lift is totally impossible!!!!!!!!!!! you will only ever see this crane lift a maximum of 354te @ 7m as this is the minimum radius. i have a project coming soon to lift a 320te load on a single crane and this is as close to being a test lift as you are likely to get!!
in memory of Biscuit. dearly loved RIP 28.10.08
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jibtickler wrote:Mammoet man is 100% correct 1200te@2.5m which is actually 1000te at 3m. a 1000te lift is totally impossible!!!!!!!!!!! you will only ever see this crane lift a maximum of 354te @ 7m as this is the minimum radius. i have a project coming soon to lift a 320te load on a single crane and this is as close to being a test lift as you are likely to get!! It can only lift 1,200ton with the y-guy system extended, at 2.5 meters. Jibtickler is right on the money with 1000tons at 3m
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There is actually a duty chart for lifting 1200te, something i havent spotted until now. Its 100% impractical and i am very suprised that liebherr even show it.
The duty is at 0 degrees and pinned over the back. When you consider that there is 6.5m of chassis at the rear from the slew ring 2.5m isnt gonna happen!!
The minimum boom length with Y guy is 28.9m giving a minimum radius of 7m and a boom angle of 86.5 already half a degree above the maximum elevation of 86 degrees.
The hoist wires would need at least 75 falls of rope, 38 sheaves excluding any friction losses. There isnt a hook block big enough or enough rope on the drum. To achieve the block to touch grade would require 2625m of rope on the sheaves excluding back to drum. seeing as there is only 950m of rope availble is aint gonna happen!!
the 363te hook block requires 26 falls of rope.
in memory of Biscuit. dearly loved RIP 28.10.08
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MammoetMan wrote:jibtickler wrote:Mammoet man is 100% correct 1200te@2.5m which is actually 1000te at 3m. a 1000te lift is totally impossible!!!!!!!!!!! you will only ever see this crane lift a maximum of 354te @ 7m as this is the minimum radius. i have a project coming soon to lift a 320te load on a single crane and this is as close to being a test lift as you are likely to get!! It can only lift 1,200ton with the y-guy system extended, at 2.5 meters. Jibtickler is right on the money with 1000tons at 3m no. you´d probably take the TY system off a) you do not extend the boom for such a lift b) if you keep it lying on the boom it is just weight the LTM11200 is a very strong crane with high system, with jibs, with fixed extensions. at wide reach, thats where its strengh comes from. noone has a need for a machine that lifts 1000 tons at 3 meter what counts is the systems a crane can manage and the capacity at 30 meters, 50, 70, 100 etc
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nicely explained,
imagine something similar to putting the cc8800 hook block on the 11200
Why is "phonetically" spelt with a "ph"?
... It's better to be silent and thought a fool, then to speak up and remove all doubt
The complex of Newgrange was originally built between c. 3100 and 2900 BC,[2] meaning that it's aproximately 5,000 years old. According to Carbon-14 dates,[3] it is more than 500 years older than the Great Pyramid of Giza in Egypt, and predates Stonehenge by about 1,000 years.
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exactly Christian,the model number of a crane should be a more realistic figure,at a realistic distance,like X amount of tons at 50/70m
is the cc8800 rated at 1500tons at 20m?
Why is "phonetically" spelt with a "ph"?
... It's better to be silent and thought a fool, then to speak up and remove all doubt
The complex of Newgrange was originally built between c. 3100 and 2900 BC,[2] meaning that it's aproximately 5,000 years old. According to Carbon-14 dates,[3] it is more than 500 years older than the Great Pyramid of Giza in Egypt, and predates Stonehenge by about 1,000 years.
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the model number is the model number
crane buyers know what they buy. after all thats what the lift chart is for. except for a few companies that like to show off (and paint a few extra capacity tons on their cranes) its never an issue with crane owners. let the machine do the jobs it was designed and bought for, period
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Me and Thorlief still can't get over the fact that, to actually lift 1,200tons, you need 2000meters of rope.
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Does anybody know which mast is being supplied with this model, the t7 or t3.
Many thanks for any info.
flyingscot
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flyingscot wrote:Does anybody know which mast is being supplied with this model, the t7 or t3.
Many thanks for any info.
flyingscot
OK. don't worry I've worked it out DOOH Flyingscot
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MammoetMan wrote:Me and Thorlief still can't get over the fact that, to actually lift 1,200tons, you need 2000meters of rope. yeah i had to keep calculating it to make sure i hadnt made a mistake. Heres another interesting fact for the impossible 1200te lift!! 2625m of 28mm hoist rope at 398kgs/100m. Total rope weight 10.5te of hoist rope to be deducted from from the load chart to start with!! My colleague Emiel in Schiedam will perform this type of calcualtion and load deduction often when working with the PTC and MSG's i never deduct hoist rope weight from the chart when working with upto 6-7 falls.
in memory of Biscuit. dearly loved RIP 28.10.08
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Quote:So when is the 1/50 crawler version coming out?
That would make a nice tandem lift  How about next year I am still trying to save for the LTm version  Jason
NIkl Scale Models
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the crane is designed for wind turbine work, 2 to 3 mw nacelles typicaly weigh between 75 to 95 te, with heights up to 100m. the 111200 comes into its own moving between bases, 2 to 3 hrs. as opposed to 6 to 9 hrs. for a lg 1750 or a tc 2800
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