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BARSKA 8-32x50 IR AO...
8-32x variable magnification with large 50mm objective lens in a 100%... More |
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BARSKA 4-16x50 IR AO...
4-16x variable magnification with large 50mm objective lens in a 100%... More |
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BARSKA 6-24x50 IR AO...
6-24x variable magnification with large 50mm objective lens in a 100%... More |
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BARSKA 8-32x50 IR AO...
8-32x variable magnification with large 50mm objective lens in a 100%... More |
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This entry is from Wikipedia,the leading user-contributed encyclopedia.It may not have been reviewed by professional editors(See full disclaimer)
- 1.Excavator - Wikipedia, the free encyclopedia
- Excavators are usually employed together with loaders and bulldozers. ... Excavators in all Regions of the World. Construction Equipment magazine & website ...
- http://en.wikipedia.org/wiki/E
xcavator
- 2.John Deere Excavator Selection - compact, midsize and large excavators ...
- ... specs, build your own excavator, and compare John Deere excavators with competitive excavators ... Excavators. 0 - 6 Metric Tons. 6 - 40 Metric Tons. 40-80 ...
- http://www.deere.com/en_US/cfd
/construction/deere_const/exca vators/deere_excavator_selecti on.html
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How Efficient are Bucket Wheel Bucket wheel excavators are
used extensively around europe
to remove overburden and
extract lignite for power
stations.
The largest offer 240,000
tonnes per day production.
But just how efficient are
they over a year.
What are the realistic yearly
production rates.
I am curious as this is a lot
for one machine to actually
handle.
Is there any where I can
check?
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Efficient? If you mean how much 'down time' could be expected over a year, then I wouldn't think they would be much different to any other large excavator, which really isn't a lot. I drove large excavators (drag lines, face shovels etc.) on opencast coal sites etc. more than 30 years ago, and each machine had a 'banksman' whose main job was to grease all points at the appropriate interval. These varied from 2, 4, 8 16 hour intervals, up to (uncommonly) monthly intervals, A lot of this, no doubt, is now done automatically, but the principal will be the same, and as with ANY piece of machinary, as long as they are 'looked after' they will give excellent service. Google for "Bucket Wheel Excavators" Lots of sites |
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Are earth excavators permitted Normally Excavators are used
for digging earth. But
sometimes the operators use
the bucket to lift materials .
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Typically no. It's a matter of safety. The object being carried can spill out of the bucket and injure someone. For heavy loads you use a forklift and the objects should be securely held on a pallet. For odd shaped objects a sling may be used but it must be inspected for nicks and tears prior to every use. |
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How much do union construction How much do union construction
workers make or union
excavators etc..?
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This answer depends on where that employee is working. Here in the Bay Area our Union employees make more per hour than say a Union worker in the Midwest makes. If you call the different Unions they can let you know what their pay scale is. You can also look at "prevailing wage" for different areas. http://www.dot.ca.gov/hq/const ruc/ |
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