OP
dcyrilc
Elite Member
I've noticed, since I've been reading here, that most of the posts talk about power beyond. I believe this relates to OC systems. Are most newer tractors OC/CF?
General hydraulics question
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kennyd
Advertiser
Yes, Pretty much all of the newer CUT's are OC, some BIG AG tractors use CC systems...
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OP
dcyrilc
Elite Member
What are the advantages/disadvantages of OC vs CC systems?
kennyd
Advertiser
Not to blow you off...but with my finger pecking it could take me hours to type something that still may be less than 100% accurate because I am not very familiar with CC systems.
I will Refer you to the Army Hydraulics Manual and The Principles of Hydraulics for explanations of both systems.
OP
dcyrilc
Elite Member
What I was actually wondering is if OC systems were cheaper for mass production of the smaller less expensive tractors or something similar. Basically, I was wondering if it was an economic choice or if there was a major advantage to using the OC systems in the CUTs. Not as much curious of the details, as I realize that an explaination of such would be quite lengthy. I also realize that this answer is probably mostly opinion as I don't expect to get an answer from company CO/XOs that would have actually make those decisions.
kennyd
Advertiser
I do believe the OC systems are cheaper...
OP
dcyrilc
Elite Member
That would explain the wide usage. Economics can be a great motivator for some of the things companies do, and ultimately, the bottom dollar is what determines if you stay in business.
AKKAMAAN
Veteran Member
OC= wasting energy, not operator friendly on mobile equipment (response on controlvalve depends on load pressure and actual pump flow) Takes a more skill to run a crane with 3-6 actuators simultaniusly....
CC=responds much better on controlvalve operation more independent on load pressure, waste less energy, easier to operate the above mentioned crane...
OP
dcyrilc
Elite Member
And your opinion on why most, if not all, the new CUTs use OC/CF?
AKKAMAAN
Veteran Member
Sorry I do not know what CUT is supposed to abbreviate?
Generally this is the case...
OC/CF is MUCH cheaper to manufacture, like 25% of a modern CC/CPU or LS system.....
OC trade off is poor manouverability and poor energy economy
OC/CF mainly used on cheaper equipment and/or where system dont use a lot of energy....like a hydraulic transmission......
CC/CPU-LS is used on advanced equipment wher operator use a crane (simultaniously precision manouvered actuators)
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