Hydraulic pump specs Jinma 354

[longharbor]

Hmm, deep waters here. Too many addons and complications for a simple soul, which leads me toward a store bought self powered unit where somebody else has figured out the tricky bits. I am familiar with the limitations of pressure relief valves on Jinma tractors - picture an oil geyser when the steering wheel is turned hard!

 

[greg_g]

To complicate things, the CBN-E320 isn't producing 11 gpm until engine revs close in on 2200. Think fuel costs. I'd go bigger, so you can get your 11 gpm without running so much fuel through the engine. I believe the E400 and E532 will bolt on as well. Perhaps others. But if you really want to stay with the single pump concept, the E400 will give you well over 11 gpm while saving a few hundred engine RPMs at the same time.
Model:CBN---E400
Rate of flow:8-63(m3/h)
Pressure:16-20Mpa
Material:cast aluminium
Rotate speed:2000-2500

The E532 may save even more revs:
Model:CBN---E532
Rate of flow:64(m3/h)
Pressure:16(Mpa)
Material:cast aluminium
Rotate speed:2000
Efficiency:92%

//greg//

 

[sd455dan]

Hmm, deep waters here. Too many addons and complications for a simple soul, which leads me toward a store bought self powered unit

Yeah - that's the way a few of us have gone.
i bought a 25 ton stand alone MTD for $ 1070 a few years ago. At the time i could not find ANY 3 point mounted versions that were price competitive
and that frees up the tractor (s) for moving or carrying large pieces to be split.

No regrets , but would still like to increase the FEL speed on the Rhino with one of those higher output cbn's



Also Thanks for that info Greg, do you know if the 400 series is a larger diameter pump- the 320 gets its increased volume from being a longer pump than say a 312
just wondering if the 400 series will bolt up in the same place as a 300 series??

 

[erj]

I am not a hydraulic expert, but some time ago I read that it was important not to oversize a pump related to hydraulic tank capacity. Had to do with allowing the fluid to cool, etc. and made a lot of sense to me.
If this is true, are we recommending an 11gpm pump for a tractor that has too small of a hydraulic tank?

 

[Diamondpilot]

I really think you will be fine. I just split 5 face cords of Hedge and Hackberry yesterday. It never missed a beat. Set the tractor at 1300 rpm and worked for 6 hours straight. I only used 3 gallons of fuel. Remember, this is using a 4x24 cylinder behind my Jinma 284.

It's plenty fast for one guy. I can't keep up with the machine. The hydraulic fluid got warm to the touch but never hot.

Chris

 

[greg_g]

Sorry, I have no info on either pump beyond the specs already posted. They have the same bolt pattern, and it's quite likely the 4xx has a larger outside diameter. Not positive, but it's "supposed to fit". Same with the 5xx, except the attachment plate is offset so the pump housing doesn't touch the engine block.

//greg//