Thanks!

Glad to hear it! We're trying our best to make excellent training. Let me know if there's anything you'd like to see us do. Take care!

Thanks! Any suggestions for future videos?

LunchBox Sessions Toque,power control on axial piston pumps.Shoulld be interesting

Hell yeah!

Counter balance valve close the port so load will not come down

If the relief valve is leaking, it would increase the sump oil temperature.

Mandar Kulkarni contact on zubin@targethyd.com Maybe I can help if it is pending

yes.... in every car jack there is a CBV

sorry to be so offtopic but does anyone know of a trick to get back into an instagram account? I somehow forgot my login password. I would appreciate any tips you can offer me.

@Axel Bishop Instablaster =)

@Calvin Ruben Thanks for your reply. I found the site on google and im waiting for the hacking stuff atm. Seems to take a while so I will reply here later when my account password hopefully is recovered.

@Calvin Ruben it did the trick and I finally got access to my account again. Im so happy:D Thank you so much you really help me out!

@Axel Bishop glad I could help xD

It's the maximum load it holds without pressure at external pilot line. If you have a 4,5:1 pilot ratio it will start lowering the load at a pilot pressure of approximately 51 bars

Because, they forgot to mention about the pressure intensification on the rod side of the cylinder. That might be catastrophic.

@@gemiciengin , no, the Counterbalance valve is also a "relief" valve. It is internally piloted, as well as externally piloted. It prevents over-pressurization from hydraulic , mechanical or thermal intensification. A PO Check would not have the relief function... that could be catastrophic. The external pilot is at a ratio, which is likely for another session.

An internally piloted counterbalance valve (in the rod end, as it is in this case) continually exerts back pressure, even at the limits of travel, and continually opposes the pressure induced force of extension, thereby limiting the maximun extension force. This is suitable for load handling applications in which the load must be manipulated yet not damaged. When both externally and internally piloted counterbalance valve is used, the function of the internal pilot on the rod end is to provide back pressure supporting the load while it descends, however upon reaching the limits of travel or being otherwise restricted, the external pilot on the cap end overrides the internal pilot and fully opens the counterbalance valve. Back pressure is absent and the hydraulic system can exert full pressure induced force. The combined effect of both the weight and the full unopposed force of the hydraulic system can be put to use for a press, stamp or molding application. All this information I got from Jim Pytel (BigBadTech Channel) here on youtube. Hope it's clear

Its clear now..... Thanks for your crystal clear explanation

Our in-house team of animators and programmers build these working simulations from scratch. They draw all the graphics individually, and write all the logic code that powers the system behaviour and interactivity. That lets us be very custom with how things look and work, so we can make sure we're getting exactly the result we need for each project.

As a commissioning engineer of more complex machinery I was asking myself the same question. I was lazy enough to ask the designer, my best guess is for protecting the cylinder/motor in case of overpressure generated by some (too) heavy load or some uncontrolled pull of cylinder. It efectively adds up to to the pilot ratio obviosly. So if you have 1:4.5 pilot ratio and spring setting of 330 Bar, you'll need at least 60 Bar in above line to open it. This is of course in case you don't have any load and ideal cylinder. In real life cylinder you'll have to account for some losses, generated by piston friction dependant on flow and inertia, in smaller portion. Pressure setting of the spring should be higher than maximum designed load generated pressure of course

Lovro Šipovac thanks for that, much appreciated.

No probs. Your inquiry made me a bit curious so I googled and found a great article that expains your question and much much more! www.hydraulicspneumatics.com/other-technologies/book-2-chapter-5-counterbalance-valve-circuits

If I understood the question correctly, even if it had enough pressure to open the pilot line, both sides would be with the same pressure, so there would have no flow.

An internally piloted counterbalance valve (in the rod end, as it is in this case) continually exerts back pressure, even at the limits of travel, and continually opposes the pressure induced force of extension, thereby limiting the maximun extension force. The function of the internal pilot on the rod end is to provide back pressure supporting the load while it descends

follow

+Michael Zajac - The pressure colors are relative. In this system, High Pressure is equal to, or slightly below, the setting of the relief valve.

Thank you for message, Teacher. I'm collage, I was learned my lesson that Fluid Power.

I Want an animated video of boom luffing in a reclaimer. Searched everywhere but couldn't find anything.

I am currently having trouble clarifying your doubt sir, it seems as though my computer is currently facing adversities in the running portion, if you would like to clarify this doubt, perhaps hit on run, oops i mean hit on replay and watch just a few more times sir, eventually all will become clear and you will be able to ride the hydraulic waves to the heavens, taking in all the beautiful sights of the oil ocean, seeing oil whales and oil dolphins and oil fish, it's a really beautiful sight to see. XD

I'm glad you asked. We make the software ourselves, and you can read more about it on our website: www.cdiginc.com/live-schematics

does the company sale that CD live schematic for study purpose ?

No, but if you register for LunchBox Sessions, you'll be able to use our media for study purposes as soon as the site is open for the public (very soon).

nice, i hope we can have more schematics soon as well. Thats help technicans alot