Splitter Blade question, Wedge or Blade??

[arniecardigan]

Wonder if your splitter is delivering its its rated 10 tons. Might be worth putting a pressure gauge in the system and calculate the actual force.

 

How would I go about that?? In simple terms please as I've never really done a great deal with hydraulics!!

[openspaceman]

How would I go about that?? In simple terms please as I've never really done a great deal with hydraulics!!

 

Buy something like this:

 

63mm Hydraulic Pressure Gauge Base Or Rear Entry Available-Free UK Delivery | eBay

 

and a piece of hose with adaptpor to fit it and a TEE piece between the pump and the load.

 

Splitting force will be pressure times area of piston

 

e.g. if ram has piston of 75mm diameter and the pressure relief is set at 200 bar then the area =PI()*(75/1000)^2/4=0.004417865m^2 times 20000000 Pascal gives a force of 88357 Newtons which is equivalent to a weight of 9tonnes acting vertically down.

[Craig.]

How would I go about that?? In simple terms please as I've never really done a great deal with hydraulics!!

 

Have a word with your local agricultural or plant engineer, or a mobile hydraulic hose firm if they can come and put their pressure gauges on your equipment.

On the splitter info plate or in the hand book it should state it`s operating pressure, it will only make the 10 ton force at that pressure.

Once you know what pressure you power pack is producing, you can go from there, the pump could be worn, or adjusted to a lower pressure, or just not made for the pressure you need.

The may be a pressure relief on the splitter again they can check and adjust this for you, don't go winding the relief valve in and hope for the best, you could risk damaging the power pack, or generally finding the weak link in you set up.

One other area you could lose pressure, is on the internal seals in the ram, but I would say that was unlikely unless the splitter was old or done massive amounts of work, or poorly looked after with bad oil, or dirt in system.

If every thing in ok, you just need a bigger splitter:laugh1:

[cornish wood burner]

How would I go about that?? In simple terms please as I've never really done a great deal with hydraulics!!

 

The pipe that provides the pressure on the splitting stroke is the one you need to fit the gauge to. I am not familiar with the machine but it should be the pipe furtherest from the wedge. I would suggest you fit a 'T' in the pipe with a gauge that will read more than your rated pressure if you know it. 4000 psi should be fine. If you know an agricultural engineer he will almost certainly have one you might be able to borrow.

The next thing you need is the ram cylinder bore. (d)

Your handbook might tell you this. Alternatively look on the shaft end of the ram and you might see the bore where the end cap is fitted. Mearure this in inches. If all else fails measure the cylinder outside diameter and subtract 1/2 inch for the wall thickness.

 

force is pressure x area

Area = 3.142 x d x d divided by 4

Gauge reading of pressure in pounds per square inch divide by 2240 to give you tons per square inch. If your gauge reads bar additionally multiply by 14.5

 

Multiply presure by your cylinder area will then give you your force.