Cylinder ID

   / Cylinder ID #11  
If you would like to come up, I would be more than happy to test them for you. As far as a testing unit goes, I'm going to try to post a pic of the one I made. However, I am technologically challenged so bear with me. My test unit that I test rebuilt cylinders on consists of an old 12 volt pump and motor unit from a small battery powered forklift, an open center single spool valve. 2 lines out go to two 7000 p.s.i. shut-off valves, for load holding. I test all cylinders to 2500 p.s.i. for 5 minutes for internal and external leakage. All of this is mounted on a 3 gallon hydraulic tank. Not the prettiest thing, but very effective.

I'm thinking you might have the 4212 nylon tubing. Go to page 21 of the link below and see if the wall thickness matches any of your sizes. Just because there may be low pressure hoses to the cylinder doesn't mean it is a low pressure cylinder. The working pressure of the cylinder is based on seal type and material.

Your Synflex tubing could be almost anything. Go to this website: Eaton Product Literature Library > Fluid Conveyance > Synflex. Go to Synflex Hose and Fittings Master Catalog. See if you can identify which Synflex hose you have. Try to find one of the hose model #'s printed on your hose, if you can read the writing on the hose.This hose gets a bad rap because it's made of plastic, but some models handle up to 10,000 p.s.i.

I'm not really a drinker anymore, but a little hard cider is my weakness.
 
   / Cylinder ID
  • Thread Starter
#12  
Good info Andy,I'll check them out further.I quit drinking too. It's been 29 months 6 days and I don't count the hours.
Larry. I am going to use these to lift the very heavy ramps on my equipment trailer.I have a 12 volt Haldex pump but I have to find out what these cylinders can handle.Pump is rated at 2000 lbs with 1/4 pipe fittings, the same size fittings as the cylinders.1inch rod on the cylinders and about 12-14 in stroke I'm guessing. I wish I knew if they were high pressure before I launch one of them.:confused:
 
   / Cylinder ID #13  
bones1 said:
Good info Andy,I'll check them out further.I quit drinking too. It's been 29 months 6 days and I don't count the hours.
Larry. I am going to use these to lift the very heavy ramps on my equipment trailer.I have a 12 volt Haldex pump but I have to find out what these cylinders can handle.Pump is rated at 2000 lbs with 1/4 pipe fittings, the same size fittings as the cylinders.1inch rod on the cylinders and about 12-14 in stroke I'm guessing. I wish I knew if they were high pressure before I launch one of them.:confused:

I quit drinking for 8 years. Now, the past 2, I can have one beer and I'm satisfied. Haven't been drunk since, and never will be again.

Even if these cylinders have low pressure seals, they look plenty stout enough to lift equipment trailer ramps. You might want to install flow restrictors as this would make it much easier on your seals. The higher the cylinder speed, the harder it is on your seals. You could even take them to a cylinder shop and they could reseal them with higher pressure seals if need be. I think I would install them and see what happens.
 
   / Cylinder ID
  • Thread Starter
#15  
If these are low pressure cylinders would this Surplus Center Item Detail be what I would need to drop the psi from 2000 to operate them without blowing them up.I don't know if the pressure is adjustable on the pump.the pump is a Haldex 1510079 or Granger #4ne18.
Link here Grainger Industrial Supply: Power Unit,12 Vdc 4NE18 I can find very little info on the pump unit.Thanks for any help.
 
   / Cylinder ID #16  
bones1 said:
If these are low pressure cylinders would this Surplus Center Item Detail be what I would need to drop the psi from 2000 to operate them without blowing them up.I don't know if the pressure is adjustable on the pump.the pump is a Haldex 1510079 or Granger #4ne18.
Link here Grainger Industrial Supply: Power Unit,12 Vdc 4NE18 I can find very little info on the pump unit.Thanks for any help.

The surplus center item is a flow control, not a pressure reducer. This would merely limit the flow, not the pressure. I think DHH has flow restricted fittings. They have a very small orifice, but it's really all the flow you need.

The worst that's going to happen if you install these is that they will leak. Then, you replace the seals with high pressure ones. Hook it up, see what happens.
 

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