Where do you source Hydraulic cylinders?

[RobertEH]

I picked up a used Brush-hog back blade (70-07). I want to add a Hydraulic cylinder to the blade so I can hook it up to one of the remotes on my LS M235HE.

Where do folks go to buy cylinders? (I am a new tractor owner so I don't have a lot of resources bookmarked yet!)

I did try my dealer and he said he was not able to locate one.

Photo below of what I am trying to do (min and max lengths are noted - and I know I will need to drop the pins and remove the struts on the right side!)

 

[RobertEH]

Also, I assume I would want something like 15-25 give or take an inch so that it is not slamming up against the stops on the attachment when fully extended or retracted.

 

[Fuddyduddy1952]

Surplus Center I've ordered from.

 

[LD1]

Surplus center or bailey's Bailey Intl. - Hydraulic Cylinders, Valves, Pumps and Components. Over 40 Years of Experience.

Make sure you go with at least a 3" diameter bore. Bigger is better

 

[dstig1]

+1 Surplus Center or Baileys

 

[CalG]

Both sources suggested in the posts above are fine.

But know this, You will NEVER find a cylinder that matches those retracted/extended numbers.
(13/27) end fittings take up room.

Just settle for the best match.

My blade has a screw type adjuster. , works for all I need, though at times I swap sides to better match big offsets.

 

[RobertEH]

Greatly appreciated!

I figured I would not locate the perfect size. I am guessing that if I am limited to a ten inch stroke, something in the 15 to 16 inch total retracted length should work.

Some seem to be rated for PSI (e.g. 3000 psi). I don't see PSI listed on my tractor as a specification. Any thoughts on how to figure out a minimum PSI rating for a hydraulic system?

 

[BeezFun]

Most tractors run operate about 2500psi. If you can't find data online, look at the hoses. They generally have a label on them and are probably 3000psi. That would confirm you can get a 3000 psi cylinder. Depending what you're using the blade for you may see some pressure spikes. You may need to look at a cross over relief valve depending on your application.

 

[LD1]

Greatly appreciated!

I figured I would not locate the perfect size. I am guessing that if I am limited to a ten inch stroke, something in the 15 to 16 inch total retracted length should work.

Some seem to be rated for PSI (e.g. 3000 psi). I don't see PSI listed on my tractor as a specification. Any thoughts on how to figure out a minimum PSI rating for a hydraulic system?

Higher the better for psi. Your tractors pump won't over pressurize it....but the tractive force of the tractor acting upon the cylinder with the leverage of the blade. Larger diameter and higher rating keeps the imposed pressure on the system down

 

[Fuddyduddy1952]

Handiest thing is a hydraulic top link. So easy now for back blade angle, bush hog, etc.

 

[RobertEH]

Thanks both for the info on the PSI. I will look closer at the hoses - did not see a pressure rating in the quick look I did initially.

I added a top and side link Hydraulics to my 3 pt last month. Game changer!!

 

[CalG]

Thanks both for the info on the PSI. I will look closer at the hoses - did not see a pressure rating in the quick look I did initially.

I added a top and side link Hydraulics to my 3 pt last month. Game changer!!

A rear blade needs the high pressure hoses/ fittings and cylinders.
When working, the sectional control valve isolates "system pressure" from working pressure. there can be a dramatic difference between them. Many front snow plow blades have an over pressure cross over valve for this reason.

Things go south quickly when a solid object is encountered.

You might look into ssingle acting snow plow cylinders. They are a dime a dozen, and can be made to work.

 

[LD1]

A rear blade needs the high pressure hoses/ fittings and cylinders.
When working, the sectional control valve isolates "system pressure" from working pressure. there can be a dramatic difference between them. Many front snow plow blades have an over pressure cross over valve for this reason.

Things go south quickly when a solid object is encountered.

You might look into ssingle acting snow plow cylinders. They are a dime a dozen, and can be made to work.

Snowplow cylinders won't work on any real plade behind a tractor. Just ain't big enough to hold the pressure with the crossover attached.

For a small 20hp/2000 pound compact tractor....and a 250# blade.....sure. but those don't do real dirt work anyway

 

[RobertEH]

A rear blade needs the high pressure hoses/ fittings and cylinders.
When working, the sectional control valve isolates "system pressure" from working pressure. there can be a dramatic difference between them. Many front snow plow blades have an over pressure cross over valve for this reason.

Things go south quickly when a solid object is encountered.

You might look into ssingle acting snow plow cylinders. They are a dime a dozen, and can be made to work.

Can you quantify "high pressure"? Is that 3K PSI?

 

[ROUSTABOUT]

Tractor Supply, Atwood's, other farm stores have them.

 

[Jofang]

I picked up a used Brush-hog back blade (70-07). I want to add a Hydraulic cylinder to the blade so I can hook it up to one of the remotes on my LS M235HE.

Where do folks go to buy cylinders? (I am a new tractor owner so I don't have a lot of resources bookmarked yet!)

I did try my dealer and he said he was not able to locate one.

Photo below of what I am trying to do (min and max lengths are noted - and I know I will need to drop the pins and remove the struts on the right side!)

View attachment 759690

Be very careful when fitting an hydraulic cylinder without calculating the force exerted by the cylinder, as this could be very dangerous. At 3000 psi a 3 inch cylinder produces over 21,000 pounds force, almost 10 tons on the link pins.

 

[LD1]

Be very careful when fitting an hydraulic cylinder without calculating the force exerted by the cylinder, as this could be very dangerous. At 3000 psi a 3 inch cylinder produces over 21,000 pounds force, almost 10 tons on the link pins.

The bigger danger is the leverage of the blade acting upon the cylinder and blowing a hose.

Not sure what "link" pins you are referencing that are gonna see 10 tons....the ONLY pins thats gonna see that force are the pins attaching the cylinder....and the clevis's on a cylinder are sized appropriately for its force.

Using your logic, one would be inclined to grossly undersize their cylinder for fear of whatever "pins" you are talking about having too much force. Then they gonna wonder why they keep blowing hoses with a 40hp tractor and a 1-1/2" angle cylinder