DIN Spec for hydraulics?

[rdshear]

Hello,

 

I am working on a project which calls out a thread I am not familiar with. The drawings are for a hydraulic cylinder and packing gland. The threads between the two are what appear to be a modified buttress thread.

 

The spec called out is " S800 x 24 x 45deg DIN 2781"

 

I was wondering if anyone has the specifications for this thread?

 

All I have been able to find so far is this is a buttress type thread with a 45deg back side and 0 degree pressure side. I assume the 800 is the thread diameter and the 24 is the pitch in mm. What I don't know is the depth of thread, radius at the root, standard clearances ect.

 

The only downloadable information I could find was in German and I don't want to purchase that... being that I only speak English

 

I found translated versions in the UK to purchase but they are only in printed format and since I am in the USA, I need the information sooner than they could be sent to me.

 

We are going to thread mill this job.

 

 

Thank you for any help you could provide,

 

Rick

[New Job]

Have you tried http://www.engineersedge.com/

[rdshear]

I just did a quick search there and got no results. I'm waiting for a registration response from the German website that has the download available. Then maybe I can get it and muddle my way through.

[Leandro]

May be this can help you:

Info

 

S 800 = "Sägegewinde" diam. 800mm = "Saw" thread 800mm

 

Leandro

[Leandro]

Sorry only in Türkisch.

 

Try also here

[rdshear]

Thanks Leandro,

 

The Turkish document worked out very good. I may not have understood the language, but at least numbers are universal.

 

Thanks again. I really appreciate the help.

 

Rick

[rdshear]

Leandro,

 

If you are still out there, it seems that the d=D callout on the diagram would indicate a zero clearance situation. Are there allowable tolerances on the dimensions (or assumed tolerances)? I cannot find anything about tolerances on the specification.

 

Thanks again,

 

Rick