Re: [DML] New door struts - anyone interested?

Rod,

That is an excellent question. I will make sure to pass it on to the manufacturer and I will get back to you.

What I can guess on my own is that the best temperature for storage would probably be as cold as possible. Since the struts are filled with nitrogen at a tremendous pressure (somewhere around 180 bar / 2600 PSI) no matter what you will do the gas will slowly leak out. When you lower the temperature the pressure drops as well and that should slow down the leak. I don’t know by how much but I’m sure it’s not going to be much. I would try keeping them in a sealed moisture preventing bag in a freezer.

I think the best way to store them would be in a container pressurized to equal the internal pressure of the strut. Keep them fully extended (lower pressure), piston down to keep the seals lubricated and you could easily store them for a long long time.

From my experience I would say that it makes no sense to store them. Get as many as you need right now and I’ll try to have them made every once in a while. All gas struts will go bad over time... unless you store them with equalized pressure.

I’ll get back to you...

Greetings from Poland!
Tom Niemczewski
Vin 6149 plus 2418, 3633, 5030, 16473, 17086
Google earth: 52°25'17.66"N, 21° 1'58.40"E
www.deloreana.com

From: Rod Dillman

Sent: Sunday, April 13, 2014 5:54 PM

To: dmcnews@xxxxxxxxxxxxxxx

Subject: Re: [DML] New door struts - anyone interested?

Tom,

Do you have any idea of the shelf life of new struts? Assuming they are stored in a controlled temperature environment is there any data as to how long they can remain "new".

Thanks,

Rod

10921

Sent from my iPad

On Apr 9, 2014, at 4:52 PM, "Tom" <dmctom@xxxxxxxxx> wrote:

Hello everyone,
I have come across a company that manufactures high performance and high quality gas struts. I am talking with them about the possibility of manufacturing a small batch of new door struts for us. The details are:
The strut will be the same length both collapsed and extended as the original Stabilus struts. They will have full dampening at the end of stroke to prevent door bounce. They will have the same force as original struts - no sagging doors. They have temperature compensation built in which means that cold weather should not affect the force as much as it does in the case of regular gas struts. This doesn't mean that it will maintain the same opening force in extremely cold weather but the effect should be minimized. They come with full 2 year replacement warranty against defects in manufacturing and materials.
We can have the struts in two flavors:
1. Powder coated black cylinder with black nitrate coated piston.
2. Brushed 304 stainless cylinder with chrome coated piston.

If we can get enough people interested the prices will be:
For black/black gas struts: $30 each or $50 for a set of two with free shipping
For 304/chrome gas struts: $80 each or $150 for a set of two with free shipping

Please let me know if this idea is worth pursuing. In my opinion the price is very good and the full 2 year replacement warranty is a very good insurance.

Anyone interested?

Greetings from Poland!
Tom Niemczewski
Vin 6149 plus 2418, 3633, 5030, 16473, 17086
Google earth: 52°25'17.66"N, 21° 1'58.40"E
www.deloreana.com