TITAN XS springs

[Mark 611]

Other than AOA, is their anybody in the U.S. selling these springs for HW rifles or other manufactures Like COMETA or AA guns? 

[SpiralGroove]

Other than AOA, is their anybody in the U.S. selling these springs for HW rifles or other manufactures Like COMETA or AA guns? 

Mark,
I think I bought one from these guys years ago.
https://dlairgun.com/collections/titan-mainsprings

[Mark 611]

Thanks KIRK! I'm also looking for springs for my COMETA rifles, I see DL has them but WOW the prices for these springs is crazy! but SWEEDISH steel is probably superior to all the rest IMO

[SpiralGroove]

Thanks KIRK! I'm also looking for springs for my COMETA rifles, I see DL has them but WOW the prices for these springs is crazy! but SWEEDISH steel is probably superior to all the rest IMO

Upon a second look, I believe they're located in Canada --- hence prices reflect the currency difference.  They cost less in USD .

[Mark 611]

Air gun Spares has them cheaper than any 1 else shipped, about 23 USD to the door!

[tjk]

Mark, TWChambers in the UK sells the Titan and Ox mainsprings. Prices and shipping are reasonable and delivery is rather prompt.

[Bayman]

Thanks KIRK! I'm also looking for springs for my COMETA rifles, I see DL has them but WOW the prices for these springs is crazy! but SWEEDISH steel is probably superior to all the rest IMO

Many years a volvo mechanic I can attest to the quality of Swedish steel. It's certainly a cut above. I took apart a P1800 with almost 280k miles on it and it had no cylinder ridge and the still had a faint hone cross hatch. Typically an 85k mile Chevrolet 350 would have long ago worn out the hone cross hatch and have a good start on a cylinder ridge. The Swedish steel reputation is tor real reason.

[Yogi]

Thanks KIRK! I'm also looking for springs for my COMETA rifles, I see DL has them but WOW the prices for these springs is crazy! but SWEEDISH steel is probably superior to all the rest IMO

Many years a volvo mechanic I can attest to the quality of Swedish steel. It's certainly a cut above. I took apart a P1800 with almost 280k miles on it and it had no cylinder ridge and the still had a faint hone cross hatch. Typically an 85k mile Chevrolet 350 would have long ago worn out the hone cross hatch and have a good start on a cylinder ridge. The Swedish steel reputation is tor real reason.

Thanks Ron,

That explains why just about any muscle car I look at says, replacement engine.

-Y

[KWK]

Really has more to do with modern fuel metering and ignition management. Many manufacturers build engines that go 200 or 300,000 mi. now.

[Yogi]

Really has more to do with modern fuel metering and ignition management. Many manufacturers build engines that go 200 or 300,000 mi. now.

Toyota.

-Y

[splitbeing]

Vortek.

[KWK]

Really has more to do with modern fuel metering and ignition management. Many manufacturers build engines that go 200 or 300,000 mi. now.

Toyota.

-Y

I was in the market for another work van last year. I was surprised how many Ford and Chevy vans on the market with well over 200,000. My former Chevy Express had 165,000 and ran great but the body was getting too bad to repair again. I bought a nice Ford w/ 140,000 and not even concerned about the engine.


Titan springs are so popular in UK I thought about using them in some of my guns. Good to see some options on where to buy

[Mark 611]

These springs have been around for a long time, I have never tried them, I have some spring guns that replacement springs are hard to find here in the U.S. I purchased 2 springs for my COMETA 220c rifles, this will give me an opportunity to see what their all about, I found them for a place called the Country store in the U.K. cost on them was about $55 dollars to the door, 

[HectorMedina]

After using them almost exclusively for the last 7 years, I am curious as to what you will find.

BTW, John Knibbs is the "Manufacturer" and they own "The Country Store" which also operates under "Airgun Spares"

Have never used the ones for the Cometa, mostly their #1 and #4 for DIANAS, and the #7, #8, and #10 for smaller guns, like HW's and old Walthers. I particularly like the #1 in my LGU with the CCA/ULP, virtually no pre-compression, and very stable over thousands of rounds.

I generally go for the widest/fattest/largest OD spring that will fit into the piston once the rotary expansion is taken into account. Because I want long term stability AND longevity, in that sense, Maccari has some great springs that even outperform some of the Titan's but at the cost of smaller OD and therefore, shorter lives.
Vortek has been improving on the material they use and new springs are substantially different from the older ones. They do require some "strain tempering" though to have reasonable lives.

Some customers ask for power, some ask for stability and / or long life. As long as they take informed decisions, I am good with whatever they want.

Just one precaution: IF you need to cut, forge and close one of these springs, do the forging in a VENTILATED place.
The coating they use, while VERY good for the purpose, does fume and smoke some. Nothing to die for, just be aware.

HTH, keep us posted!





HM

[Yogi]

Hector,

Would sleeving the piston help the longevity of a smaller O.D. spring?
My thought being that upon release, it would have less "wiggle room".

-Yogi

[Mark 611]

Thanks Hector! much appreciated!

[SpiralGroove]

Hector,
Good background information .

[HectorMedina]

Hector,

Would sleeving the piston help the longevity of a smaller O.D. spring?
My thought being that upon release, it would have less "wiggle room".

-Yogi

There is no physics to support this.

Springs fail because the strain (the stress / force applied to a given section) accumulates and then exceeds certain given values that are dependent on the steel's composition and heat treatment.

The strain inside the wire of a spring is related to the OD by the CUBE (third power), so increasing the OD will REDUCE the strain by the cube of that decrease.
Let's say you go from an OD of 0.860" to an OD of 0.827", and for simplicity, let's say that all other parameters (steel, pitch, WD, etc), remain constant, then smaller OD spring wire would experience a strain that is related to the larger OD spring wire by the following proportion:

(0.890/0.827)³= 1.25

In short, reducing the OD by 7% increases the strain by 25%

And that is why I try to go with the largest OD I can.

Now, there are reasons to "disobey" that suggestion, and one is that springs are not designed in vacuum. Meaning that they all need a PURPOSE to begin with. And so, certain restrictions are placed upon the designer to achieve certain energy level within a given "envelope".
Under those conditions, you may find that an extra long "pitch" can help to achieve higher energies in a short stroke, though it needs a longer housing (to reduce the duty cycle and bring back the endurance of the spring).

Now as far as the "wiggle room" that should be taken care of by the INSIDE GUIDE. Yes springs expand a little when they are compressed, so the guides need to be designed and executed so that they "grab" the spring in the right places at the right times.
IF there is too much "wiggle room", the spring will "kink" because nature abhors vacuum's (VACUA?) and so the spring will fill the empty spaces by kinking. Now, those "kinks" may even be beneficial to the smoothness of the cycle, even if they look horrible and detract from the efficiency.

Springs are more an art than a science because even though there are tons of scientific data, the number of combinations that can achieve roughly the same results is staggering.
AND you need to add that wires are made in certain materials ONLY in certain diameters. AND, on top of that, some of the better materials are not available even in all the conventional diameters.
So, on top of the technical restrictions you also need to account for the economical side of the equation.

Keep well and shoot straight!




HM

[Mark 611]

I got my order from AIRGUN SPARES, the 2 TITAN XS springs I ordered are full power springs! but on comparison between the factory and the TITAN, the factory has a .120dia wire and the TITAN is a .115dia wire, so I'm hoping the difference in the steel is why the TITAN has a smaller wire size? other than that, these are very nice springs! so nice I ordered 4 more of them