Titan Spring size guide

Discussion in 'Piston & Spring' started by RobF, May 13, 2017.

  1. RobF

    RobF Administrator Staff Member

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    Model Outer(mm) Inner (mm) Thickness (mm) No. Coils (mm) Length (mm)
    1
    2
    3 No. 1 21 14.5 3.25 31 280
    4 No. 2 22.7 15.5 3.65 30 291
    5 No. 3 20.8 14.73 3.26 34 304
    6 No. 4 22.62 15.64 3.65 28 252
    7 No. 5 19 13.19 3 32 290
    8 No. 6 19.7 13.3 2.92 39 341
    9 No. 7 20 13.8 3.3 30 255
    10 No. 8 20 13.8 3.3 34 295
    11 No. 9 21 14.75 3.3 27 280
    12 No. 10 21 14.8 3.1 27 230
    13 No. 11 18.8 12.8 3 31 230
    14 No. 12 18.9 12.6 2.9 36 295
    15 No.13 19.4 13 3.1 39 340
    16
    17 No.14 22.7 15.4 4.12 37 356
    18
    19 No.15 17.53 12.1 3 33 254
    20 Hatsan 19.55 13.4 3.0 37 310
    21
    22 5/25 12.5 9.5 1.6 28 240
     
  2. Nick G

    Nick G Active Member

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    I like this "anything bouncy" is my thing.
    Trying to find a spring that is similar in size to the No 11 & 12 but with a slightly smaller guage 2.8 ? I have tried a diana spring at 2.7 and its too soft for my requirements ,
     
    Last edited: May 13, 2017
  3. hmangphilly

    hmangphilly The Doctor

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    if you can't find the thinner gauge Nick, .......... a greater number of coils for the same free length would be softer .
    ie

    a tighter wind but same length :)
     
  4. RobF

    RobF Administrator Staff Member

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    Need to get on this spring rate thing... got any lumps of metal we can grind down Phil?
     
  5. imorik

    imorik Member

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    Sizes are wrong on some of the springs ! I/D + (wire thicknes x 2) should = O/D, or am I missing something :eek:
     
  6. RobF

    RobF Administrator Staff Member

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  7. blacklab

    blacklab Member

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    tp size

    I thought it was the lgu that was affected with tp issues
     
  8. panaman

    panaman New Member

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    From my experience, most TITAN mainsprings have the same wire thickness. Differences are concerning mostly the I.D. & O.D.
    Titan no 7 and no 8 will fit on many FT 12ftlbs Airguns.
    I measure the following
    No 8 I.D. 13,7 mm (hw and some diana spring guides will fit)
    No7 I.D. 13,4- 13,5 mm (hw and Diana spring guides will be too tight.)

    So the differences between no7 & no8 is not just in length and no of coils.
    Note also that the hw97-77 spring guide is not cylindrical but conical. Initial O.D. around 13.5mm final O.D. around 13.8mm
     
  9. hmangphilly

    hmangphilly The Doctor

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    That's interesting about the 97 /77 guide .

    I assume the thin end is at the front ? .........wonder why they do that ?.....................seems a lot of effort , when you could just swage an old washer onto a piece of tube ....( yeah facetious ain't I ? )

    ooohh might have one of those here .......................what do they look like ?
     
  10. panaman

    panaman New Member

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  11. RobF

    RobF Administrator Staff Member

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    Updated below (i'll do the top post later)

    NO- OD - ID - Wire- Coils- Length

    01- 21.0- 14.5- 3.2- 31- 280
    02- 22.7- 15.5- 3.6- 30- 291
    03- 20.8- 14.7- 3.2- 34- 304
    04- 22.6- 15.6- 3.6- 28- 252
    05- 19.0- 13.1- 3.0- 32- 290
    06- 19.7- 13.3- 2.9- 39- 341
    07- 20.0- 13.8- 3.3- 30- 255
    08- 20.0- 13.8- 3.3- 34- 295
    09- 21.0- 14.7- 3.3- 27- 280
    10- 21.0- 14.8- 3.1- 27- 230
    11- 18.8- 12.8- 3.0- 31- 230
    12- 18.9- 12.6- 2.9- 36- 295
    13- 19.4- 13.0- 3.1- 39- 340
    14- 22.7- 15.4- 3.6- 37- 358
    15- 17.5- 12.1- 2.3- 33- 254

    All measurement in millimeters.

    Thanks to Pete on AGBBS for sourcing the data.
     

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