best material to make a sleeve for a striker / hammer

Forums PCP Airguns best material to make a sleeve for a striker / hammer

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    Hubertus
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    Hello,

    do you guys know what is the best material to make a kind of sleeve for a hammer / striker ? i want to reduce the noise level.

    is it peek ? polycarbonat ?

    its for a low powered sub 12ftp rifle. the muzzle report is mouse fart quiet with a moderator but the noise level from the action is now annoying!

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    Metalmaniac
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    Delrin is a very strong machinable plastic like materail but much stronger than plastic. It is very slick and wear resistant. It is used to make gears and all kinds of parts used in industry. MM

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    BigTinBoat
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    One issue to be aware of if you use Delrin is that the hammer will expand and contract a good bit with temperature changes so you may experiences with the hammer "sticking" at times.

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    ackuric
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    BigTinBoat

    One issue to be aware of if you use Delrin is that the hammer will expand and contract a good bit with temperature changes so you may experiences with the hammer "sticking" at times.

     

    If the striker is separate from the hammer then this is a non-issue provided you  only change the striker material. I personally used compressed leather on a  60+ fpe rifle as my striker. Quietest material you'll come across IMO. I've tried PEEK and noticed a very vague difference going to it from metal.

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    BigTinBoat
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    ackuric

    BigTinBoat

    One issue to be aware of if you use Delrin is that the hammer will expand and contract a good bit with temperature changes so you may experiences with the hammer "sticking" at times.

     

    If the striker is separate from the hammer then this is a non-issue provided you  only change the striker material. I personally used compressed leather on a  60+ fpe rifle as my striker. Quietest material you'll come across IMO. I've tried PEEK and noticed a very vague difference going to it from metal.

    Understood, but based on OP saying "sleeve" I was thinking he wanted something on the outside of the hammer, not the inside. I was thinking the metal hammer "sliding" in the metal tube. I would have used insert instead of sleeve if I meant a "striker" within the hammer.

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    BlackICE
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    I would make the assumption that putting something between the hammer and valve stem would require more hammer energy. Because of materials used will be less elastic in collision, leather being worse than Delran

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    dan_house
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    motorhead made me a Delrin (iirc) hammer…like 26 grams compared to the 70 soemthing of the factory hammer…….

     

     

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    STO
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    A bunch of people have jumped in here with suggestions, one of which may be the right solution making this comment moot, however I'm a little vague on what exactly you're referring to. In fact I'm not sure what rifle we're even talking about. Further descriptions, specifications, and maybe even a picture or two could probably increase the quality/usefulness/accuracy of the responses we can give. 

     

    Just my 2c. :) 

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    Hubertus
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    Well, i looked again into the action but there is not enough space to add a sleeve on the striker pin. that was my first idea to reduce the noise when hitting the valve!

    the weight of this hammer is 60g / 2 ounces

    regulator is set to around 1000psi and i got a lot of hammerbounce

    i want to keep the power sub12ftp and a much lighter hammer would be great for this kind of setup. 

     

     

     

    the regulator got no adjustment and i dont know how to set the reg up higher because i think that would help with the hammer bounce. i cant find any documentary about the belville washers stacks. it seems to be a secret!!

    would you all make a lighter hammer from delrin ?

    btw its a walther rotek / rotex in .177 

     

     

    • This reply was modified 2 months ago by Hubertus.
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    STO
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    So the sound issue is from the strike of the hammer on the valve stem? I would say I am definitely not an expert here, however inserting just a little material in between the hammer and valve faces, and potentially increasing spring force, might both reduce your hammer bounce and your sound level. I think there are a few suggestions above to this effect. :) 

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