Login    Register
User Information
Username:
Password:
We are a free and open
community, all are welcome.
Click here to Register
Sponsored
Who is online

In total there are 85 users online :: 4 registered, 0 hidden and 81 guests


Most users ever online was 155 on Mon Aug 15, 2016 1:40 am

Registered users: Bing [Bot], Google [Bot], Google Adsense [Bot], Yahoo [Bot] based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

Suppressor packing

A place to ask general spud cannon related questions.
Sponsored 
  • Author
    Message

Suppressor packing

Unread postAuthor: warhead052 » Thu Mar 01, 2012 9:39 pm

I need some ideas for the packing in a suppressor. I made the basic type, just a tube with 2 holes drilled in it for the ammo to go through, with a larger tube on the outside sealed at both ends. Works pretty well the way it is now, but I would like to make it a bit quieter. Any ideas on what would work?
  • 0


warhead052
Major General
Major General
 
Posts: 1769
Joined: Mon Mar 21, 2011 5:41 pm
Reputation: 0

Unread postAuthor: Technician1002 » Thu Mar 01, 2012 9:49 pm

Removal of sound energy is the requirement. If it is for a traditional firearm, you need to look elsewhere for advise. For an air cannon, the damping material they use in Acoustic Suspension speakers should work fine with a large volume suppressor. I'm not sure what would be compatible with a combustion cannon that would work well other than some sort of baffle plates inside to cool the combustion gases that enter and add friction to the flow within the suppressor. Traditional firearms are too high energy to use these home made solutions. They would be damaged in use.
  • 0

User avatar
Technician1002
Chief of Staff
Chief of Staff
 
Posts: 5190
Joined: Sat Apr 04, 2009 11:10 am
Reputation: 14

Unread postAuthor: Gippeto » Thu Mar 01, 2012 10:07 pm

Might have a look at the parts diagrams for shrouded rifles...the Benjamin Marauder, Air Arms S400, FX Monsoon and Air Force Talon SS come to mind.

Have fired the AA...even set at ~30ftlbs it's bloody quiet....a LOT quieter than any of my pcps. 8)

I'm sure Keptin Jack Silence will be along soon. :wink:


Edit:

http://www.spudfiles.com/forums/suppres ... 18108.html
  • 0

"It could be that the purpose of your life is to serve as a warning to others" – unknown

Liberalism is a mental disorder, reality is it's cure.
User avatar
Gippeto
Donating Member
Donating Member
 
Posts: 2393
Joined: Sat Jan 19, 2008 10:14 am
Location: The Great White North...Canada eh!
Reputation: 11

Unread postAuthor: warhead052 » Thu Mar 01, 2012 10:22 pm

Ok, thanks for the info guys!
  • 0


warhead052
Major General
Major General
 
Posts: 1769
Joined: Mon Mar 21, 2011 5:41 pm
Reputation: 0

Unread postAuthor: Zeus » Thu Mar 01, 2012 11:59 pm

Packing can be fairly dense for a pneumatic, you're only reducing the bang to a whoosh.

Hybrids and firearms have to cool the gases as well, so 00 steel wool with white lithium grease is a good choice. Make sure the internal volume of the silencer is fairly close to the volume of the gas inside the chamber at STP for better performance.

Most importantly, make sure the baffles are tight, consider using a fairly weak material and shoot through it for a good fit.
  • 0

/sarcasm, /hyperbole
User avatar
Zeus
Major General
Major General
 
Posts: 1422
Joined: Tue Oct 27, 2009 7:34 pm
Location: 'Straya, C*nt
Reputation: 2

Unread postAuthor: jackssmirkingrevenge » Fri Mar 02, 2012 12:55 am

Gippeto wrote:I'm sure Keptin Jack Silence will be along soon. :wink:


Image

Might have a look at the parts diagrams for shrouded rifles...the Benjamin Marauder, Air Arms S400, FX Monsoon and Air Force Talon SS come to mind.

Have fired the AA...even set at ~30ftlbs it's bloody quiet....a LOT quieter than any of my pcps. 8)


You don't know silence until you've tried a Daystate PCP, because there's no mechanical noise either, solenoid hammer :D Set to 12-16 ft/lbs when you fire my Mk.3, if there wasn't a hole in the target you would think it didn't fire!

Back to warhead's question, packing is not so important for a pneumatic. What you want is volume and baffles.

Look at the Daystate airstream design, one of the quietest on the airgun market:

Image

This is another succesful design, the Weihrauch:

Image

Note how the packing is synthetic material like a scouring pad, and only placed on the outer edge of the tube.

The Soundbiter is another simple but effective design, with washers as baffles and springs as spacers, which is only good for airguns and cannot be used for firearms, not ever! Remember silencers are probably illegal where you liveand you should not be making them:

Image
  • 0

Last edited by jackssmirkingrevenge on Fri Mar 02, 2012 2:24 am, edited 1 time in total.
User avatar
jackssmirkingrevenge
Donating Member
Donating Member
 
Posts: 24225
Joined: Thu Mar 15, 2007 11:28 pm
Country: Holy See (Vatican City State) (va)
Reputation: 66

Unread postAuthor: Technician1002 » Fri Mar 02, 2012 2:19 am

I'd be cautious with firearms discussion here.
  • 0

User avatar
Technician1002
Chief of Staff
Chief of Staff
 
Posts: 5190
Joined: Sat Apr 04, 2009 11:10 am
Reputation: 14

Sponsored

Sponsor
 


Unread postAuthor: warhead052 » Fri Mar 02, 2012 11:04 am

Yeah, I agree with Tech. Lets veer off of the firearms. I'm not worried about those, to me the louder the better with them.

As to what you posted jack, are you saying I should make my suppressor as big as possible and add as many baffles as possible? Or something along those lines?
  • 0


warhead052
Major General
Major General
 
Posts: 1769
Joined: Mon Mar 21, 2011 5:41 pm
Reputation: 0

Return to General Spud Cannon Related

Who is online

Registered users: Bing [Bot], Google [Bot], Google Adsense [Bot], Yahoo [Bot]

Reputation System ©'