This sounds good. Especially if the whole HW range will be covered. Any talk of rrp?
Just made a visit to agrtuning and happened to see a gas ram from Vortek that he has been sent to evaluate. I have always been impressed with the quality of Vortek standard airgun springs and this "pneumatic piston" gives the same impression. It is supplied with a fill adapter that screws into the centre of the piston seal and can be pumped with a standard foot pump to required pressure. This one has been tested to 9 ft.lb. which is really a maximum you want for the little HW30.
These gas ram pneumatic pistons are not available yet in UK, but will be coming on stream together with others for the Weihrauch range.
Baz
[IMG][/IMG]
BE AN INDEPENDENT THINKER, DON'T FOLLOW THE CROWD
This sounds good. Especially if the whole HW range will be covered. Any talk of rrp?
So does the centre piston trigger latch rod run through the middle of the ram and the large outer plunger compress the gasses when cocked, there must be some good seals in there.
This is interesting then as if it works for HW's then may be one for other centre rod rifles will be available at a later date?
Pete
Far too many rifles to list now, all mainly British but the odd pesky foreigner has snuck in
Last edited by Benelli B76; 07-07-2020 at 05:48 AM.
BE AN INDEPENDENT THINKER, DON'T FOLLOW THE CROWD
BE AN INDEPENDENT THINKER, DON'T FOLLOW THE CROWD
If the fill inlet is in the piston head whats the assembly like with a ram at full pressure? Simular to a spring i stall or harder to compress baz?
Hi BAz, ref Pete's question... does the centre rod run through the ram, emerging from the centre of the rear guide ? I assume it must ?
Obviously the HW30 does not have a piston skirt latching trigger like a supersport or meteor, for example...
Always looking for any cheap, interesting, knackered "project" guns. Thanks, JB.
like this I would assume . click the pics. they did not come out right for some reason.
[IMG] [/IMG]
https://airenlaces.blogspot.com/2012...iston-igt.html
The older version here .
https://www.pyramydair.com/blog/2018...piston-part-1/
yes, exactly what I was thinking... can't see how else it can be. Only disadvantages is you have twice the opportunity for a leak.
Always looking for any cheap, interesting, knackered "project" guns. Thanks, JB.
[QUOTE=bighit;7898131]The older version here .
https://www.pyramydair.com/blog/2018...piston-part-1/
good read... looks liek that one never made it to production though...
Always looking for any cheap, interesting, knackered "project" guns. Thanks, JB.
Is likely to have any effect on the galling issues? I know it doesn't affect all guns but simply refuse to buy one until its not an issue.
Would that be the same way the Theoben HW80 one worked ?
In the article above they say its patented I'm guessing that would be due to the Theoben one being lapsed .
Quote
Vortek Products Inc, long known for innovation in retrofit air gun products, has been in the air gun business since 1989 providing innovated, custom-built air gun muzzle brakes and tune kits. With many years of experience in manufacturing, we were the first to receive a patent for a “Hollow Head, nylon Tip Pellet”, and receive the first and only patent for a “center Latching” gas spring piston for air guns in 1994! We’re excited about the new and ever growing opportunities in the industry. We plan on this site to exhibit innovative design ideas as they are created that are happening right now here at Vortek.
Last edited by bighit; 07-07-2020 at 12:58 PM.