Sold: 300bar air tank compressor

[Triggermortis]

Any one have a decent 300bar compressor for sale please, I’m really getting into my air guns at the minute and it’s an hour round trip to get the bottle filled
Cheers
Triggermortis

 

[paul o']

Find a dive shop for around £90 you can get a buddy or thats what I was offered when I was looking.

 

[Triggermortis]

Cheers Paul,
I probably wasn’t clear on my OP, I need a compressor to fill my dive bottle not the gun buddy, it’s as much getting time off work to get to the shop as it is the hour round trip.
Triggermortis

 

[paul o']

Any good!

https://uk.bestdeals.today/internal-redirect?source=amazon&productCode=amazon-uk-B0C594VR2G-new&position=6&url=aHR0cHM6Ly93d3cuYW1hem9uLmNvLnVrL2RwL0IwQzU5NFZSMkc%3D&slug=airgun-air-compressor

 

[Triggermortis]

I’ve just looked at the specs for that one, at the rate it fills an 0.5l bottle it’ll take over 7 hours to fill my 12litre dive bottle
Triggermortis

 

[Mike L]

I’ve just looked at the specs for that one, at the rate it fills an 0.5l bottle it’ll take over 7 hours to fill my 12litre dive bottle
Triggermortis

So don’t use the 12l, just pump the pcp gun bottle straight off the compressor

 

[Triggermortis]

One slight technicality Mike, at certain times of the year we’re shooting 100’s of mice inside an egg farm, you can easily go through a tin of pellets each in an evening,the sheds are up to 140m long, we need a mobile air tank to service a number of shooters stationed within so we use a tank.

Triggermortis

 

[bowji john]

hillcompressors

Not cheap

English made

Great company

I have one - it's the biz

EC-3000 evo - The Hill Electric Air Compressor Pump

Please select the correct version for your location: 3000-001 evo - 220-230v UK Version comes with 3 Pin UK Plug Adaptor - Includes Free Next Working Day UK Delivery* 3000-003 evo - 220-230v EU Version comes with 2 Pin EU Plug Adaptor 3000-005 evo - 220-230v Australian Version comes with 3 Pin...

www.airriflepump.com

 

[Triggermortis]

I think Jon that after a lot of research that the EC300 Evo is the way to go, seems to be the industry benchmark , have you filled a 12 litre bottle with yours?
Am I right in thinking it’d have to be filled in 4 stages to avoid overheating?

 

[Cyres]

Get 3 300bar cylinders. Use one to fill up and other to top up. I assume its top end is the issue so use one to fill up say 75 %, and a higher pressure one to take up to max
.
D

 

[Mike L]

I think Jon that after a lot of research that the EC300 Evo is the way to go, seems to be the industry benchmark , have you filled a 12 litre bottle with yours?
Am I right in thinking it’d have to be filled in 4 stages to avoid overheating?

Dive bottles are always best pumped whilst submerged in water, just stand it in a container with the neck/valve out.

 

[Tim.243]

Dive bottles are always best pumped whilst submerged in water, just stand it in a container with the neck/valve out.

Dive bottles are best filled from an air bank system using a cascade method, to get a true 300 bar fill then they need to cool and be topped. Bank air is cool pumped air is hot.
With a dive cylinder you can lay it in the tank, with a surface cylinder the filling gauge is for surface use only.
I have a 300 bar 4 stage compressor low cfm (converted from micro bore to 1/4")

If the op is doing a lot of decants then a 12ltr 300 bar will have the volume but to fill it to 300 on a regular basis a low priced unit will fail, Moisture is the problem and small units don't do well.

 

[bowji john]

I think Jon that after a lot of research that the EC300 Evo is the way to go, seems to be the industry benchmark , have you filled a 12 litre bottle with yours?
Am I right in thinking it’d have to be filled in 4 stages to avoid overheating?

I’m not sure if that question is directed at me

I don’t bother filling dive tanks

I just recharge the air rifle after every use - takes about 60 seconds

However I use mine around the farm and on our air rifle range, so never far away from a refill

I suspect that you might have to do a bottle in stages

The compressor auto cuts out over a certain temp to avoid over heating

 

[Mike L]

Dive bottles are best filled from an air bank system using a cascade method, to get a true 300 bar fill then they need to cool and be topped. Bank air is cool pumped air is hot.
With a dive cylinder you can lay it in the tank, with a surface cylinder the filling gauge is for surface use only.
I have a 300 bar 4 stage compressor low cfm (converted from micro bore to 1/4")

If the op is doing a lot of decants then a 12ltr 300 bar will have the volume but to fill it to 300 on a regular basis a low priced unit will fail, Moisture is the problem and small units don't do well.

It’s one bloke with a 12l

 

[Tim.243]

It’s one bloke with a 12l

What do you recommend for the op apart from sticking it in a tank of water...
@Triggermortis ring that company and ask the cfm of that unit (fill rate) as you will be waiting for ever and a day to fill it. Your lads will run your tank down to abt 100/150 bar then that small unit will have to start off at that pressure to fill up to 300 with top end pressure being the hardest to make. I tested dive cylinder's for quite a while here in the UK so know first hand pumping tanks, 1k is an expensive experiment for filling 1 12ltr.

Divide the travel time for filling between the other people or bust up the cost of the unit...or get a extra long filling whip so you can fill it in the bath...

 

[Mike L]

What do you recommend for the op apart from sticking it in a tank of water...

Nothing else needed

 

[Tim.243]

Nothing else needed

Any pictures of your set up or are you just grasping at the green sticker in your back window...

My money says you set up it is a bike pump and tin bath..

 

[Mike L]

Nothing else needed

Any pictures of your set up or are you just grasping at the green sticker in your back window...

My money says you set up it is a bike pump and tin bath..

You can lose your **** attitude for a start, I don’t have a set up as I have a 300 bar compressor available at work.
I have been a professional diver since 1991, 17 years of that offshore saturation diving.
I have built and continue to build dive panels/systems for air/nitrox/helium.

Now back to the OP, let’s put £100 on whether he buys a small compressor and fills his tank, or as you suggest a cascade system?

 

[Tim.243]

You can lose your **** attitude for a start, I don’t have a set up as I have a 300 bar compressor available at work.
I have been a professional diver since 1991, 17 years of that offshore saturation diving.
I have built and continue to build dive panels/systems for air/nitrox/helium.

Now back to the OP, let’s put £100 on whether he buys a small compressor and fills his tank, or as you suggest a cascade system?

Good reply which as you know could have been the advice from the start....
Yes he will buy one as to whether it is fit for purpose for a 12 ltr 300 bar fill starting from 0 or 100 bar over time is where my money is...
Divers understand or should about air fills and what to look for but with the lads with a pcp's they just want a fill.