Iwata 925 Compressor Question?

[Guest]

I picked up a free Iwata 925 compressor yesterday from a friend and I started using it right away. The first thing I noted was that this compressor has no tank. As I was spraying I noticed that the compressor cycled on and off quite frequently. Is this type of compressor supposed to do this? I knew that that this compressor would cycle more than my other set up but I didn't figure it would cycle every 5 to 7 seconds. I'm used to a compressor with a tank in which the compressor cycles only when the tank needs air. If this constant cycling is normal then I won't worry about it. Thanks.

Ray

[eddiesolo]

I have a non tank compressor, when I use it it cycles all the time, when not it cycles now and again. Although mine isn't a Iwata one it sounds like they are doing a similar thing.

If it works okay and the flow rate is okay at all pressures then I would presume it is functioning okay.

Si

[Vaughan]

That's correct the compressor will only activate when you press the trigger on your airbrush unlike as you mentioned if you have a tank reservoir it will only run when the tank is below a certain pressure.

[Guest]

If you mean Ray it switched itself on and off that is not my experience with tank less compressors. They will without a tank react to give the pressure you have demanded on the air pressure adjuster running all the time. If this is the case that it is cycling there is something wrong.

If you mean that it is not completely smooth in the delivery then that is built in. The air comes in a similar way to a bicycle pump, pump recover pump recover etc. Quite smooth but not as smooth by any means as a tanked model.

Matter of interest if you look at an Iwata in my opinion they are badged ordinary run of the mill Chinese models. Most of the metal moulding are the same with different colours etc. Bit of insider info from my supplier confirmed my belief last year.

Laurie

[Guest]

The air flow remains constant at all pressures. I assume it cycles this much in order to keep the air flow constant as I push the trigger on the air brush. I just wasn't expecting it that's all as I've been using a compressor w/ a tank. There's no leaks as I checked all connections. So I just need to get used to it going on and off all the time which isn't hard as it runs very quiet. But the main reason I like this is it was free. Thanks for everybody's input as you put my fears to rest. Thanks

Ray

[Guest]

Ray I assume you mean that the compressor starts when you pull the trigger and stops when you release. If that is the case that is normal.

Laurie

[ojays]

Unfortunately many none (receiver) compressors, struggle to keep the constant pressure required, to have a pulse free supply of air at the gun.

This results in the compressor constantly chasing the released (at the gun) air, hence it cycling as you mention.

This isn't a major problem, just annoying!

Gregg

[Guest]

I picked up a free Iwata 925 compressor yesterday from a friend and I started using it right away. The first thing I noted was that this compressor has no tank. As I was spraying I noticed that the compressor cycled on and off quite frequently. Is this type of compressor supposed to do this? I knew that that this compressor would cycle more than my other set up but I didn't figure it would cycle every 5 to 7 seconds. I'm used to a compressor with a tank in which the compressor cycles only when the tank needs air. If this constant cycling is normal then I won't worry about it. Thanks.Ray

Hi Ray, I have had the Pro version of this type of compressor for about 4 years now, works great and very reliable - enjoy. Cheers Derek

[Guest]

You've all been a big help in my education of this type of compressor. I used it today with some Vallejo model air and it worked like a champ. I noticed no drop off in air supply so this will be a good second compressor so I'll be able to run two guns without changing out hoses. Thanks again for all your inputs you guys really know your stuff.

Ray

[Guest]

Pleased all is well. Actually Ray I run two hose lines from the same compressor saves having to much gear around the work place. Just a T Bar connection.

Also have quick releases at the hose end with the appropriate connector on each airbrush. Quick release especially as a wash the brush at the sink.

Laurie

[Guest]

Laurie,

I have a manifold with 3 outlets on my one compressor that has 2 air brushes connected to it. Now I need to figure out what to do with this one as I never expected to get one given to me. Maybe I'll just box it up for a backup, sell it, give it to a local modeling club for a raffle who knows.

Ray

[Guest]

Having had 3 give up in 3 years Ray I would store it under the bed for emergencies.

Rotten to have a compressor pack up in the middle "of very important work". Believe me.

Laurie