Compressor - a nugget !

[ksor]

Look what I got today !

http://kelds.weebly.com/skruekompressor.html

;D

 

[ksor]

I got it connected today and did some "programming" to set it to MINIMUM performance - a little too simple and confusing a method I think

It had just a 3/4" hose on the output and I held it in my hand and turned the compressor on

Wav, what a sound ... like an F-16 with afterburner on full throttle !

My ears was nearly hurting so I turned it off after 5-10 seconds.

Now I'll try to mount so pistol so I can shut off the air and see what the compressor will do - hopefully it will power down pretty fast or else I have to press the emergency stop real fast ! :fan:

 

[stevehuckss396]

She's a beauty! does it have a storage tank so you don't have to hear it run all the time?

 

[2manyhobbies]

Now that is a serious home shop compressor! Is that just a compressor, or is there an air drier there too?
Brad

 

[ksor]

She's a beauty! does it have a storage tank so you don't have to hear it run all the time?

There is no tank and it runs continously because it's just blowing free out of the hose - if I mount a pistol so I could close I think it will slow down and maybe stop

 

[ksor]

Now that is a serious home shop compressor! Is that just a compressor, or is there an air drier there too?
Brad

I think there is a dryer in there too - but I have ONLY found a parameter to delay the start of the dryer compared to the motor - I the manual is no schematic to show and name all the components.

 

[ksor]

Now I got a litte further on this projekt:

http://kelds.weebly.com/skruekompressor.html

;D

 

[stevehuckss396]

I'm jelous

 

[ksor]

She's a beauty! does it have a storage tank so you don't have to hear it run all the time?

No tank - you can see it in my new pictures - I used an old butan gas tank !

 

[ksor]

Today I mounted the last things and did a testrun ... and what a dream !

Now only a little painting is missing !

http://kelds.weebly.com/skruekompressor.html

 

[MachineTom]

Yes that is a great air compressor, 54 CFM for us imperial system types.

Please take this as helpful info. That propane tank is the wrong thing to use. It was designed for propane at 80psi, you are pumping 100PSI +, second and more important is it was never designed for possible rusting, as is usual in an air tank, a small amount of rust will quickly take away any marginal strenght built into that tank and then you have a bomb. Buy a real air tank for sake of safety.

The piping from the compressor should go to the air tank, and a second line from the tank to the system lines. This way the hot humid air enters the large cooler tank and drops its moisture as it cools. the feed to the distribution system should exit from the midpoint of the tank, this would provide the driest air. You have an air cooler and a trap appears built in. You will still pass moisture into the tank. As you have it setup, the air used in your blast cabinet is going to have lots of moisture, this makes clumps when used in a blast cabinet.

Is this compressor a continuous run, meaning when it hits max pressure it stops pumping, but the motor continues to run, or a start stop, where the motor starts and stop running base on the pressure in the tank?

The few screw compressors I've seen were continuous running units. A 15 HP motor is a big motor to pay he electric for.

 

[ksor]

Yes that is a great air compressor, 54 CFM for us imperial system types.

Please take this as helpful info. That propane tank is the wrong thing to use. It was designed for propane at 80psi, you are pumping 100PSI +, second and more important is it was never designed for possible rusting, as is usual in an air tank, a small amount of rust will quickly take away any marginal strenght built into that tank and then you have a bomb. Buy a real air tank for sake of safety.

The piping from the compressor should go to the air tank, and a second line from the tank to the system lines. This way the hot humid air enters the large cooler tank and drops its moisture as it cools. the feed to the distribution system should exit from the midpoint of the tank, this would provide the driest air. You have an air cooler and a trap appears built in. You will still pass moisture into the tank. As you have it setup, the air used in your blast cabinet is going to have lots of moisture, this makes clumps when used in a blast cabinet.

Is this compressor a continuous run, meaning when it hits max pressure it stops pumping, but the motor continues to run, or a start stop, where the motor starts and stop running base on the pressure in the tank?

The few screw compressors I've seen were continuous running units. A 15 HP motor is a big motor to pay he electric for.

You'r right about the outlet from the tank - it should not have been the same pipe as the inlet - I'll try it before I change it - but I don't want to weld on the tank - so IF it comes up as a problem with moisture I will have to use a real air-tank and maybe extra dryer too !

You'r wrong about the pressure - normally tha tank is used for 16 bar and I only use it up to 12 bar (the programmed max limit for the compressor).

By inspection no rust was visible in the tank.

The compressor is programmed to start slowly - the motor is controlled by a frequency converter. When started it starts slowly and after 8-10 seconds it stops again because the programmed pressure is reached. When the pressure falls to the programmed lower limit - because I start using air - the motor starts running very, very slowly to compensate the falling pressure - I was told by the former owner, that it's designed to run this way - he used it professionally WITHOUT a tank.

I think MAYBE a cooling problem of the motor could come up - let's see by that ! :fan:

Edit: The motor is a 11kW unit.