AIR COMPRESSOR - CONVERSION

(JULY 2006)

I made my first silent compressor few years ago to paint with the airbrush at home. now I thought to convert my workshop compressor to silent just removing the old motor end mounting a fridge motor, really quite and good for my use.

my first creation:

JOB DONE MAN!!

easy to see are: compressor motor, air tank (old extinguisher) gauges, regulators, filters and pressure switch.

The fridge motors are slower than electrical noisy motors, but they are able to fill a 24l tank in 5-10 minutes. I am talking about small/medium size fridge motors, something like 1/4 hp  1/3 hp or 1/2 hp.

It is easy to find old compressors in dumps, the problem is to be able to understand which one is still good and have the right power to pump air up to 10bars into the compressor tank, and seems that I am very good in that!

these are 4 (should be good stuff) motors ready to be tested after a trip to the city dump

there is some job to do on the motors, like to trim the edges of the pipes with the dremel to make them precise and rounded ready to get high pressure hoses once connected to the tank.

it is also really important to work in the right way on the electrical part, these motors use a double power ignition system that MUST be turned off after the starts otherwise the motor will burn up! The boxes that usually are placed on one side of these motors are the starting unit, that could be not bypassed.

this is the tank, without the original motor (noisy 1.5 hp)

 

an simple plate of wood is perfect to hold the new fridge motor. The sizes for the holes are 70mm by 170mm same for all the standards fridge motors. The milling machine is AGAIN the useful tool to make perfect holes.

Mr ZEM won the "FASTEST 24L AIR FILLING " competition and voilà, the new motor (ZEM) is mounted provisionally to test that everything works!