Pulley Diameters for Keene HP500 Pump and KAC1 Compressor.

[roughau]

Gidday Rob.
Do you know the above Pulley diameter ratios.
Is there a previous thread on this subject. ?.

I have a 16HP Motor and the above HP500 and KAC1.

Maybe Boaraxa may remember what Pulley ratio he had
when he was running his 5 in. Dredge a few years back.

Can anyone help me with this Please. ?.

CHEERS.
RoughAU.

[RKC]

G'day roughau,

I did a search and got the following ...

golddredgingforum.proboards.com/search/results?captcha_id=captcha_search&what_at_least_one=pulley&when_before_date=02%2F02%2F2018&who_only_made_by=0&display_as=0&search=Search

The aim of having a large pulley on the compressor is to slow the compressor RPM down. The diameter of the pulley is not all that crucial ... so, you could experiment without doing damage. And pulleys are inexpensive. And if you are only using one diver you could use quiet a large pulley that would slow the rpm down considerably. Its worth running the compressor as slow as you can get away with as it will last longer. If you ran a Thomas compressor at a high rpm it would probably only last a day or two .


The compressor you have looks interesting ( www.trademe.co.nz/business-farming-industry/other/auction-1540731099.htm ) let us know how it works out for you!

Regards,
Rob (RKC)

[lbd]

Feb 13, 2018 11:14:55 GMT 12 roughau said:

Can anyone help me with this Please. ?.

CHEERS.
RoughAU.

I have had two std Keene set up with a GAST 263... but then adjusted it slower
First set up the relief for the correct air pressure for the regulator to work fine.
Decide if you will need air for one or two people.
Then with one or two people working and drawing air, watch and listen for the relief popping off..
An occasional pop off say every five to seconds ten is good, however if there is constant air bleeding of from the relief valve at maximum air draw, you can then slow the compressor down.
On the other hand, if you cannot sense the bleed of valve popping off and the pressure gauge is dropping, you may need to increase the speed of the compressor.

[roughau]

Lbd and Rob.
Many thanks for your info on the Compressors.
It is great to have the Forum here to help with questions.
Thanks again.

CHEERS
JET>.