Compressor specification for alu chip blower

[Shinobiwan]

Most of the 50L models out there are poor. I had a Sealey 50ltr 2hp that lasted about 6 months before developing a loud knock on the piston. Bought a cheapie 2.5hp 50ltr from Netto for about £80 as a stand in and that did exactly the same. They use cheap materials and cut corners anywhere they can with these low end compressors. They're really made for occassionally blowing up the odd tire, a quick spray paint here and there etc. Problem is the duty cycle is low and if you run these regularly and for long periods the heat kills them. Things that need lots of air such as spraying or blowing off chips will have your compressor cycling often with the combination of small motor and small tank.

I eventually bought one of these.



Surprisingly quiet since its really made for dental work, great if you have to run for long periods or have neighbours. That was about 6 years ago and have absolutely hammered it. Its just starting to get tired now with the teflon coating on the pistons all but gone(its an oil free type) so it tends to get very hot quickly but there hasn't been a week where it hasn't run and sometimes I'm using it all day week long when busy.

I'm looking around for a replacement and the next one will be a 150ltr possibly 200ltr if I have room. This one on ebay is a good price Air Compressor 3hp 150lt Belt Driven Motor 230v SUPER QUALITY | eBay.