I have a small compressor which I'm currently (started the build today) building into a Raptorweight (German Hobbyweight)
It is also rated for 150psi or 10bar but after tightening the system down it reaches up to 135psi give or take.



The strange poking-out-bit next to the cylinder is a makeshift buffertanklike thingie.
The robot being tossed aside is my featherweight.

Will have to increase the buffer later on to get some more power out of it.