Quincy Air Compressor

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Quincy Air Compressor
Owner/Loaner PS:One
Serial Number {{{serial}}}
Make/Model 350-15
Arrival Date 2015
Usability No aug 26 2021.
Contact General Operations Team. Andrew Morris.
Where Boiler Room (General)
Authorization Needed no
Hackable no
Estimated Value ~$1500
Host Area General Area

Quincy Air Compressor Area: General Area https://wiki.pumpingstationone.org/wiki/Quincy_Air_Compressor

Removal Section

  • What is it? - The old shop air compressor
  • Who is sponsoring? - Andrew Morris, General Ops Lead, in lieu of General Area Host
  • Date published to Discourse - October 18, 2021
  • Asset value - Scrap; motor probably worth around $150
  • Suggested method of removal - Sell the motor at auction/locally, and junk the rest
  • Background notes - Probably try to sell the motor on eBay first, and if not, see if a motor shop will buy it, or Craigslist
  • Resolution of removal -
  • Approval -


The quincy compressor is the main compressed air source for PS1. This compressor is in the boiler-room and supplied air via overhead piping to:

  • the general worktables in General, Wood and Hot metals
  • back door next to small metals
  • wall of cold metals
  • shopbot
  • West wall of hot metals
  • lasers for air assist

The compressor is a 2 stage unit, with integral unloaders and an aftercooler/catch tank after the compressor stage. The The compressor is currently configured:

  • 125PSI output
  • No drain in tank (bottom port is simply plugged)
  • 1" SS flex hose connection to shop wall


    • out of service 8/26/21. Andrew m Brian d and gary n assessed a major failure. We have contacted Quincy for a service call. no response from Quincy. Brought in another respected service co. UPDATE 9/1/2021 the system has failed. mostly drive motor but rest of system is in dangerous condition. We have configured temporary air for Lasers but all other drops plus tools that require air (Tormach, Blasting cab, Plasma table are dead in water for now. General Operations Team and President are working on solution.

  • The local quincy distributor is very helpful for gaskets and replacement parts: John Hinkel <[email protected]> NOT AVAILABLE VIA EMAIL 2021. ,
  • Our compressor is old enough that he can't look up the exact parts on his computer so there is some guesswork in identifying which gaskets are correct. So far he's been on the ball.
  • The compressor came on a tank from the 1960's and it is unclear whether this tanks is safe to use. The cost of hydro-testing was prohibitive, so a new tank was procured from McMaster Carr
  • The compressor has a history of leaking BADLY. In June 2017, the compressor head was diassembled, cleaned, and new gaskets installed. This reduced but did not eliminate leakage. Primary culprits for the leaking were the 2 side access panels. These are made of zinc, and over-torquing the mounting bolts caused them to warp. They were straightened on the arbor press before re-installation, however, leakage is still an issue.
  • The unloaders have diaphragm gaskets that are cracked, and should be replaced