Thomas Compressor – Set up and Features

Thomas Compressor – Set up and Features

Profitable Hobbies – Thomas Compressor is a commercial grade, portable compressor specifically designed for those needing to transport their compressor to trade shows or other public events. It is quiet enough to run right under the table, yet powerful enough to deliver enough air pressure for you toughest engraving projects.

Thomas Compressor in Quiet Box

The Thomas Compressor is enclosed in a Quiet Box for quiet, safe operation. This enclosure has a built in fan and vents to allow operation with the box closed.

The video below will show you exactly how to set up and operate the compressor.

The dimensions of the Quiet Box are 18″ L x 13″ W x 8″ D. The total weight is 25 lbs.

The decibel level of the compressor, inside the box, with the lid closed is about 73 decibels.

Special Note (not included in the video – sorry) – There is a small silver button you will see on the top of the compressor – it is for bleeding trapped the air from the air hose, if it gets trapped in the hose between the compressor and the regulator. The first sign of this is if you turn the compressor on and it just hummmmmms.

Here is a picture of where the relief valve is located.

Air Relief Valve - Press Button

If this happens, unplug the compressor and press down on the silver button to release the air. After the air is released, the compressor will start up again when plugged in.

The main cause of this is when the air is turned off at the regulator (either by a two way valve or by turning the knob on the regulator all the way down, before the air has traveled to the handpiece. To avoid this, unplug the compressor and let the handpiece wind down, releasing the air from the hose.

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4 Responses to Thomas Compressor – Set up and Features

  1. charlotte July 13, 2011 at 11:18 am #

    I don’t see a silver button on my compressor

  2. admin July 14, 2011 at 10:59 am #

    Charlotte, we no longer put the silver pressure relief button on the compressors. We have had better luck without them because they are not needed if you let your handpiece wind down and stop on it’s own when you are finished engraving. This drains the air from the compressor hose and makes sure no back pressure is put on the compressor. People run into trouble when they are running their handpiece, then suddenly shut it off with a valve or close off their regulator without letting the air drain from the line. If you ever hear your compressor “hummmm” without starting, this means air is against the head and you need to open up your regulator and let the air escape. Hope this helps, please let me know if you have further questions. – Russ

  3. Paula August 16, 2011 at 10:36 am #

    where can i purchase this compressor and how much is it?

  4. admin August 17, 2011 at 9:54 am #

    Profitable Hobbies compressors are available at Here is the direct link to the Thomas Compressor –