This page is here to help you to understand what air compressor accessories are available, and to determine if a particular compressor accessory that may not have come with your air compressor is one that you want or need.
Some manufacturers show as standard compressor accessories that other firms list as extra. Some of these add-ons you really must have, some you might not need for your particular compressor.
A range of compressor accessories are listed in alphabetical order.
if the compressor you have selected is an enclosed (shrouded) unit ensure that you understand how to access all the components that require regular maintenance, for ease of change out. It doesn't hurt to have the compressor dealer demonstrate the process for you as well.
In the case of the smaller DIY type air compressors, as shown below, removing the shroud that covers the user serviceable parts is often a challenge. Often your manual will show how to remove the shroud. If not, maybe before you buy you ask the sales person at the store to show you? You will have to get into the guts of the compressor eventually.
If you are building an enclosure for your air compressor in order to reduce compressor-generated sound levels or to prevent unauthorized access to it, make sure you install adequately sized access doors for your regular and emergency maintenance.
An aftercooler, integrated with the compressor, will solve some of those heat issues by cooling the hot compressed air (and ridding it of much of the water load) before that air gets to your tools and equipment.
More information on heat related water problems can be found here.
Aftercoolers can be electrically operated, water driven, or simply be a dwell tank in which the compressed air can sit and cool before use. If you feel an air compressor after cooler may be beneficial, moreinformation on aftercoolers can be found on this page.
Here is much more information on auto drains.
An automatic belt tensioner will help alleviate that concern and improve the overall efficiency of your unit. This will save you money!
In doing your research before you buy, you'll note that there is a real concern about the longevity of the bearings at the air-end of rotary screw compressors.
This issue of "air end reliability" is referred to so frequently in compressor literature and on compressor manufacturer's websites, that you want to be sure to discuss air-end feature of their units with each manufacturer. How do they address the air end reliability of their compressors?
Do yourself a favor and make sure that if the compressor you select is belt driven, that the belt drive is shielded. If you can get to the belt while it's moving, you can expect that sometime, someone else will, with potentially serious results.
Some control issues (but by no means all) are:
To better understand why compressed air dryers are needed, here is information on what causes compressor water, and if you follow the links, information on various dryers for compressed air.