Welcome to the About Air Compressors Online Support Community

Here are some of the latest support discussions taking place right now - join in, help where you can, request help when you need it - and be kind!

Identifying an Older Air Compressor – Serial Numbers, Photos & Antique Air Compressor Identification

Help Identifying Compressor

Are you having an issue with identifying an older air compressor? Air compressors have been around in one form or…

Best Ways How to Increase CFM On Air Compressor – How to Increase CFM Guide

Tanks are measured in gallons. How many cubic feet of compressed air do these tanks hold?

The best way to increase CFM on an air compressor is to make some adjustments to your system such as…

Central Pneumatic Air Compressors – Information, Manuals, Service Locations

Central Pneumatic Air Compressor Model 94667

In North America Central Pneumatic air compressors are available at, and are the house compressor brand of, Harbor Freight Tools…

Speedway Air Compressors – Help, Information, Manuals & Service Locations

Speedway Series 4.5 Hp, 25 Gallon Upright Portable Air Compressor. 120v, Direct Drive

Find Speedway Air Compressor help, ask questions and get answers on this Speedway Air Compressor support page. Speedway Air Compressor…

Why An Air Compressor Won’t Build Pressure & How to Fix an Air Compressor Not Building Pressure

Cylinder And Pistons

Why is it a compressor will not build pressure? Does the following describe what’s happening, or rather, what’s not happening,…

Types of Compressed Air Valves – Guide To Pneumatic Valves

A 4/2 ported, double solenoid, compressed air control valve. The bottom side of this valve has two ports mirroring the two shown

Compressed air pneumatic systems require methods of safe and precise control of force, velocity, and direction of movement. Pneumatic valves…

Harbor Freight Air Compressor Keeps Tripping Thermal Reset Button – Solutions & Causes

Harbor Freight 90234 air compressor

A common problem with Harbor Freight air compressors is the Harbor Freight air compressor reset button tripping. This article will…

Air Compressor Won’t Reach Cut-Out Pressure Troubleshooting

Craftsman 921.164710 Air Compressor

When your compressed air system fails to reach sufficient pressure for any given application – whether that be auto body…

Pneumatic Screwdrivers Explained – What Are They, How They Work, Safety, Maintenance & Buying Guide

A pneumatic screwdriver is a tool that is powered by compressed air. Commonly used on an assembly line, the pneumatic…

Grease Guns Explained – What Are They, Different Types, What Are They Used For & Buying Guide

Grease guns are common workshop tools used for lubrication purposes. There are different types available depending on the task you…

Die Grinders Explained – What Are They, Different Types, What Are They Used For & Buying Guide

Die grinder by Ingersoll Rand

Die grinders are one of the more versatile, but often underappreciated tools available in today’s market. This article will provide…

Siding Nailers Explained – Siding Nailer vs Roofing Nailer, What Are They, How Do They Work, What Are They Used For & Buying Guide

Roofing nail gun - this one's by Bostitch

Being true to its name, a siding nailer is used for installing siding in your house. While these are quite…

Pin Nailers Explained – Pin Nailer vs Brad Nailer, What Are They, How Do They Work, What Are They Used For & Buying Guide

Flooring nail gun example

If you want a smooth-looking finished product, then a pin nailer is the right tool for you. Brad nailers often…

Palm Nailers Explained – What Are They, How Do They Work, What Are They Used For & Buying Guide

There are several types of nail guns available, each of them providing specific uses and characteristics. However, the palm nailer…