How-To Blogs & Videos
How to Choose the Right Replacement Pump: Oil-Free vs Oil-Bath, CFM, and RPM
Replacing a tired air compressor pump is one of the fastest ways to restore airflow, tool performance, and confidence in your setup. The challenge is getting the match right. A pump that overspeeds, starves for oil, or cannot meet your tools’ CFM needs will shorten lifespan and create downtime.
This blog walks you through the essentials, from oil-free vs oil-lubricated trade-offs to calculating required CFM at your working PSI, confirming pulley sizes and motor horsepower, and checking mou
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Mar 3, 2026
Mastering Your Compressor: How to Set the Perfect Pressure for Any Job
One of the most frequent questions we hear at Master Tool Repair is: "What pressure should my air compressor be set at?" It's a great question, and the answer isn't a simple one-size-fits-all number. The ideal pressure for your air compressor depends entirely on the tools you're using and the task at hand. Setting it correctly is crucial for tool performance, safety, and even the longevity of your compressor and its parts.
Understanding the Basics: PSI and CFM
Before we dive into specific pressu
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Jun 6, 2025
What is CFM and Why Is It Important?
When it comes to air compressors, one of the most important metrics to consider is the CFM or cubic feet per minute. CFM is a measure of the amount of air that an air compressor can deliver at a given pressure level. It indicates the compressor's airflow capacity and is a crucial factor to consider when selecting an air compressor for a specific application. The higher the CFM, the more volume of air the compressor can deliver and the more powerful the compressor will be.Displaced CFM vs Deli
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Apr 2, 2024