31/08/2026
🔧 SELECTING DIESEL COMPRESSOR AIR FLOW ACCORDING TO THE NUMBER OF TOOLS
Choosing a portable diesel compressor is not only about pressure—the compressor must also deliver enough air flow to operate all the tools that will be used simultaneously.
Each pneumatic tool has its own air-consumption requirement, usually measured in CFM or m³/min. To calculate the required compressor capacity:
✅ List every tool that may operate at the same time
✅ Confirm the air consumption of each tool
✅ Add their air-flow requirements together
✅ Allow an additional 20–30% capacity for pressure losses, air leaks and changing demand
✅ Confirm that the compressor can supply the required flow at the correct working pressure
For example, if three tools each require 60 CFM and will operate simultaneously, the combined demand is 180 CFM. Adding a suitable safety margin means selecting a compressor capable of supplying approximately 220–235 CFM at the required pressure.
It is also important to consider how the tools are used. Tools operating intermittently may not require their full combined air demand continuously, while applications such as sandblasting, drilling or production work often require a stable, uninterrupted supply.
An undersized diesel compressor can cause:
❌ Pressure drops
❌ Reduced tool performance
❌ Slower completion times
❌ Excessive compressor loading
❌ Increased fuel consumption and wear
An oversized unit may increase fuel and operating costs unnecessarily. Correct sizing provides reliable performance, better efficiency and longer equipment life.
Let Airstream Compressors help you select the correct portable diesel compressor for your tools, pressure requirements and working conditions—with trailer and non-trailer options available.
📧 Enquiries: [email protected]
🌐 Visit: www.airstreamsa.co.za