The Demands of Automated Machinery

Not all wood dust is created equal. A standard low-pressure/high-volume extraction setup is perfectly fine for traditional hand-fed thicknessers and saws. However, extracting dust from a 5-axis CNC spindle requires a completely different approach: high static pressure.

How the requirements differ:

• Capture Velocity: Standard joinery requires roughly 20 metres per second (m/s) at the hood. High-speed CNC routers and edge banders often require high-velocity extraction of 25 to 30+ m/s to clear the tooling effectively.
• Waste Type: Traditional machines produce curls, chips, and mixed sawdust. Automated panel processing produces ultra-fine, abrasive dust that can quickly blind standard filters.
• Ductwork Integrity: Standard setups use light-gauge tapered branches. High-velocity systems require heavy-duty, reinforced smooth-bore ductwork to withstand the intense abrasive wear of continuous high-speed dust transit.

Protecting Your Machinery Investment

There is nothing more frustrating than voiding the warranty on a £50,000 CNC router because inadequate extraction caused the spindle bearings to overheat and fail. When extraction cannot keep up with the feed rate, fine dust packs tightly into the tooling, causing severe friction, poor cut quality, and premature mechanical wear. Upgrading your fan and ductwork isn’t just about shop cleanliness—it is a direct investment in the lifespan of your automated machinery.

Matching the System to Your Shop

• Traditional Bench Joiners: Your focus should remain on optimised sweep-up ports, well-designed saw capture hoods, and standard centralised airflow.
• Automated Panel Processors: You require continuous shift extraction, heavy-duty filtration, and automated blast gates that open and close in sync with your machine cycles.
• The Compromise Option: If your main factory system is struggling but you just bought a new CNC, we can install a dedicated, high-pressure local extraction unit solely for the new machine, leaving the rest of the shop running on the existing ductwork.

Engineering for Efficiency: Variable Frequency Drives

When running multiple woodworking machines, they are rarely all cutting at the exact same time. By integrating a Variable Frequency Drive (VFD) into your extraction fan, the system automatically speeds up or slows down based on which machines are active. This drastically reduces electricity costs while ensuring maximum suction exactly where it is needed.

CNC & Machinery Extraction FAQ

• Will my current fan handle a new edge bander? Rarely, unless the system was originally engineered with massive over-capacity. We can measure your current static pressure to give you a definitive yes or no.
• Why do I need automated blast gates? Automated gates ensure you aren’t wasting suction on idle machines, directing 100% of your fan’s power to the active CNC or saw.
• How do you prevent ductwork blowouts? By using thicker-gauge, fully welded, smooth-bore galvanised steel rather than cheap spiral ducting on high-abrasion bends.

Protect your machinery investments with extraction designed specifically for high-speed woodworking.