Quick win
Self-Cleaning Blast Gate
A 4 inch blast gate that will not jam with dust.
- Open gap sheds dust instead of packing it.
- Two flanges, four spacers, and a flat blade between them.
- Four M5 bolts hold the body square, so the blade gap stays true.
- 4 inch duct standard, other sizes to order.
Printed and assembled in our shop, shipped ready to use.
- Made to fit your toolFriction fit, no clamps
- Made in the USAPrinted to order
- Flat $7.95 shippingOne rate, anywhere in the US
- PETG, not brittle PLABuilt for the shop
About This Part
On a normal gate, fine dust settles in the track under the blade. Push the blade down to close and it packs that dust solid, so the gate stops sealing. That is the top complaint about blast gates.
This gate holds the blade in an open gap between two flanges. When you close it, the loose dust falls straight out the bottom of the gap instead of packing under the blade. So it keeps closing clean, run after run.
The body is two round flanges held apart by four spacers, with the flat blade riding in the gap between them. Push the blade in to shut the line, pull it back to open it.
Who it is for: Anyone with a ducted 4 inch dust system who is tired of gates that stick half open.
Specs
Self-Cleaning Blast Gate FAQ
Why do normal blast gates get stuck?+
Fine dust falls into the track under the blade. When you push the blade closed, it packs that dust into a hard plug that stops the blade from sealing. Over time the gate will not close all the way.
How does this gate clean itself?+
The blade rides in an open gap between the two flanges, not a closed track. As you close it, the loose dust falls out the bottom of the gap instead of packing. The path stays clear so the gate keeps sealing.
What holds the two halves together?+
Four M5 bolts and nuts, with four spacers setting the gap the blade rides in. The spacers are what keep that gap even, so the blade slides the same on both sides.
