Bitcoin accepted at checkout | Ships from Montreal, QC, Canada | Expert support since 2016
$38.99 CAD
A quarter turn on, a quarter turn off. The bayonet collar exists for people who take the duct off regularly — for maintenance, for moving machines, for seasonal changes in where the heat is supposed to go — and who are tired of fighting a band clamp every single time.
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A quarter turn on, a quarter turn off. The bayonet collar exists for people who take the duct off regularly — for maintenance, for moving machines, for seasonal changes in where the heat is supposed to go — and who are tired of fighting a band clamp every single time.
Same rear 120 mm fan pair intake as the rest of the dual-120 family, covering the Antminer S19 series and standard S21. Not for the S21 Pro or XP. The 6-inch collar carries a bayonet lock rather than a plain or grooved barrel.
Measure before you order. Fit dimensions in this line are derived from published fan and chassis geometry and are not yet validated against measured production hardware. Check your flange size and the clearance around your machine against the footprint in the specifications below. If something does not fit, tell us — that is how the next revision gets better.
Fit the matching duct-side fitting once, then engage or release the duct with a quarter turn. Ideal for a bench where machines rotate through, for a heater that gets redirected between a workshop and a greenhouse, or for anywhere that access panels need to come off in a hurry.
Maintenance you dread is maintenance you skip. If pulling the duct means finding a nut driver and wrestling a clamp, the fan filter does not get cleaned and the intake side slowly chokes. A joint you can open in one second is a joint you will actually open.
| Fits | Antminer S19 series and standard Antminer S21 — rear 120 mm fan pair |
|---|---|
| Intake | 2 × 120 mm fans |
| Outlet | 6″ bayonet-lock collar |
| Footprint | 250 × 157 × 165 mm |
| Material | PETG |
| Construction | Single continuous body — no assembly, no fasteners, no glued joints |
| Design files | Open source — free to download, use, modify and redistribute |
| SKU | DC-SHR-BAY-D120-6 |
Every shroud D-Central designs is released as an open file. The geometry for this part is free to download from our 3D models download center: use it, modify it, remix it, run it in your own shop, sell what you make from it. There is no licence to buy and no design gated behind a purchase. Shared knowledge is the whole reason this industry has open hardware at all, and we are not going to be the ones who stop passing it on.
This listing is for the finished part: made to order in PETG and shipped from Montreal, Quebec. If you would rather have it in your hands than spend an evening making one, buy it here — that is what pays for the next design in the line. You can also support the open-source work directly through D-Central’s fund page.
See the full D-Central shroud and ducting system for the compatibility matrix and sizing guide.
A band clamp in a groove is the stronger joint and the right pick for a vertical or load-bearing run. The bayonet trades a little of that for speed. Pick based on whether you value holding force or access time.
The matching duct-side fitting is part of the same open design family and downloads with the shroud. If you would rather buy it finished, get in touch — and if you would rather cut your own, the geometry is published.
Bayonet for tool-free access, clamp-groove for holding force, threaded for a positive screw-on, venturi for airflow, offset for tight geometry.
| Weight | 260 g |
|---|---|
| Dimensions | 25 × 15.7 × 16.5 cm |
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