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Whatsminer 140 mm Fan to 8" Duct Shroud - 3D printed PETG ASIC miner airflow part by D-Central

Whatsminer 140 mm Fan to 8″ Duct Shroud

$35.99 CAD

Whatsminer 140 mm fan to 8-inch duct adapter for long runs, multi-bend routing, inline booster fans and shared exhaust trunks. Full 140 mm fan face on the M30S+, M50, M50S+ and M60, full 8-inch collar, one continuous PETG body. Made to order in Montreal, Quebec, and released open source.

  • Condition: New
  • Availability: In stock
  • Returns: 30 days from delivery to report a defect or dead-on-arrival unit. No change-of-mind returns.
  • Warranty: Covered by the manufacturer's warranty, as stated on this listing at purchase.
  • Support: Ships from Canada with D-Central mining hardware and repair support

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Condition
New
Warranty
Support and warranty coverage apply where listed for this product.
Returns
Return requests follow the posted policy and require approval before shipping back.
Stock
Available on backorder.
Lead time
Pre-order: 5-10 business days before shipping.
Ships from
Montreal, Quebec after preparation.
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  • Condition: new
  • Lead time: Lead time confirmed before checkout

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SKU: DC-SHR-WM-140-8 Categories: , Tags: , , , , , , , , ,

Whatsminer specs, repair, and parts

Use the Whatsminer cluster to connect MicroBT specs, M30/M50/M60 troubleshooting, shrouds, repair workflow, and hosting decisions.

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Description

Whatsminer 140 mm fan to 8-inch duct adapter, sized for the whole run

This Whatsminer 140 mm duct adapter opens onto a full 8-inch collar, and it is the version to buy when the duct has work to do. The M-series fan is rarely the limiting part of a ducted setup; the pipe after it usually is. Length, elbows, an inline booster, a shared trunk — each spends pressure, and the first fitting on the machine is the worst place to start spending it.

Same M-series 140 mm intake face as the 6-inch shroud, same single continuous PETG body drawn in-house, opened so the run begins at its widest point instead of its narrowest.

Buy this one if the path is long, bent, shared or fan-assisted. Buy the 6-inch if the Whatsminer sits beside the wall it exhausts through.

What it fits: M-series 140 mm fan, full 8-inch duct

The intake is the MicroBT Whatsminer 140 mm fan flange on its 124.5 mm screw pattern, which is the face carried by the M30S+, the M50, the M50S+ and the M60 — those four, named, rather than a family label. Like the rest of the 140 mm range it is dimensioned to the fan and not to a chassis wrap, so a restyled case does not make it scrap.

The collar takes standard 8-inch flexible or rigid duct at 203.2 mm nominal, and mates directly with 8-inch inline fans of the AC Infinity Cloudline S8 and T8 class.

For metric ducting, take the Whatsminer 140 mm Fan to 200 mm Metric Duct Shroud rather than forcing 200 mm duct onto an imperial collar. For a short direct exhaust, the Whatsminer 140 mm Fan to 6″ Duct Shroud is smaller and cheaper. Two 140 mm fans on one face, as on an Antminer S21 Pro, want the Antminer S21 Pro Dual 140 mm to 8″ Duct Shroud.

How it is used

Seat it over the exhaust fan, band-clamp 8-inch duct onto the collar, and build the rest of the path in 8-inch: coupler, swept elbow, trunk, window port. Put any inline fan downstream of the shroud so it pulls the run along rather than competing with the machine’s own fan. Where several Whatsminers share one exit, bring the branches into a single 8-inch trunk, and step down only at the last fitting.

Why the collar size decides how the rest of the run behaves

An 8-inch round carries roughly 1.8 times the cross-sectional area of a 6-inch round, and the difference in part cost between the two is small. Duct diameter is the cheapest airflow anyone can buy. Every elbow, every metre of flexible duct and every reduction claims a share of the pressure the fan works with, and a machine at full power has none spare for a fitting bolted to its face.

The same reasoning governs where to reduce: at the machine, the entire downstream run works through the constriction; at the wall, only the last stretch does.

  • Opens the run at its widest point, before the elbows and the length take their share
  • Mates straight onto 8-inch inline booster fans with no adapter stack in between
  • Carries the full M-series 140 mm fan face — no blocked outer ring, no recirculation
  • Holds its geometry in sustained exhaust heat — PETG, not a low-temperature plastic
  • Arrives as one finished piece: no assembly, no fasteners, no glued seams to split

Specifications

Fits MicroBT Whatsminer 140 mm fan flange on the 124.5 mm screw pattern — M30S+, M50, M50S+ and M60. No other Whatsminer variant is claimed
Intake 1 × 140 mm fan
Outlet 8″ duct collar (203.2 mm nominal)
Metric collars 150 mm, 160 mm and 200 mm versions of this shroud are sold separately
Footprint 203.2 × 203.2 × 135 mm
Material PETG
Colour Black or orange PETG
Construction Single continuous body — no assembly, no fasteners, no glued joints
Design files Open source, CC BY-SA 4.0 — free to download, use, modify and redistribute
Download whatsminer_140_to_8in.zip — STL, CC BY-SA 4.0 licence, installation and safety guide
SKU DC-SHR-WM-140-8

Open source — the design is free, the part is made for you

Every shroud in the 140 mm range is released under CC BY-SA 4.0 at the 3D models download center, this one included: download it, lengthen the body, change the collar, run it commercially. Whatsminer owners deserve the ducting range Antminer owners take for granted.

D-Central Technologies designed this part and open-sourced it — our geometry, published under CC BY-SA 4.0, drawn here and not borrowed from anywhere. Its card is at the Whatsminer 140 to 8-inch entry; the file is whatsminer_140_to_8in.zip, holding the STL, the licence and the installation and safety guide.

What this page sells is the made part — printed to order in PETG in Montreal, Quebec and shipped worldwide from Canada, for when you want an 8-inch collar on the machine rather than a project for the weekend. Two colours: black, or D-Central orange. The download stays free; buying the printed part or backing D-Central’s fund page is what pays for the next design.

Works with

See the full D-Central shroud and ducting system for the compatibility matrix and sizing guide.

Frequently asked questions

When does the 8-inch actually pay for itself over the 6-inch?

When the run is long, when it turns more than once or twice, when several machines share a trunk, or when an 8-inch inline fan sits in the path. Those are the cases where the duct, not the fan, sets what the machine moves. For a short straight shot out a nearby wall, the 6-inch version does the job for less.

Can two Whatsminers share one 8-inch trunk?

Yes, and it is a tidy way to get several machines out through one penetration. Shroud each one, merge the branches with an 8″ to Dual 6″ Y-Splitter used as a merge, and run a single 8-inch path outside. Two 6-inch branches come to roughly the same area as the 8-inch trunk carrying them.

Will it mate with an AC Infinity Cloudline S8 or T8?

Yes — the collar is standard 8-inch, which is what those inline fans are built around. Fit the inline fan downstream of the shroud rather than between shroud and miner, so it pulls the run along instead of competing with the machine’s own fan.

My duct is 200 mm metric. Can I use this?

8-inch is 203.2 mm and metric duct is 200 mm, so the two are close without being the same. Instead of forcing the joint, take the Whatsminer 140 mm Fan to 200 mm Metric Duct Shroud, cut to the metric size. The range also runs to 150 mm and 160 mm collars.

Where should the reduction go if my wall port is 6-inch?

At the wall, as the final fitting. Run 8-inch the whole way and drop to 6-inch with an 8″ to 6″ Duct Reducer at the penetration. A reduction at the machine makes every bend and every metre downstream work through it; a reduction at the end applies to the last stretch only.

Does the 8-inch body need extra support?

The shroud seats on the fan and carries its own weight without help. What is worth supporting is the duct: a long 8-inch run, especially insulated flex, is heavy enough to hang on the collar and pull the shroud out of square. Strap it to a joist or wall within the first metre.

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