Whatsminer 140 mm to 8″ Expansion-Chamber Shroud Silencer

Description

Overview

The Whatsminer answer to the same problem. A 140 mm fan face on the intake, a reactive expansion chamber in the middle, an 8-inch duct collar on the way out — sized so the acoustic chamber does not become the airflow bottleneck on a machine that moves as much air as an M-series does.

What it fits

Dimensioned to the Whatsminer M-series 140 mm fan flange shared across the M20, M30, M50 and M60 generations. The 8-inch outlet is deliberate: on a chamber design, the outlet needs headroom to keep the pressure penalty reasonable.

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.

How it is used

Fits the exhaust fan, takes 8-inch duct on the outlet. It is a large part — check the clearance behind the machine, and be aware that it adds meaningful depth compared with the plain 140 mm shroud.

Why it helps

Whatsminers are loud in a way that carries. An expansion chamber reflects part of the sound energy back rather than letting all of it ride the air column down the duct and out into the neighbourhood. The mechanism is geometric, so there is nothing to service and nothing to wear out. We publish no decibel figures because we have not measured this design — expect modest, not miraculous.

• 140 mm Whatsminer fan face — the size most silencers ignore
• Reactive chamber sized with an 8-inch outlet to limit the pressure penalty
• No absorptive lining to degrade or shed
• Single continuous body, no assembly

Specifications

Open source — print it yourself, or buy it finished

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.

Works with

• Whatsminer 140 mm Fan to 8″ Duct Shroud
• Whatsminer 140 mm Fan to 6″ Duct Shroud
• Antminer S19 / S21 Dual 120 mm to 8″ Expansion-Chamber Shroud Silencer
• 140 mm Intake Filter Ring

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

Frequently asked questions