Fan Shroud for 150mm duct 120mm fan Antminer A3,B3,DR3,S9,X3,V9,Z9 High Temp ABS

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Seller: evildeece ✉️ (2,763) 100%, Location: Downer, ACT, AU, Ships to: AU, NZ, Item: 332811776126 Fan Shroud for 150mm duct 120mm fan Antminer A3,B3,DR3,S9,X3,V9,Z9 High Temp ABS. This is a 3d printed fan shroud that I designed and 3d printed myself. It is made from durable ABS plastic, and allows you to connect a 150mm flexible duct to your miner's exhaust, allowing you to vent the hot air directly outside (or in winter, into your air conditioning ducts). For longer runs, I have found that a 150mm duct is the minimum required to allow airflow from the machine, anything smaller increases the backpressure, which leads to higher temperatures. A 500mm duct tie is supplied to fasten the ducting on, but you may also use a 150mm diameter screw clamp. Mounting screws to suit an Antminer S9/D3/L3+ are included, as the original screws are too short to reach through our thicker base. Other designs use a recess for the screw, which leaves little support material and a higher risk of breaking. On an S9, one screw has about 2mm clearance to a capacitor on a hash board. You can increase this clearance if you wish by adding additional washers to the one screw which is affected (I am running my S9s without additional clearance, and they run fine, but given the cost of replacing a hash board, you may want the extra safety margin that the washers provide). Colour will depend on available material.

Comparison

Here's a quick comparison of our design vs. other shrouds you may find:

OursTheirsBenefit
MaterialHigh temperature ABS PLA ABS can better withstand the hot exhaust air from the ASICs, which can reach 90 degrees or more. PLA has a glass transition temperature (point at which it softens) of around 60°C-65°C, while ABS is around 105°C. This means that an ABS part will be a lot more durable in the punishing environment of an Antminer exhaust. If a vendor doesn't specify the material, it will likely be PLA, since it is much easier to print large items.
Flange designNegative taper flange Straight flange Negative taper flanges increase the retention pressure when the duct is pulled, making it less likely that duct will come loose.
Base designThicker base with replacement screws Thinner base with recessed OEM screws With more support material, our base is less likely to break where the screws attach.
General designFew sharp internal edges Many sharp internal edges Sharp internal edges concentrate forces on the shroud, making it more likely to break at these points.
AccessoriesDuct ties included No duct ties included Duct ties aren't expensive, but it is one extra thing you need to buy, and they generally come in packs of 50 when you only need one. We save you the hassle of tracking down a sufficiently long duct tie.
ExtensionsCompatible with our Antminer A3/X3/L3+/D3 Cowls Incompatible with our cowls Our cowls have been specifically designed to work in conjunction with our shrouds to mount securely with our cowls, without having the screws penetrate too far into the machine.

Which Shroud do I need?
ItemPriceDirectionUsage
100mm Fan Shroud $16.00 Intake/Exhaust Never, unless you have ideal situations, high backpressure can result in overheating
125mm Fan Shroud $18.00 Intake/Exhaust Short (<1m), relatively straight duct runs
150mm Fan Shroud $20.00 Intake/Exhaust Longer or curvy duct runs, Antminers mounted on shelves where the duct can sit below the bottom of the machine
150mm Flat Mount Fan Shroud $20.00 Intake/Exhaust Longer or curvy duct runs, Antminers mounted on the floor, or other situations where the low duct position causes mounting problems
150mm 9 Vane Laminar Flow Fan Shroud $25.00 Exhaust Longer, relatively straight duct runs, where you want the most airflow possible. The exhaust fan should have 9 support vanes (contact me if you need an 8 vane version)
Antminer D3/L3+ Cowl $15.00 Exhaust Used to capture & extract hot air from the upper vents of the Antminer D3 & L3+, used in conjunction with one of the above shrouds
Antminer A3/X3 Cowl $15.00 Exhaust Used to capture & extract hot air from the upper vents of the Antminer A3 & X3, used in conjunction with one of the above shrouds

Payment

As well as Paypal, I also accept cryptocurrency payments. Please choose "other" as the payment method, then leave me a message stating which currency you would like to pay in (BTC, BCH, ETH or LTC). I will respond with the amount (based on the current Coingecko price) and the wallet to transfer to.

  • Condition: Brand new, 3D printed from ABS, will not soften under exhaust temperatures

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