MingYi.office New Pneumatic Gas Cylinder for Herman Miller Aeron Chair #1B08VM, Chair Lifting Accessories, Black
Condition: New
$49.99
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Availability:
Only 5 left in stock, order soon!
Arrives
Nov 16 – Nov 17
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At a glance
- Condition
- New
- Dimensions
- 1.97 x 1.97 x 11.81 in
- Weight
- 1.68 kg
- Color
- Black
- Material
- Metal
- Size
- 2D x 2W x 11H
- Additional Features
- Ergonomic
- In the box
- Gas Cylinder
Features 5
- Listing is for a brand new never used CLASS 4 WITH 400N, office chair seat height adjustment pneumatic gas lift cylinder. 5.0" stroke (seat travel from lowest to highest seatings).
- Exceeds ANSI/BIFMA5.1-2011 standards, based on the specs of this cylinder, it's load capacity is 400 pounds.
- Cylinder Diameter: 28mm (1.1") Column Diameter: 50mm (approx 2").
- Cylinder for Size A, B and C Aeron Chair. offer 5 years replacement warranty.
- Only Available for Classic Aeron chair made between 1996-2012.
Description
Package Include: 1 x gas cylinder(chair not included.) Samhongsa was founded in 1971, is a professional production and sales of Cylinder for office chair. Samhongsa have advanced production equipment and testing equipment and improved management system. Samhongsa always insist on the operation idea of “human-oriented, honesty first, lean management and excellence” Providing perfect quality and service for users and possess the good reputation. Samhongsa’s cylinder have acquired and through eight world standards certifications(Such as: BIFMA；LGA；TUV；SGS, ect.). Samhongsa have built a friendly, long-term with Herman Miller, Allsteel, Steelcase, HON, etc. world- renowned brands. Only For Aeron chair made between 1996-2012.
Specs 51
| Brand | MingYi.office |
|---|---|
| Color | Black |
| Material | Metal |
| Product Dimensions | 2"D x 2"W x 11"H |
| Size | 2D x 2W x 11H |
| Brand Name | MingYi.office |
| Additional Features | Ergonomic |
| Unit Count | 1 Count |
| Recommended Uses For Product | Office |
| Room Type | Office |
| Age Range Description | Adult |
| Model Name | Cy-OAR |
| Surface Recommendation | Hard Floor |
| Indoor Outdoor Usage | Indoor |
| Model Number | Cy-OAR |
| UPC | 743832019160 |
| Manufacturer | SHS |
| Manufacturer Part Number | Cy-OAR |
| Number of Items | 1 |
| Material Type | Metal |
| Frame Material Type | Metal |
| Product Care Instructions | Wipe Clean |
| Seat Material | Vinyl |
| Fill Material | Sponge |
| Furniture Base Movement | Glide |
| Reclining Position Count | 1 |
| Number of Height Positions | 1 |
| Back Style | Solid Back |
| Style Name | Classic |
| Pattern | Solid |
| Finish Types | Unfinished |
| Theme | Space |
| Shape | Round |
| Arm Style | With arms |
| Furniture Finish | Wenge |
| Cushion Style | Boxed Edge |
| Leg Style | Tapered Leg |
| Form Factor | Armchair |
| Subject Character | Black |
| Item Dimensions D x W x H | 2"D x 2"W x 11"H |
| Item Weight | 1.68 kg |
| Seat Back Interior Height | 45 centimeters |
| Seat Height | 42 centimeters |
| Seat Depth | 18.9 inches |
| Seat Length | 50 centimeters |
| Arm Height | 62 centimeters |
| Chair Backrest Width | 42 centimeters |
| Item Depth | 2 inches |
| Item Dimensions | 1.97 x 1.97 x 11.81 inches |
| Maximum Weight Recommendation | 350 pounds |
| Assembly Instructions Description | No assembly required |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Nov 16 – Nov 17
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Perfect Fit and Perfect Performance in Aeron
Fits perfectly in my old Aeron chair. Had to turn the set screw a few times and viola, putting some life into an old Aeron chair with an old stuck cylinder that was sinking. It actually works a lot better than the old Stabilus cylinder that HM used to use in Aerons.
Reviewed in the United States on July 21, 2026 by Angel Flores
Yes, this will make your Aeron sit lower!
If you are looking to get your Aeron to sit lower then its ~16 lowest height this cylinder will do it! It will drop the height to 14". As for the quality itself it felt very sturdy and sits well in the chair. I'd say it felt more robust than the OEM part. installation was fairly easy (I followed a tutorial on YouTube) but I'd strongly advise you to get a pipe wrench or something similar to detach the old cylinder as I tried doing that with visegrips which worked but I broke a serious sweat doing so and I had to extend the grips to get better torque. Overall I am very satisfied with this product because my bum doesn't get numb anymore due to the chair being too high for me.
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Reviewed in the United States on August 14, 2026 by Matt
Great Replacement for the Aeron Classic
Works as advertised. Fits the Classic Aeron. Zero complaints. Very satisfied with this purchase. Instructions: You’ll need a hammer, wd40 or a penetrating oil, and an 11/16 socket. Optional: patience, swear jar. 1. First remove the seat. (Use a hex key/Allen wrench). 2. Prepare to remove the wheel base by applying degreaser/wd40 to the points where the cylinder is attached. 3. Wrap a towel around wheel base and gently use a mallet to knock it loose/off. 4. Remove the the plastic hardware lid by gently prying it open. Place aside. 5. Use a philips screwdriver, to remove the two screws holding the pneumatic lever. 6. Place chair at an angle over a bench or chair. (Pneumatic cylinder facing down at an angle.) 7. Place an 11/16 socket on top of where you removed the pneumatic lever lid. (From Step 5. The removed lever lid reveals the hole where the pneumatic cylinder is affixed.) 8. Whack the hell out of the 11/16 socket with a hammer. If it is properly degreased, it will shoot right out. 9. Attach the new cylinder to the wheel base. 10. Place chair on top of cylinder and wheel base. 11. Replace the two screws from step 5. Adjust the screw that sits on top of the new cylinder. The height/position of this screw will either increase or decrease the rate at which the chair goes up and down. 12. Repeat steps to re-assemble. (This point is a great time to deep clean the chair). 13. ???? 14. Profit :)
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Reviewed in the United States on September 3, 2022 by Justin
OEM-like replacement part -- excellent product
My 1997 Aeron B Classic gas cylinder needed replacement. At first, thought I would need a new chair. After some research, realized that a total cylinder swap out was needed. Definitely worth going that route vs. trying to fix original cylinder with bearing/washer kit replacement kit. Its a fairly easy repair with the right tools. As others mentioned, remove the 5 spoke base. I hammered the bottom end of cylinder from the underside vs trying to mallet tap it out topside on the spoke base, idea not mar or scratch the base. Removing the top end of cylinder from the chair is a little trickier. I removed the mesh seat base which is pretty easy -- 4 screws -- and remove the plastic cover. From there set chair on workbench and used a socket to drive cylinder out from the top. Used a little Liquid Wrench before doing this. The alternate way for the top side cylinder removal is try to get a pipe wrench on the bottom side of the cylinder underneath chair and twist it out. Advantage is not having to remove the mesh seat base. But for my chair, this required so much torque to loosen that it wouldn't work. So as others have mentioned, going at it from the top side was the way to go. After a few hard blows with a ball peen hammer it came out. The new part itself is very stable, fit perfect on both ends, and actually raises the chair up a bit higher than the original. Wish I would have done this years ago!
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Reviewed in the United States on May 16, 2022 by cffnm74
its okay
I had to add a piece of paper between the cylinder and the base because the bottom of the cylinder was touching the floor the cylinder stroke is also shorter than expected. the wobbling stopped it feels very stable now that's what I was hoping for. the movement and rotation are very smooth.
Reviewed in the United States on January 11, 2026 by Mohamad
Works on Aeron Chairs
While there are cheaper “fits all office chairs” options, this one works. It has the correct small button on top of the cylinder, which seems to be the trick. The other one I tried had a larger button, which seemed to hit the top of the socket where it fit, and caused it to slowly leak down and settle. I’m nearly 2m tall, so that was not appreciated. No way any of these will ever be “easy” to install. You need a five tonne press or a 2kg mallet to drive it out of the base, and a clamp-based tool (which did come with the other cylinder, so not money wasted) to prise it out of the socket on the bottom of the seat. So the difficulty factor is due to the press fit of the cylinder in Herman Miller’s design (and that of most other chairs), rather than this vendor. Aggravating, a little expensive, but good. And less costly than buying a new Aeron chair. I can recommend this if you are having problems with an older Herman Miller Aeron chair. If the vendor included the clamp tool to remove from the seat base, I would highly recommend.
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Reviewed in the United States on July 8, 2023 by Amazon Customer
Solid, Stout Replacement Cylinder
With the right tools and after reading these reviews, that install was a breeze! I had heard the war stories of having to fight with a pipe wrench to get the old cylinder unseated from the assembly, however, the approach with the 18mm deep socket and 2 lb hammer had it out in 3 swings. I have an Aeron classic from '06 so naturally I thought I'd be fighting against 17 years of stubbornness to get it out of that assembly. Fortunately it came right out with a few, well placed swings from above that cylinder head. Honestly I'm not sure why all the YouTube install videos still push the pipewrench narrative but in my opinion, the punch out method seems to be the most effective technique by a long shot. Much to my delight it was quite therapeutic as well. As for the new cylinder, Im 6' 3" and 205 lbs. It's a pretty stout resistance which I was delighted to find after sinking about 4 inches every time I sat down on the old one. This thing is solid and highly recommended to give any high mileage Aeron out there a much needed face-lift. Just wanna give a shout out to everyone in these reviews that gave a detailed breakdown of the disassembly because it 100% saved me a full day of heartache and head scratching!
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Reviewed in the United States on July 16, 2023 by carlan robertson
Don't mess around with a pipe wrench
Cylinder seems to work fine, but its been less than an hour so I'd hope so. I wanted to pitch in my two cents about installation. After a couple hours of wrestling with my pipe wrench, I decided there's got to be a better way. Lo and behold, I found a method on YouTube of hammering out the cylinder which I found much easier to do: (1) remove seat with 6 mm hex key. (2) remove mechanism cover by hitting the back a couple times and prying off (my chair is ancient and this was easy to do without damage). (3) you'll see that the cable connects to a lever that actuates the tube. Remove the two screws from the assembly that the lever sits on and push it out of the way (you can’t take it off completely because of the cable, which is mildly irksome). (4) take an 18mm socket, put it over the cylinder which is now exposed, and whack it a few times with your hammer. Mine was pretty stuck in there, so it took a good amount of force to get out. It'll pop out eventually, so don't despair. Then you whack the cylinder out of the chair base, drop in your new one, and reassemble. I found this much easier than the pipe wrench method and it just takes a little bit of set up.
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Reviewed in the United States on March 20, 2023 by Troubleshooter