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MingYi.office

MingYi.office New Pneumatic Gas Cylinder for Herman Miller Aeron Chair #1B08VM, Chair Lifting Accessories, Black

  • Based on 364 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Monday, Aug 24
Order within 13 hours and 57 minutes
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Features

  • 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.

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


Included Components: Gas Cylinder


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: Metal


Fill Material: Sponge


Furniture Base Movement: Glide


Reclining Position Count: 1


Number of Height Positions: 1


Color: Black


Back Style: Solid Back


Style Name: Classic


Pattern: Solid


Finish Types: Unfinished


Theme: Space


Shape: Round


Arm Style: Armless


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


Size: 2D x 2W x 11H


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


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Aug 24

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.

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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
    • 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! ... show more
Reviewed in the United States on May 16, 2022 by cffnm74
    • Perfect match for 1999 Aeron chair.
Fit a 1999 Aeron chair perfectly. The cylinder is identical to the original both in diameter and height. Great fix to keep this chair going. I will report back about longevity after we have used it for a while.
Reviewed in the United States on March 1, 2026 by axle
    • 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! ... show more
Reviewed in the United States on July 16, 2023 by carlan robertson
    • 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
    • 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 :) ... show more
Reviewed in the United States on September 3, 2022 by Justin
    • Perfect replacement for Aeron-C
This cylinder was a perfect replacement for my Aeron-C chair which developed a death wobble that finally got to be too much. Installation was easy using an 18 inch pipe wrench and 20 oz framing hammer. Did not need to use an extension on the wrench but did need to bear down to get it to break free from the seat. Removal from the base was easy enough, just a few good whacks with the hammer and the old cylinder dropped right out. I feel this replacement is good quality and should last based on the weight of the new cylinder, time will tell. I chose this one based on reviews for aeron chairs and not on price. No more wobble. ... show more
Reviewed in the United States on April 8, 2025 by Dubblbubbl
    • 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. ... show more
Reviewed in the United States on March 20, 2023 by Troubleshooter

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