--- product_id: 143354091 title: "MingYi.office Heavy Duty Gas Cylinder Replacement for Herman Miller Classic Aeron Chair, Class 4 TUV" brand: "mingyi.office" price: "€ 98.85" currency: EUR in_stock: true reviews_count: 13 category: "Ming Yi.Office" url: https://www.desertcart.gr/products/143354091-mingyi-office-heavy-duty-gas-cylinder-replacement-for-herman-miller store_origin: GR region: Greece --- # 4-inch smooth height adjustment travel Fits all Aeron chair sizes A, B & C Class 4 TUV certified heavy-duty gas lift MingYi.office Heavy Duty Gas Cylinder Replacement for Herman Miller Classic Aeron Chair, Class 4 TUV **Brand:** mingyi.office **Price:** € 98.85 **Availability:** βœ… In Stock ## Summary > πŸͺ‘ Upgrade your Aeron, upgrade your workspace β€” don’t settle for less! ## Quick Answers - **What is this?** MingYi.office Heavy Duty Gas Cylinder Replacement for Herman Miller Classic Aeron Chair, Class 4 TUV by mingyi.office - **How much does it cost?** € 98.85 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/143354091-mingyi-office-heavy-duty-gas-cylinder-replacement-for-herman-miller) ## Best For - mingyi.office enthusiasts ## Why This Product - Trusted mingyi.office brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **5-Year Peace of Mind:** Backed by a generous 5-year replacement warranty for long-term confidence - β€’ **Heavy Load? No Problem:** Supports up to 350 pounds with rock-solid stability - β€’ **Effortless Height Control:** 4-inch travel ensures perfect ergonomic positioning every time - β€’ **Universal Aeron Compatibility:** Seamlessly fits Classic Aeron chairs from 1996-2012, sizes A, B, and C - β€’ **Built to Last, Certified to Perform:** Exceeds ANSI/BIFMA5.1-2011 standards for durability and safety ## Overview The MingYi.office Heavy Duty Gas Cylinder is a Class 4 TUV certified replacement part designed specifically for Herman Miller Classic Aeron chairs made between 1996 and 2012. It offers a robust 350-pound load capacity, smooth 4-inch height adjustment, and fits all Aeron sizes (A, B, and C). Exceeding ANSI/BIFMA5.1-2011 durability standards, this cylinder comes with a 5-year warranty, ensuring your iconic chair stays ergonomic and reliable for years to come. ## Description Buy MingYi.office Heavy Duty Gas Cylinder Replacement for Herman Miller Classic Aeron Chair, Class 4 TUV: Home Office Desk Chairs - desertcart.com βœ“ FREE DELIVERY possible on eligible purchases Review: Excellent aftermarket cylinder for Aeron - This China aftermarket gas cylinder for Aeron was EASY to install, fit perfectly and worked immediately upon installation. I DID have an extremely difficult time removing the original HM cylinder from the chair. It had been there for decades. The online videos made the removal look way easier than it was. It took a number of overnight WD-40 soaking, the biggest heaviest pipe wrench I could get and a LOT of aggression in numerous sessions to incrementally move that old cylinder a few millimeters at a time. When it finally came out, the new one slipped in like a charm, what a surprise, it was a good quality purchase. The chair being an original HM Aeron would cost close to $1K to replace...and was a Great Incentive to put up with the hassle. Review: Get ready to wrench that old cylinder right out of there! - 25 year old Herman Miller Aeron chair that's done right be me all this time finally gave up the ghost a few days ago, the cylinder extended to its full height in its dying gasp and wouldn't go down and when I sat down on it I wobbled around disconcertingly. Being uneducated about the cylinder replacement I tried to force it down until it ended up all the way down and wouldn't go back up, laugh. I watched the replacement videos and thrilled to the prospect of using my large pipe wrench for the second time. New one arrived and boy the reviews and testimonials about removing old crusted cylinders was really spot on in my case. It took WD-40 and multiple angle attempts, I think I finally did it by pulling the wrench towards me like I was rowing! Once that was done, and knocking out the old cylinder from the legs with a hammer it was an easy peasy replacement. Note, remember to take off the protective tip on the new cylinder so you expose the green part. I had to adjust the set screw as others have w/ a 5/32 hex wrench, I didn't have to take off the seat I just popped the shroud off and wrenched it from the back. Now I'm back in business with my old war-horse. Will it be another 25 years? We'll see. Recommended. (j4.) ## Features - Heavy Duty Gas lift cylinder For Hermanmiller Classic Aeron Office Chair, Class 4 TUV. - Exceeds ANSI/BIFMA5.1-2011 standards, based on the specs of this cylinder, it's load capacity is 350 pounds. - Length Compressed: 11.5" Fully Extended: 15.5" Travel: 4.0", Cylinder Diameter: 28mm (1.1") Column Diameter: 50mm (approx 2") - After install, If the chair can't lift normally. Two screws located near where the cable attaches need to be adjusted, see photo 4. - Cylinder Can fit Aeron Chair Size A, B and C, offer 5 years replacement warranty.Only For Classic Aeron chair made between1996-2012. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07QF8XDCQ | | Additional Features | Ergonomic | | Age Range Description | Adult | | Arm Style | Armless | | Assembly Instructions Description | Already assembled | | Back Style | Solid Back | | Best Sellers Rank | #538,258 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #1,300 in Home Office Desk Chairs | | Brand | MingYi.office | | Brand Name | MingYi.office | | Chair Backrest Width | 42 centimeters | | Color | Black | | Cushion Style | Boxed Edge | | Customer Reviews | 4.3 out of 5 stars 295 Reviews | | Fill Material | Foam | | Finish Types | Unfinished | | Form Factor | Metal | | Frame Material Type | Metal | | Furniture Base Movement | Glide | | Furniture Finish | Stainless Steel | | Indoor Outdoor Usage | Indoor | | Item Depth | 25 inches | | Item Dimensions | 2.36 x 2.36 x 11.81 inches | | Item Dimensions D x W x H | 25"D x 25"W x 25"H | | Item Weight | 1.15 kg | | Leg Style | Tapered Leg | | Manufacturer | Samhongsa | | Manufacturer Part Number | Cylinder-H | | Material | Metal | | Material Type | Metal | | Maximum Weight Recommendation | 350 pounds | | Model Name | Cylinder for Classic Aeron | | Model Number | Cylinder-H | | Number of Height Positions | 1 | | Number of Items | 1 | | Pattern | Solid | | Product Care Instructions | Wipe Clean | | Product Dimensions | 25"D x 25"W x 25"H | | Reclining Position Count | 1 | | Recommended Uses For Product | Office | | Room Type | Office | | Seat Back Interior Height | 45 centimeters | | Seat Depth | 17.72 inches | | Seat Height | 42 centimeters | | Seat Length | 56 centimeters | | Seat Material | Nylon | | Shape | Round | | Size | 2D x 2W x 11.8H | | Style Name | Classic | | Surface Recommendation | Hard Floor | | Theme | Space | | UPC | 778862838788 743832019153 | | Unit Count | 1 Count | ## Product Details - **Brand:** MingYi.office - **Color:** Black - **Material:** Metal - **Product Dimensions:** 25"D x 25"W x 25"H - **Size:** 2D x 2W x 11.8H ## Images ![MingYi.office Heavy Duty Gas Cylinder Replacement for Herman Miller Classic Aeron Chair, Class 4 TUV - Image 1](https://m.media-amazon.com/images/I/41YGR3Z6a9L.jpg) ## Questions & Answers **Q: Does this make the chair taller?** A: Yes, it makes the chair Taller. The original Herman Miller cylinder sit about 2 inches past the wheel base. The heavy duty cylinder sold here sits taller as it doesn’t go past the base. Hope this helps! **Q: What are the bottom taper dimensions?** A: about 45mm, thank you! **Q: does this come with the bearing already installed** A: Yes, the bearing installed already, Inside outer tube, thank you! **Q: How can you tell how old the chair is (if it is between 1996 and 2012)?** A: Check the serial number and or Part numbers on the chair. Call the manufacturer my chair was a Herman Miller chair and they were able to tell me when it was sold to me and that I had a 10-year warranty... S0 the numbers on the chair sometimes indicate MFG year. Good Luck ## Customer Reviews ### ⭐⭐⭐⭐⭐ Excellent aftermarket cylinder for Aeron *by A***1 on September 21, 2023* This China aftermarket gas cylinder for Aeron was EASY to install, fit perfectly and worked immediately upon installation. I DID have an extremely difficult time removing the original HM cylinder from the chair. It had been there for decades. The online videos made the removal look way easier than it was. It took a number of overnight WD-40 soaking, the biggest heaviest pipe wrench I could get and a LOT of aggression in numerous sessions to incrementally move that old cylinder a few millimeters at a time. When it finally came out, the new one slipped in like a charm, what a surprise, it was a good quality purchase. The chair being an original HM Aeron would cost close to $1K to replace...and was a Great Incentive to put up with the hassle. ### ⭐⭐⭐⭐⭐ Get ready to wrench that old cylinder right out of there! *by J***V on June 20, 2024* 25 year old Herman Miller Aeron chair that's done right be me all this time finally gave up the ghost a few days ago, the cylinder extended to its full height in its dying gasp and wouldn't go down and when I sat down on it I wobbled around disconcertingly. Being uneducated about the cylinder replacement I tried to force it down until it ended up all the way down and wouldn't go back up, laugh. I watched the replacement videos and thrilled to the prospect of using my large pipe wrench for the second time. New one arrived and boy the reviews and testimonials about removing old crusted cylinders was really spot on in my case. It took WD-40 and multiple angle attempts, I think I finally did it by pulling the wrench towards me like I was rowing! Once that was done, and knocking out the old cylinder from the legs with a hammer it was an easy peasy replacement. Note, remember to take off the protective tip on the new cylinder so you expose the green part. I had to adjust the set screw as others have w/ a 5/32 hex wrench, I didn't have to take off the seat I just popped the shroud off and wrenched it from the back. Now I'm back in business with my old war-horse. Will it be another 25 years? We'll see. Recommended. (j4.) ### ⭐⭐⭐⭐⭐ Over a year later and hours of use every day, it still works perfectly *by R***Y on March 16, 2025* It's been almost a year and my very expensive chair is still working as good as new. I work from home so every single day I'm at my desk for 8-12 hours. This has stood the test of time. I watched videos as to how to remove the older parts (that was hard part), and this installed perfectly. My desk is higher than normal and I got a model that extends further and I am so happy I did. This is definitely worth every penny, especially since I don't have to spend $800-1200 for a new chair! ## Frequently Bought Together - Gas Cylinder Heavy Duty for Herman Miller Classic Aeron Chair as Replacement - Lumbar Support Pad Replacement for Herman Miller Classic Aeron Chair - Size B: Medium,Black - Seat Pad Foam Insert Replacement for Herman Miller Classic Aeron Office Chair A B C Size (Black, A/B) --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.gr/products/143354091-mingyi-office-heavy-duty-gas-cylinder-replacement-for-herman-miller](https://www.desertcart.gr/products/143354091-mingyi-office-heavy-duty-gas-cylinder-replacement-for-herman-miller) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-08-21*