---
product_id: 260523347
title: "Gas Cylinder Heavy Duty for Herman Miller Classic Aeron Chair as Replacement"
brand: "mingyi.office"
price: "21287 kr"
currency: ISK
in_stock: true
reviews_count: 5
category: "Ming Yi.Office"
url: https://www.desertcart.is/products/260523347-gas-cylinder-heavy-duty-for-herman-miller-classic-aeron-chair
store_origin: IS
region: Iceland
---

# 4.5-inch smooth seat height travel Class 4 heavy-duty gas lift 350 lbs load capacity, ANSI/BIFMA certified Gas Cylinder Heavy Duty for Herman Miller Classic Aeron Chair as Replacement

**Brand:** mingyi.office
**Price:** 21287 kr
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your Aeron experience — heavy-duty precision for the modern professional!

## Quick Answers

- **What is this?** Gas Cylinder Heavy Duty for Herman Miller Classic Aeron Chair as Replacement by mingyi.office
- **How much does it cost?** 21287 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/260523347-gas-cylinder-heavy-duty-for-herman-miller-classic-aeron-chair)

## 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

- • **Built to Endure:** Class 4 gas cylinder engineered to exceed ANSI/BIFMA5.1-2011 standards, supporting up to 350 pounds with unwavering stability.
- • **Seamless Compatibility:** Designed exclusively for Herman Miller Classic Aeron chairs (1996-2012 models) ensuring a flawless fit and performance.
- • **Upgrade Your Workspace:** Restore your iconic Aeron chair’s premium comfort and height adjustability—because your productivity deserves the best.
- • **Precision Height Control:** Effortlessly adjust your Aeron chair with a robust 4.5-inch pneumatic stroke for perfect ergonomic alignment.
- • **Trusted Quality Assurance:** Backed by a 5-year replacement warranty and manufactured by Samhongsa, a leader with eight global certifications and decades of expertise.

## Overview

The MingYi.office Class 4 gas cylinder is a premium replacement part for Herman Miller Classic Aeron chairs made between 1996 and 2012. Featuring a 4.5-inch pneumatic height adjustment stroke, it supports up to 350 pounds and surpasses ANSI/BIFMA5.1-2011 standards. Manufactured by Samhongsa, a trusted industry leader with multiple global certifications, this cylinder offers a 5-year warranty, ensuring durability and seamless compatibility to restore your chair’s ergonomic excellence.

## 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.

Review: Lesson to learn - I am updating this as I had left a scathing review. After about three weeks it seemed like it was collapsing when someone say in it. Ends up I had to tweak the height adjuster screw just a bit out and it is all good again. Right now would buy again
Review: Heavy Duty It Is NOT! Cheap and Nasty and Will Not Last - On arrival this gas cylinder looked excellent. Well packaged and arrived quickly. Instructions were almost non-existent - "go find a YouTube video...." - and no mention of the tools you would need (a pipe wrench and a solid, non-damaging mallet). However, I overcame these obstacles quite easily and managed to get it swapped over. My original chair gas cylinder for my Herman Miller Classic Aeron Chair has lasted from 2004 until 2023 and took a bit of effort to remove, but I got it removed and replaced it with this and made the necessary adjustments so it worked perfectly - hooray! After just 2 days I noticed the chair felt a little wobbly from side to side and front to back. Everytime I move in the chair it feels more unstable. The photo shows where the top part of the wider section of the cylinder seems to be coming away from the main section, and this is what is causing the wobbling. The video shows the actual extent of the problem, with the top part rocking from side to side, and this is getting worse every day and I'm sure will eventually break away completely. I'll be returning this and buying something else.

## Features

- Listing is for a brand new never used CLASS 4, office chair seat height adjustment pneumatic gas lift cylinder. 4.5" stroke (seat travel from lowest to highest settings).
- 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: 16" Travel: 4.5", 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 2.
- Cylinder for Aeron Chair Size A, B and C, offer 5 years replacement warranty.Only For Aeron chair made between 1996-2012.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07QF8XDCQ |
| Additional Features | Heavy, Heavy Duty, Gas, Travel, Height Adjustment, Seat |
| Age Range Description | Adult |
| Arm Style | Armless |
| Back Style | Mesh Back |
| Brand | MingYi.office |
| Brand Name | MingYi.office |
| Chair Backrest Width | 420 Millimeters |
| Color | White |
| Colour | White |
| Cushion Style | Boxed Edge |
| Customer Reviews | 4.3 out of 5 stars 272 Reviews |
| Fill Material | Foam |
| Finish Types | Lacquered |
| Frame Material Type | Alloy Steel |
| Furniture Base Movement | Glide |
| Furniture Finish | Stainless Steel |
| Included Components | Arm Pad |
| Indoor Outdoor Usage | Indoor |
| Is Customizable? | No |
| Is Electric | No |
| Is Foldable | No |
| Item Dimensions D x W x H | 5.1D x 5.1W x 30H centimeters |
| Item Weight | 1.15 Kilograms |
| Item height | 25 inches |
| Item weight | 1.15 Kilograms |
| Leg Style | Pedestal |
| Manufacturer | Samhongsa |
| Material | Alloy Steel |
| Material Type | Alloy Steel |
| Maximum Weight Recommendation | 158.76 kg |
| Model Name | Classic Aeron |
| Model Number | Cylinder-H |
| Number of Height Positions | 1 |
| Pattern | Solid |
| Product Care Instructions | Wipe Clean |
| Product dimensions | 5.1D x 5.1W x 30H centimeters |
| Reclining Position Count | 1 |
| Recommended Uses For Product | Office |
| Room Type | Office |
| Seat Back Interior Height | 450 Millimeters |
| Seat Depth | 45 centimeters |
| Seat Height | 16 Inches |
| Seat Length | 560 |
| Seat Material | Foam |
| Shape | House |
| Size | 2D x 2W x 11.8H in |
| Style Name | Classic |
| Surface Recommendation | Hard Floor |
| Theme | Space |
| Tilting | No |
| UPC | 778862838788 743832019153 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** MingYi.office
- **Colour:** White
- **Material:** Alloy Steel
- **Product dimensions:** 5.1D x 5.1W x 30H centimeters
- **Size:** 2D x 2W x 11.8H in

## Images

![Gas Cylinder Heavy Duty for Herman Miller Classic Aeron Chair as Replacement - 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

### ⭐⭐⭐⭐⭐ Lesson to learn
*by C***Y on 22 January 2022*

I am updating this as I had left a scathing review. After about three weeks it seemed like it was collapsing when someone say in it. Ends up I had to tweak the height adjuster screw just a bit out and it is all good again. Right now would buy again

### ⭐ Heavy Duty It Is NOT! Cheap and Nasty and Will Not Last
*by G***C on 29 May 2023*

On arrival this gas cylinder looked excellent. Well packaged and arrived quickly. Instructions were almost non-existent - "go find a YouTube video...." - and no mention of the tools you would need (a pipe wrench and a solid, non-damaging mallet). However, I overcame these obstacles quite easily and managed to get it swapped over. My original chair gas cylinder for my Herman Miller Classic Aeron Chair has lasted from 2004 until 2023 and took a bit of effort to remove, but I got it removed and replaced it with this and made the necessary adjustments so it worked perfectly - hooray! After just 2 days I noticed the chair felt a little wobbly from side to side and front to back. Everytime I move in the chair it feels more unstable. The photo shows where the top part of the wider section of the cylinder seems to be coming away from the main section, and this is what is causing the wobbling. The video shows the actual extent of the problem, with the top part rocking from side to side, and this is getting worse every day and I'm sure will eventually break away completely. I'll be returning this and buying something else.

### ⭐⭐⭐⭐⭐ Excellent aftermarket cylinder for Aeron
*by A***1 on 21 September 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.

## 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)

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-01-25*