---
product_id: 241985461
title: "Gas Cylinder Heavy Duty for Herman Miller Classic Aeron Chair as Replacement"
brand: "mingyi.office"
price: "27628 som"
currency: KGS
in_stock: true
reviews_count: 7
category: "Ming Yi.Office"
url: https://www.desertcart.kg/products/241985461-gas-cylinder-heavy-duty-for-herman-miller-classic-aeron-chair
store_origin: KG
region: Kyrgyzstan
---

# 4.5" adjustable stroke Class 4 heavy-duty gas lift 350 lbs load capacity Gas Cylinder Heavy Duty for Herman Miller Classic Aeron Chair as Replacement

**Brand:** mingyi.office
**Price:** 27628 som
**Availability:** ✅ In Stock

## Summary

> ⚙️ Elevate your Aeron experience — because your throne deserves the best!

## 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?** 27628 som with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/241985461-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 Last:** Class 4 cylinder exceeding ANSI/BIFMA5.1-2011 standards ensures durability under heavy use.
- • **Trusted Warranty:** 5-year replacement warranty for peace of mind and long-term reliability.
- • **Pro-Level Upgrade:** Engineered by Samhongsa, a global leader with certifications from BIFMA, LGA, TUV, and SGS.
- • **Universal Aeron Fit:** Compatible with Herman Miller Aeron chairs Size A, B, and C (1996-2012 models).
- • **Precision Height Control:** Smooth 4.5-inch pneumatic seat adjustment for perfect ergonomic positioning.

## Overview

The MingYi.office Class 4 gas cylinder is a premium pneumatic lift designed specifically for Herman Miller Classic Aeron chairs (1996-2012). Featuring a 4.5-inch adjustable stroke and a robust 350-pound load capacity, it surpasses ANSI/BIFMA5.1-2011 durability standards. Backed by a 5-year warranty and crafted by Samhongsa, a trusted industry leader, this cylinder promises precise height control and reliable performance to keep your workspace ergonomic and stylish.

## Description

Product 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. Safety Warning This gas cylinder has a load capacity of 350 pounds. If the chair cannot lift normally after installation, adjust two screws located near where the cable attaches, as shown in photo 2.

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.
Review: broke within a few months - Unfortunately this cyliner only worked for a few months before it started to leak...

## 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 |
| Best Sellers Rank | 789,546 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 1,584 in Desk Chairs |
| Brand | MingYi.office |
| Colour | Black |
| Customer Reviews | 4.3 4.3 out of 5 stars (272) |
| Date First Available | 4 April 2019 |
| Delivery information | We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout. |
| Item Weight | 1.15 kg |
| Model Number | Cylinder-H |
| Product Dimensions | 63.5 x 63.5 x 63.5 cm; 1.15 kg |

## Product Details

- **Brand:** MingYi.office
- **Colour:** Black
- **Material:** Alloy Steel
- **Product dimensions:** 63.5D x 63.5W x 63.5H centimetres
- **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

### ⭐ 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.

### ⭐ broke within a few months
*by B***A on 26 November 2024*

Unfortunately this cyliner only worked for a few months before it started to leak...

### ⭐⭐⭐⭐⭐ Review
*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

## 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?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.kg/products/241985461-gas-cylinder-heavy-duty-for-herman-miller-classic-aeron-chair](https://www.desertcart.kg/products/241985461-gas-cylinder-heavy-duty-for-herman-miller-classic-aeron-chair)

---

*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-01-25*