Office Chair Cylinder Replacement 5.9" Stroke Heavy Duty Class 4

So my Real Space DRG gaming chair was sinking. I read the reviews and checked that my chair was compatible with this Cylinder replacement. Google told me that my chair had the most common cylinder with a 2" (50mm) base. I ordered this Huiguli cylinder to replace my old one. Taking the old cylinder off was a little tough, as mentioned in many other reviews. I tried to hammer the swivel base with casters off the chair, but had no room to work and no luck. So, I unscrewed the baseplate from the chair. I turned the base upside down in my workbench and proceeded to knock out the old cylinder with a hammer. I destroyed it, because I had to hit it so hard and directly in the center to dislodge it from the base. But that did the trick. I then used vice grips to grab hold of the old cylinder and turned & "unscrewed" it from the base. The new cylinder was simple to put on. After screwing the baseplate back onto the chair, I then replaced the old plastic cylinder protector onto the new cylinder, then slid the cylinder into the baseplate. I then replaced the old base with the casters. The new base is fantastic. I have no evidence of durability because it is brand new. But, it works great and goes "extremely" high if needed. It is a little higher than the old base at it's bottom position, but that is fine, as the old one was very short at it's bottom position. I am extremely happy with my purchase, that came within 6 hrs of ordering. It sure beats having to buy a new $400+ big and tall chair.

I was ready to haul my chair to the dump when I noticed that replacement cylinders were available. My chair was not high enough for my workbench so I ordered a cylinder that was a few inches longer. It fit perfectly and now my chair is the right height. Works great.

If you need extra height, this is the cylinder to buy. I purchased this office chair replacement cylinder because I needed one that's taller than average. Our original cylinder kept sinking, and since we're using the chair at an assembly workstation, the extra height was important. This heavy-duty Class 4 gas lift (12" to 18" adjustable with a 1,000 lb capacity) has been perfect for the job. It raises the chair higher than a standard cylinder and has no trouble supporting heavier loads. On a funny note, it has so much lifting force that my wife, who weighs under 120 pounds, can't get it to compress. It actually gives me a chuckle every time she tries. If you're looking for a heavy-duty, extra-tall replacement cylinder, this one has worked great for us.

This is actuall more for a stool style office chair. The lowest position is the tallest POS of a standard budget office chair. I'm 6'3" so I need the height so it's perfect for my use case. Getting the old failing cylinder was a challenge to get off because it's been on for 10+ years. However the install is simple. This is a Herman miller knock off but it's still really well built and comfortable. The new cylinder will hopefully give me another 10+ so far so good, but I'm not using it in a lifted position so I can't report on the strength of the lift. My old one would sink slowly over time and I'd have to keep adjusting it up, but this new one can't go any lower.

It fits. The pressure is holding and there is no bounce when I sit down.

Update 9/25/2025: I was contacted by the seller and offered a refund on the product, which I accepted, eliminating the need for me to return this failed unit when the replacement unit from another company arrives. Had there been a direct point of contact for the product on the website (perhaps there was but I was unable to find it), I would have accepted a replacement product and given this company a second try. ----- No instructions or tools needed were provided, so I had to search YouTube for help. The 4 instruction photos in the Amazon product webpage are useless and unhelpful. I needed a BIG pipe wrench to loosen the cylinder from the top of the chair! A mechanic friend had such a tool and with his help, we were therefore able to loosen the old cylinder. Installing the new one was easy. However, the extension pole did not pop-up before I installed the top of the chair on it. I thought that once connected, it would do so but it has not. Chair does go up or down, so I am assuming that the extension tube is jammed and was like this when I took it out of the box. Of course, there isn't any support point to ask for help. I should have realized that I was going to have issues when afterwards, I noticed that there are only TWO reviews from the USA. Don't buy this product!

Perfect fit, works well, I was surprised it came without basic instructions. It isnt hard to to but.... Thats what youtube is for, lol

The Huiguli Office Chair Cylinder is better than I expected. I had to replace my home office chair's pneumatic lift cylinder as it would not stay up. The Huiguli replacement I purchased fits perfectly and actually lifts the chair higher than the original cylinder. The Huiguli cylinder was simple to replace, with the hardest part being removing the original cylinder. I recommend the Huiguli replacement cylinder to anyone who needs to replace what they currently have.

Tough getting old cylinder out - saw a few videos; but in the end WD40 and a big mallet sorted it! This new cylinder is great - feels like a whole new chair (and saved me the cost of just that).

A high quality replacement gas lift cylinder for office and gaming chairs. This part allows one to extend the life of an adjustable office chair for years, rather than sending the chair to the landfill. A simple process to remove the failed cylinder from a chair and install the replacement within minutes. This particular part is heavy duty to support higher than standard weight and lifts taller than most standard cylinders and should last for years.

Length is not 17 inch, it is 15 inches

La qualità buona.

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