FRNIAMC Hydraulic Gas Lift Height Overal 18 Inch for Medium Height Stool Chair (Stroke 6.3 Inch)

No abuse has been done to them. The weight of my body is 164 pounds. The chair is not used by anyone else. My office chair was too short for my taller drafting table and I needed this to be adjustable. In the first one, you felt a slight jerk as you lifted the seat upward (not very smooth), but other than that, it was pretty reliable. Probably not as well as I'd like, but not worse than I would expect for a cheap 3rd party replacement part. A few weeks ago, I disassembled the chair for the purpose of swapping out the base for one with more The cylinder was removed by tapping it free with a dead ball with (i think) the standard method of removing it from a radial rolling base Height) with the There is no action taken, so this isn't at all unusual since all cylinders either fail as this or by blowing their seals and releasing the fluid, one of the two is going to happen eventually. As a result, I got to use it for a year and a month or so, which is much less time than the average lifespan of the cylinders The second one was still okay for me, because it was only 16 bucks, and I didn't expect it to be the last one I would have to buy at that price. I was happy with what I got out of it, if I had to. I swap them out and within 24 hours (technically the second day, but well within 24 hours of first use) the thing has to be pulled up manually, holding the base of the chair down with my foot, and has trouble lowering the seat and releasing the In this case you may have to lean the chair around until you find the position that aligns the metal tubes with the least amount of the slight bind caused by your weight. If the seals leak or are slightly undersized, this suggests to me that either the parts' tolerances might be out (kind of unlikely) or the seals themselves might be undersized or even leak. It seems that the tubes are slightly oily most of the time. In fact, it's quite a bit more than a motor with a good lift cylinder, but less than one with a failed seal in a region not localized to any single area of the seal. If you want it out of me I swear by God I'm not going to remove it This could be anything from road trips to anything else. Regardless, I would not want to waste these guys' or my own time asking for an exchange since I am completely certain every single unit they ship is a defective, inferior $16 is a good price. If we add in handling and tax for $45 USD, then multiply by 2 we could have spent roughly $8 more on a quality lift cylinder, and I will bet you that even if they did fail like these two cheap models, they would still be replacements. In those days, it was likely that the chair would belong to someone else. It is best to buy a cylinder of quality. Prior to these two, I had never had a new one fail. The only old ones that can hold up someone's fat butt for forty years are the ones anybody has a problem with. It is simply a discount that you might not be able to use due to an increased number of installations and that could be another way of saying your chair has been out of service The only problem I can recall is that I never really dealt with that problem before, so it seems like these just tricked me into wasting some of my time. Since I am not upset with the sellers for anything, I will try to be as constructive to them as possible. This implies that the standard length replacements that they offer will generally perform as well as the factory parts and these extended cylinders may be prone to weakness because they haven't been engineered to support the same weight as the end of the increased There should have been either a larger diameter for the cylinders to accommodate the additional flexibility of the longer sections of tubing or an increase in the wall thickness at the current diameter for the tubes. Additionally, I would recommend moving up to the next diameter of the rings or seals as well since the seals are also subject to increased pressure because the mass at the end of a cylinder is held all the way in there. The manufacturer will likely not revise the item though, so I would advise buyers to exercise caution at least when it comes to the extra tall chairs. In case you are not careful, you might get exactly what you paid for.

Jaxtyn Baxter

| Oct 06, 2020

I have found the perfect chair to replace my old In addition, they can easily be replaced.

Allyson Reilly

| Jun 30, 2021

I really liked the quality and price. I like it, absolutely perfect. The cylinders come in varying sizes so make sure to measure beforehand. The stock one was way too low, so that was a nice improvement.

Cal LAW

| May 24, 2021

However, recently it started leaking for no apparent After replacing my old one that sustained the same issue, I bought this one, but it lasted less than one fifth the time it did my old one. I'm going to weld it to its full height and then create a cap for it. I always have a hard time replacing these.

Blaze Archer

| Feb 08, 2021

Two months after it was supposed to start. This product may be a vintage item. Once a month, the chair was only used for three days. 30 seconds after seated on the chair, the blood starts to flow.

Remington Donahue

| Jan 06, 2021

My office chairs were too low, so I bought some new ones. The height of the chair has been improved because we now have hydraulics.

Emanuel Stephenson

| Dec 10, 2020

As a matter of principle it worked fine, but one day it stopped working.

Blake Zimmerman

| Jul 19, 2021

This is fantastic! I am very pleased with it.

Kalel Conley

| Oct 18, 2020