Douper 200N Gas Struts Heavy Duty Soft Close Lid Support Hinges Automatic Slow Lowering Safety Pneumatic Lid Lifters Gas Springs Pack of 2

I fabricate hardwood equestrian tack trunks for use in stables - see photos. Each box weighs approx. 75 lb and the lids alone are 40 lb. I tried a different closure but it was not sufficiently sturdy. These are the 200nt closures and would certainly be sufficient for any lid of this weight or lighter. While some reviews have stated that the instructions are not clear, I found them to be fine - the measurements stated are good starting points, but some adjustments will likely be needed. I’ve now completed 16 of these trunks over the past three years and have had no issues at all with them.

I have been thoroughly impressed with the performance. These automatic slow lowering safety pneumatic lid lifters have completely transformed the functionality of my lids. They have a heavy-duty construction. They feel solid and sturdy, giving me confidence in their durability and ability to handle heavy loads. Installation was a breeze, thanks to the clear instructions provided.

I installed this on a large chest for my son to prevent slamming the lid on his fingers. Instructions and installation dimensions weren’t the easiest to follow but the hinges are sturdy and operate great. The dimensions are given in tenths of an inch instead of fractions so, unless you have a scale, you are forced to approximate the dimensions on your measuring tape. After figuring out the correct positioning, the installation is pretty simple. There is now zero chance that the lid can slam shut. These hinges took my hope chest refinish/upholstery project to the next level as well as made it safe for my son to use. Would have been five stars if the installation instructions were simpler and clearer. Tips for quicker installation: First, install the lower bracket using the two given dimensions between the bracket center point as measured from the back and top of the box. Then, install the fully extended hinge onto the lower bracket with the single screw provided. Then, hold the lid open at an angle of 75 degrees while marking the top hole location of the upper bracket on the inside of the lid. I used a digital protractor to ensure proper angle. You will need to uninstall the hinge from the lower bracket to mark the lower hole location of the upper bracket. Drill marked holes and install hinge at all locations. Done! Drilling tip: Wrap a piece of tape on your drill bit at 1/2” from tip. This will give you a depth mark to prevent drilling through the sides/lid of your box.

I was able to make an exceptional change by using this device to convert a storage bench that had a hinged lid. It is possible to avoid the possibility of accidentally crashing into anything thanks to the automated slow-lowering mechanism, which guarantees a regulated and smooth drop. A feeling of sophistication is added to the entire design as a result of this, in addition to the fact that the storage solution is made more secure. They are suited for a variety of applications that need a support system that is both dependable and long-lasting since their 200N rating generates a strong lifting force. Whether the lid is in the completely open position or in the phase when it is gradually closing, the sturdy construction instills confidence that it will stay firmly in place. A touch of luxury is added to the experience by the gas struts, which make it easy to retrieve the objects that are kept within, and the soft closing function. The storage solution is transformed into a sophisticated piece of furniture as a result of this update, which is not the most obvious but has a significant influence.

Hinge is great quality and works really well for our cedar chest. Installation would have been easier if the measurements on the instructions/video were right. As others have mentioned, measurements for placement are not correct. I promise you, stranger on the internet, I am a champ with instructions. I actually fully understood the task and steps, but the measurements were just flat wrong. I even got second opinions. If you want precision placement, you will not get it without some trial and error to accommodate the oddness of the measurements. So if your chest is precious and you can’t imagine putting multiple holes in it, look elsewhere. If you are willing tok around and figure out a placement that works, you’ll be okay. That’s what I did and I do love the hinge, it was just a shot in the dark for install. Good luck to you all. May you have success.

Bought two but I only needed one of these struts to modify a hope chest to make it safe as a toy chest. The instructions with the struts are tricky to understand, but once you puzzle through them the measurements are fine. The mechanism is not meant to close the lid like a self closing kitchen drawer. Instead they provide resistance as you close the lid so it eases shut instead of slamming. I was concerned that two struts would make the lid too stiff for the kids to close, so I installed one and tried it out. It took 30 minutes to decipher the instructions and 10 minutes to install the first strut. Success. My 2 yr. old can close the lid just fine. Please note: the Lane hope chest I used originally had a lock that would be VERY dangerous for kids because it could lock a child inside the air tight box! Be sure to remove the lock.

Super smooth opening and closing. Held the heavy lid just like we were hoping.

Excellent product, exceeded expectations on heavy toy box lid. Only needed one to successfully soft close.

The product description on Amazon is confusing - it cannot open to 90 degrees by design. The enclosed instruction says 75 which is truth. The product is a good quality, but designed for heavier objects and may be too strong for a regular wooden door or boxtop. Slams to open, may be dangerous.

Très bonne penture pour un coffre de tout genre, à conseiller.

Installation was fairly simple. Holds enough weight to do what I need it to do. When I took inventory of what I received, the cap screw on one arm (fix it to the round connection) was missing but they gave me an extra screw instead, which doesn’t work. Luckily I had a spare in my junk drawer…