![]() It's a win-win for the customer and strap doors are leading the market in the door world. Not only are they safer, but they're also easy to install and much longer lasting. Schweiss Lift Straps have revolutionized the door world by opening and closing much more quickly, quietly and effortlessly. The most obvious "market shaking" improvements for the Bifold Door is the addition of the patented lift-straps along with the new strap autolatch systems, two features not offered by any other door manufacturer. only manufacturer to offer greasable hinges Almost impossible to replace the bushings when the hinges pins are welded in solid. No way to inspect the bushings when the hinge pins are welded in - not removeable for inspection. ![]() Less hinge surface area to distribute the door loads across the door header tube. The forces on each hinge vary during operation. Look at the Schweiss hinge, it has more lubricated surface area to give you longer life Others rely on bushing FOR LUBRICATIONÄoors move and flex as they open and close. Using grease on the hinges extends hinge life Greasable hinges last forever. Using grease on the hinges makes for a smoother operating door. Using grease on the hinges makes for a quiet door. Using grease on the hinges is the industry standard. Advantages of Grease Using grease on the hinges is a better method of lubrication. The new hinge design with grease points on every hinge segment enables owners - whether they be private individuals or commercial customers - to periodically grease their hinges from inside the doorframe without having to go through the cumbersome process of first removing the top rubber weather seal. It's a common manufacturing practice to use grease on the critical wear points and load points to avoid unnecessary wear just like in the industrial equipment world with implements such as payloaders, skidloaders and other industrial equipment that are being operated around the clock. When grease is used on the hinges of a large moving door it avoids unnecessary wear and adds longer life to the hinge and the doors operation. It's very important to be able to grease the door hinges with a heavy viscosity grease. With that being said, take one look at the patented Schweiss hinges and you'll clearly see the workmanship, strength and functionality of each hinge. The stresses on the very outer hinges are immense. Schweiss has designed and patented a robust hinge with more surface area to evenly distribute the loads of a moving one-piece doorframe. Large hydraulic cylinders are putting extreme forces on each of the outer hinges of the doorframe. Over the years, we all have heard of hinge failures on others doors. Hinge surface area is critical on large moving doors.
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