Hydraulic Door Hinge

The Pioneering 18.5mm Pull-out No-adjustment Split-type Damping Hinge
- **Innovative Pull-nail & No-adjustment Design**: Features a pull-nail type non-adjustable structure, making installation remarkably convenient and time-saving, eliminating the hassle of complex adjustments during setup.
- **Industry-leading 18.5mm Pipe Diameter**: Breaks through industry limits with a pioneering 18.5mm shaft diameter. The smaller the shaft diameter, the higher the technical content, showcasing superior engineering and manufacturing capabilities.
- **Adjustable Closing Force & Smart Door Control**: After the door is closed, the closing force is adjustable. It also has a functional angle design: the door automatically returns when opened to 160°, with a wind buffer zone from 80° to 20°, a silent locking zone from 20° to 0°, and an arbitrary door-holding zone from 160° to 80°, enabling precise and intelligent door movement control.
- **Enhanced Performance & Durability**: Boasts smooth damping, quiet operation, and precise positioning. Its sturdy build guarantees long-lasting reliability, ideal for diverse door types and application scenarios.

WEINI hidden damping hinge features oil-free power cavity, dual buffer/spring systems, adjustable force, low-temp resistance, and multi-finish design, delivering silent, durable door solutions for residential & commercial use.

WEINI 4"/5" flag-type split damping hinges feature no-groove installation, independent replaceable modules, solving oil leakage & buffer failure for durable, silent door operation.

WEINI MQ4 18.5mm split-type damping hinge solves oil leakage, buffer failure & high after-sales issues, with 4-in-1 function, no-groove installation, replaceable parts, for silent, durable door operation.

WEINI hidden damping hinge features dual buffer system, oil-free power cavity, adjustable closing force & damping, low-temperature resistance, and multiple finishes, delivering silent, durable, and aesthetic door solutions for residential & commercial projects.

1. **Exclusive Patent**: Owns exclusive patent technology, ensuring uniqueness and advanced performance.
2. **Durable Structure & Long Service Life**: Can withstand up to 300,000 open-close cycles, with a durable structure suitable for a temperature range of -30°C to 60°C.
3. **No Oil Leakage**: Features a design that ensures never oil leakage, maintaining a clean and reliable performance.
4. **Removable & Replaceable Components**: Springs and dampers are replaceable, offering convenient maintenance and long-term usability.
5. **Versatile Application**: Suitable for various door types including fire doors, wooden doors, steel entrance doors, aluminum alloy doors, etc., and applicable to scenarios like automatic door closing, damping and buffering, positioning, windproof, and silent locking.
6. **Four Color Options**: Available in Golden, Silver, Black, and Grey to meet different aesthetic needs.
7. **No Slotting Required & No Left-Right Distinction**: Easy to install without the need for slotting, and there is no distinction between left and right installation directions, enhancing installation convenience.
8. **Space Aluminum Material**: Made of space aluminum, it is lightweight (250g per slice) yet can bear up to 25kg per slice, combining strength and portability.
9. **Low After-sales Cost**: Due to its durable and replaceable components, the after-sales maintenance cost is low.