damping hinge

- **After-Sales Cost? Barely a Whisper**: Ditch the pricey pro repairs of traditional hinges. Our 6-inch F-type damping hinge lets you swap springs and dampers like a breeze—no tech squad needed. Save big on after-sales, ‘cause replacing the whole hinge? That’s so last season. - **Force Stages? Switch at Your Whim**: A simple twist on the pre-pressing screw, and you’re bouncing between two force modes. It’s tailor-made for any door, any vibe—total control, no sweat. - **4-in-1 Marvel: Hinge, Closer, Stopper, Positioner**: Why clutter with multiple hardware? This hinge is a one-stop shop—buffers, positions, closes doors flawlessly. It’s the Swiss Army knife of door hardware, minus the knife. - **175° Wide Open & Smart Motion Mastery**: Your door swings open to a jaw-dropping 175° and locks into place. Hover freely from 85°-130°, auto-close below 85°, and dampen tight below 20°—it’s like your door has a mind of its own, and it’s brilliant. - **Long-Life Loop: Refresh, Don’t Replace**: When damping gets lazy, swap the damper and boom—good as new. This hinge isn’t just a buy; it’s a long-term, low-fuss investment.

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.

1. Pioneering Pull-nail Non-adjustment Architecture The SQM Series damping hinge pioneers the integration of a pull-nail non-adjustment architectural framework, a paradigm-shifting design that redefines the installation logic of hinge systems. Unlike conventional hinges that necessitate tedious post-installation calibration to rectify misalignments or functional discrepancies, this pull-nail configuration inherently eliminates the need for any adjustment procedures.This not only slashes on-site installation time by over 60% compared to adjustable counterparts but also mitigates the risk of human error-induced performance degradation, ensuring consistent functional efficacy across all installed units. 2. Industry-transcending 18.5mm Ultra-miniature Shaft Diameter The SQM Series shatters industrial conventions with its 18.5mm ultra-miniature shaft diameter, a technical milestone that transcends the established performance boundaries of hinge systems. In the field of mechanical engineering for hardware components, the reduction of a core load-bearing component's dimensions—such as a hinge shaft—directly correlates with an exponential increase in technical density, as it demands the resolution of multiple conflicting engineering constraints: maintaining structural integrity under static and dynamic loads, ensuring wear resistance during prolonged cyclic motion, and preserving dimensional stability across fluctuating environmental conditions. 3. Flag-type Segmented Structural Kinematics The SQM Series incorporates an avant-garde flag-type segmented structural kinematics design, a revolutionary approach to hinge motion control that redefines the fluidity and dependability of door operation. Unlike traditional integral hinge structures, which rely on a single pivot point to govern the entire range of door motion—often leading to non-uniform angular velocity, excessive stress concentration at the pivot. Each segment of the hinge's flag-type assembly is equipped with an independent kinematic control module, which adjusts the rotational resistance and angular acceleration in real time based on the door's current position and motion state. 4. Innovative Bead-mediated Transmission Regime The SQM Series leverages an innovative bead-mediated transmission regime, a cutting-edge technology that redefines the stability and congruence of hinge performance metrics. Traditional hinge transmission systems typically rely on gear meshing or friction-based contact to transfer motion and torque, which are prone to issues such as backlash (gear meshing), uneven wear (friction contact), and performance degradation due to dust or debris accumulation. In contrast, the bead-mediated transmission regime employs a matrix of high-precision, spherical beads (manufactured from zirconia ceramics with a diameter tolerance of ±0.002mm) as the core transmission medium, which are housed within a specially designed raceway that features a variable cross-sectional profile. 5. Modularly Replaceable Dampers The SQM Series features modularly replaceable dampers, a design innovation that enhances the hinge's durability, maintainability. The damper module is engineered as a fully integrated, self-contained component that is mechanically coupled to the hinge's core assembly via a quick-disconnect interface. This interface employs a bayonet-style locking mechanism with a tactile feedback feature, enabling on-site replacement by maintenance personnel without the need for specialized tools or extensive disassembly of the hinge or door. The damper module itself incorporates a dual-chamber hydraulic damping system with a precision-machined piston (tolerance of ±0.005mm) and a high-viscosity damping fluid (with a viscosity index of ≥400) that ensures consistent damping force across a wide temperature range. 6. Integrated Buffering Damper Assembly The SQM Series incorporates an integrated buffering damper assembly, a design refinement that ensures seamless damping and buffering during door operations—eliminating the "slamming" effect that is common in conventional hinge systems and enhancing user comfort and door longevity. Unlike external buffering devices that are mounted separately on the door or frame (and thus prone to misalignment, damage, or aesthetic incompatibility), the buffering damper assembly is fully integrated into the hinge's internal structure, occupying minimal additional space while maintaining the hinge's sleek, compact form factor. 7. Exceptional Cryogenic Performance Profile The SQM Series exhibits an exceptional cryogenic performance profile, a critical technical advantage for applications in cold-climate regions or low-temperature industrial environments where conventional hinges often experience performance degradation (e.g., increased closing speed, reduced damping force, or mechanical seizure). Through rigorous R&D and testing, the hinge is engineered to sustain a uniform closing velocity (with a variation of ≤5% from the nominal value) even in suboptimal low-temperature milieus, operating dependably within an ultra-wide thermal range of -30°C to 60°C. 8. Four Sophisticated Chromatic Variants The SQM Series is offered in four sophisticated chromatic variants—Golden, Silver, Black, and Grey—each engineered to meet the highest aesthetic and functional standards while effortlessly harmonizing with a plethora of interior and exterior design ontologies. The chromatic finish is applied via a multi-step surface treatment process that combines aesthetic appeal with enhanced durability, corrosion resistance, and scratch resistance. For the Golden variant, a physical vapor deposition (PVD) process is employed to deposit a thin film of titanium nitride (TiN) onto the hinge's surface, resulting in a rich, lustrous golden hue with a thickness of 0.5-1.0μm. Each chromatic variant is subjected to rigorous quality control testing to ensure color consistency (with a Delta E value of ≤1.0 between production batches) and long-term durability, ensuring that the hinge maintains its aesthetic appeal even after years of exposure to sunlight, humidity, and daily use. 9. High Load-bearing Capacity & Protracted Service Lifespan The SQM Series delivers exceptional high load-bearing capacity and a protracted service lifespan, making it suitable for high-throughput applications where hinges are subjected to frequent use and heavy loads—such as commercial buildings, public facilities, and industrial environments. Each hinge slice (the unit that mounts to the door) is engineered to support a static load of up to 25kg, which is verified through static load testing in accordance with EN 1935 (the European standard for door hinges) where the hinge is subjected to 1.5 times the nominal load for 24 hours with no measurable permanent deformation. 10. Extensive Applicability Spectrum The SQM Series exhibits an extensive applicability spectrum, with design features that enable compatibility with a wide range of door types—including fire doors, wooden doors, steel entrance doors, and aluminum alloy doors—thus catering to multifarious usage exigencies across residential, commercial, industrial, and institutional sectors. This broad compatibility is achieved through a combination of modular design, compliance with industry standards, and adaptive mounting solutions. This extensive applicability spectrum eliminates the need for end-users to source different hinge models for different door types, simplifying procurement, installation, and maintenance processes.

a.Innovative 3D Hidden Design**: Features a concealed structure that integrates seamlessly with doors, offering both functional excellence and aesthetic minimalism. b.Dual Power Spring System**: Utilizes high-load energy-storage springs to deliver stronger door-closing force, ensuring efficient and reliable opening and closing cycles. c.Dual Buffering System with Exclusive Technology**: Adopts revolutionary integrated European-standard dampers, providing superior shock absorption and smooth operation. d.Oil-free Power Chamber**: Eliminates the need for hydraulic oil injection, achieving a breakthrough in hydraulic hinges with **zero oil leakage**, ensuring long-term performance stability. e.Exceptional Low-temperature Resistance**: Engineered with advanced materials and unique processes, it operates smoothly even at -25°C, unfazed by frost, ice, and snow challenges. f.Adjustable Door-closing Force & Damper**: Door-closing force is customizable to suit different door types, from lightweight entrance doors to heavy fire-resistant doors. The damper offers two modes—silent closing and stable locking—switchable with one click for personalized use. g.Optimized Functional Angle Design**: Boasts a unique angle structure with a free door-holding zone (180°-110°), a soft-closing zone (110°-20°), and a damping locking zone (20°-0°), ensuring a smooth, comfortable, and controlled door operation experience.