Product Overview

This series is part of BOTER’s comprehensive whole-home functional hardware system and comprises fixed hinges, including the FPT-SS stainless steel fixed low-angle damping hinge (with two-stage force for arbitrary stop), the FPT fixed low-angle damping hinge (with two-stage force for arbitrary stop), the FR-SS/FRT-SS stainless steel fixed damping hinges (with single-stage force or two-stage positioning force), the FR/FRT fixed damping hinges (with single-stage force or two-stage positioning force), and the FS/FST/FQ fixed damping hinges (with single-stage force, two-stage positioning force, or two-stage force with arbitrary stop). All five models feature a fixed design, with a standardized core hinge cup specification of 35 mm in diameter and 11.5 mm in depth. They are compatible with two door-thickness ranges: the FPT series for 14–23 mm, and the remaining series for 14–22 mm. The maximum opening angle is 103°/105°, and they support precise three-dimensional adjustment. Complete installation accessories and decorative covers are also provided. 
The core materials for each model are available in two types: cold-rolled steel with a nickel-plated surface, and 304/201 stainless steel with a polished stainless-steel finish. The opening-and-closing mechanisms include single-stage force control, two-stage positioning, and two-stage adjustable-stop functions. The FPT series uniquely features a low-angle cushioning function of less than 10 degrees, and the entire series is equipped with damping.

Key selling points

Application Scenarios

This series of fixed hinges is a core hardware component for custom-built cabinetry, primarily used to securely fasten and connect the doors of panel-style furniture cabinets. They are suitable for a wide range of cabinet applications that require stable, quiet opening and closing, specifically including:

Custom-made cabinetry for the entire home: Custom cabinetry for dry environments, including bedroom wardrobes, study bookcases, living room wine cabinets and TV cabinets, as well as entryway shoe cabinets, among others.

Cabinets for kitchens and bathrooms: Kitchen wall cabinets and base cabinets, bathroom vanities, balcony storage cabinets, and other cabinet bodies for damp, corrosion-prone environments (stainless steel models are preferred);

Finished furniture cabinet body: Commercial and residential finished furniture, including bedside tables, sideboards, display cabinets, and office filing cabinets;

Special-Needs Cabinet: Children’s room cabinet bodies (low-angle cushioned design to prevent pinching), light-luxury custom cabinet bodies (with adjustable-stop mechanism for enhanced user experience), and high-frequency opening/closing cabinet bodies (single-force design for exceptional durability).

Use value

Enhancing the cabinet opening and closing experience: Damping buffers ensure quiet, impact-free door closure; low-angle buffering further eliminates the risk of fingers getting pinched. Two-stage force control and position-locking allow precise control over the door’s opening and closing angles, while the free-stop feature makes it easy to access items stored deep inside the cabinet, significantly enhancing user comfort.

Reduce installation and after-sales costs: The fixed structure ensures stable connections, while the multi-dimensional adjustment feature allows for precise correction of dimensional deviations during installation—eliminating the need for re-drilling. In subsequent use, minor adjustments can be made to accommodate cabinet deformation and wear, thereby extending the service life of both the hinges and the cabinet itself.

Strong environmental adaptability and greater durability: The choice of dual materials allows for precise matching to the operating environment: the stainless steel version resists rust in humid and corrosive conditions, while the cold-rolled steel version offers excellent cost-effectiveness in dry environments, thereby preventing premature failure due to material mismatch.

Standardized design for easy selection and configuration: Standardized hinge cup specifications and unified adjustment parameters ensure high compatibility with mainstream panel furniture manufacturing processes, enabling standardized component selection for whole-house custom solutions. This reduces the variety of hardware inventory required and enhances the efficiency of component selection and installation.

Combines practicality with aesthetics: The complete set of installation accessories ensures a more secure and stable connection, while the decorative cover conceals the hinge mounting structure, resulting in a cleaner cabinet door surface. This design strikes a balance between the practicality of the hardware and the overall aesthetic appeal of the cabinet.

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Accessory Information

Adjustable range

Recommendation: The adjustment parameters are product design parameters; the actual cabinet dimensions, drilling locations, and installation method may influence these parameters.

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Frequently Asked Questions

Installation type

How are the distance from the door panel to the edge (K value) and the gap between the door panel and the cabinet side (A value) determined?

Answer: The K value (distance from the drill hole to the edge of the door panel) and the A value (gap between the door panel and the cabinet side panel) must be determined in accordance with the gap dimension calculation table provided with the product (Table A), selecting the appropriate values based on the door panel thickness (T value) and the cabinet type (full-overlay / half-overlay / internal-overlay). The key is to ensure that the hinge cup size specified in the product manual matches the minimum door-opening clearance requirements.

What is the minimum door opening clearance corresponding to different door panel thicknesses (T values)?

Answer: For door panels with a thickness of 14–23 mm, the corresponding minimum door-opening clearance ranges from 0.3 to 3.8 mm, with slight variations depending on the specific model. The key reference values are as follows: for a 14-mm-thick panel, 0.3–0.4 mm; for a 15-mm-thick panel, 0.5 mm; for a 16-mm-thick panel, 0.6–0.8 mm; for a 17-mm-thick panel, 0.8–1.0 mm; for a 18-mm-thick panel, 1.0–1.1 mm; for a 19-mm-thick panel, 1.2–1.3 mm; for a 20-mm-thick panel, 1.5–1.6 mm; for a 21-mm-thick panel, 1.8–1.9 mm; for a 22-mm-thick panel, 2.1–2.3 mm; and for a 23-mm-thick panel, 2.4–2.7 mm. Selection must be made precisely according to the specification sheet for the corresponding hinge model.

Adjustment type

How do you adjust the height, cover position, and door gap using the adjustment screws on the base?

Answer: ① Height adjustment: Fine-tuning is achieved via the dedicated base mounted on the cabinet side panel, allowing for an adjustment range of ±1.5 mm in the vertical direction; ② Lid position/door gap adjustment: By rotating the adjustment screw at the corresponding hinge location, the lid position can be adjusted by up to +5 mm, and the door gap by up to +2.5 mm; ③ Leveling/depth adjustment: Simply rotate the leveling/depth adjustment screw on the hinge to increase or decrease the setting as needed.

How can excessive adjustment during the adjustment process be avoided to prevent hinge loosening or door panel misalignment?

Answer: Adjustments shall follow the principles of small, incremental adjustments and real-time inspection. For every 1/4 turn of the adjustment screw, check the fit between the door panel and the cabinet body as well as the uniformity of the door gap; stop immediately once the target condition is achieved. Avoid unlimited rotation of the adjustment screw, which could strip the threads or loosen the base mounting. After completing the adjustment, gently push the door panel to test its opening and closing; only after confirming there is no misalignment should the adjustment screw and base be lightly secured.

Using classes

How should one troubleshoot when the low-angle buffering function (less than 10 degrees) fails?

Answer: Only the FPT series is equipped with a low-angle buffering function for angles less than 10 degrees. When this function fails, the following issues should be investigated first: ① Whether dust or foreign objects have entered the damping core, causing the damping components to seize; if so, remove the obstructions and retest. ② Whether the hinge installation is misaligned, resulting in the door panel pressing against the cabinet body and obstructing the damping mechanism; in this case, slightly adjust the hinge position to relieve the obstruction on the damping mechanism. ③ Whether the damping components have lost functionality due to wear or aging; if the failure is caused by component damage, the damping core or the entire hinge assembly must be replaced.

Second-stage force / Why can’t the second-stage-force positioning door panel be accurately positioned?

Answer: The main causes can be summarized as follows: ① Misalignment of the hinge installation—insufficient adjustment of horizontal and depth settings—results in uneven force distribution during door opening and closing; the hinge positioning must be finely readjusted. ② Sticking or jamming of the two-stage force/positioning components, caused by foreign matter ingress or inadequate lubrication; after removing any foreign matter, apply hardware-specific lubricant. ③ Loosening of the hinge mounting—failure to fully tighten the base or screws—leads to displacement during door operation; the fasteners must be re-tightened and the hinge position finely adjusted.

Why can’t the “arbitrary stop” function be achieved with a two-stage force-type door panel?

Answer: First, if the hinge installation angle is out of tolerance, the door panel will experience uneven force during opening and closing; in this case, the installation position should be adjusted by fine-tuning the horizontal and depth adjustment screws. Second, if the internal spring or damping mechanism of the stay-in-place component is damaged, it will no longer provide stable support, necessitating replacement of the affected part. Third, if the door panel is excessively heavy and exceeds the hinge’s load-bearing capacity, either a higher-capacity hinge should be installed or the number of hinges should be increased.

In modern furniture design, precision, durability, and user comfort are key. The Adjustable Low-Angle Damping Hinge Spot is engineered to deliver all three, transforming ordinary cabinets, doors, and panels into high-performance, user-friendly solutions. By integrating advanced damping technology, these hinges reduce abrupt movements, prevent slamming, and provide controlled motion, enhancing both safety and aesthetics.

Manufacturers face challenges such as inconsistent door movement, wear and tear, and customer dissatisfaction due to poor hinge performance. The Adjustable Low-Angle Damping Hinge addresses these issues with customizable tension settings, ensuring smooth operation across a variety of furniture types. Whether it’s a kitchen cabinet, a high-end wardrobe, or an office storage unit, these hinges adapt to the required load and motion, maintaining longevity even under frequent use.

Case studies show that incorporating these damping hinge spots significantly improves product quality perception. In a recent project for a premium office furniture line, the installation of adjustable low-angle damping hinges reduced door noise by over 90% and increased overall user satisfaction. Additionally, maintenance calls decreased, as the hinges retained precise motion without requiring frequent adjustments, demonstrating both cost-efficiency and reliability.

The advantages of these hinges are manifold. High-grade stainless steel construction ensures resistance to corrosion, while precision-machined pivot points allow for exact alignment. The damping mechanism is fully adjustable, giving designers and end-users control over the door’s opening and closing speed. By preventing slamming, the hinge protects furniture surfaces from damage, extending product lifespan and reducing replacement costs.

In practical applications, these hinges also enhance ergonomic safety. By slowing door motion at critical angles, they prevent finger pinching and other minor injuries common in high-traffic environments such as schools, hospitals, and commercial kitchens. This makes Adjustable Low-Angle Damping Hinge Spots not only a functional improvement but also a safety-critical component.

Customization options further increase their appeal. Clients can specify hinge size, damping force, and material finish, ensuring integration with a wide range of furniture aesthetics and functional requirements. For manufacturers, this flexibility supports diverse product lines without necessitating multiple hinge designs, streamlining production and inventory management.

In conclusion, the Adjustable Low-Angle Damping Hinge Spot represents a convergence of engineering precision, user comfort, and long-term durability. By resolving common issues like slamming, uneven motion, and wear, these hinges elevate both the functional and aesthetic quality of furniture. For manufacturers, designers, and end-users alike, investing in high-quality damping hinges is a step toward smarter, safer, and more satisfying furniture experiences.