Sun Chain provides a comprehensive range of furniture hardware solutions, including handles, knobs, hooks, drawer slides, storage systems, kitchen accessories, and functional hardware. By integrating multiple product categories, we help customers simplify sourcing and develop complete furniture hardware solutions.

Our handle collection includes a wide range of standard center-to-center dimensions commonly used in the furniture industry, making them suitable for cabinets, kitchens, wardrobes, bathrooms, and various furniture applications. Customized dimensions are also available upon request.

We work closely with our manufacturing partners through standardized production processes, approved reference samples, and quality inspections to help maintain consistency in appearance and product quality across production batches.

Quality is built into every stage of product development and manufacturing. Depending on product requirements, evaluations such as dimensional inspection, appearance inspection, durability testing, corrosion resistance testing, and packaging verification can be performed to help ensure consistent product quality.

We offer a wide range of surface finishes, including powder coating, electroplating, PVD coating, anodizing, brushed finishes, and specialty decorative finishes. Available options may vary depending on the material and product design.

Sun Chain offers handles in a variety of materials, including zinc alloy, aluminum, brass, stainless steel, steel, and wood. Material recommendations are based on product design, application, and target market to achieve the right balance between aesthetics, durability, and cost.

Sunchain's MES smart manufacturing system enables digital management and process traceability for the entire production workflow. Through the MES system, every batch of products logs production batches, process parameters, inspection records, and shipping information. Consequently, full process traceability is achieved. For specific collaborative projects, Sunchain can also provide remote quality acceptance or share process information upon request. Furthermore, the factory has introduced 3D AOI equipment to inspect the machining quality and dimensional consistency of critical parts, minimizing manual inspection errors.

For industrial and equipment manufacturing customers, long-term quality consistency is paramount. Sunchain mitigates quality risks through three layers: (1) MES Process Management: Real-time monitoring of the production process and retention of complete production records ensure that every batch meets the same standard. (2) 3D AOI Automated Inspection: Utilizing Automated Optical Inspection equipment to inspect critical components, reducing human error. (3) Pre-shipment Quality Inspection: All products undergo rigorous quality inspection and testing prior to shipment. Our Golden Sample + Routing Inspection mechanism further eliminates human error and guarantees consistent quality across batches.

Beyond smoothness, we offer comprehensive solutions for surface treatment and corrosion resistance: Zinc Plating (Standard rust prevention), Black Zinc (Balance of aesthetics and corrosion resistance), Yellow Zinc (Higher corrosion protection grade), and E-coating / Electrophoretic Deposition (High uniformity and premium aesthetic texture). All surface treatments pass at least a 48-hour salt spray test. For outdoor, high-humidity, or high-salinity environments, we can upgrade specifications or use stainless steel materials upon request.

Our slide testing is executed in accordance with ANSI/BIFMA standards and can be cross-referenced to DIN or other specifications based on customer requirements. Before shipment, the following tests are conducted to ensure high-load safety: Cycle Life Testing (typically 50,000+ cycles), Outstop Impact Testing (approx. 15,000 cycles), Side Load Testing (simulating off-center loads), and Anti-tipping/Structural Stability Testing. For heavy-duty applications (such as the 500kg class), we conduct additional safety factor verifications and structural evaluations to ensure stability and safety under long-term use and dynamic loads.