Kunyu Jewelry Production Documentary | Detailed Explanation of Manual Classification and Assembly Process

High-quality gold-plated hip-hop chains require refined pre-production processes. At Kunyu Jewelry’s Qingdao factory, chain links are mechanically die-cast and water-polished to remove burrs and clean surfaces for subsequent assembly and plating. Manual classification and assembly is the core process that determines chain shape, touch and durability, serving as our key quality control advantage over ordinary mass-produced products. Only finely assembled and inspected semi-finished products are transferred to the gold plating workshop.

All chain blanks are mass-produced by automatic die-casting equipment with high-precision molds, keeping dimensional errors within 0.1mm for uniform thickness and standard shapes. After casting, links are processed by assembly-line water polishing to remove oil, debris and burrs, smoothing edges and improving surface flatness and plating adhesion for manual assembly.

Qualified polished links are sent to senior artisans for full manual assembly. Different from rigid mechanical splicing, manual assembly focuses on precise classification, accurate matching and detailed calibration, ensuring superior texture and structural stability of finished chains.

During assembly, artisans engage and adjust each link manually to correct tiny mechanical errors, ensuring tight, smooth and jam-free joints. Key stress points are secondarily reinforced to improve tensile strength, effectively preventing loosening, decoupling and breakage during daily wear and enhancing overall durability.

Finally, artisans assemble processed links into standard hip-hop necklaces, bracelets and waist chains. With dual visual and hand-feel inspection, each chain is stretched and bent to test flexibility, eliminating asymmetry and uneven tightness. Only well-shaped, smooth and stable semi-finished products meet the pre-plating standard.

Machinery realizes efficient standardized mass production, while manual assembly upgrades product quality through refinement. Kunyu Jewelry adheres to core pre-plating manual procedures. With accurate classification, detail calibration and structural reinforcement, we make up for mechanical production deficiencies, delivering well-shaped, smooth and durable hip-hop chains and cost-effective trendy jewelry for global clients.