Business Office Chair Production
The production of business office chairs involves complex processes such as raw material selection and inspection, metal frame fabrication, leather cutting and stitching, foam cutting and assembly, and functional component installation and final assembly.
Raw material selection and inspection is the foundation of production. Leather requires initial processing such as tanning and dyeing. Common types include full-grain leather, corrected-grain leather, and composite leather. Upon arrival at the factory, its color uniformity, thickness, softness, and physical properties such as tensile strength and abrasion resistance must be checked. High-density rebound foam affects the comfort and shape retention of the seat cushion and backrest. Metal components like five-star bases and gas lifts need sufficient strength and durability. Precision gas springs and chassis mechanisms must also undergo quality testing before being put into storage.
In the metal frame fabrication stage, steel tubes are first bent to form the bottom seat frame. Steel rods are welded to install the mechanical devices for adjusting the seat. Then, S-shaped steel springs are hung to create the seat suspension net, and horizontal rods are placed to increase stability and support. Next, the seat back frame is welded. The steel undergoes processes such as cutting, tube bending, welding, and grinding. The welding points must be ground smooth. After that, pre-treatment and electrostatic powder coating are carried out, and high-temperature curing forms a strong, wear-resistant, and aesthetically pleasing coating.
During leather cutting and stitching, the leather is laid flat on the cutting table, and the patterns required for the seat are cut along the template, avoiding natural flaws. Industrial sewing machines are used for stitching. Through processes such as plain stitching and double-needle stitching, the leather is sewn into three-dimensional seat covers, backrest covers, and armrest covers. The stitching is required to be neat and firm, and the patterns and textures at the joints should align naturally. After stitching, checks are made for no loose threads, no skipped stitches, and no stains.
In foam cutting and assembly, foam of different densities is selected according to the seat parts. Harder foam is used for the seat cushion, and softer foam for the backrest. After cutting the foam, it is assembled with the leather-stitched components. Hard cardboard is added to the backrest frame, the foam is placed over it, and the outermost layer is wrapped with leather.
During functional component installation and final assembly, sliding plate assemblies and hydraulic cylinders are installed. The hydraulic cylinder is connected to the aluminum base, and then casters are inserted. Finally, headrests and armrests are installed on the backrest to complete the final assembly. Some business office chairs also incorporate historical design elements, such as swivel mechanisms and small wheels.
