Office Chair Injection Molding Parts
Office chair injection molding parts are plastic molded components used in the manufacturing of office chairs, covering a variety of types, with their mold design and production demonstrating significant professionalism and diversity.

Part Types and Material Characteristics
The core types of office chair injection molding parts include nylon five-star bases, nylon feet, PA plastic chair foot bases, etc. These parts are typically injection molded from engineering plastics (such as nylon PA and polypropylene PP), possessing high strength, wear resistance, and impact resistance, enabling them to withstand the pressure and friction encountered during long-term use of office chairs. For example, nylon five-star bases disperse pressure through a five-claw design, enhancing stability; PA plastic chair foot bases reduce weight through structural optimization while maintaining load-bearing capacity. Some high-end parts also incorporate glass fiber reinforcement materials to further enhance mechanical properties.
Mold Types and Price Ranges
The production of these parts relies on professional molds, with common types including office chair component molds and office chair backrest molds. Mold prices are significantly influenced by complexity, size, and material:
- Simple molds (such as single-cavity chair foot molds) may cost as low as several hundred yuan, suitable for small-batch production or sample prototyping;
- Complex molds (such as multi-cavity five-star base molds or backrest molds with slider structures) can cost up to hundreds of thousands of yuan, meeting the demands for high precision and efficiency in production. The minimum order quantity for molds varies by manufacturer: some accept 1 set of custom orders, suitable for the R&D phase or small-scale production; while molds for large-scale production may require a minimum order of 1000 pieces to amortize mold costs.
Modular Design and Production Advantages
Taking Anji Kaixin Furniture Co., Ltd. as an example, its introduced KX-300-002 bread feet and KX-320-003 detachable feet adopt a modular design for easy assembly and disassembly. This design enables rapid assembly of components through standardized interfaces, simplifying the production process (reducing assembly steps) and lowering transportation costs (packaging can be disassembled to save space). The modular structure also facilitates later maintenance, allowing users to replace damaged parts individually and extend the product's service life.
Application Scenarios and Selection Recommendations
Office chair injection molding parts are widely used in various office settings. When selecting, it is essential to consider load-bearing requirements, usage frequency, and budget:
- For ordinary office environments, PA plastic chair foot bases can balance cost and performance;
- For high-frequency use or heavy-duty office chairs, nylon five-star bases are recommended to ensure long-term stability;
- Modular parts are suitable for scenarios requiring flexible transportation or rapid deployment (such as shared office spaces). Additionally, mold selection should align with production scale to avoid inventory buildup due to excessively high minimum order quantities.




