Office Chair, Lifting Chair, Accessories

Common accessories for office chairs and lifting chairs include gas springs, five-star bases, trays, chassis, four-star bases, casters, and backrests, among others. Prices vary depending on the material and functionality, and it is advisable to prioritize purchasing from reputable manufacturers to ensure safety.

Core Accessory Types and Functions

1. Gas Spring: As the core component for height adjustment, it regulates the seat height through high-pressure gas inside. Prices range from 14.6 yuan to 42 yuan. It is important to choose products that meet national safety standards (such as SGS certification) to avoid safety hazards caused by inferior gas springs exploding.
2. Five-Star Base/Four-Star Base: These are the foundational structures that support the weight of the chair, typically made of nylon or aluminum alloy. The aluminum alloy five-star base is known for its strong load-bearing capacity and high durability, priced at approximately 55 yuan. The four-star base design saves space and is suitable for small areas.
3. Tray and Chassis: The tray connects the backrest to the seat cushion, while the chassis controls functions such as height adjustment and tilting. The die-cast aluminum alloy tray is priced at around 38 yuan, and the multi-functional chassis (including tilt locking and height adjustment) costs about 92 yuan. Selection should be based on functional requirements.
4. Casters: These are key accessories for enabling flexible movement of the chair, with materials divided into hard nylon (suitable for carpets) and soft PU (suitable for hard floors). The price for a single caster typically ranges from 5 yuan to 15 yuan.
5. Backrest: Some detachable backrests support individual replacement, with materials including mesh, foam, and leather. Prices vary significantly based on material and design, and it is necessary to match the original chair model.

Purchase Considerations

• Safety First: Gas springs must pass explosion-proof tests, and the chassis should have overload protection to prevent structural damage from excessive weight or frequent adjustments.
• Material Matching: Aluminum alloy accessories are more durable than nylon but come at a higher cost. Casters should be selected based on floor type to avoid poor sliding or floor scratches.
• Compatibility Verification: Before replacing accessories, confirm the model (such as the diameter of the gas spring and the mounting hole distance of the tray) to avoid installation failures due to size mismatches.
• Purchase from Authorized Channels: Prioritize buying from brand official stores or authorized dealers to avoid counterfeit products and ensure after-sales support.

Maintenance Suggestions

Regularly check the sealing of the gas spring, the flexibility of the caster rotation, and the tightness of the five-star base connections to extend the lifespan of the accessories. If height adjustment becomes stuck, there are unusual noises, or structural looseness occurs, replace the corresponding accessories promptly to avoid safety hazards.