Low-Price Office Chair Base

Low-price office chair bases mainly include fixed bases, single-spring bases, single-torsion-spring bases, and mechanical bases. Here is a detailed introduction:

Fixed Base: Usually priced below 500 yuan, this type of base is mainly suitable for bar stools and lift chairs. Its functions are relatively simple, only allowing for height adjustment of the seat, without the ability to recline or adjust the seat depth. The adjustment method involves manually moving a control lever, which is relatively straightforward and easy to operate. In terms of comfort, it performs generally, but its biggest advantage lies in its low price. For users with a limited budget and low requirements for chair functions, who only need to meet basic height adjustment needs, it is a relatively suitable choice.

Single-Spring Base: The price range is between 500 and 1000 yuan, and it is commonly used in ordinary office chairs. It is an improved version of the fixed base, adding a recline function. However, the recline force and adjustment difficulty have increased. There are certain limitations in terms of seating comfort. For people with a lighter weight, it may feel difficult to 'press down' and achieve a recline easily. But for those with a moderate or heavier weight, it will be relatively smoother to use.

Single-Torsion-Spring Base: It is relatively common in ergonomic chairs priced below 500 yuan. It is equipped with two control levers, one in the front for adjusting the height of the seat cushion and one in the back for controlling the recline. It has a slender shape, no伸缩度 (this term might be better translated as '伸缩性' meaning '伸缩性' or '伸缩能力', but here it seems to imply no telescoping feature, so we can say 'no telescoping feature'), and no recline resistance. The backrest is inserted directly through holes, and its safety level is normal. However, the recline experience may vary among different products, and users need to actually try them out when making a selection.

Mechanical Base: It is more suitable for people who rarely use the recline function and mainly use the chair as an upright tool. This type of base focuses more on meeting basic sitting needs in its design. For users who do not need to recline frequently for relaxation, it can provide stable and reliable support, and its price is relatively affordable.