Heavy-Duty Office Chair Base

Currently, there are four main types of mid-to-high-end heavy-duty office chair bases: single-spring, dual-spring, adaptive, and fiberglass, each with distinct characteristics and significant price differences.

Single-Spring Base: It has a relatively simple structure, relying solely on one spring to achieve the recline function. Its advantage is its low cost, making it relatively affordable. However, its drawbacks are also quite apparent. It is easy to sit in the first half of the recline, but becomes strenuous in the latter half, with a short travel distance and uneven spring force. Prolonged use can easily lead to fatigue, making it suitable for users with a limited budget and low comfort requirements.

Dual-Spring Base: It adds an additional spring to the single-spring base to assist in controlling the force, effectively solving the problem of uneven resistance during recline. It offers better stability and a more comfortable sitting experience. Chairs from well-known brands such as Haworth Fern and Takada Butterfly use this type of base, making it suitable for users with high demands for comfort and stability, although its price is relatively higher than that of the single-spring base.

Adaptive Base: It can automatically adjust the recline force according to the user's weight, theoretically meeting the needs of people with different weights and providing a more personalized comfortable experience. However, if the weight exceeds the normal range, the adjustment may not be precise, and the comfort level may be compromised. Chairs from Yongyi often use this type of base, making it suitable for users with a normal weight range who seek convenient adjustment.

Fiberglass Base: Also known as a dual-fiberglass spring base, it has a small proportion of deformation during the entire recline travel of the chair back, with uniform recline resistance, providing a smoother and more comfortable recline experience. However, due to the lack of unified production standards among different manufacturers, the experience can vary greatly. Chairs such as the Herman Miller Aeron and Sihoo Doro S300 use this type of base, making it suitable for users with high demands for quality and comfort and sufficient budget.

In terms of price, there are significant differences among heavy-duty office chair bases of different types and specifications. For example, a thickened explosion-proof chair base (boss chair lift tray, ergonomic swivel chair bracket base accessory) costs 130 yuan; a base for a large executive chair tray, office computer chair, gaming chair accessory set, and lift swivel chair base costs 324.4 yuan. When choosing, users can consider their own needs and budget comprehensively.