Adjustable Office Chair Specifications

The specifications of adjustable office chairs cover multiple aspects such as structural composition, common model sizes, general parameters, and specific product examples. Here is a detailed introduction:

Structural Composition and Core Parameters
An adjustable office chair consists of five parts: the base, gas lift, seat cushion, backrest, and armrests. The base is often made of cast iron and uses a five-claw or circular design to distribute pressure. Some products can bear loads up to 150 kilograms, ensuring stability. The gas lift is the core component for height adjustment, achieving this through internal air pressure regulation. It must comply with safety certification standards (such as BIFMA or SGS certification) to avoid the risk of gas lift explosions. The seat cushion is usually about 5 centimeters thick, filled with sponge or memory foam to provide comfortable support. The backrest design is divided into high backrests (supporting from the waist to the shoulders) and low backrests (supporting only the waist) to meet different usage needs. The armrests are mostly made of engineering plastics, and some products are equipped with adjustable armrests (such as up-down, front-back, or rotational adjustments) to adapt to different sitting postures.

Common Models and Sizes
The sizes of adjustable office chairs vary by model:

• Model a: 50 cm in length, 50 cm in width, with a height adjustable range of 50 - 70 cm, suitable for small spaces or users of shorter stature;
• Model b: 60 cm in length, 60 cm in width, with a height adjustable range of 60 - 80 cm, suitable for most office scenarios;
• Model c: 70 cm in length, 70 cm in width, with a height adjustable range of 70 - 90 cm, suitable for tall users or those requiring more space for movement.

General Parameters and Specifications
In terms of load-bearing capacity, most products can bear 120 kg, with some high-end models reaching up to 150 kg. Seat materials are mainly PU (artificial leather) or genuine leather. PU material is wear-resistant and easy to clean, while genuine leather appears more upscale but requires regular maintenance. The height adjustment methods are divided into manual and electric: manual usually uses a gas lift, adjusting height by pressing a lever; electric uses a motor drive, equipped with a remote control or buttons for more convenient operation. The seat angle adjustable range is generally 0 - 15 degrees, the backrest height adjustable range is 45 - 65 cm, and some products support segmented adjustments (such as independent adjustment of the lumbar support). The seat height adjustable range is usually 40 - 50 cm to fit different heights of office desks.

Specific Product Specification Example
Take the Deli 4905 office swivel chair as an example. Its seat height can be adjusted between 45 - 53 centimeters, with a seat width of 50 cm, a seat depth of 49.5 cm, and a maximum backrest angle of 120 - 155 degrees, supporting reclining for rest. The armrests are fixed, with a height of 16.5 cm. The overall appearance dimensions are approximately 6×49.5×91 cm (length×width×height), suitable for users of medium height.