Deli 9371 Office Chair
The Deli 9371 office chair actually includes two different models: the Surfer series ergonomic computer chair and the KF228 ergonomic chair, which have significant differences in functional design. The following analysis is conducted from three aspects: core functions, structural features, and applicable scenarios.

Significant differences in core functions
The Surfer series focuses on dynamic support and is equipped with a 6D mechanical armrest (adjustable up and down, forward and backward, left and right, rotation, translation, and folding) to meet the needs of multiple scenarios. Its 3D lumbar support allows for three-way adjustment (up and down, forward and backward, rotation) and is paired with a three-zone lumbar protection function (targeted support for the lumbar spine, iliopsoas, and transverse abdominis) to effectively disperse the pressure from prolonged sitting. The recline angle reaches 130 degrees, close to a lying position, suitable for short breaks. The KF228, on the other hand, emphasizes static comfort. It adopts a dual-backrest structure (independent lumbar and backrest separation design) and achieves four-way adjustment (up and down, forward and backward) through a soft-padded lumbar support that fits the curve of the waist. A large headrest provides neck support, reducing cervical fatigue. Its armrests feature a soft-padded linked design that adjusts synchronously with the backrest recline, ensuring that the arms are always in a comfortable supported position.
Different focuses in structural materials
The Surfer series uses an alloy frame with a load-bearing capacity of up to 300 catties, providing stronger structural stability and is suitable for users with larger body sizes or those requiring high-intensity use. The frame material of the KF228 is not explicitly mentioned, but it emphasizes comfortable skin contact, suggesting optimizations in surface materials (such as mesh fabric and sponge), making it more suitable for users sensitive to touch or those seeking soft support. Additionally, the fixed armrest design of the Surfer series is simpler, while the soft-padded armrests of the KF228 offer superior comfort.
Complementary applicable scenarios
The multi-functional adjustability of the Surfer series makes it suitable for multi-task office scenarios, such as users who need to frequently switch sitting positions, recline for breaks, or perform keyboard operations. The dual-backrest structure and soft-padded design of the KF228 are more in line with the needs of prolonged focused office work, such as writing or programming, which require maintaining a fixed sitting position. Its linked armrests prevent the arms from hanging in the air, reducing shoulder and neck pressure. If users need to incorporate aๅไผ (noon break) function, the 130-degree recline angle of the Surfer series is more advantageous; if greater emphasis is placed on daily office comfort, the soft-padded support and tactile experience of the KF228 are superior.




