When sitting on the SDC-01 chair, I feel a slight wobble; is this normal?
The user feels a fine wobbling play when sitting on the SDC-01 chair and is wondering whether the product is defective. They are asking to confirm whether this is a common occurrence in swivel and height-adjustable structures.
This is a natural play that occurs due to the characteristics of the hydraulic cylinder structure responsible for seat rotation and height adjustment, and it is not a product defect.
TXTR's SDC-01 is designed with a rotating seat, and its seating height can be adjusted[1]. These swivel and height adjustment functions are implemented through the hydraulic cylinder, which is the central column connecting the frame and the seat[2]. A hydraulic cylinder is a device that smoothly adjusts the height using internal fluid pressure and helps the seat rotate around the axis.
For parts to move, clearance is required. In order for the cylinder shaft to rotate smoothly and for the tube to move up and down, a fine gap—that is, mechanical play—between engaging parts is essential. This is because if there were no gap at all, friction would increase, preventing the seat from rotating or causing the height adjustment to catch and not move.
Therefore, the slight wobble that occurs when sitting down or moving your body is an inherent structural characteristic of hydraulic cylinders[3]. It is not a defect caused by faulty parts or improper assembly, so you can use it with peace of mind[4].
The maximum support load or recommended service life of the SDC-01 hydraulic cylinder has not yet been confirmed.