Office Chair Bending

Office chair bending mainly involves two aspects: manufacturing processes and repairs.

Bending in Manufacturing Processes

In the production of office chairs, bending is a crucial step in constructing the chair's frame structure. Some office chair manufacturers use specialized automatic tube-bending equipment, such as the 38 double-head tube bender hydraulic tube bender. This equipment has a motor power of 15kw, with overall dimensions of 1600x1400x1700mm and a weight of 3 tons. It can achieve fully automatic bending of stainless steel tubes and is specifically designed for bending office chair tubing, enabling efficient and precise bending operations to meet the design requirements of different parts of office chairs.

In addition, the manufacturing of steel desks and chairs also involves bending processes. They use cold-rolled steel sheets that are bent to form the main frame. While maintaining a standard thickness of 1 - 1.2mm, the geometric shape is altered to enhance structural rigidity. This design not only ensures the durability of the desks and chairs but also reduces their weight to a certain extent, facilitating easy movement and use. Meanwhile, spot welding technology is employed for connecting key load-bearing nodes. Compared to bolt fixation, this reduces the risk of loosening during long-term use, improving the stability and service life of the desks and chairs.

Handling Bending Issues in Repairs

When an office chair tilts to one side, it is likely that one of the wheels at the bottom, which can rotate vertically and horizontally, has become bent or deformed, causing the chair to tilt in that direction. In this case, first place the chair upright and ensure that each wheel is in contact with the ground. Then, invert the chair to inspect each wheel for signs of damage. If a damaged wheel is found, it is recommended to purchase a new set of matching wheels and replace all of them to ensure the chair's balance and stability.

When removing the casters, first try to pull them out by hand. If they cannot be removed, use a flat-head screwdriver for assistance. For a very small number of casters fixed with screws, use a screwdriver to loosen the screws and remove them. When installing new wheels, apply a small amount of spray lubricant, such as WD-40, or a pea-sized amount of petroleum jelly to each chair base socket. Then, use a rubber mallet to tap each caster into its chair socket. Finally, invert the chair to test whether the new wheels function properly.