IKEA Office Chair Base

Taking the IKEA LÅNGFJÄLL series as an example, its office chair base has typical design features, as detailed below:

1. Structural Type

The LÅNGFJÄLL office chair base adopts a star-shaped structure, consisting of five legs, each equipped with a caster at the end. This design enhances the chair's stability during movement or when stationary by distributing pressure, making it particularly suitable for office scenarios that require frequent adjustments in sitting posture. The star-shaped structure also reduces long-term pressure on a single point of the floor, minimizing the risk of floor wear.

2. Materials and Craftsmanship

• Base Frame: The star-shaped base frame is made of aluminum, known for its lightweight and corrosion-resistant properties. It is coated with an epoxy/polyester powder coating, applied through an electrostatic spraying process to form a uniform protective layer. This coating effectively resists daily scratches, humid environments, and mild chemical corrosion, extending the product's lifespan.
• Casters: The casters are made of a composite of polypropylene plastic (PP) and synthetic rubber. PP provides structural strength, while synthetic rubber enhances grip and noise reduction, adapting to various floor types such as wooden and tiled floors. Some models feature larger-diameter casters (e.g., 60mm), further reducing moving resistance.
• Locking Mechanism: The locking mechanism, used to secure the chair's position, is made of steel and also coated with an epoxy/polyester powder coating to ensure wear resistance and rust prevention during frequent operation.

3. Functional Features

• Mobility: The casters are designed to support 360-degree rotation, allowing the chair to turn or move smoothly in confined spaces with the support of the star-shaped structure's multiple points.
• Load-Bearing Capacity: The combination of an aluminum base frame and a steel locking mechanism enables the chair to bear a high load (typically exceeding 100kg), meeting the needs of users of different body types.
• Safety Design: The edges of the casters are usually rounded to prevent floor scratches; the locking mechanism is easy to operate, allowing the chair to be fixed in position with a single button press to prevent accidental sliding.

4. Suitable Scenarios

This base design balances office efficiency and ergonomic needs, making it suitable for home offices, corporate workstations, and other scenarios. Its lightweight material facilitates easy transportation, while the corrosion-resistant coating makes it suitable for humid environments (e.g., areas without underfloor heating).

Summary: The IKEA LÅNGFJÄLL office chair base achieves a balance of stability, durability, and mobility through its star-shaped structure, aluminum base frame, and composite-material casters, making it a practical choice for modern office scenarios.