Dual-Disc Office Chair

The FS-Line220/82 mid-back chair (Model A1110-1) is a high-end ergonomic office chair featuring dual-disc rotating casters. Its core design features and functions are as follows:

1. Construction and Advantages of Dual-Disc Rotating Casters
This model of office chair is equipped with Wickham brand dual-disc rotating casters, which feature a dual-disc structural design. These casters typically consist of two metal or high-strength plastic discs, with a bearing system embedded in between to form an independent rotating unit. Their advantages include:

• Steering Flexibility: The dual-disc structure allows for 360-degree rotation without dead zones, combined with an independent bearing design, enabling more precise steering when the chair is moved and reducing friction resistance with the ground, making it particularly suitable for office scenarios that require frequent adjustments in sitting posture or movement.
• Load-Bearing Stability: The dual-disc design disperses the pressure exerted by the chair on the ground, enabling better adaptation to different floor materials (such as carpets and tiles) compared to single-disc casters, avoiding stuttering or tilting caused by excessive local pressure and enhancing safety during use.
• Quiet and Wear-Resistant: Wickham brand casters typically use high-density polyurethane (PU) or nylon materials, which are smooth and wear-resistant on the surface, effectively reducing noise during movement while extending service life.

2. Synergistic Design of the Base and Casters
The chair features a die-cast aluminum star base, which has undergone bright chrome plating, polishing, or coating treatment, enhancing not only its aesthetic appeal but also its structural strength. The five-claw design of the star base (common in high-end office chairs), combined with the dual-disc casters, further optimizes load distribution:

• Die-cast aluminum material offers high strength and lightweight properties, capable of withstanding dynamic loads (such as frequent user standing up and moving) without deformation.
• Chrome plating or coating treatment enhances the base's corrosion resistance, making it suitable for long-term use.
• The connection points between the star structure and the dual-disc casters are precisely calibrated to ensure the chair remains stable during rotation or movement, avoiding the risk of tipping over due to center-of-gravity shifts.

3. Ergonomics and Size Adaptability
Positioned as a high-end ergonomic office chair, this product has dimensions of 670W (width) × 630D (depth) × 1000-1100H (height), accommodating users of different body types:

• The balanced design of the seat depth (630mm) and seat width (670mm) provides ample support for the user's buttocks and thighs, reducing fatigue from prolonged sitting.
• The height adjustment range (1000-1100mm) can match office desks of different heights, ensuring users maintain the correct sitting posture (elbows level with the desktop, eyes level with the screen).
• The flexibility of the dual-disc casters combined with the stability of the base allows users to adjust their sitting posture or communicate with colleagues without frequently standing up, enhancing office efficiency.

Summary: The FS-Line220/82 mid-back chair achieves a balance of mobility flexibility, load-bearing stability, and user comfort through its dual-disc rotating casters, die-cast aluminum star base, and ergonomic size design, making it suitable for high-end office scenarios or users with high demands for chair performance.