OK-320 Office Chair with “Comfort” Asynchronous Mechanism

Ergonomic Office Chair with Asynchronous Mechanism – Independent Seat & Backrest Adjustment

This ergonomic office chair is designed for intensive daily use, offering advanced posture control thanks to its asynchronous mechanism, which allows separate adjustment of seat and backrest tilt. Ideal for office desks, study areas and home working spaces.

Key Ergonomic Benefits

• Independent adjustment of backrest and seat inclination for personalized comfort.

• Automatic seat height adjustment via gas lift.

• Ideal for users seeking precise posture control and long working sessions.

Asynchronous Mechanism

The chair is equipped with an asynchronous system that allows:

• Independent tilt adjustment and locking of the seat and backrest.

• Independent backrest height adjustment.

• Independent seat height adjustment, improving overall adaptability.

Seat & Backrest Construction

• Seat base made from thermopressed bonded wood laminates.

• Backrest support in anatomically shaped injected plastic.

• Both seat and backrest include high-resistance foam padding.

• Finished with a protective and aesthetic injected-plastic outer shell.

Castors (50 mm)

• Twin castors, non-braking, suitable for delicate floors.

• Injected nylon with soft rolling surface.

• Certified “LGA Quali Test”.

5-Star Base

• Five-star base, 640 mm diameter.

• Injected nylon with 30% fibreglass reinforcement for strength and durability.

• Colour: Black.

Gas Lift Height Adjustment

• Gas lift compliant with DIN 4550 Class 4.

• Tested for users up to 150 kg.

Upholstery

• 100% polyester fabric.

• Over 80,000 abrasion cycles (EN 14465:2004 + A1:2007).

• Fire resistance compliant with EN 1021-1 and EN 1021-2.

• Colour: Black.

• No adhesives used for fabric fixation.

Do you need another type of armrest? Add them to your purchase. The office chair arms from our catalog can be attached to it.