OK-90 office chair with synchronized mechanism and seat depth adjustment

Upholstered and assembled in Spain with most of the components manufactured in EEC.

General characteristics: Ergonomic chair suitable for office work and home offices. INCLUDES multiple regulations as standard:
- Automatic adjustment (gas cartridge) of seat height.
- Height adjustment of the lumbar support of the backrest.
- Seat and backrest inclination adjustment with a synchronized steel mechanism that avoids the adoption of non-ergonomic postures. It is equipped with an anti-return system for the backrest.
- Synchronization pressure regulation according to the user's weight to use the chair in free tilt mode.
- Regulation of the separation between seat and back (allows the chair to be used comfortably by different people).
Mechanism: Synchronized system that regulates seat and backrest inclinations in synchronized mode, with anti-return system and pressure regulation. Tested up to 120 Kg. It includes the longitudinal adjustment system of the seat that allows adjusting the separation between it and the backrest.
Backrest: In polyester net on black polyamide supports. With anatomical shapes and height-adjustable lumbar regulation. "8 mesh colors to choose from"
Seat: Injected plastic support with anatomical shapes and reinforcement of two crossed metal bars, covered with 40 KG / MC density sponge to provide the chair with unique comfort and long life.
Seat upholstery: 100% polyester with more than 80,000 cycles of resistance to abrasion according to European standard EN 14465: 2004 + a1: 2007. Complies with EN 1021 1 and 2 standards on flammability. 12 colors to choose from. No glues are used to fix it.
Wheels: Double 50mm diameter wheels. hard tread injected in nylon. They comply with standards X5.1-1993 / 18 and UNI 8588/84. Optionally soft wheels or fixed stops.
5-spoke base: 5-spoke base and diameter 640 mm. Injected in nylon with at least 30% fiberglass to guarantee its resistance. Black color. Optionally polished aluminum base with 660 mm diameter that includes chrome gas.
Automatic height adjustment: By means of a gas cartridge according to DIN 4550 class 3 (certified by TUV LGA) and BS5459 level “S”.


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