Oqonos Cherg 023 Ergonomic Office Chair with Self-Balancing Mechanism, 4D Armrests, Sliding Seat and Silicone Castors - Grey

The Cherg 023 is designed for those who want to sit down and forget about adjustments. Its self-balancing mechanism detects the user's weight and adjusts the recline tension automatically, with no need to turn any wheel or search for the right position. The seat uses honeycomb-structure foam that offers a highly elastic feel from the very first moment, maintaining firm support without losing comfort. The 4D armrests adjust in height, angle and depth, with an extra-wide 110 mm pad that neither moves nor works loose. The high backrest, with lumbar curvature built into its design, is especially designed for taller people. The seat slides (50 mm) to adapt the depth to each user. The 60 mm silicone wheels protect any type of floor. BIFMA and EN1335 certified, with REACH certification. Maximum capacity of 150 kg.

Backrest and seat:

• High breathable mesh backrest (polyester + nylon), formaldehyde-free, flame-retardant, REACH certified, resistant to over 100,000 cycles. Built-in lumbar curvature. Adjustable recline from 100° to 125° with 4-position lock.

• High-density eco-friendly foam (55 kg/m³, 80 mm thick), high-density with honeycomb structure. Solid (no internal voids), no plywood, no glues or formaldehyde.

• 100% polyester seat fabric, flame-retardant, REACH certified, resistant to 100,000 cycles.

Ergonomics and adjustments:

• Built-in lumbar support (foam + fibreglass-reinforced structure), with curvature adapted to the lumbar area.

• 4D armrests: adjustable in height (70 mm), angle (50°) and depth (45 mm). Extra-wide 110 mm padded pad.

• Sliding seat (50 mm) to adapt the depth to your height.

• Self-balancing synchronised aluminium mechanism. 4 locking positions.

• Class 4 gas piston with 99.7% nitrogen purity, 2.5 mm reinforced wall and nitrided inner core that doubles its hardness to prevent long-term wobble.

Structure and durability:

• 350 mm reinforced nylon base with certified static load of 1,136 kg (BIFMA standard).

• 60 mm double silicone wheels, silent and suitable for all types of floor.

• Maximum capacity: 150 kg.

Dimensions:

• Seat height: 460-560 mm

Width: 520 mm

Depth: 390-445 mm

• Backrest height: 620 mm

Total height: 1165-1355 mm

• Total width: 680 mm

Total depth: 640 mm

• Armrest height from floor: 595-695 mm