TWENTYFOURis5 Heavy-Duty 24-Hour Chair

The TWENTYFOURis5 heavy-duty (24-hour) chair is extremely durable and built for people who spend most of the day sitting. It is ergonomic, with adjustable lumbar support. The heavy-duty chair has hard-wearing upholstery in a choice of colors, for example 24/7+ by Camira (400,000 Martindale cycles) and Climatex Ultra. Interstuhl also uses premium natural cowhide, “Nappa leather” (at least 1.00 mm thick), and Valencia faux leather (manufacturer: Spradling).

Dimensions

Overall dimensions: W 710 mm, D 710 mm, H 1230 mm (H 1500 mm with headrest). Seat: W 500 mm, D 440 mm. Backrest: W 500 mm, H 720 mm (contoured ergonomic shape with height-adjustable lumbar support).

FEATURES

The chair has a synchronous mechanism with 5 locking tilt positions. Seat height is adjusted by a gas lift with a 140 mm range, and the seat absorbs shocks by 15 mm at 60 kg. The armrests have soft PU pads and adjust in 4 ways (metal base, armrest width 100 mm, 80 mm height adjustment range, and a pivot angle of up to 90 degrees around the vertical axis). They move forward and back (relative to the backrest) and up and down. Polyamide armrests are also available, with a width of 100 mm and 500 mm between the armrests. The height-adjustable headrest is upholstered and can be set to the desired vertical position and tilt angle. Backrest tension is adjustable from 45 kg to 120 kg, with a locking option. Lumbar support adjusts over a 100 mm range with 5 locking positions. The base is a black metal five-star base on casters, 710 mm in diameter.

Load capacity: 145 kg

Standards compliance: EN 1335-1, EN 1335-2

Additional information: The seat and backrest are connected by a 180×80 mm metal plate, and the seat and backrest shells are made of polyamide (nylon). The seat has 70 mm padding with a density of 75 kg/m3 and a 10 mm deep ergonomic contour in the center, while the backrest has 55 mm padding with a density of 45 kg/m3.