The Rian HB chair combines a robust molded plywood frame with high‑density polyurethane foam for superior comfort. It offers height‑ and angle‑adjustable backrest, a 4‑directional armrest, and a synchronized tilt mechanism, all supported by a sturdy five‑leg aluminium base with twin‑wheel casters.
Features
- 18mm thick molded plywood back base with 60±5 kg/m3 PU foam
- Height and angle adjustable HAAM mechanism with headrest cushioned by the same PU foam
- Seat with 12mm molded plywood base, 57±5 kg/m3 PU foam and durable plastic cover
- Armrest provides 4‑directional adjustability (up/down, back/forth, in/out, tilt) in PP construction
- Synchronous tilt mechanism with multi‑position locking, self‑weight tension adjustment and seat sliding function
- Height adjustment via 90 mm stroke Class 3 gas spring lift
- Sturdy 5‑leg aluminium die‑cast mirror finish base, 660 mm diameter
- Equipped with 60 mm twin‑wheel casters for smooth movement
Specifications
- Overall Height: 123 cm
- Overall Depth: 67 cm
- Overall Width: 71.5 cm
- Seat Height (Min/Max): 43/52 cm
- Seat Depth: 47 cm
- Handle Height (Min/Max): 64/73 cm
- Net Weight: 21.2 kg
- Back Base Thickness: 18 mm (12 mm inner + 6 mm outer)
- Back Foam Density: 60 +/-5 kg/m3
- Headrest Foam Density: 60 +/-5 kg/m3
- Seat Base Thickness: 12 mm
- Seat Foam Density: 57 +/-5 kg/m3
- Seat Cover Material: Durable plastic
- Armrest Construction: PP (polypropylene)
- Armrest Adjustability: 4-directional (up/down, back/forth, in/out, tilt)
- Tilt Mechanism: Synchronous tilt with multi‑position locking and self‑weight tension adjustment, seat sliding function
- Height Adjustment Mechanism: 90 mm stroke Class 3 gas spring lift
- Base Material: Aluminium die‑cast, mirror finish
- Base Legs: 5
- Base Diameter: 660 mm
- Caster Size: 60 mm twin‑wheel casters
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