| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 640 x 620 x 1110 mm | |
|---|---|---|
| Finished Seat Cushion Thickness | 90 mm | |
| Backrest Padding Thickness | 70 mm | |
| Lumbar Support Zone Height | 240 mm | |
| Clear Width Between Armrests | 540 mm |
Net weight / load capacity / users / durability
| Net chair weight | 14 kg | |
|---|---|---|
| Maximum static user weight capacity | 120 kg | |
| Seat foam density | 45 kg/m³ | |
| Back foam density | 38 kg/m³ | |
| Foam rebound rate | 55% | |
| Caster rolling durability cycles | 40000 | |
| Seat surface static load rating | 136 kg | |
| Maximum recommended static user weight capacity | 120 kg | |
| Seat high-resilience foam density | 45 kg/m³ | |
| Back and lumbar foam density | 38 kg/m³ |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat cushion core | High-resilience molded polyurethane foam | |
|---|---|---|
| Back cushion core | Medium-density molded polyurethane foam | |
| Upholstery fabric | 100% polyester woven mesh fabric, 0.8mm thick | |
| Structural back frame | Glass-fiber reinforced white polypropylene, 5mm wall thickness | |
| Armrest structure | Injection-molded white polypropylene with padded TPU top surface | |
| Height adjustment gas lift | Chrome-plated steel Class 3 gas cylinder, 50mm diameter | |
| Tilt mechanism chassis | 2.5mm thick stamped steel with black powder coat finish | |
| Five-star base | Glass-fiber reinforced white nylon, 4mm wall thickness | |
| Casters | Dual-wheel polyurethane casters with black nylon bracket | |
| Seat support pan | 1.2mm thick molded plywood under seat cushion | |
| Dual upper back cushion cores | Molded medium-density polyurethane foam, 40mm thick | |
| Lumbar support cushion core | Molded medium-density polyurethane foam, 35mm thick |
Adjustment / rotation / tilt / mobility / storage features
| Seat height adjustment | 100mm vertical travel via Class 3 gas lift, operated by right-side lever | |
|---|---|---|
| 360-degree swivel | Full rotation around central gas lift axis for flexible workspace access | |
| Back tilt function | 12-degree backward tilt with tension adjustment, lockable in upright position | |
| Dual-panel back support | Two independent upper back panels flex to conform to spinal curvature | |
| Fixed armrest support | Non-adjustable padded armrests positioned to support forearm at typing height | |
| Smooth mobility | Five dual-wheel casters enable low-effort movement across hard floor surfaces | |
| Dual-panel back flex | Two independent upper back panels flex 5 degrees outward to conform to spinal curvature | |
| Lumbar support | Fixed contoured lumbar cushion applies even pressure to the 3rd-5th lumbar vertebrae | |
| Recline Angle / Lock Reference | 125° with 3suggested lock positions | |
| Tilt Tension User-weight Range | Reference adjustment coverage 120 kg | |
| Rotation / Mobility Configuration | 360° swivel with 5-caster multidirectional movement |
Verified carton / gross weight / assembly / loading data
| Reference Package Count | 1 set / 2 cartons | |
|---|---|---|
| Reference Assembly Time | 40 minutes per set | |
| Reference Carton Dimensions | 850× 420× 720 mm | |
| Reference Packaged Gross Weight | 23 kg/set | |
| Reference Carton Volume | 0.26 m³/set | |
| Indicative 20GP Loading | 135 sets at 85% space utilization | |
| Indicative 40HQ Loading | 320 sets at 85% space utilization |
Recommended spaces / users / usage modes
| Open-plan office workstations | Suitable for 8-hour daily desk work for general office staff | |
|---|---|---|
| Home office study spaces | Compact 640mm footprint fits small home desks without excessive space use | |
| Meeting and conference rooms | Unobtrusive design works for short to medium duration meeting seating | |
| Start-up co-working spaces | Durable construction withstands frequent use by rotating members | |
| Training room seating | Lightweight frame and smooth mobility support quick room reconfiguration for training sessions | |
| Recommended Matching Desk Size | 2.4 m executive desk | |
| Reference Daily Use Duration | 8 hours/day; confirm by ergonomic testing |
EU Market Access Requirements* EN Standards
| Office furniture safety strength | EN 1335:2018 | |
|---|---|---|
| Office furniture dimensional stability | EN 1335:2020 | |
| Office chair caster performance | EN 12529:1998 | |
| Office furniture safety, strength and durability | EN 1335:2018 | |
| Office chair ergonomic dimensional requirements | EN 1335:2018 | |
| Office furniture VOC emission limits | EN 16516 |
US and Canada office-furniture standards
| General purpose office chair standard | ANSI/BIFMA X2017 | |
|---|---|---|
| General purpose office chair performance standard | ANSI/BIFMA X2017 |
Standards applicable to China-market projects
| Office chair structural strength | GB/T 10357.3 | |
|---|---|---|
| Office chair safety requirement | GB 28007 | |
| Upholstered furniture formaldehyde limit | GB 18584 | |
| Office chair structural strength testing | GB/T 10357.3 | |
| General office chair safety requirements | GB 28007 | |
| Upholstered furniture formaldehyde emission limit | GB 18584 |
This product must meet the following technical requirements: 1. Office chair structural strength: GB/T 10357.3; 2. Office chair safety requirement: GB 28007; 3. Upholstered furniture formaldehyde limit: GB 18584; 4. Office chair structural strength testing: GB/T 10357.3; 5. General office chair safety requirements: GB 28007; 6. Upholstered furniture formaldehyde emission limit: GB 18584; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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