| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 625 x 680 x 1180 mm | |
|---|---|---|
| Five-star base overall diameter | 680 mm | |
| Seat width | 490 mm | |
| Seat depth | 445 mm | |
| Maximum seat height from floor | 505 mm | |
| Minimum seat height from floor | 405 mm | |
| Backrest height from seat surface | 560 mm | |
| Headrest height adjustment travel | 40 mm | |
| Armrest height above seat surface | 190 mm | |
| Headrest usable width | 340 mm | |
| Backrest upper section width | 475 mm | |
| Maximum outer width including armrests | 625 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 weight | 22.6 kg | |
|---|---|---|
| Recommended user weight capacity | 136 kg | |
| Five-star base static load rating | 1136 kg | |
| Gas lift cycle rating | 120000 lift/rotation cycles | |
| Tilt mechanism cycle rating | 300000 tilt cycles | |
| Caster rolling durability | 98000 smooth rolling cycles | |
| Backrest static load rating | 79 kg | |
| Seam stitch pitch | 8 mm | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest frame | PA+GF reinforced white nylon | |
|---|---|---|
| Backrest upholstery | 1.0mm breathable grey polyester mesh | |
| Seat cushion core | 50mm high-density molded cut foam | |
| Seat upholstery | 1.0mm wear-resistant grey woven fabric | |
| Armrest construction | White PA arm frame with soft TPE padded top | |
| Gas lift cylinder | 100mm stroke Class 3 black steel gas lift | |
| Tilt mechanism chassis | 2.5mm powder-coated A3 steel | |
| Five-star base | 340mm radius reinforced white nylon | |
| Casters | 60mm diameter dual-wheel silent PU casters | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board | |
| Backrest Internal Frame Thickness | 14 mm bent plywood/composite reinforced frame | |
| Five-star Base Material Thickness | Metal base wall 3.5 mm; diameter 700 mm |
Adjustment / rotation / tilt / mobility / storage features
| Seat height adjustment | 100mm vertical travel via gas lift lever | |
|---|---|---|
| Headrest adjustment | 40mm vertical height adjustment | |
| Swivel function | 360° full rotation around central gas lift column | |
| Recline function | 30° backward tilt with tension adjustment knob | |
| Mobility function | Dual-wheel casters for smooth rolling on hard floors | |
| Lumbar support | Contoured integrated static lumbar support | |
| Seat support structure | 15mm bent wood base under foam cushion | |
| 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 | Standard task chair for daily computer work, breathable back for long shifts | |
|---|---|---|
| Home office study spaces | Compact footprint fits residential desks, neutral grey/white aesthetic | |
| Conference meeting rooms | Swivel and mobility supports active discussion around meeting tables | |
| Staff administrative positions | Adjustable height fits 185 cm user height range | |
| Hard floor office environments | PU casters prevent scratching tile, wood or laminate flooring | |
| 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
| EN 1335-1:2020 | Applies to office chair dimensional safety and strength requirements | |
|---|---|---|
| EN 1335-2:2018 | Applies to office chair structural durability and stability testing | |
| EN 1022:2018 | Applies to seating furniture stability determination for office use |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applies to general-purpose office chair safety and durability testing | |
|---|---|---|
| ANSI/BIFMA X5.11-2015 | Applies to big and tall office chair load rating validation |
Standards applicable to China-market projects
| GB/T 3326-2016 | Applies to office chair dimensional stability and measurement tolerances | |
|---|---|---|
| GB 28007-2011 | Applies to office chair general safety requirements for structural strength | |
| GB/T 39602-2020 | Applies to ergonomic office chair performance evaluation for task use |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applies to office chair dimensional stability and measurement tolerances; 2. GB 28007-2011: Applies to office chair general safety requirements for structural strength; 3. GB/T 39602-2020: Applies to ergonomic office chair performance evaluation for task use; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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