| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions (W x D x H) | 625 x 660 x 1240 mm | |
|---|---|---|
| Seat width | 490 mm | |
| Seat depth | 470 mm | |
| Seat height adjustment range (floor to seat top) | 515 mm | |
| Armrest height above seat surface | 190 mm | |
| Backrest total height (seat to headrest top) | 580 mm | |
| Headrest width | 390 mm | |
| Five-star caster base diameter | 700 mm | |
| Backrest lumbar support width | 400 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
| Maximum recommended user weight | 136 kg | |
|---|---|---|
| Net chair weight | 22 kg | |
| Seat cushion foam thickness | 70 mm | |
| Seat cushion foam density | 45 kg/m³ | |
| Foam rebound rate | 60% | |
| Upholstery mesh abrasion resistance | 50000 Martindale cycles | |
| Seam stitch pitch | 8 stitches per 30mm | |
| Gas lift height adjustment cycle rating | 100000 cycles | |
| Caster rolling durability rating | 100000 cycles | |
| Warranty period | 10 years |
Core acceptance fields · Panels / hardware / frame / upholstery
| Structural frame | Glass-fiber reinforced white polypropylene | |
|---|---|---|
| Backrest upholstery | Blue breathable polyester mesh | |
| Seat cushion core | High-density molded polyurethane foam | |
| Seat upholstery cover | Wear-resistant grey woven fabric | |
| Armrests | Fixed white polypropylene with smooth curved surface | |
| Lumbar support pad | Contoured dark mesh-covered PP insert | |
| Headrest | Padded blue fabric-covered curved PP insert | |
| Five-star base | White nylon composite with reinforced spokes | |
| Gas lift cylinder | Black powder-coated steel pneumatic cylinder | |
| Casters | Black nylon dual-wheel swivel casters | |
| Tilt mechanism | 2.5mm thick stamped steel chassis | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board |
Adjustment / rotation / tilt / mobility / storage features
| Seat height adjustment | Pneumatic gas lift with 100mm stroke | |
|---|---|---|
| Backrest tilt and lock | Butterfly mechanism with 25° recline range | |
| Fixed arm support | 190mm high curved armrests with non-slip surface | |
| Contoured lumbar support | Ergonomic butterfly pad aligned to natural lower back curve | |
| Integrated headrest support | Curved padded headrest positioned at neck height | |
| Dual-wheel caster mobility | 5 x 50mm nylon casters for smooth rolling | |
| Waterfall seat edge design | Rounded front seat edge reduces thigh pressure | |
| Breathable mesh ventilation | Tensioned mesh back allows air circulation | |
| 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 daily 8-hour desk work for administrative and staff roles | |
|---|---|---|
| Home office workspaces | Neutral white-blue colorway fits modern residential study environments | |
| Small business meeting rooms | Swivel function allows easy interaction across meeting tables | |
| Height range 150-190cm users | Adjustable seat height fits most adult user heights ergonomically | |
| Hot-desking flexible work areas | Lightweight maneuverable design supports frequent workstation changes | |
| Reception and consultation areas | Professional clean appearance suitable for client-facing spaces | |
| 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 seating safety recommendation | EN 1335:2020 | |
|---|---|---|
| Office chair strength and durability recommendation | EN 1335:2018 | |
| Upholstered furniture surface flammability recommendation | EN 1021:2014 |
US and Canada office-furniture standards
| General purpose office chair recommendation | ANSI/BIFMA X2017 | |
|---|---|---|
| Caster performance recommendation | ANSI/BIFMA X5.1 Clause 17 | |
| Gas lift safety recommendation | ANSI/BIFMA X5.1 Clause 8 |
Standards applicable to China-market projects
| Office chair structural safety recommendation | GB/T 3326 | |
|---|---|---|
| Upholstered furniture durability recommendation | GB/T 10357.3 | |
| Formaldehyde emission limit recommendation | GB 18584 |
This product must meet the following technical requirements: 1. Office chair structural safety recommendation: GB/T 3326; 2. Upholstered furniture durability recommendation: GB/T 10357.3; 3. Formaldehyde emission limit recommendation: GB 18584; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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