| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions (W x D x H) | 640 x 640 x 920 mm | |
|---|---|---|
| Seat width | 490 mm | |
| Seat depth | 460 mm | |
| Backrest height | 480 mm | |
| Seat height adjustment range (low to high) | 540 mm | |
| 4-star base footprint diameter | 730 mm | |
| Seat cushion thickness | 80 mm | |
| Backrest cushion thickness | 60 mm | |
| Gas lift cylinder exposed length at mid height | 180 mm | |
| Maximum seat height (floor to seat top) | 540 mm | |
| Minimum seat height (floor to seat top) | 440 mm | |
| Gas lift cylinder total stroke length | 100 mm | |
| Backrest width at widest point | 470 mm | |
| Floor glide length per prong end | 40 mm | |
| Finished Seat Cushion Thickness | 90 mm | |
| Backrest Padding Thickness | 70 mm |
Net weight / load capacity / users / durability
| Net weight range | 13 kg | |
|---|---|---|
| Recommended static load capacity | 150 kg | |
| Seat foam density | 45 kg/m³ | |
| Back foam density | 35 kg/m³ | |
| Foam rebound rate | 45% | |
| Seam stitch pitch | 8 mm | |
| Floor glide static load per foot | 40 kg | |
| Recommended daily usage duration | 8 hours | |
| Standard parts warranty period | 12 months | |
| Net product weight | 13 kg |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back upholstery | 1.0mm thick slate blue smooth PU/faux leather | |
|---|---|---|
| Seat cushion fill | High-density polyurethane foam with molded edge support | |
| Backrest fill | Medium-density polyurethane foam with rigid internal support board | |
| Internal seat frame | 1.5mm thick powder-coated steel frame | |
| 4-star swivel base | 2.0mm thick polished chrome-plated steel/aluminum alloy | |
| Floor contact glides | Injection-molded non-marking rubber end caps | |
| Height adjustment cylinder | Class 3 steel gas lift with black plastic adjustment lever cover | |
| Swivel bearing assembly | Steel ball-bearing swivel mechanism between seat plate and gas lift | |
| Under-seat mechanism plate | 2.5mm thick stamped steel tilt/height control plate | |
| Internal seat support frame | 1.5mm thick powder-coated steel tubular frame under seat cushion | |
| Under-seat control mechanism plate | 2.5mm thick stamped steel fixed-tilt/height control plate with black powder coat | |
| Height adjustment lever | 3mm thick black nylon paddle lever mounted under front seat edge |
Adjustment / rotation / tilt / mobility / storage features
| 360° swivel rotation | Full 360-degree horizontal rotation enabled by central ball-bearing swivel joint | |
|---|---|---|
| Pneumatic seat height adjustment | 100mm vertical height adjustment via under-seat lever, controlling Class 3 gas lift cylinder | |
| Stationary glide mobility | Fixed position on hard floors with rubber glides, no rolling casters, designed to prevent floor scratches | |
| Armless access design | No protruding armrests to allow tucking fully under desks and flexible cross-legged seating positions | |
| Back support geometry | 10° fixed rearward backrest angle for upright lumbar support during task work | |
| Upholstery maintenance | Smooth non-porous surface allows wipe-cleaning with mild detergent for regular office maintenance | |
| 360° horizontal swivel | Full unobstructed 360-degree rotation enabled by central steel ball-bearing swivel joint, no rotation lock | |
| Stationary glide positioning | Fixed non-rolling placement on hard floors via rubber glides, with 4 contact points to prevent unwanted movement and floor scratches | |
| Wipe-clean upholstery maintenance | Non-porous smooth PU surface allows spot cleaning with mild detergent and soft cloth, no water-based stain penetration | |
| Fixed tilt resistance | Integrated mechanism provides 3° of passive flex under 100kg occupant load without adjustable tilt tension | |
| Recline Angle / Lock Reference | 125° with 3suggested lock positions | |
| Tilt Tension User-weight Range | Reference adjustment coverage 120 kg |
Verified carton / gross weight / assembly / loading data
| Packaging carton count | 1 unit | |
|---|---|---|
| Packed carton dimensions (L x W x H) | 660 x 680 x 580 mm | |
| Packed gross weight | 18 kg | |
| Packed volume per unit | 0.26 CBM | |
| Assembly time | 20 minutes | |
| 20ft GP container loading quantity | 210 units | |
| 40ft HQ container loading quantity | 520 units | |
| Reference Package Count | 1 set / 2 cartons | |
| Reference Assembly Time | 40 minutes per set | |
| Reference Carton Dimensions | 850× 420× 720 mm |
Recommended spaces / users / usage modes
| Private home office workstations | Compact armless footprint fits small desk spaces and can tuck fully under standard 750mm high desks to save floor space | |
|---|---|---|
| Open-plan office task seating | Stationary glide base prevents unwanted rolling in high-traffic walkways, and neutral slate blue finish matches modern minimalist office interiors | |
| Conference and meeting rooms | 360° swivel allows easy conversation between meeting participants without armrest obstructions for guest seating | |
| Reception and waiting areas | Sleek polished metal base and tailored upholstery provide a professional appearance for visitor seating with easy wipe-clean maintenance | |
| Study and dormitory desk seating | Lightweight compact design and height adjustment suit multi-user shared desk setups for student use | |
| Hard floor environments | Rubber non-marking glides protect tile, wood and polished concrete floors without scratches, unlike hard plastic feet or casters | |
| Conference and meeting room guest seating | 360° swivel allows easy conversation between meeting participants without armrest obstructions, and slim profile maximizes room seating capacity | |
| Reception and visitor waiting areas | Sleek polished chrome base and tailored stitched upholstery provide a professional appearance for visitor seating with easy wipe-clean maintenance for high-turnover use |
EU Market Access Requirements* EN Standards
| EN 1335-1:2020 | Applicable European standard for office work chairs, defining dimensional requirements for task chair seating dimensions for commercial office procurement | |
|---|---|---|
| EN 1335-2:2018 | Applicable European standard for office work chair safety requirements, to verify structural strength, stability and gas lift safety for commercial installations | |
| EN 1021-1:2014 | Applicable European standard for upholstered furniture ignitability (smouldering cigarette), a standard fire safety requirement for contract office furniture |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applicable North American standard for office chairs, defining static load, durability and stability test methods for general-purpose office seating |
|---|
Standards applicable to China-market projects
| GB/T 3326-2016 | Applicable standard for furniture table, chair and bench main dimensions, for verifying seat height, width and depth dimensional tolerances during procurement inspection | |
|---|---|---|
| GB/T 35607-2017 | Applicable national standard for green product evaluation of furniture, for requesting formaldehyde and VOC emission testing from suppliers for indoor office use | |
| GB 28007-2011 | Applicable standard for children's furniture not relevant; reference GB/T 10357.3for furniture mechanical performance testing of chair strength and stability | |
| GB/T 10357.3-2013 | Applicable Chinese standard for furniture mechanical performance testing of chairs, specifying static load, impact and stability test methods for seating products |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applicable standard for furniture table, chair and bench main dimensions, for verifying seat height, width and depth dimensional tolerances during procurement inspection; 2. GB/T 35607-2017: Applicable national standard for green product evaluation of furniture, for requesting formaldehyde and VOC emission testing from suppliers for indoor office use; 3. GB 28007-2011: Applicable standard for children's furniture not relevant; reference GB/T 10357.3for furniture mechanical performance testing of chair strength and stability; 4. GB/T 10357.3-2013: Applicable Chinese standard for furniture mechanical performance testing of chairs, specifying static load, impact and stability test methods for seating products; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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