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|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 690 x 650 x 950 mm | |
|---|---|---|
| Seat width | 510 mm | |
| Seat depth | 460 mm | |
| Maximum seat height | 610 mm | |
| Minimum seat height | 460 mm | |
| Backrest height | 410 mm | |
| Backrest width | 480 mm | |
| 4-star base cross span | 640 mm | |
| Gas lift outer diameter | 50 mm | |
| Seat cushion thickness | 80 mm | |
| Bentwood back panel thickness | 12 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 range | 16 kg | |
|---|---|---|
| Recommended static weight capacity | 150 kg | |
| Seat foam density | 45 kg/m³ | |
| Seat foam rebound rate | 45% | |
| Back foam thickness | 20 mm | |
| Upholstery abrasion resistance (Martindale) | 50000 cycles | |
| Base static load rating | 500 kg | |
| Seam stitch pitch | 8 stitches per 30mm | |
| Recommended daily use duration | 8 hours | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat upholstery | Tan PU (faux leather) with smooth matte finish, edge-wrapped over contoured seat pan | |
|---|---|---|
| Back structure | Walnut-veneered bent plywood with visible wood grain on outer surface, upholstered tan front panel | |
| Seat cushion padding | High-density molded polyurethane foam, wrapped in thin polyester batting for soft edge feel | |
| Back padding | Thin polyurethane foam layer between bentwood shell and upholstery | |
| 4-star base | Polished die-cast aluminum alloy, one-piece cross construction with brushed polished finish | |
| Height adjustment mechanism | Chrome-plated steel class 3 gas lift cylinder with black plastic height adjustment lever | |
| Floor glides | Black non-marking injection-molded polymer glides pressed into base leg ends | |
| Internal seat support plate | 2.5mm thick powder-coated steel plate connecting seat pan to swivel mechanism | |
| Swivel bearing | Steel ball bearing swivel mechanism between gas lift and seat plate for 360-degree rotation | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board | |
| Backrest Internal Frame Thickness | 14 mm bent plywood/composite reinforced frame | |
| Gas-lift Engineering Specification | Recommended Class 4; outer tube 50 mm; stroke 100 mm |
Adjustment / rotation / tilt / mobility / storage features
| 360-degree swivel rotation | Full unobstructed rotation around central vertical axis via sealed ball bearing swivel, no swivel lock feature | |
|---|---|---|
| Pneumatic seat height adjustment | 150 mm vertical adjustment stroke activated by side lever under right side of seat, allowing infinite height lock between minimum and maximum positions | |
| Fixed backrest angle | 105 degree fixed reclined angle between seat pan and backrest, no tilt or recline adjustment mechanism visible | |
| Floor protection | Hard non-marking polymer glides suitable for hard flooring (wood, tile, vinyl), no rolling casters installed | |
| Armless access | No armrests to allow close tucking under desk surfaces and flexible side seating positions | |
| Stable stationary support | 4-point wide base contact for static use, no tilt tension or rocking function present | |
| 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
| Packaged carton count | 1 carton | |
|---|---|---|
| Packaged carton dimensions | 710 x 660 x 460 mm | |
| Packaged gross weight | 19 kg | |
| Packaged volume (CBM) | 0.22 cbm | |
| Assembly time | 30 minutes | |
| 20ft container loading quantity | 220 units | |
| 40HQ container loading quantity | 540 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
| Home office workstation | Suitable for compact home desk setups where armless design allows full tuck-in under desk to save space | |
|---|---|---|
| Small meeting or conference room seating | Appropriate for light meeting use with 360-degree swivel for conversation access, no casters to prevent unwanted movement during discussions | |
| Bedroom vanity or study desk use | Suitable as a vanity chair with height adjustment to match standard vanity desk heights, armless design allows close access to tabletops | |
| Open plan co-working space seating | Applicable for hot-desking stations with durable faux leather upholstery that resists stains and easy cleaning between users | |
| Design studio creative workspace | Matches mid-century modern and contemporary studio interiors, polished aluminum base adds premium aesthetic without high cost | |
| 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 | Applicable European standard for office chair dimensional safety and performance requirements for task seating | |
|---|---|---|
| EN 1335-2:2018 | Applicable European standard for office chair strength, durability and stability testing requirements | |
| EN 12520:2015 | Applicable standard for furniture seating strength, durability and safety for domestic and contract use |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1 Test 5 | Applicable static load test for chair base, requiring minimum 1134 kg static load for 4-star office chair bases |
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Standards applicable to China-market projects
| GB/T 3326-2016 | Applicable standard for furniture desk and chair dimensional stability, strength and durability testing for office seating | |
|---|---|---|
| GB/T 16799-2008 | Applicable standard for polyurethane (faux) leather upholstery material performance requirements for furniture use | |
| GB 28007-2011 | Applicable standard for strength and stability requirements for office chairs used in general work environments | |
| GB 18584-2001 | Applicable standard for formaldehyde emission limits from wood-based panel components including bent plywood back structure |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applicable standard for furniture desk and chair dimensional stability, strength and durability testing for office seating; 2. GB/T 16799-2008: Applicable standard for polyurethane (faux) leather upholstery material performance requirements for furniture use; 3. GB 28007-2011: Applicable standard for strength and stability requirements for office chairs used in general work environments; 4. GB 18584-2001: Applicable standard for formaldehyde emission limits from wood-based panel components including bent plywood back structure; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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