| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall assembled dimensions | 635 x 686 x 1321 mm | |
|---|---|---|
| Seat width | 483 mm | |
| Seat depth | 483 mm | |
| Backrest height | 660 mm | |
| Seat height adjustment range (floor to seat top) | 457 to 565 mm | |
| 5-star base diameter | 686 mm | |
| Caster wheel diameter | 50 mm | |
| Gas lift cylinder outer diameter | 50 mm | |
| Seat cushion thickness | 80 mm | |
| Backrest cushion thickness | 70 mm | |
| Bentwood shell 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 product weight | 19.8 kg | |
|---|---|---|
| Recommended maximum user weight | 136 kg | |
| Seat foam density | 40 kg/m³ | |
| Back foam density | 32 kg/m³ | |
| Foam rebound rate | 45% | |
| Upholstery abrasion resistance | 50000 double rubs | |
| Gas lift static load rating | 150 kg | |
| Caster rolling durability | 100000 cycles | |
| Tilt mechanism recline angle | 15 degrees | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back upholstery | Black smooth polyurethane (PU) faux leather, 1.0mm thickness | |
|---|---|---|
| Outer structural shell | 12mm bent walnut plywood with natural clear lacquer finish | |
| Seat padding | High-density molded polyurethane foam, 80mm thick | |
| Back padding | Medium-density molded polyurethane foam, 70mm thick | |
| 5-star base | 1.5mm thick polished chrome-plated steel, radial 5-leg design | |
| Pneumatic height adjustment cylinder | 50mm diameter chrome-plated steel, Class 3 pressure rating | |
| Tilt and height control mechanism | 2.5mm thick powder-coated steel chassis with side actuation lever | |
| Caster wheels | 50mm diameter dual-wheel black nylon with polyurethane tread, hard-floor rated | |
| Assembly hardware | Zinc-plated steel bolts, hex key included | |
| Seat-to-base connection plate | 3mm thick steel mounting plate connecting shell assembly to tilt mechanism | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board | |
| Backrest Internal Frame Thickness | 14 mm bent plywood/composite reinforced frame |
Adjustment / rotation / tilt / mobility / storage features
| Pneumatic seat height adjustment | Side-lever actuated gas lift provides 108mm of vertical seat travel, allowing seat height to be set between 457mm and 565mm from floor for compatibility with standard 760 mm desk heights | |
|---|---|---|
| 360-degree swivel rotation | Full rotation around central gas lift axis for easy access to surrounding workspace without moving the chair base | |
| Reclining tilt function | Chassis allows 15-degree backward recline of seat and back assembly, with adjustable tension knob to modify recline resistance based on user weight | |
| Upright tilt lock | Single-position lock secures backrest in fully upright position for focused desk work, released via secondary control lever | |
| Smooth-rolling mobility | Five dual-wheel casters allow easy movement on hard floor surfaces; polyurethane tread reduces floor scratching and rolling noise | |
| Ergonomic contoured support | Molded seat and back cushions follow natural body contours, with waterfall seat front edge to reduce leg pressure during extended sitting | |
| Armless clearance design | No protruding armrests, allowing full unobstructed movement under low-profile desks and conference tables | |
| Fixed bentwood lumbar support | Curved back shell and cushion provide built-in lumbar support aligned to the natural lower back curve, no separate adjustable lumbar pad | |
| 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
| Number of shipping cartons | 1 | |
|---|---|---|
| Shipping carton dimensions | 864 x 762 x 610 mm | |
| Gross shipping weight | 24.9 kg | |
| Packaging volume (CBM) | 0.402 | |
| Required assembly time | 30 minutes | |
| 20ft GP container loading quantity | 165 units | |
| 40ft GP container loading quantity | 343 units | |
| 40ft HQ container loading quantity | 400 units | |
| Included packaging materials | Polyethylene foam corner protection, corrugated carton, plastic hardware bag, printed assembly instruction manual | |
| Reference Package Count | 1 set / 2 cartons |
Recommended spaces / users / usage modes
| Executive private office | High-back support and mid-century walnut finish complement professional executive workspaces, paired with 760 mm height executive desks for full-time desk work | |
|---|---|---|
| Home office workspace | Compact armless profile and modern wood finish fit residential home office environments, suitable for users working from home at standard writing or computer desks | |
| Small conference and meeting rooms | Swivel and tilt functionality supports collaborative meeting use, while armless design allows flexible seating around conference tables without arm clearance issues | |
| Creative studio and co-working spaces | Modern aesthetic and durable faux leather upholstery withstand frequent use in shared work environments, with easy-to-clean surface suitable for high-turnover spaces | |
| Hard floor surface compatibility | Soft polyurethane caster tread is designed for use on wood, tile and laminate hard floors; a chair mat is recommended for carpeted surfaces to optimize rolling performance | |
| Recommended desk height pairing | Compatible with standard office desks between 720mm and 760mm in height, aligning with the chair's 565 mm adjustable seat height range | |
| 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 work chair dimensional requirements, defining critical seat, back and clearance dimensions for ergonomic desk use in EU markets | |
|---|---|---|
| EN 1335-2:2018 | Applies to office chair safety requirements, covering structural integrity, stability and component durability for commercial seating | |
| EN 1335-3:2009 | Applies to office chair test methods, specifying standardized procedures for verifying strength, durability and stability performance |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applies to general-purpose office chair performance requirements, defining static load, cyclic durability, stability and impact test criteria for North American market supply | |
|---|---|---|
| ANSI/BIFMA X5.11-2015 | Applies to heavy-duty office chair requirements for users up to 159kg, applicable for high-capacity executive chair variants | |
| 5-star base static load rating | 1136 kg |
Standards applicable to China-market projects
| GB/T 3326-2016 | Applies to dimensional tolerance and stability testing for office desks and chairs, specifying acceptable size variation and anti-tipping requirements for domestic market supply | |
|---|---|---|
| GB/T 10357.2-2013 | Applies to mechanical stability testing of office chairs, verifying forward, rearward and lateral tipping resistance under standard load conditions | |
| GB/T 10357.3-2013 | Applies to strength and durability testing of chair seats, backs and armrests (where present), specifying cyclic load and static load test levels for office seating |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applies to dimensional tolerance and stability testing for office desks and chairs, specifying acceptable size variation and anti-tipping requirements for domestic market supply; 2. GB/T 10357.2-2013: Applies to mechanical stability testing of office chairs, verifying forward, rearward and lateral tipping resistance under standard load conditions; 3. GB/T 10357.3-2013: Applies to strength and durability testing of chair seats, backs and armrests (where present), specifying cyclic load and static load test levels for office seating; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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