| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions (W×D×H) | 660 × 680 × 1150 mm | |
|---|---|---|
| Seat width | 520 mm | |
| Seat depth | 500 mm | |
| Seat height range | 530 mm | |
| Backrest height | 700 mm | |
| Backrest width (at widest point) | 510 mm | |
| Armrest height above seat | 220 mm | |
| Armrest width (pad contact area) | 70 mm | |
| Five-star base diameter | 340 mm | |
| Caster diameter | 50 mm | |
| Seat foam thickness (center cushion) | 80 mm | |
| Backrest foam thickness | 60 mm | |
| Chrome gas lift outer tube diameter | 50 mm | |
| Seat waterfall front edge overhang | 40 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 | 24 kg | |
|---|---|---|
| Recommended static load capacity | 150 kg | |
| Tilt mechanism cycle rating (reference) | 300000 cycles | |
| Seat foam density | 45 kg/m³ | |
| Backrest foam density | 40 kg/m³ | |
| Caster rolling durability rating | 100000 rolling cycles | |
| Gas lift Class rating (reference) | Class 3 | |
| Five-star base static load rating | 1136 kg | |
| Stitching seam pitch | 3 stitches per 10 mm | |
| Upholstery abrasion resistance (Martindale reference) | 50000 cycles | |
| Recommended daily use duration | 8 hours | |
| Recommended maximum static occupant load | 150 kg | |
| Tilt mechanism cyclic durability rating | ≥300,000 cycles | |
| Seat cushion foam density | 45 kg/m³ | |
| Gas lift safety rating | Class 3 | |
| Upholstery seam stitch pitch | 3 stitches per 10 mm |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and backrest upholstery | Two-tone brown-grey PU faux leather with contrast stitching | |
|---|---|---|
| Seat cushion padding | High-density molded polyurethane foam | |
| Backrest padding | Contoured high-density polyurethane foam with built-in lumbar curve | |
| Armrest frames | Polished chrome-plated curved steel/aluminum with padded top surfaces | |
| Five-star base | Polished die-cast aluminum (chrome finish) | |
| Pneumatic gas lift | Chrome-plated steel Class 3 gas cylinder | |
| Tilt/height adjustment mechanism | 2.5mm thick black powder-coated steel mechanism plate | |
| Caster wheels | Black dual-wheel nylon casters | |
| Internal seat support frame | 1.2mm thick plywood or steel inner frame | |
| Adjustment levers | Reinforced black nylon lever handles | |
| Armrest padding | Soft polyurethane foam pad wrapped in matching faux leather | |
| Armrest support frames | Polished chrome-plated curved steel frame with padded top surfaces | |
| Tilt control chassis | 2.5mm thick black powder-coated steel mechanism plate with spring tilt assembly | |
| Internal seat support structure | 1.2mm thick steel or multi-ply hardwood inner seat pan | |
| Adjustment controls | Reinforced black nylon lever and tension knob handles | |
| Hardware fasteners | Zinc-plated steel bolts, nuts and assembly hardware | |
| 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
| 360-degree swivel rotation | Full 360° horizontal rotation enabled by central gas lift bearing, allowing unrestricted turning without moving the base | |
|---|---|---|
| Pneumatic seat height adjustment | 80mm vertical height adjustment controlled by front lever under seat, adjusting seat height from 450mm to 530mm to suit standard office desk heights 760 mm | |
| Tilt recline function | 15° backward backrest recline with adjustable tension control, activated by second lever/knob to match user body weight | |
| Tilt lock feature | Single-position upright lock to fix backrest in vertical working position for focused desk tasks | |
| Rolling mobility | Five dual-wheel casters enable smooth rolling on low-pile carpet and hard floor surfaces, with 360° caster rotation for easy movement around workstations | |
| Fixed curved arm support | Non-adjustable padded armrests positioned to support forearms during typing, reducing shoulder strain during extended desk work | |
| Waterfall seat edge pressure relief | Curved front seat edge reduces pressure on back of thighs, improving blood flow during long periods of sitting | |
| Contoured lumbar support | Curved mid-back shaping provides built-in passive lumbar support without separate adjustable pillows | |
| Integrated contoured lumbar support | Curved mid-back shaping at 220 mm above seat pan provides passive lumbar support without separate adjustable cushions, maintaining natural spinal curve | |
| Knock-down assembly design | Chair ships disassembled into backrest, seat assembly, base, gas lift, casters and hardware pack for compact shipping, requiring only standard Allen key assembly | |
| 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 carton dimensions (L×W×H) | 770 × 680 × 480 mm | |
|---|---|---|
| Reference carton external dimensions (L×W×H) | 780 × 660 × 420 mm | |
| Gross weight per carton | 27 kg | |
| CBM per carton | 0.22 m³ | |
| 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 |
Recommended spaces / users / usage modes
| Private executive office | Suitable for manager/director private offices, matching formal business decor with professional two-tone upholstery and polished chrome trim | |
|---|---|---|
| Open-plan manager workstations | Appropriate for senior staff open office workstations, providing 8-hour comfort and professional appearance without overstating executive rank | |
| Conference room seating | Can be used for formal boardroom/conference room seating around conference tables, with standard seat height fitting 760 mm conference table heights | |
| Home office workspace | Suitable for premium home office setups, providing professional ergonomic support with a polished appearance that matches home office interiors | |
| Reception/meeting visitor seating (long-stay) | Appropriate for reception areas where visitors may be seated for 30+ minute meetings, offering padded comfort compared to basic guest chairs | |
| Recommended paired furniture | Matches standard 760 mm height executive desks, wooden/metal office desks, and leather office sofas in brown/grey/black color schemes | |
| User height suitability | Fits users 185 cm tall, with adjustable seat height and contoured back supporting standard adult user sizes | |
| Open-plan senior staff workstations | Appropriate for team lead or senior specialist open office workstations, providing 8-hour ergonomic comfort with a professional appearance that does not overstate executive rank | |
| Long-stay visitor/meeting seating | Appropriate for reception or client meeting areas where visitors may be seated for 30+ minute meetings, offering thicker padding than standard guest chairs for extended comfort | |
| Recommended paired furniture configuration | Matches 760 mm height executive desks, wood or metal frame office desks, and leather office lounge seating in taupe, brown, grey or black color schemes |
EU Market Access Requirements* EN Standards
| EN 1335-1:2020 | European standard for office chairs: dimensional requirements to verify seat height, depth, backrest dimensions match ergonomic requirements for office work | |
|---|---|---|
| EN 1335-2:2018 | European standard for office chairs: safety requirements, covering structural stability, strength and durability testing for commercial office use | |
| EN 1335-3:2018 | European standard for office chairs: test methods to validate compliance with safety and performance requirements during factory inspection | |
| EN 1022:2018 | Standard for furniture seating stability testing, confirming chair does not tip over during normal use and recline |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 Clause 5 | Backrest static load test requirement of 667N applied for 1 minute without structural failure; recommended to verify during incoming quality inspection |
|---|
Standards applicable to China-market projects
| GB/T 3326-2016 | Applicable standards and test results require confirmation | |
|---|---|---|
| GB/T 10357.3-2013 | Required mechanical performance test standard for office chairs, covering seat, backrest, armrest static and fatigue load testing for commercial use | |
| GB 28007-2011 | Mandatory general safety technical requirement standard for children's furniture does not apply; for adult office use verify compliance with general furniture safety GB/T 24821for office desks and chairs | |
| GB/T 24821-2009 | Recommended standard for office chair general technical requirements, covering material, structural and durability requirements for commercial office furniture | |
| GB/T 19995.1-2005 | Recommended environmental test standard for furniture surface coatings, verifying chrome finish corrosion resistance and faux leather colorfastness |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applicable standards and test results require confirmation; 2. GB/T 10357.3-2013: Required mechanical performance test standard for office chairs, covering seat, backrest, armrest static and fatigue load testing for commercial use; 3. GB 28007-2011: Mandatory general safety technical requirement standard for children's furniture does not apply; for adult office use verify compliance with general furniture safety GB/T 24821for office desks and chairs; 4. GB/T 24821-2009: Recommended standard for office chair general technical requirements, covering material, structural and durability requirements for commercial office furniture; 5. GB/T 19995.1-2005: Recommended environmental test standard for furniture surface coatings, verifying chrome finish corrosion resistance and faux leather colorfastness; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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