| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 680 x 680 x 1080 mm | |
|---|---|---|
| Seat width | 520 mm | |
| Seat depth | 490 mm | |
| Seat height adjustment range | 520 mm | |
| Backrest height | 600 mm | |
| Backrest width | 480 mm | |
| Armrest height above seat | 220 mm | |
| Five-star base diameter | 680 mm | |
| Caster diameter | 60 mm | |
| Seat cushion thickness | 80 mm | |
| Backrest cushion thickness | 60 mm | |
| Armrest pad dimensions | 280 x 80 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
| Product net weight | 22 kg | |
|---|---|---|
| Recommended daily usage duration | 8 hours | |
| Tilt mechanism lock positions | 3 positions | |
| Seat tilt angle range | 14degrees | |
| Backrest recline angle range | 120degrees | |
| Gas lift cycle durability | 100000 cycles | |
| Caster rolling durability | 100000 cycles | |
| Recommended maximum daily usage duration | 8 hours | |
| Maximum seat tilt angle | 14 degrees | |
| Maximum backrest recline angle | 120 degrees |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back upholstery | 1.4mm thick top-grain aniline dyed cognac brown leather, 4mm stitch pitch along all seams | |
|---|---|---|
| Seat cushion core | 50kg/m³ high-density molded polyurethane foam, 45% rebound rate | |
| Backrest cushion core | 40kg/m³ high-density contoured polyurethane foam, 40% rebound rate | |
| Back outer shell | Brushed and polished die-cast aluminum, 3mm panel thickness | |
| Seat side support frame | Brushed and polished die-cast aluminum, 4mm structural wall thickness | |
| Armrest support brackets | Polished die-cast aluminum rectangular section, 5mm wall thickness | |
| Armrest pads | Same cognac leather upholstery over 20mm thick high-density foam padding | |
| Tilt mechanism | 2.5mm thick powder-coated steel synchro-tilt chassis with tension adjustment knob | |
| Pneumatic gas lift | Class 3 chrome-plated steel gas lift, 50mm outer diameter, 100mm stroke | |
| Five-star base | Polished die-cast aluminum five-prong base, 4mm leg wall thickness, polished chrome finish | |
| Casters | 60mm diameter black nylon dual-wheel casters, soft tread for hard floor use | |
| Back outer support shell | Polished die-cast aluminum, 3mm panel thickness |
Adjustment / rotation / tilt / mobility / storage features
| Seat height adjustment | Pneumatic height adjustment via under-seat lever, 100mm total travel to accommodate user heights 190 cm | |
|---|---|---|
| Backrest recline function | Synchro-tilt recline where backrest reclines at 1:2.2 ratio relative to seat tilt, reducing leg pressure during recline | |
| Tilt tension adjustment | Rotary tension knob under front of seat adjusts recline resistance from 40N to 120N to match different user weights | |
| Tilt position locking | 3-position lock lever allows users to secure the chair in upright work, mid-recline meeting, or full-recline rest positions | |
| 360-degree swivel function | Full 360-degree horizontal rotation on central gas lift bearing for easy access to desk areas without standing | |
| Smooth mobility | Dual-wheel casters roll freely on carpet, tile and wood flooring, with 360-degree caster swivel for multidirectional movement | |
| Fixed armrest support | Rigid fixed armrests positioned at standard desk height, providing stable forearm support during typing and meeting tasks | |
| Ergonomic lumbar support | Contoured backrest shape provides built-in lumbar support aligned to the natural inward curve of the lower spine | |
| Backrest synchro-recline | Synchro-tilt mechanism where backrest reclines at 2.2:1 ratio relative to seat tilt, reducing leg and back pressure during recline | |
| 360-degree swivel | Full 360-degree horizontal rotation on central gas lift thrust bearing for easy access to surrounding desk/table areas without standing | |
| Multidirectional mobility | Dual-wheel casters roll freely on low-pile carpet, ceramic tile and sealed wood flooring, with 360-degree caster swivel for zero-turn movement | |
| Built-in lumbar support | Contoured backrest shape provides fixed lumbar support aligned to the natural inward curve of the lower spine for seated durations up to 8 hours |
Verified carton / gross weight / assembly / loading data
| Number of shipping cartons | 1 carton | |
|---|---|---|
| Shipping carton dimensions | 720 x 660 x 580 mm | |
| Gross shipping weight | 26 kg | |
| Shipping volume per unit | 0.275 CBM | |
| Assembly time | 20 minutes | |
| 20ft GP container loading quantity | 232 units | |
| 40ft HQ container loading quantity | 581 units | |
| Packaging materials | 5-layer corrugated carton, EPS foam edge protection, PE plastic wrap for metal parts, hardware kit with hex key and assembly instructions | |
| On-site assembly time | 20 minutes | |
| Reference Package Count | 1 set / 2 cartons |
Recommended spaces / users / usage modes
| Executive private office | Suitable for director and executive private offices, with premium leather and polished aluminum finish matching high-end professional office aesthetic | |
|---|---|---|
| Corporate boardrooms and meeting rooms | Suitable for formal boardroom and meeting space seating, with premium leather and polished aluminum finish matching high-end corporate interior design, providing upright support for 4 hour meeting durations | |
| Home office premium workspace | Suitable for high-end residential home offices, combining executive comfort with refined cognac leather aesthetic matching contemporary interior design | |
| Executive reception areas | Suitable for VIP reception and visitor seating areas, projecting a professional and welcoming image for corporate guests | |
| Height-adjustable desk compatibility | Compatible with standard 720mm fixed desks and 1250 mm height-adjustable desks, with adjustable seat height and fixed armrests aligned to standard desk work surfaces | |
| Commercial co-working premium spaces | Suitable for premium co-working private office suites, delivering durable commercial-grade construction for high-usage shared work environments | |
| Executive private offices | Suitable for director and C-suite private offices, delivering refined aesthetic and 8-hour shift comfort for desk work and guest discussions | |
| VIP reception and visitor areas | Suitable for corporate VIP reception zones, projecting a professional, polished image for visiting guests while maintaining upright, formal seated posture |
EU Market Access Requirements* EN Standards
| EN 1335-1:2020 | Applicable European standard for office furniture - office chairs, defining dimensional, safety and strength requirements for task and executive seating | |
|---|---|---|
| EN 1335-2:2018 | Applicable European standard for office chair safety requirements, specifying stability, static load and fatigue test performance criteria | |
| EN 1021-1:2014 | Applicable European standard for upholstered furniture flammability, specifying cigarette ignition resistance requirements for seating upholstery |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 Clause 5 | Applicable backrest durability test requirement specifying 120000 cycles of 445N back force without structural failure | |
|---|---|---|
| Maximum user weight capacity | 150 kg | |
| Seat static load capacity | 1136 kg |
Standards applicable to China-market projects
| GB/T 3326-2016 | Applicable standard for furniture size measurement of tables and chairs, specifying dimensional tolerance and measurement method requirements for office seating | |
|---|---|---|
| GB/T 24821-2009 | Applicable quality standard for office chairs, specifying structural strength, stability and durability test requirements for commercial seating | |
| GB 20210-2006 | Applicable fire safety standard for upholstered furniture, requiring flame retardant performance for upholstery and foam components in public space use |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applicable standard for furniture size measurement of tables and chairs, specifying dimensional tolerance and measurement method requirements for office seating; 2. GB/T 24821-2009: Applicable quality standard for office chairs, specifying structural strength, stability and durability test requirements for commercial seating; 3. GB 20210-2006: Applicable fire safety standard for upholstered furniture, requiring flame retardant performance for upholstery and foam components in public space use; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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