| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions (upright, footrest retracted) | 820 x 820 x 1230 mm | |
|---|---|---|
| Seat height adjustable range maximum | 570 mm | |
| Seat cushion depth | 520 mm | |
| Seat cushion width | 560 mm | |
| Backrest total height | 780 mm | |
| Retractable footrest extension length | 420 mm | |
| Armrest height above seat | 230 mm | |
| Five-star base diameter | 700 mm | |
| Seat cushion thickness | 140 mm | |
| Caster diameter | 60 mm | |
| Footrest extended total depth | 1240 mm | |
| Integrated headrest height | 180 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
| Recommended maximum user weight | 180 kg | |
|---|---|---|
| Net weight (chair only) | 28 kg | |
| Recline locking maximum angle | 135 degrees | |
| Gas lift class rating | Class 4 | |
| Gas lift stroke length | 120 mm | |
| Seat foam density | 45 kg/m³ | |
| Foam rebound rate | 60% | |
| Caster rolling durability cycles | 60000 cycles | |
| Upholstery abrasion resistance | 50000 Martindale cycles | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back upholstery | Two-tone light/dark grey leather or PU leather | |
|---|---|---|
| Seat cushion core | Dual-layer high-density foam with soft top layer | |
| Internal support frame | 1.8mm thick reinforced steel tubular frame | |
| Five-star base | Chrome-plated polished steel | |
| Armrest structure | Padded upholstered base with high-gloss hard top surface and chrome edge trim | |
| Footrest support | Chrome-plated steel slide mechanism with padded upholstered rest | |
| Caster wheels | Dual-wheel PU tread casters with metal mounting stems | |
| Recline mechanism plate | 3mm thick stamped steel with tension adjustment dial | |
| Seam construction | 8 stitches per 30mm neat upholstery stitching | |
| Lower side trim | Dark brown/black durable matching upholstery panel | |
| 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 | Lever-operated height adjustment with 120mm stroke via Class 4 gas lift | |
|---|---|---|
| Lockable backrest recline | 135-degree maximum recline with infinite position locking and tension adjustment | |
| Retractable integrated footrest | Slide-out footrest extending 420mm from seat front for napping support | |
| 360-degree swivel rotation | Full rotation around central gas lift axis for easy desk access | |
| Smooth rolling mobility | Dual-wheel PU casters suitable for hard wood floors and low-pile carpet | |
| Recline tension control | User-adjustable spring tension to match user weight for recline resistance | |
| Integrated head and lumbar support | Segmented padded backrest with built-in lumbar contour and headrest pillow | |
| Wide armrest support | Padded armrests with hard flat top surfaces for stable arm resting and control placement | |
| 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 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 | |
| Indicative 40HQ Loading | 320 sets at 85% space utilization |
Recommended spaces / users / usage modes
| Executive private office | Suitable for manager/executive desks, supporting upright work and reclined rest | |
|---|---|---|
| Home office workspace | Appropriate for premium home office setups requiring napping function | |
| Leadership conference rooms | Usable as premium seating for meeting rooms or boardrooms | |
| Nap-enabled workspaces | Ideal for offices supporting short midday rest breaks | |
| Hard floor installations | PU casters suitable for wood, tile and laminate office floors | |
| Carpeted work areas | Standard caster design rolls smoothly on low to medium pile office carpet | |
| 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 standard for office chair dimensional and safety requirements | |
|---|---|---|
| EN 1022:2018 | Applicable standard for seating stability testing | |
| EN 1335-3:2020 | Applicable standard for office chair structural strength and durability |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 Clause 17 | Applicable caster and base durability test requirement |
|---|
Standards applicable to China-market projects
| GB/T 3326-2016 | Applicable standard for office chair dimensional stability and strength testing | |
|---|---|---|
| GB/T 16799-2008 | Applicable standard for leather/faux leather upholstery material performance | |
| GB 28007-2011 | Applicable standard for caster and base static/dynamic load testing |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applicable standard for office chair dimensional stability and strength testing; 2. GB/T 16799-2008: Applicable standard for leather/faux leather upholstery material performance; 3. GB 28007-2011: Applicable standard for caster and base static/dynamic load testing; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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