| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 640 x 700 x 1210 mm | |
|---|---|---|
| Seat width | 590 mm | |
| Seat depth | 480 mm | |
| Seat height from floor | 520 mm | |
| 5-star base diameter | 700 mm | |
| Caster diameter | 50 mm | |
| Backrest total height | 520 mm | |
| Headrest dimensions | 300 x 150 mm | |
| Armrest height above seat | 240 mm | |
| Armrest outer spacing | 640 mm | |
| Seat cushion thickness | 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
| Recommended static load capacity | 250 kg | |
|---|---|---|
| Net weight reference | 19 kg | |
| Caster rolling durability | 100000 cycles | |
| Gas lift cycle durability | 300000 cycles | |
| Tilt mechanism cycle durability | 300000 cycles | |
| Seat foam density | 45 kg/m³ | |
| Seat foam rebound rate | 60% | |
| Upholstery abrasion resistance | 50000 cycles | |
| Seam stitch pitch | 8 mm | |
| Recommended maximum static user load | 150 kg |
Core acceptance fields · Panels / hardware / frame / upholstery
| Upholstery fabric | 300g/m² light grey polyester woven fabric | |
|---|---|---|
| Seat cushion core | 80mm thick high-density molded polyurethane foam | |
| Backrest pads | Contoured molded foam with fabric wrap, split double upper panels plus separate lumbar pad | |
| Structural frame | White fiberglass-reinforced polypropylene back and seat shell | |
| 5-star base | 700mm diameter glass-filled nylon white finished base | |
| Casters | 50mm diameter black PU soft tread casters with silver accent rings | |
| Gas lift | Steel Class 3 pneumatic gas lift with black plastic trim ring | |
| Tilt mechanism | 2mm thick steel explosion-proof tray plate with tension adjustment | |
| Armrests | Fixed padded armrests with white PP support structure and grey fabric padded top | |
| Headrest | Curved molded foam pad with fabric wrap, mounted on white height-adjustable support post | |
| Upper back pads | 60mm thick contoured molded foam with fabric wrap, split dual floating panels | |
| Lumbar support pad | 50mm thick dedicated curved molded foam pad with fabric wrap |
Adjustment / rotation / tilt / mobility / storage features
| Height adjustment | Pneumatic gas lift provides 100mm seat height travel via side lever | |
|---|---|---|
| Swivel function | 360-degree full rotation around central gas lift axis | |
| Backrest recline | Tilt mechanism allows 45-degree recline from upright to 135-degree locked position | |
| Tilt tension adjustment | Knob under seat adjusts recline resistance to match user weight | |
| Headrest adjustment | Height-adjustable curved headrest supports neck posture during recline | |
| Lumbar support | Dedicated separate lower back pad provides targeted mid-lumbar pressure relief | |
| Mobility | Dual-wheel casters roll smoothly on hard floors and low-pile carpet | |
| Back support design | Split double floating upper back panels flex to match natural spine curvature | |
| 360-degree swivel | Full 360-degree rotation around central gas lift axis for multi-directional access | |
| Targeted lumbar support | Dedicated separate lower back pad delivers consistent mid-lumbar pressure relief | |
| Smooth mobility | Soft PU dual-wheel casters roll without marking on hard floors and low-pile carpet | |
| Waterfall seat edge | Contoured front seat edge reduces thigh pressure during long seated sessions |
Verified carton / gross weight / assembly / loading data
| Packaging note | Knocked-down assembly required, hardware pack included | |
|---|---|---|
| Carton count | 1 unit per single heavy-duty corrugated carton | |
| 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
| Home office workspace | Suits long-hour desk work at standard 760 mm height office desks | |
|---|---|---|
| Corporate open plan office | Appropriate for individual workstations with casual modern aesthetic | |
| Co-working shared space | Swivel and mobility features support flexible multi-user work environments | |
| Student study desk setup | Ergonomic segmented back support reduces fatigue during long study sessions | |
| Conference meeting room | Neutral grey/white color scheme coordinates with modern conference furniture | |
| Small meeting room | 360-degree swivel and compact footprint support easy interaction during meetings | |
| Executive private office | Dual-panel back and lumbar support provide premium comfort for senior staff | |
| Recommended Matching Desk Size | 2.4 m executive desk |
EU Market Access Requirements* EN Standards
| EN 1335-1:2020 | Applies to office chair dimensional, safety and strength performance requirements | |
|---|---|---|
| EN 1335-2:2020 | Applies to office chair mechanical safety test methods for structural components | |
| EN 1022:2018 | Applies to office chair stability testing for all intended use positions |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applies to general-purpose office chair performance and durability test requirements |
|---|
Standards applicable to China-market projects
| GB/T 3326-2016 | Applies to office chair dimensional accuracy and stability measurement requirements | |
|---|---|---|
| GB/T 10357.3-2013 | Applies to office chair seat and backrest strength and durability test methods | |
| GB 28007-2011 | Applies to office chair caster strength and rolling durability requirements | |
| GB/T 39223-2020 | Covers ergonomic performance evaluation requirements for office seating |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applies to office chair dimensional accuracy and stability measurement requirements; 2. GB/T 10357.3-2013: Applies to office chair seat and backrest strength and durability test methods; 3. GB 28007-2011: Applies to office chair caster strength and rolling durability requirements; 4. GB/T 39223-2020: Covers ergonomic performance evaluation requirements for office seating; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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