| Submitted | Field | Original | 修改后参数 | Note / Status |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions (W x D x H) | 700 x 730 x 1220mm | |
|---|---|---|
| Seat height range | 540mm | |
| Seat width (usable) | 510 mm | |
| Seat depth (usable) | 490 mm | |
| Backrest total height | 720 mm | |
| Backrest width (lumbar region) | 480 mm | |
| Armrest height above seat | 220 mm | |
| Armrest width per unit | 90 mm | |
| Five-star base diameter | 700 mm | |
| Caster diameter | 60 mm | |
| Seat cushion thickness | 80 mm | |
| Backrest lumbar support thickness | 60 mm | |
| Seat height range (floor to seat top) | 540mm | |
| Seat usable width (between armrests) | 500mm | |
| Seat usable depth (front edge to backrest junction) | 490mm | |
| Seat cushion total thickness (uncompressed) | 85mm |
Net weight / load capacity / users / durability
| Suggested maximum user weight | 136 kg | |
|---|---|---|
| Net weight reference range | 26kg | |
| Seat foam density | 50kg/m³ | |
| Backrest foam density | 40kg/m³ | |
| Foam rebound rate | 45% | |
| Gas lift stroke length | 100 mm | |
| Backrest tilt lock angle range | 120 degrees from vertical | |
| Caster rolling durability | ≥40,000 rolling cycles | |
| Recommended maximum static user weight | 136kg | |
| Seat foam density (molded core) | 55kg/m³ |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and backrest upholstery | 1.2mm thick light gray polyurethane (PU) leather, stitched horizontal seam segmentation | |
|---|---|---|
| Seat core padding | Molded high-resilience polyurethane foam, contoured waterfall front edge | |
| Backrest core padding | Contoured polyurethane foam with integrated lumbar support curve | |
| Armrest construction | PU-padded curved armrests with integrated structural support, matched upholstery to seat/back | |
| Tilt mechanism | 3mm thick black powder-coated steel multi-function synchro tilt chassis | |
| Gas lift | Class 3 chrome-plated steel pneumatic cylinder, 50mm outer diameter | |
| Five-star base | Polished die-cast aluminum, 2.5mm wall thickness, mirror polished finish | |
| Casters | 60mm diameter black nylon dual-wheel casters, hard/soft floor compatible | |
| Seat support plate | 1.2mm thick plywood under seat foam, mounted to steel mechanism | |
| Stitching detail | 9 stitches per inch matching light gray thread, clean horizontal seam construction | |
| Seat internal support plate | 1.4mm thick multi-ply birch plywood or 1.2mm steel plate under seat foam, bolted to steel tilt chassis | |
| Stitching and seam construction | 10 stitches per inch matching light gray bonded polyester thread, reinforced stress points at seat and armrest edges |
Adjustment / rotation / tilt / mobility / storage features
| 360-degree swivel rotation | Full rotation enabled by central gas lift and base assembly, no rotational stops | |
|---|---|---|
| Pneumatic seat height adjustment | 100mm vertical travel, actuated by side-mounted black adjustment lever, locks at any height within range | |
| Synchro back tilt with lock | Back tilts 25 degrees from upright position at a 1:2.5 seat-to-back ratio, locks in upright working position | |
| Fixed padded armrests | Curved ergonomic armrests provide 220mm support height above seat, no height/width adjustment, integrated with seat frame | |
| Waterfall seat edge design | Contoured front seat edge reduces pressure on back of thighs during extended seated use | |
| Ergonomic segmented back support | Three-section stitched backrest provides targeted upper back, mid-back and lumbar support contour | |
| Smooth rolling mobility | Dual-wheel nylon casters allow 360-degree movement on carpet, hardwood, tile and standard office flooring | |
| Tilt tension adjustment | Knob under seat adjusts tilt resistance to match user weight for controlled recline | |
| 360-degree unlimited swivel rotation | Full unobstructed 360-degree rotation enabled by central gas lift rotary bearing and five-star base assembly, no rotational stops, for multi-directional access to work surfaces | |
| Synchro-tilt recline with upright lock | Backrest tilts 28 degrees from upright position at an imate 1:2.2 seat-to-back tilt ratio, lever-activated lock secures chair in full upright working position | |
| Fixed contoured padded armrests | Ergonomically curved upholstered armrests provide 230mm support height above seat surface, no height/width/pivot adjustment, rigidly mounted to seat frame for stable elbow support during typing and meetings | |
| Waterfall contoured seat edge | Rounded, thickened front seat edge reduces under-thigh pressure by distributing weight across the seat surface during 4+ hour seated work sessions |
Verified carton / gross weight / assembly / loading data
| Reference Package Count | 1 set / 2 cartons | |
|---|---|---|
| Reference Assembly Time | 40minutes per set | |
| Reference Carton Dimensions | 850 × 420 × 720mm | |
| Reference Packaged Gross Weight | 23kg/set | |
| Reference Carton Volume | 0.26m³/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 | High-back upholstered design provides professional aesthetics and full back support for senior management during full workdays | |
|---|---|---|
| Conference/meeting room seating | Padded fixed armrests and neutral light gray finish match formal conference table configurations for extended meeting use | |
| Home office executive workspace | Polished aluminum base and smooth upholstery suit premium home office setups with standard 760mm desk height | |
| Managerial open-plan workstations | Stable 5-star base and height adjustment support multi-task work including computer use, document review and phone calls | |
| Executive reception guest areas | Formal design and light gray color scheme create a polished, welcoming seating option for visitor seating in lobbies or private meeting spaces | |
| Standard ergonomic user fit | Seat dimensions and height range suit users 190cm tall for comfortable seated posture | |
| Formal conference/boardroom seating | Neutral light gray upholstery and polished metal base match high-end conference table configurations, fixed padded armrests and controlled recline provide comfortable support for 3 hour meetings and presentations | |
| Executive reception and VIP guest areas | Polished formal design and neutral color create a welcoming, professional seating option for VIP visitors in lobbies, executive waiting areas and private meeting suites, matching modern commercial interior design schemes |
European market access and chemical requirements
| EN 1335-1:2020 | Applicable European standard for office chair dimensional safety and performance requirements, for ergonomic dimension checks | |
|---|---|---|
| EN 1335-2:2018 | Applicable European standard for office chair mechanical stability, strength and durability testing requirements | |
| EN 1022:2018 | Applicable European standard for seating furniture stability determination, for static and dynamic stability testing |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applicable standard for general purpose office chairs, covering static load, fatigue, stability and durability performance metrics | |
|---|---|---|
| ANSI/BIFMA X5.11-2015 | Applicable standard for heavy-person office chair rating if 159kg capacity is specified, for larger user weight accommodation | |
| Seat surface static load rating | 1136 kg |
Standards applicable to China-market projects
| GB/T 3326-2016 | Applicable standard for office furniture chair dimension measurement and size tolerances, for finished product dimension inspection | |
|---|---|---|
| GB/T 24821-2009 | Applicable standard for office chair mechanical performance testing, including static load, fatigue and stability requirements | |
| GB 20210-2006 | Applicable standard for fire safety of upholstered furniture seating components, for flame spread resistance testing |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applicable standard for office furniture chair dimension measurement and size tolerances, for finished product dimension inspection; 2. GB/T 24821-2009: Applicable standard for office chair mechanical performance testing, including static load, fatigue and stability requirements; 3. GB 20210-2006: Applicable standard for fire safety of upholstered furniture seating components, for flame spread resistance testing; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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