| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions (upright) | 720 x 740 x 1240 mm | |
|---|---|---|
| Adjustable seat height | 550 mm | |
| Seat cushion depth | 520 mm | |
| Seat cushion width | 550 mm | |
| Backrest total height | 820 mm | |
| Five-star base diameter | 700 mm | |
| Caster wheel diameter | 50 mm | |
| Armrest height above seat | 200 mm | |
| Extendable footrest travel | 420 mm | |
| Knee clearance under seat (lowest 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 user weight capacity | 180 kg | |
|---|---|---|
| Net weight (reference) | 38 kg | |
| Seat foam density | 40 kg/m³ | |
| Seat foam thickness | 120 mm | |
| Backrest foam thickness | 80 mm | |
| Recline mechanism cycle rating | 120000 cycles | |
| Upholstery abrasion resistance | 50000 Martindale cycles | |
| Swivel rotation range | 360 degrees | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back upholstery | Black top-grain leather match with 1.2mm thickness | |
|---|---|---|
| Internal support frame | 1.5mm thick welded steel tube skeleton | |
| Armrest accent panel | Triangular natural wood veneer finish | |
| Armrest padding | 40mm thick high-density foam wrapped in matching leather | |
| Five-star base | Polished chrome-plated steel, 2mm material thickness | |
| Caster wheels | Dual-wheel polyurethane casters with metal bearing | |
| Gas lift cylinder | Class 4 steel gas lift, 50mm outer diameter | |
| Recline control lever | Polished chrome-plated metal lever | |
| Extendable footrest frame | Chrome-plated steel support with padded leather top | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board | |
| Backrest Internal Frame Thickness | 14 mm bent plywood/composite reinforced frame | |
| Tilt Mechanism Plate Thickness | 2.5 mm cold-rolled steel |
Adjustment / rotation / tilt / mobility / storage features
| Pneumatic seat height adjustment | 100mm vertical travel via Class 4 gas lift | |
|---|---|---|
| Backrest recline function | 155 degree maximum recline angle with tension control | |
| Retractable footrest | Pull-out mechanism extending 420mm from seat front | |
| Dual-wheel caster mobility | Suitable for hard floors and low-pile carpet, quiet rolling | |
| Integrated head and lumbar support | Segmented fixed padding aligned to natural spine curve | |
| Recline lock function | Multiple lock positions to secure backrest angle | |
| Padded fixed armrests | Wide padded surface supporting forearms during work or recline | |
| 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 | Premium seating for senior management and C-suite workspaces | |
|---|---|---|
| Home office study | Comfortable reclining option for remote work and midday rest | |
| Manager meeting rooms | Professional seating for small executive meeting spaces | |
| Commercial reception areas | High-end guest seating for VIP reception and waiting zones | |
| Long-duration desk work | Ergonomic support for 8+ hour daily seated work use | |
| Midday rest breaks | Recline and footrest enable short napping without leaving the workspace | |
| 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 1335-1:2000 | Office furniture - Office work chair dimensions: safety and ergonomic dimensions | |
|---|---|---|
| EN 1335-2:2018 | Office work chair safety strength and stability performance requirements | |
| EN 1335-3:2009 | Office work chair test methods for structural and durability validation |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Standard for general purpose office chairs: strength, durability and stability | |
|---|---|---|
| ANSI/BIFMA X5.11-2015 | Standard for large occupant office chairs, supporting 180kg load rating |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden furniture, applicable to wood arm accent components | |
|---|---|---|
| GB/T 19001-2016 | Quality management system guideline for production and material traceability | |
| GB 28007-2011 | Strength and durability requirements for office seating products |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture, applicable to wood arm accent components; 2. GB/T 19001-2016: Quality management system guideline for production and material traceability; 3. GB 28007-2011: Strength and durability requirements for office seating products; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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