| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions (max adjustable height) | 730 x 720 x 1280 mm | |
|---|---|---|
| Seat width | 610 mm | |
| Seat depth | 530 mm | |
| Seat height (gas lift adjusted, highest position) | 580 mm | |
| Backrest height | 700 mm | |
| Backrest width | 560 mm | |
| Armrest height above seat | 230 mm | |
| Five-star wood base diameter | 686 mm | |
| Caster wheel diameter | 60 mm | |
| Seat cushion thickness | 120 mm | |
| Backrest lumbar padding thickness | 80 mm | |
| Knee clearance under seat (lowest position) | 200 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
| Net weight | 27 kg | |
|---|---|---|
| Recommended static load capacity | 227 kg | |
| Seat foam density | 45 kg/m³ | |
| Foam rebound rate | 60% | |
| Gas lift cycle durability | 120000 cycles | |
| Leather upholstery abrasion resistance | 50000 Martindale rubs | |
| Seam stitch pitch | 8 stitches per 30 mm | |
| Recommended user weight limit | 150 kg | |
| 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 | Top-grain brown leather | |
|---|---|---|
| Internal cushion padding | High-density molded polyurethane foam | |
| Backrest internal frame | 15mm thick plywood support | |
| Armrests and side trim | Polished solid mahogany-finish hardwood | |
| Five-star swivel base | Lacquered solid hardwood five-prong structure | |
| Height adjustment gas lift | Steel Class 4 pneumatic cylinder | |
| Tilt/recline mechanism | 3mm thick steel plate mechanism with tension adjust | |
| Caster wheels | Black nylon hooded twin-wheel casters | |
| Metal hardware | Zinc-plated steel fasteners and tilt linkage | |
| Backrest support springs | Sinuous steel spring suspension | |
| 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
| 360-degree swivel rotation | Full rotation enabled by central swivel joint between seat and base | |
|---|---|---|
| Pneumatic seat height adjustment | 70mm vertical travel via right-side under-seat lever | |
| Backrest recline function | 15-degree maximum recline angle with upright lock position | |
| Tilt tension adjustment | Variable tension dial to match user body weight for recline resistance | |
| Smooth rolling mobility | Dual-wheel casters roll on hard floors and low-pile carpet | |
| Integrated lumbar support | Contoured segmented padding aligns with natural lower back curve | |
| Fixed padded arm support | Curved wood armrests provide stable forearm support at desk height | |
| Extended seat cushion support | Thick extended front seat edge reduces thigh pressure | |
| 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 | Formal high-back support for CEO/manager workstations in private office spaces | |
|---|---|---|
| Boardroom meeting spaces | Formal seating for boardroom tables requiring professional traditional furnishing | |
| Home office for senior professionals | Comfortable long-duration seating for dedicated home office workspaces | |
| Government/official reception offices | Formal appropriate seating for official meeting and reception spaces | |
| Desk work for 4-8 hour daily use | Thick padding and ergonomic support support full workday sitting | |
| Premium client meeting areas | Impressive professional seating for high-value client meeting rooms | |
| 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
| Office chair safety recommendation | EN 1335:2020 | |
|---|---|---|
| Upholstery fabric durability recommendation | EN 14465:2006 | |
| Office chair stability recommendation | EN 1022:2018 | |
| Formaldehyde emission recommendation | EN 16516:2017 |
US and Canada office-furniture standards
| Office chair durability recommendation | ANSI/BIFMA X2017 | |
|---|---|---|
| Gas lift safety recommendation | ANSI/BIFMA X5.1 Clause 8 | |
| Caster performance recommendation | ANSI/BIFMA X5.1 Clause 13 | |
| Base load recommendation | ANSI/BIFMA X5.1 Clause 12 | |
| Caster rolling durability | 100000 cycles |
Standards applicable to China-market projects
| Office chair structural safety recommendation | GB/T 10357.3 | |
|---|---|---|
| Upholstery leather quality recommendation | GB/T 16799 | |
| Wood furniture coating safety recommendation | GB 18581 | |
| Hardware durability recommendation | GB/T 3326 |
This product must meet the following technical requirements: 1. Office chair structural safety recommendation: GB/T 10357.3; 2. Upholstery leather quality recommendation: GB/T 16799; 3. Wood furniture coating safety recommendation: GB 18581; 4. Hardware durability recommendation: GB/T 3326; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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