| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall assembled dimensions | 770 x 889 x 1340 mm | |
|---|---|---|
| Seat width | 520 mm | |
| Seat depth | 520 mm | |
| Seat height adjustment range | 635 mm | |
| Backrest height | 670 mm | |
| Backrest width | 520 mm | |
| Armrest height from floor | 775 mm | |
| 5-star base radial diameter | 700 mm | |
| Caster diameter | 60 mm | |
| Seat cushion thickness | 100 mm | |
| Backrest padding thickness | 80 mm | |
| Finished Seat Cushion Thickness | 90 mm | |
| Lumbar Support Zone Height | 240 mm | |
| Clear Width Between Armrests | 540 mm |
Net weight / load capacity / users / durability
| Net weight | 46 kg | |
|---|---|---|
| Recommended static load capacity | 182 kg | |
| Seat foam density | 45 kg/m³ | |
| Foam rebound rate | 45% | |
| Upholstery abrasion resistance | 50000 Martindale cycles | |
| Seam stitch pitch | 8 mm | |
| Caster rolling durability | 100000 cycles | |
| Gas lift static load rating | 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 | 1.2mm thick brown top-grain leather with clear topcoat | |
|---|---|---|
| Cushion filling | High-density polyurethane foam with lumbar contour support | |
| Armrests | Polished solid hardwood with glossy lacquer finish, curved ergonomic profile | |
| 5-star base | Solid hardwood construction with reinforced steel mounting insert | |
| Internal support frame | 15mm thick plywood inner frame with 2mm steel reinforcement plate | |
| Casters | Dual-wheel black polyurethane casters, floor-friendly soft tread | |
| Pneumatic gas lift | Class 3 chrome-plated steel gas lift, 100mm stroke | |
| Recline mechanism | 3mm thick steel multi-position lock chassis with tilt tension adjustment | |
| Stitching | High-tensile bonded polyester contrast stitching, reinforced stress points | |
| 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
| 360-degree swivel rotation | Full rotation enabled by central swivel joint between seat and base | |
|---|---|---|
| Pneumatic seat height adjustment | 100mm vertical travel controlled by side-mounted lever, locks at any height | |
| Backrest recline function | 135-degree maximum recline angle with 5-position lock, adjustable tilt tension | |
| Mobility function | Five dual-wheel casters enable smooth rolling on hard floors and low-pile carpet | |
| Ergonomic support | Contoured built-in lumbar support aligns with natural lower back curve | |
| Armrest support | Fixed curved wood armrests positioned at desk-appropriate height for forearm support | |
| Tilt tension control | User-adjustable knob modulates recline resistance to match user weight | |
| 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 | High-back support and traditional styling suit manager and director workspaces | |
|---|---|---|
| Home office study | Classic wood and leather aesthetic complements traditional home interior design | |
| Conference room seating | Rolling swivel function supports easy movement during long meetings | |
| All-day seated work | Padded cushioning and lumbar support support 8+ hours of daily office use | |
| 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 | Applies to office chair dimensional, safety and strength requirements for task seating | |
|---|---|---|
| EN 1335-2:2018 | Applies to mechanical safety test methods for swivel office chairs | |
| EN 1335-3:2020 | Applies to structural durability test requirements for office seating | |
| EN 1022:2019 | Applies to stability testing for domestic and contract seating furniture |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applies to general-purpose office chair safety, strength and durability benchmarks | |
|---|---|---|
| ANSI/BIFMA X5.11-2015 | Applies to heavy-duty office chair performance for users up to 159kg |
Standards applicable to China-market projects
| GB/T 3326-2016 | Applies to office chair dimensional stability and size tolerance requirements | |
|---|---|---|
| GB/T 3324-2017 | Applies to general technical requirements for wooden furniture components | |
| GB/T 16799-2008 | Applies to performance requirements for leather used in furniture upholstery | |
| GB 28007-2011 | Applies to strength and durability requirements for office swivel chairs |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applies to office chair dimensional stability and size tolerance requirements; 2. GB/T 3324-2017: Applies to general technical requirements for wooden furniture components; 3. GB/T 16799-2008: Applies to performance requirements for leather used in furniture upholstery; 4. GB 28007-2011: Applies to strength and durability requirements for office swivel chairs; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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