| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 770 x 680 x 1340 mm | |
|---|---|---|
| Seat width | 550 mm | |
| Seat depth | 540 mm | |
| Seat height range (gas lift adjusted) | 540 mm | |
| Backrest height | 750 mm | |
| Backrest width | 550 mm | |
| Fixed armrest height from floor | 730 mm | |
| Five-star base span diameter | 700 mm | |
| Caster wheel diameter | 60 mm | |
| Seat foam thickness | 120 mm | |
| Backrest foam thickness | 80 mm | |
| Solid wood frame arm thickness | 40 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 | 26 kg | |
|---|---|---|
| Recommended static weight capacity | 227 kg | |
| Recommended user weight for daily use | 159 kg | |
| High-density foam density | 45 kg/m³ | |
| Foam rebound rate | 60% | |
| Leather upholstery abrasion resistance | 50000 double rubs | |
| Caster rolling durability cycle count | 100000 cycles | |
| Seam stitch pitch | 8 mm | |
| Warranty period for frame and mechanisms | 5 years | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back upholstery | Vintage brown top-grain cowhide leather with contrast stitching | |
|---|---|---|
| Seat cushion core | 45 kg/m³ high-density polyurethane foam | |
| Backrest cushion core | Contoured high-density foam with integrated lumbar padding | |
| Armrests and support frame | Carved solid hardwood with polished glossy wood finish | |
| Five-star swivel base | Solid polished hardwood with reinforced metal center hub | |
| Caster wheels | Black polyurethane twin-wheel casters with metal stems | |
| Gas lift cylinder | Class 3 chrome-plated steel pneumatic cylinder | |
| Tilt chassis mechanism | 3 mm thick stamped steel plate with tension adjustment | |
| Internal support frame | 15 mm thick plywood core under upholstered panels | |
| Massage component housing | Integrated wood side panel with recessed massage control dial | |
| 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 360° rotation via central swivel joint between gas lift and base | |
|---|---|---|
| Pneumatic seat height adjustment | 90 mm height adjustment stroke via side-mounted lever | |
| Tilt recline function | 15° backward recline with adjustable tension control | |
| Tilt position lock | Lock in upright position or full recline position | |
| Smooth rolling mobility | Dual-wheel casters suitable for hard floors and low-pile carpet | |
| Integrated lumbar massage function | Back-focused vibration massage controlled via side dial | |
| Fixed ergonomic arm support | Curved wood armrests positioned for seated elbow support | |
| Contoured back support | Segmented padded backrest with built-in headrest and lumbar curve | |
| 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 | Fits traditional executive office decor for manager/CEO desks, matching wood office furniture | |
|---|---|---|
| Home office study | Works in classic home office studies with traditional wood desk configurations | |
| Boardroom seating | Suitable for executive boardroom positions requiring premium formal seating | |
| Long-duration desk work | Supports 8+ hours of seated work with padded cushioning and tilt function | |
| Traditional themed commercial spaces | Ideal for law firms, financial offices or traditional hospitality reception areas | |
| 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 | Office furniture - Office work chairs - Part 1: Dimensional safety requirements | |
|---|---|---|
| EN 1335-2:2018 | Office furniture - Office work chairs - Part 2: Safety strength and durability requirements | |
| EN 1335-3:2009 | Office furniture - Office work chairs - Part 3: Test methods |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Standard for office chairs: General purpose, including strength, durability and stability | |
|---|---|---|
| ANSI/BIFMA X5.11-2015 | Standard for large occupant office chairs for users up to 159 kg |
Standards applicable to China-market projects
| GB/T 3326-2016 | Furniture: Tables and chairs, dimensional measurement and size specification for office seating |
|---|
This product must meet the following technical requirements: 1. GB/T 3326-2016: Furniture: Tables and chairs, dimensional measurement and size specification for office seating; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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