| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions (W×D×H) | 740 × 720 × 1250 mm | |
|---|---|---|
| Seat width | 550 mm | |
| Seat depth | 550 mm | |
| Seat height (floor to top of seat, lowest position) | 420 mm | |
| Seat height (floor to top of seat, highest position) | 520 mm | |
| Backrest height | 800 mm | |
| Backrest width | 520 mm | |
| Armrest height (floor to top of armrest) | 700 mm | |
| Five-star base diameter | 700 mm | |
| Caster diameter | 55 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 maximum user weight | 160 kg | |
|---|---|---|
| Five-star base static load capacity | 1200 kg | |
| Seat foam density | 35 kg/m³ | |
| Backrest foam density | 30 kg/m³ | |
| Foam resilience rate | 40% | |
| Foam compression set | 6% | |
| Caster rolling abrasion durability | 98000 cycles | |
| Backrest fatigue test load | 45 kg over 120000 cycles | |
| Net weight (chair only) | 30 kg | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and backrest contact surface upholstery | 1.5mm thick PU leather (leatherette) | |
|---|---|---|
| Backrest side and lower outer panel | Light blue-gray rigid upholstered panel | |
| Seat cushion core padding | High-resilience polyurethane foam, density 35kg/m³ | |
| Backrest core padding | High-resilience polyurethane foam, density 30kg/m³ | |
| Internal seat support panel | 12mm thick E1 grade bent plywood | |
| Five-star base | Polished die-cast aluminum alloy, wall thickness 2.5mm | |
| Gas lift cylinder | Steel pneumatic lift, outer tube diameter 50mm, stroke 83mm | |
| Tilt chassis | 2.5mm thick stamped steel plate with spring tension adjustment | |
| Armrests | Integrated padded armrests with steel internal support, covered in matching upholstery | |
| Casters | PU-coated dual-wheel swivel casters with PA inner hub | |
| Seam stitching | Reinforced bonded nylon thread, stitch pitch 8mm | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board |
Adjustment / rotation / tilt / mobility / storage features
| Seat height adjustment | Pneumatic gas lift provides 100mm vertical travel, adjustable via side lever under seat to match user leg length | |
|---|---|---|
| 360-degree swivel rotation | Full rotation around central gas lift axis for easy access to surrounding workspace without moving the base | |
| Backrest tilt function | Synchronized spring tilt with adjustable tension control, allowing up to 25 degrees of recline from upright position | |
| Tilt position locking | Multi-position lock to secure backrest at preferred recline angle for task work or relaxed seating | |
| Smooth rolling mobility | Dual-wheel casters allow low-noise movement on hard floors and low-pile carpet without surface scratching | |
| Fixed integrated arm support | Padded armrests positioned at 240mm above seat surface to support forearms during typing and desk work | |
| Ergonomic contoured support | Tall contoured backrest provides full upper back and shoulder support for extended seated work sessions | |
| 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
| Carton dimensions (L×W×H) | 950 × 750 × 550 mm | |
|---|---|---|
| Gross weight per carton | 30 kg | |
| Carton volume (CBM) | 0.392 CBM | |
| Required assembly time | 50 minutes | |
| 20ft GP container loading quantity | 80 units | |
| 40ft HQ container loading quantity | 204 units | |
| 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 |
Recommended spaces / users / usage modes
| Executive private office | Suited for manager, director or CEO private offices, providing professional aesthetic and full back support for 8+ hour daily work use | |
|---|---|---|
| Corporate conference rooms | Appropriate for high-end boardroom and meeting spaces, offering professional appearance and swivel/tilt function for meeting participants | |
| Home executive workspaces | Suitable for upscale home offices, combining comfortable padding and polished appearance for professional remote work environments | |
| Executive reception and visitor areas | Usable in high-end reception zones for important guest seating, conveying a professional corporate aesthetic | |
| Recommended desk pairing | Pairs with 760 mm high executive desks, with seat height range matching standard desk ergonomic clearance requirements | |
| Available color options | 2 standard colorways (all-black and two-tone dark/light gray) matching contemporary office design palettes | |
| 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: Dimensions – determination of dimensions, applicable for ergonomic dimensional verification for European market procurement | |
|---|---|---|
| EN 1335-2:2018 | Office furniture – Office work chairs – Part 2: Safety requirements, applicable for structural safety verification for European market procurement | |
| EN 1335-3:2009 | Office furniture – Office work chairs – Part 3: Test methods, applicable for durability and stability test procedures for compliance verification | |
| EN 1022:2018 | Furniture – Seating – Determination of stability, applicable for tipping resistance verification for all market procurement |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Office Chairs – Tests for general purpose office chairs, applicable for structural durability, load, cycle and safety performance requirements for North American market procurement | |
|---|---|---|
| ANSI/BIFMA X5.11-2015 | Office Chairs for Large Users, applicable if chair is specified for users over 136kg, requiring upgraded static and fatigue load testing |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden furniture, applicable to internal plywood seat shell quality and formaldehyde emission limits | |
|---|---|---|
| GB 18584-2001 | Indoor decorating and refurbishing materials – Limit of harmful substances of wood based furniture, applicable to formaldehyde and heavy metal content limits for internal components | |
| GB/T 16799-2008 | Polyurethane synthetic leather, applicable to quality, abrasion resistance and colorfastness requirements for PU upholstery |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture, applicable to internal plywood seat shell quality and formaldehyde emission limits; 2. GB 18584-2001: Indoor decorating and refurbishing materials – Limit of harmful substances of wood based furniture, applicable to formaldehyde and heavy metal content limits for internal components; 3. GB/T 16799-2008: Polyurethane synthetic leather, applicable to quality, abrasion resistance and colorfastness requirements for PU upholstery; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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