| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 680 x 720 x 1200 mm | |
|---|---|---|
| Seat height adjustment range | 520 mm | |
| Seat width | 520 mm | |
| Seat depth | 500 mm | |
| Seat cushion thickness | 80 mm | |
| Backrest height | 780 mm | |
| Backrest width | 500 mm | |
| Integrated headrest dimensions | 320 x 180 x 60 mm | |
| Armrest height from seat | 220 mm | |
| Five-star base radius | 350 mm | |
| Caster diameter | 50 mm | |
| Knee clearance under seat | 150 mm at minimum seat height | |
| Seat usable width | 520 mm | |
| Backrest total height (seat surface to top) | 780 mm | |
| Backrest lumbar region width | 480 mm | |
| Fixed armrest height above seat surface | 230 mm |
Net weight / load capacity / users / durability
| Net weight range | 26 kg | |
|---|---|---|
| Recommended maximum user weight | 136 kg (300 lbs) | |
| Seat static load capacity | 1100 N | |
| Caster rolling durability | 100,000 rolling cycles | |
| Tilt mechanism cyclic durability | 60,000 tilt cycles | |
| Seat foam density | 55 kg/m³ (seat), 40 kg/m³ (back) | |
| Foam rebound rate | 50% | |
| Seat molded foam density | 55 kg/m³ (seat cushion), 40 kg/m³ (backrest/headrest) | |
| Upholstery abrasion resistance | 100000Martindale cycles | |
| Seat cushion thickness (compressed/loaded) | 65mm core, 80mm uncompressed |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back upholstery | Two-tone taupe polyurethane (PU) leather | |
|---|---|---|
| Seat cushion core | Molded high-resilience polyurethane foam | |
| Backrest core | Shaped polyurethane foam with integrated lumbar padding | |
| Fixed armrests | Padded urethane foam wrapped in matching upholstery, with rigid inner support | |
| Five-star base | Polished die-cast aluminum | |
| Gas lift | Chrome-plated steel Class 3 pneumatic cylinder | |
| Tilt mechanism | Black powder-coated steel multi-lock synchro mechanism | |
| Casters | Black polyurethane (PU) twin-wheel casters with hard floor grip | |
| Upholstery stitching | Visible precision matching-thread stitching with 8mm seam pitch | |
| Inner back frame | 12mm thick plywood or steel tube internal frame | |
| Seat/back/headrest upholstery | Two-tone warm taupe contract-grade polyurethane (PU) leather, 1.2 mm thick | |
| Backrest/headrest core | Shaped cut polyurethane foam with integrated raised lumbar padding, density 40 kg/m³ |
Adjustment / rotation / tilt / mobility / storage features
| Pneumatic seat height adjustment | 100mm stroke via right-side lever, adjusts seat height between 520 mm to fit 190 cm user heights | |
|---|---|---|
| Synchro-tilt recline | Backrest reclines up to 15° in synchronized ratio with seat tilt (1° seat tilt per 4° back tilt) to maintain ergonomic posture | |
| Tilt tension adjustment | Tension knob under seat adjusts recline resistance to match user weight between 140 kg | |
| Tilt position lock | Mechanism locks in upright working position and up to 3 intermediate recline positions for task or relaxed seating | |
| Fixed padded armrest support | Ergonomically curved fixed armrests support forearms at 90° elbow angle during typing, no height or width adjustment | |
| Integrated head support | Built-in contoured padded headrest supports neck and upper back during upright working and reclined resting positions | |
| Smooth rolling mobility | Five PU casters roll freely on hard flooring and low-pile carpet, with hard floor-safe non-marking tread | |
| Integrated lumbar support | Contoured backrest shape provides passive mid-back lumbar support at 220 mm above seat surface | |
| Integrated head and neck support | Built-in contoured padded headrest positioned to support the cervical spine and base of the skull during both upright working and full recline resting positions | |
| 360° swivel mobility | Full 360-degree horizontal swivel rotation around central gas lift axis, with no rotation lock, to allow easy access to surrounding work surfaces | |
| Passive lumbar support | Contoured raised backrest shape provides fixed passive mid-back lumbar support positioned 220 mm above seat surface, aligned to natural lumbar spine curve | |
| Recline Angle / Lock Reference | 125° with 3suggested lock positions |
Verified carton / gross weight / assembly / loading data
| Package quantity | 1 carton per fully knocked-down chair | |
|---|---|---|
| Reference carton dimensions | 750 x 650 x 580 mm | |
| Reference gross weight per carton | 29 kg | |
| Reference CBM per unit | 0.28 CBM | |
| Assembly time | 25 minutes per unit with basic included tools | |
| 20ft GP container loading quantity | 130units | |
| 40ft GP container loading quantity | 270units | |
| 40ft HQ container loading quantity | 310units | |
| Packaging materials | 5-layer corrugated carton with foam corner protection, poly bag cover, and separate hardware kit | |
| Reference carton outer dimensions | 780 x 660 x 590 mm |
Recommended spaces / users / usage modes
| Executive private office | High-back supportive design for senior management and executive workstations, providing all-day comfort for long working hours | |
|---|---|---|
| Boardroom and conference room leadership seating | Professional neutral taupe finish and polished base complement formal boardroom decor for permanent seating at conference tables and meeting room leadership positions | |
| Senior management open-plan workstations | Swivel and rolling function allows easy movement between desk tasks and adjacent collaboration areas | |
| Premium home office setup | Matte leather-like finish and minimalist contoured design suit dedicated home offices for remote executives, consultants and senior professionals, without the overly industrial look of task chairs | |
| VIP meeting and reception areas | Comfortable recline and supportive padding make it suitable for extended visitor meetings and guest seating | |
| Recommended pairing | Pairs with 760 mm height executive desks, conference tables and height-adjustable desks for ergonomic working posture | |
| Senior staff open-plan workstations | 360° swivel and smooth rolling caster function allows easy movement between desk tasks, adjacent collaboration zones and side filing cabinets without standing | |
| VIP reception and guest meeting areas | Thick padded cushioning and gentle recline function make it suitable for extended visitor meetings and guest seating in executive reception zones |
EU Market Access Requirements* EN Standards
| EN 1335-2 | 2009 Office furniture - Office work chairs - Part 2: Safety requirements: recommended CE market compliance reference for structural and mechanical safety | |
|---|---|---|
| EN 1022 | 2005 Domestic furniture - Seating - Determination of stability: recommended validation reference for chair stability during recline and swivel use |
US and Canada office-furniture standards
| BIFMA X5.1-2017 (recommended, not certified) | Reference standard for office chair structural durability, static load, cyclic testing and safety performance for commercial procurement; requires third-party test report confirmation from supplier |
|---|
Standards applicable to China-market projects
| GB/T 3324-2017 General technical requirements for wooden furniture | applicable for structural strength and finish durability validation of wood-framed chair variants | |
|---|---|---|
| GB/T 26706-2011 Upholstered furniture - Office chairs | applicable for seating stability, load capacity and adjustment mechanism performance acceptance | |
| GB 20210-2006 Safety of upholstered furniture - Fire resistance of upholstered seating | applicable for fire performance validation of foam and upholstery materials |
This product must meet the following technical requirements: 1. GB/T 3324-2017 General technical requirements for wooden furniture: applicable for structural strength and finish durability validation of wood-framed chair variants; 2. GB/T 26706-2011 Upholstered furniture - Office chairs: applicable for seating stability, load capacity and adjustment mechanism performance acceptance; 3. GB 20210-2006 Safety of upholstered furniture - Fire resistance of upholstered seating: applicable for fire performance validation of foam and upholstery materials; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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