| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 680 x 700 x 1180 mm | |
|---|---|---|
| Seat width | 520 mm | |
| Seat depth | 500 mm | |
| Seat height range | 540 mm | |
| Backrest height | 530 mm | |
| Headrest dimensions | 500 x 200 mm | |
| Armrest height | 220 mm | |
| Five-star base diameter | 680 mm | |
| Caster diameter | 60 mm | |
| Seat thickness | 80 mm | |
| Backrest padding thickness | 60 mm | |
| Bentwood panel thickness | 15 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 | 22 kg | |
|---|---|---|
| Maximum static load capacity | 150 kg | |
| Gas lift stroke | 90 mm | |
| Tilt range | 15 degrees | |
| Caster rolling durability | 40000 cycles | |
| Seat foam density | 45 kg/m³ | |
| Back foam density | 35 kg/m³ | |
| Recommended user height | 185 cm | |
| Standard warranty | 3 years | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back upholstery | Black faux leather (PU leather) | |
|---|---|---|
| Upholstery abrasion resistance | 50000 Martindale cycles | |
| Seat cushion core | High-density polyurethane foam | |
| Backrest and headrest cushion core | Medium-density polyurethane foam | |
| Structural side shells and arm supports | Bent plywood with walnut wood veneer finish | |
| Armrest top pads | Black padded faux leather matching seat upholstery | |
| Arm support brackets | Polished chrome-plated steel | |
| Five-star base | Polished chrome-plated steel tube | |
| Gas lift cylinder | Chrome-plated steel, Class 3 | |
| Tilt mechanism housing | Matte black powder-coated steel | |
| Adjustment levers | Glass-filled nylon | |
| Casters | Black nylon with PU tread, twin-wheel design |
Adjustment / rotation / tilt / mobility / storage features
| 360-degree swivel rotation | Full 360° horizontal rotation enabled by central gas lift bearing, allows easy access to surrounding desk areas without standing | |
|---|---|---|
| Pneumatic seat height adjustment | 90mm total height adjustment controlled by right-side lever, adjusts seat height from 450mm to 540mm to suit different desk heights and user leg lengths | |
| Backward tilt with tension control | 15° maximum recline with adjustable resistance via front tension knob, allows users to lean back comfortably while maintaining support | |
| Tilt lock function | Locks backrest in fully upright position via left-side lever for focused task work, unlocks for free recline during casual use | |
| Dual-wheel caster mobility | 60mm twin-wheel casters roll smoothly on hard floors and low-pile carpet, non-marking design prevents floor scuffing | |
| Integrated headrest support | Fixed, cushioned headrest aligned to support upper neck and head when reclining, attached directly to upper back shell | |
| Fixed padded armrests | 220mm height above seat surface, padded arm rests support forearms to reduce shoulder strain during typing and meetings | |
| Tufted upholstery retention | Button tufting on seat and back prevents upholstery slippage over time and maintains structured, classic aesthetic | |
| Synchronized weight compensation | Tilt mechanism adjusts initial resistance to match user weight for balanced recline feel across the 150kg rated load range | |
| Recline Angle / Lock Reference | 125° with 3 suggested 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
| Number of shipping cartons | 1 carton | |
|---|---|---|
| Shipping carton dimensions | 780 x 660 x 580 mm | |
| Gross shipping weight | 26 kg | |
| Shipping volume per unit | 0.30 CBM | |
| Assembly time | 25 minutes | |
| 20ft container loading quantity | 88 units | |
| 40ft HQ container loading quantity | 220 units | |
| Reference Package Count | 1 set / 2 cartons | |
| Reference Assembly Time | 40 minutes per set | |
| Reference Carton Dimensions | 850× 420× 720 mm |
Recommended spaces / users / usage modes
| Executive private offices | Classic mid-century aesthetic and robust construction suitable for manager and C-suite private workspaces, pairs with executive desks for a professional appearance | |
|---|---|---|
| Home office workspaces | Walnut wood and black leather finish complements residential and home office decor, provides ergonomic support for long work from home sessions | |
| Meeting and conference rooms | Polished chrome and walnut aesthetic creates a premium look for boardrooms and client meeting spaces, swivel function supports collaborative discussion | |
| Hotel business centers | Durable commercial-grade construction withstands high-frequency public use, premium appearance aligns with upscale hospitality environments | |
| Coworking dedicated offices | Stable, comfortable seating for permanent dedicated coworking desks, adjustable features suit a wide range of user body types | |
| Consulting and client advisory spaces | Professional, timeless design creates a welcoming, high-trust environment for client meetings and advisory sessions | |
| 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 | Applicable European office chair standard, specifies dimensional safety and performance requirements for office work seating | |
|---|---|---|
| EN 1335-2:2018 | Applicable European safety standard for office chairs, defines structural strength, stability, and durability test requirements | |
| EN 1022:2019 | Applicable European stability standard for seating, verifies resistance to tipping during normal use and recline |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applicable North American commercial office chair standard, defines performance and test requirements for general-purpose office seating including static load, durability, and stability |
|---|
Standards applicable to China-market projects
| GB 18584-2001 | Applicable Chinese standard for limit of harmful substances in wood furniture, sets formaldehyde emission limits for bent plywood components | |
|---|---|---|
| GB/T 10357.3-2013 | Applicable test standard for chair strength and durability, defines static load, impact, and fatigue test methods for seating components |
This product must meet the following technical requirements: 1. GB 18584-2001: Applicable Chinese standard for limit of harmful substances in wood furniture, sets formaldehyde emission limits for bent plywood components; 2. GB/T 10357.3-2013: Applicable test standard for chair strength and durability, defines static load, impact, and fatigue test methods for seating components; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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