| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 630 x 650 x 1020 mm | |
|---|---|---|
| Seat height adjustment range | 520 mm | |
| Seat width | 490 mm | |
| Seat depth | 460 mm | |
| Backrest height (from seat surface) | 520 mm | |
| Integrated armrest height (from seat surface) | 210 mm | |
| Five-star base diameter | 680 mm | |
| Caster diameter | 50 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 | 18 kg | |
|---|---|---|
| Maximum user weight capacity | 150 kg | |
| Seat static load capacity | 1136 kg | |
| Backrest dynamic tilt cycle rating | 120000 cycles | |
| Caster rolling durability | 100000 cycles | |
| Gas lift cycle rating | 100000 cycles | |
| Net product weight | 18 kg | |
| Backrest tilt dynamic cycle durability | 120000 cycles | |
| Caster rolling cycle durability | 100000 cycles | |
| Gas lift height adjustment cycle life | 100000 cycles |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back support shell | 12mm thick steam-bent walnut veneer plywood, high-gloss clear lacquer finish | |
|---|---|---|
| Seat upholstery | 1.5mm thick full-grain tan top-grain leather over 50mm high-density foam | |
| Tilt adjustment mechanism | 3mm thick powder-coated steel multi-function tilt chassis | |
| Height adjustment gas lift | Class 3 chrome-plated steel gas lift, 50mm outer diameter, 100mm stroke | |
| Five-star base | Polished die-cast aluminum, 2.5mm wall thickness | |
| Casters | Black polyurethane twin-wheel casters with metal wheel bearings | |
| Edge finishing | Contrast light-colored stitching along leather seat perimeter, 8mm stitch pitch | |
| Seat upholstery facing | 1.5mm thick aniline-dyed tan top-grain cowhide leather, edge-welted construction | |
| Seat cushion padding | 50mm thick high-density polyurethane foam, density 45kg/m³, 40% rebound rate | |
| Tilt adjustment chassis | 3mm thick powder-coated cold-rolled steel multi-lock tilt mechanism | |
| Seam construction | Matching light-tan polyester bonded thread stitching along seat pad perimeter, 8mm stitch pitch | |
| Base leg end sockets | Pressed steel caster socket inserts, press-fit into aluminum base legs |
Adjustment / rotation / tilt / mobility / storage features
| Seat height adjustment | Pneumatic height adjustment via right-side lever, 100mm total travel between 420mm and 520mm seat height | |
|---|---|---|
| Backrest tilt function | 12 degree backward tilt with tension adjustment knob under seat, lockable in upright position | |
| 360-degree swivel rotation | Full 360 degree free rotation around central gas lift axis for flexible workspace access | |
| Smooth mobility | Five twin-wheel casters enable rolling movement on hard wood, tile and low-pile carpeted floors without floor scratching | |
| Integrated fixed arm support | Bentwood shell forms continuous integrated armrests that support forearms at fixed 210mm height above seat | |
| Tilt tension adjustment | Rotary tension knob under seat adjusts tilt resistance to match user body weight between 50kg and 150kg | |
| Floor mobility | Five evenly spaced twin-wheel casters enable omnidirectional rolling movement on hardwood, tile, vinyl and low-pile carpeted surfaces, PU tread eliminates floor scratching under 150kg load | |
| Stability performance | 680mm diameter five-star base provides 270mm leg overhang from center axis, resists tipping during 12 degree tilt and 50kg lateral arm load | |
| 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 | 680 x 660 x 590 mm | |
| Gross shipping weight | 22 kg | |
| Shipping volume per unit | 0.265 CBM | |
| Assembly time | 20 minutes | |
| 20ft GP container loading quantity | 108 units | |
| 40ft HQ container loading quantity | 266 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 office | Premium walnut and leather aesthetic suits director or manager private offices, matches walnut wood casegoods and formal office interiors | |
|---|---|---|
| Formal boardroom seating | Sleek fixed-profile design and durable construction is suitable for boardroom and high-level meeting spaces, provides consistent ergonomic support for 4 hour meetings without visual clutter from adjustment hardware | |
| Home office workspace | Refined mid-century modern design fits residential home offices for remote working professionals, complements wood residential furniture | |
| Boutique client meeting area | High-end finish creates professional welcoming impression for client-facing consultation rooms in design, legal or finance offices | |
| Co-working premium dedicated desk | Durable commercial construction supports daily heavy use in premium co-working dedicated desk zones | |
| Professional client consultation areas | High-end wood and leather finish creates a polished welcoming impression for client-facing spaces in law, finance, architecture and design firms, balances professionalism and design appeal | |
| Premium co-working dedicated desk zones | Commercial-grade mechanism and upholstery withstands daily heavy use in premium co-working dedicated desk zones, the classic finish maintains appearance with regular cleaning and turnover | |
| Hotel business center workstations | Low-maintenance leather and lacquer finish resists spills and wear from transient business center users, the swivel mobility supports flexible workstation use for short-duration work tasks |
EU Market Access Requirements* EN Standards
| EN 1335-1:2020 | Office furniture - Office work chairs - Part 1: Dimensions - safety requirements, applies to ergonomic dimension verification for user fit | |
|---|---|---|
| EN 1335-2:2018 | Office furniture - Office work chairs - Part 2: Safety requirements, applies to structural safety and stability testing | |
| EN 1335-3:2009 | Office furniture - Office work chairs - Part 3: Test methods, applies to standardized durability and load verification |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | American National Standard for Office Chairs - General purpose, applies to static load, durability, stability and cycle testing for commercial grade use | |
|---|---|---|
| Maximum rated static user weight capacity | 150 kg | |
| Seat vertical static load capacity | 1136 kg |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden furniture, applies to bentwood shell material, finish adhesion and formaldehyde emission limits | |
|---|---|---|
| GB 18584-2001 | Indoor decoration and refurbishing materials - limit of harmful substances in wood furniture, applies to formaldehyde emission limits for veneer and lacquer components | |
| GB/T 38610-2020 | Office furniture - Office chairs, applies to dimensional safety, structural strength and stability requirements for commercial office seating, procurement acceptance reference |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture, applies to bentwood shell material, finish adhesion and formaldehyde emission limits; 2. GB 18584-2001: Indoor decoration and refurbishing materials - limit of harmful substances in wood furniture, applies to formaldehyde emission limits for veneer and lacquer components; 3. GB/T 38610-2020: Office furniture - Office chairs, applies to dimensional safety, structural strength and stability requirements for commercial office seating, procurement acceptance reference; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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