| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 660 x 680 x 1200 mm | |
|---|---|---|
| Seat width | 520 mm | |
| Seat depth | 540 mm | |
| Maximum seat height from floor | 570 mm | |
| Backrest total height | 750 mm | |
| Five-star base span diameter | 700 mm | |
| Caster diameter | 50 mm | |
| Retractable footrest extension length | 420 mm | |
| Armrest height from seat | 200 mm | |
| Seat foam thickness | 100 mm | |
| Backrest foam thickness | 80 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 | 28 kg | |
|---|---|---|
| Maximum recommended static load capacity | 181 kg | |
| Gas lift safety class | Class 4 | |
| Seat height adjustment stroke | 130 mm | |
| Recline angle from upright position | 155° | |
| Caster rolling durability cycles | 40000 cycles | |
| Seam pitch on upholstery | 30 mm | |
| Upholstery Martindale abrasion resistance | 50000 cycles | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back upholstery | 1.2mm thick brown top-grain leather | |
|---|---|---|
| Seat core padding | 45kg/m³ high-density cold-cure foam | |
| Backrest padding | 40kg/m³ high-resilience foam with 55% rebound rate | |
| Internal support frame | 1.5mm thick welded steel tube frame | |
| Five-star swivel base | 2mm thick polished chrome-plated steel | |
| Armrest construction | Leather-wrapped padding with dark polished accent trim | |
| Caster construction | Black polyurethane twin-wheel casters with chrome accent rings | |
| Recline mechanism | 3mm thick steel plate tilt mechanism with tension adjustment | |
| Footrest surface | Leather-wrapped padded top with chrome-plated steel support rails | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board | |
| Backrest Internal Frame Thickness | 14 mm bent plywood/composite reinforced frame | |
| Gas-lift Engineering Specification | Recommended Class 4; outer tube 50 mm; stroke 100 mm |
Adjustment / rotation / tilt / mobility / storage features
| 360-degree swivel rotation | Full rotation enabled by central gas lift swivel joint | |
|---|---|---|
| Pneumatic seat height adjustment | Class 4 gas lift adjusts seat height between 440mm and 570mm | |
| Recline function with tension control | Tilt mechanism adjusts recline resistance to user weight, locks at preferred angles | |
| Retractable pull-out footrest | Footrest extends 420mm from under seat for leg support during napping | |
| Fixed padded armrests | Ergonomically contoured fixed armrests provide stable upper body support | |
| Contoured lumbar support | Integrated curved lumbar zone maintains neutral spine alignment during seated work | |
| Smooth rolling mobility | Twin-wheel casters roll safely on hard floors and low-pile carpet | |
| Integrated headrest support | Segmented padded headrest zone supports neck during upright and reclined positions | |
| 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 | Formal leather finish suits manager and director workspaces for professional seating | |
|---|---|---|
| Home office study | Reclining footrest supports long work sessions and midday rest in residential workspaces | |
| Conference meeting rooms | Premium brown finish matches upscale meeting room decor for guest executive seating | |
| High-duty daily use | Heavy-duty base and recline mechanism suit 8+ hours of daily seated work | |
| Commercial reception areas | Polished chrome and leather finish creates a high-end impression for visitor seating | |
| 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 1335-1:2000 | European standard for office chair dimensional safety and functional requirements | |
|---|---|---|
| EN 1335-2:2009 | European standard for office chair mechanical strength and stability performance | |
| EN 1021-1:2014 | European standard for upholstered furniture cigarette ignition resistance |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | North American standard for office chair safety, durability and structural performance |
|---|
Standards applicable to China-market projects
| GB/T 10357.3-2013 | Furniture mechanical performance test standard for chair strength and durability | |
|---|---|---|
| GB 18584-2001 | Standard for formaldehyde and heavy metal limits in wooden/furniture materials |
This product must meet the following technical requirements: 1. GB/T 10357.3-2013: Furniture mechanical performance test standard for chair strength and durability; 2. GB 18584-2001: Standard for formaldehyde and heavy metal limits in wooden/furniture materials; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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