| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 680 x 700 x 1220 mm | |
|---|---|---|
| Seat height adjustment range | 540 mm | |
| Seat width | 520 mm | |
| Seat depth | 500 mm | |
| Backrest height | 780 mm | |
| Fixed armrest height above seat | 220 mm | |
| Five-star base diameter | 700 mm | |
| Caster wheel diameter | 60 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 chair weight | 25 kg | |
|---|---|---|
| Maximum recommended user weight | 150 kg | |
| Backrest static load capacity | 68 kg | |
| Caster rolling durability | 100000 cycles | |
| Gas lift cycle durability | 120000 cycles | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ | |
| Upholstery Thickness / Abrasion Reference | 1.4 mm / 50000 cycles | |
| Five-star Base Static Load Reference | Acceptance target ≥120 kg; chair reference load 150 kg | |
| Gas-lift Cycling Reference | Acceptance target 100000 cycles |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back upholstery | Smooth dark brown faux leather (PU) | |
|---|---|---|
| Seat core padding | High-density molded polyurethane foam, density 45 kg/m³ | |
| Backrest core padding | Medium-density polyurethane foam, density 35 kg/m³ | |
| Five-star base | Polished chrome-plated steel, tube thickness 2.0 mm | |
| Height adjustment gas lift | Chrome-plated steel Class 3 gas lift, outer diameter 50 mm, stroke 100 mm | |
| Tilt mechanism | 2.5 mm thick pressed steel multi-lock synchro-tilt mechanism | |
| Armrests | PU-padded fixed armrests with rigid internal support | |
| Caster wheels | Black nylon dual-wheel hard-floor casters with rubber tread | |
| Internal frame | 1.5 mm thick welded steel tubular inner frame for seat and back | |
| Upholstery seam stitch pitch | 8 stitches per 30mm | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board | |
| Backrest Internal Frame Thickness | 14 mm bent plywood/composite reinforced frame |
Adjustment / rotation / tilt / mobility / storage features
| Seat height adjustment | Pneumatic height adjustment via right-side lever, 100 mm vertical travel, lockable at any height within range | |
|---|---|---|
| Swivel function | 360-degree continuous rotation around central gas lift column, no rotational lock | |
| Tilt function | Synchro-tilt with 12-degree backward recline, lockable in upright and 3 intermediate recline positions via tilt tension adjustment knob | |
| Mobility function | Five dual-wheel casters enable omnidirectional rolling on hard floors and low-pile carpet | |
| Integrated head support | Tall backrest includes contoured built-in headrest section for upper neck and head support without separate adjustment | |
| Fixed arm support | Padded fixed armrests provide consistent forearm support at a fixed height relative to the seat, no height or width adjustment | |
| 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 | |
|---|---|---|
| Shipping carton dimensions | 850 x 650 x 400 mm | |
| Gross shipping weight | 29 kg | |
| Shipping volume per unit | 0.221 CBM | |
| Assembly time per unit | 20 minutes | |
| 40HQ container loading quantity | 300 units | |
| Packaging materials | 5-layer corrugated carton, EPS foam corner protection, PE bag wrap, assembly hardware kit, paper instruction manual | |
| 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 | Suitable for C-suite and manager private offices, with formal padded high-back design and professional dark brown finish for executive workspaces | |
|---|---|---|
| Conference room seating | Appropriate for high-end boardroom and conference room deployment, with padded support for extended meeting sessions | |
| Home office premium workspace | Suitable for residential home offices used by professionals seeking formal, supportive executive seating for daily telework | |
| Commercial reception areas | Can be deployed in VIP reception and client meeting areas, with polished chrome base and tailored upholstery for a professional client-facing appearance | |
| 8-hour daily work use | Designed for continuous commercial office use, with ergonomic padding and durable construction to support full workday seated tasks | |
| Hard floor and low-pile carpet environments | Compatible with standard office hard flooring and low-pile commercial carpet via standard dual-wheel casters | |
| 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 standard for office furniture - office chairs: dimensions, to be used as reference for ergonomic dimension verification during procurement | |
|---|---|---|
| EN 1335-2:2018 | Applicable European standard for office furniture - office chairs: safety requirements, to be used as reference for structural safety acceptance | |
| EN 1335-3:2009 | Applicable European standard for office furniture - office chairs: test methods, to be referenced for third-party inspection protocols |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applicable North American standard for general-purpose office chairs, to be used as reference for load rating, durability and stability requirements for commercial deployment | |
|---|---|---|
| Seat static load capacity | Recommended references: ANSI/BIFMA X5.1 | |
| Base static load rating | 1136 kg |
Standards applicable to China-market projects
| GB/T 3324-2017 | Applicable Chinese general technical standard for metal furniture, to be used for acceptance of chrome-plated steel base and metal frame finish quality |
|---|
This product must meet the following technical requirements: 1. GB/T 3324-2017: Applicable Chinese general technical standard for metal furniture, to be used for acceptance of chrome-plated steel base and metal frame finish quality; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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