| Submitted | Field | Original | 修改后参数 | Note / Status |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions (W×D×H) | 680 × 700 × 1220mm | |
|---|---|---|
| Seat height adjustment range | 540mm | |
| Seat cushion dimensions (W×D) | 520 × 500 mm | |
| Seat cushion foam thickness | 80 mm | |
| Backrest total height (from seat pan to top of headrest) | 780 mm | |
| Integrated headrest dimensions (W×H) | 320 × 180 mm | |
| Fixed armrest height above seat pan | 220 mm | |
| Armrest top pad dimensions (L×W) | 260 × 70 mm | |
| Five-star base diameter | 700 mm | |
| Caster diameter | 60 mm | |
| Backrest width (at lumbar zone) | 510 mm | |
| Five-star base outer diameter | 700 mm | |
| Knee clearance under seat (at lowest height) | 170 mm | |
| Finished Seat Cushion Thickness | 90mm | |
| Backrest Padding Thickness | 70mm | |
| Lumbar Support Zone Height | 240mm |
Net weight / load capacity / users / durability
| Product net weight range | 25kg | |
|---|---|---|
| Recommended maximum user weight | 150 kg | |
| Seat static load capacity | 136 kg | |
| Backrest recline angle range | 95° (upright) to 125° (reclined) | |
| Caster rolling durability | ≥40,000 rolling cycles | |
| Recommended daily usage duration | 8 hours | |
| Seat foam density | 45 kg/m³ (cushion), 35 kg/m³ (backrest) | |
| Seat cushion foam indentation load deflection (ILD) | 55 (cushion), 45 (backrest) | |
| Seam tensile strength | ≥150 N | |
| Seat Foam Density / Rebound Reference | 45kg/m³ / 65% |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and backrest upholstery | 1.2mm thick beige PU leather | |
|---|---|---|
| Seat cushion core | High-resilience cold-cure polyurethane foam | |
| Backrest core | Molded polyurethane foam with lumbar contour | |
| Armrest construction | PU-padded top with polished chrome accent strip, curved carbon-fiber look structural support | |
| Internal seat/back frame | 15mm thick multi-layer plywood with welded steel reinforcement | |
| Tilt mechanism | 3mm thick stamped steel synchro tilt chassis | |
| Gas lift | Polished chrome-plated steel SGS Class 3 gas lift | |
| Five-star base | Polished die-cast aluminum alloy, 3mm wall thickness | |
| Casters | 60mm diameter black polyurethane dual-wheel casters with chrome accent ring | |
| Seam construction | Reinforced stitched seams with 8mm stitch pitch | |
| Backrest support shell | Molded high-impact polypropylene inner shell | |
| Headrest core | Molded polyurethane foam pad, attached directly to backrest frame without separate adjustment mechanism |
Adjustment / rotation / tilt / mobility / storage features
| Height adjustment | Pneumatic height adjustment via 100mm stroke Class 3 gas lift, actuated by side paddle lever | |
|---|---|---|
| Recline function | Synchro tilt mechanism linking seat and back movement at 1:2.5 ratio, with 3-position lock and adjustable tension knob | |
| Swivel function | 360° unrestricted swivel around central gas lift axis | |
| Mobility | Smooth rolling on 60mm PU dual casters, suitable for hard wood, tile and low-pile carpet floors | |
| Arm support | Fixed-height padded armrests with soft contact surface to reduce forearm pressure during desk work | |
| Head support | Integrated padded headrest aligned to support cervical spine in both upright and reclined positions | |
| Lumbar support | Contoured built-in lumbar zone in backrest molding to maintain neutral spine posture | |
| Recline Angle / Lock Reference | 125° with 3 suggested lock positions | |
| Tilt Tension User-weight Range | Reference adjustment coverage 120kg | |
| Rotation / Mobility Configuration | 360° swivel with 5-caster multidirectional movement |
Verified carton / gross weight / assembly / loading data
| Packaged unit count | 1 piece per master carton | |
|---|---|---|
| Reference carton dimensions (L×W×H) | 820 × 680 × 580 mm | |
| Reference gross weight per carton | 29kg | |
| Reference carton volume (CBM) | 0.32 CBM | |
| 20ft GP container loading quantity | 90 units | |
| 40ft HQ container loading quantity | 220 units | |
| Reference Package Count | 1 set / 2 cartons | |
| Reference Assembly Time | 40minutes per set | |
| Reference Carton Dimensions | 850 × 420 × 720mm | |
| Reference Packaged Gross Weight | 23kg/set |
Recommended spaces / users / usage modes
| Executive private office | High-back upholstered design suitable for management and executive private offices, providing extended seating comfort | |
|---|---|---|
| Conference room seating | Neutral beige finish and formal design suitable for high-end boardroom and meeting room deployment | |
| Home office | Polished chrome and neutral leather appearance suitable for premium home office setups | |
| 8-hour full-shift desk work | Ergonomic contouring and support features suitable for administrative, financial and managerial staff working full shifts | |
| Visitor/management meeting areas | High-end appearance suitable for client meeting seating in corporate reception zones | |
| Full-shift administrative desk work | Ergonomic contoured seat, back and lumbar support suitable for administrative, financial and operational staff working full 8-hour shifts at fixed workstations | |
| Corporate reception meeting areas | Premium upholstered finish suitable for client meeting seating in corporate reception and guest meeting zones, creating a professional impression for visitors | |
| Leadership open-plan workstations | Quiet PU casters and formal appearance suitable for senior staff open-plan workstations, with mobility to access adjacent work surfaces without excessive noise |
European market access and chemical requirements
| Applicable standard reference 1 | EN 1335:2020 Office furniture - Office work chairs - Part 1: Dimensions - safety requirements, applicable for ergonomic dimension verification | |
|---|---|---|
| Applicable standard reference 2 | EN 1335:2018 Office furniture - Office work chairs - Part 2: Safety requirements, applicable for structural strength and durability testing | |
| Applicable standard reference 3 | EN 1335:2018 Office furniture - Office work chairs - Part 3: Test methods, applicable for validation of structural performance | |
| Applicable standard reference 4 | EN 1021:2014 Upholstered furniture - Assessment of ignitability of upholstered furniture - Part 1: Ignition source smouldering cigarette, applicable for fire safety validation |
US and Canada office-furniture standards
| Applicable standard reference 1 | ANSI/BIFMA X2017 Office Chairs - Tests, applicable for back strength, seat durability, base load and caster testing | |
|---|---|---|
| Applicable standard reference 2 | ANSI/BIFMA X2017 Clause 5 for five-star base static load, minimum 1134kg static load requirement | |
| Applicable standard reference 3 | ANSI/BIFMA X2017 Clause 17 for swivel cycle durability, minimum 120,000 swivel cycle requirement |
Standards applicable to China-market projects
| Applicable standard reference 1 | GB/T 3324 General technical requirements for furniture, applicable for structural stability and finish quality testing | |
|---|---|---|
| Applicable standard reference 2 | GB 28007 Safety and technical requirements for office chairs, applicable for static load, impact and stability testing | |
| Applicable standard reference 3 | GB/T 29624 Upholstered furniture - Determination of abrasion resistance of upholstery fabrics, applicable for PU leather abrasion performance validation |
This product must meet the following technical requirements: 1. Applicable standard reference 1: GB/T 3324 General technical requirements for furniture, applicable for structural stability and finish quality testing; 2. Applicable standard reference 2: GB 28007 Safety and technical requirements for office chairs, applicable for static load, impact and stability testing; 3. Applicable standard reference 3: GB/T 29624 Upholstered furniture - Determination of abrasion resistance of upholstery fabrics, applicable for PU leather abrasion performance validation; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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