| Submitted | Field | Original | 修改后参数 | Note / Status |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions (W x D x H) | 650 x 680 x 1200mm | |
|---|---|---|
| Seat width | 480 mm | |
| Seat depth | 460 mm | |
| Seat height adjustment range | 520mm | |
| Backrest total height (seat surface to top of back frame) | 720 mm | |
| Adjustable headrest dimensions (W x H) | 280 x 180 mm | |
| Headrest height adjustment range | 80 mm | |
| Armrest height above seat surface | 280mm | |
| Five-star base diameter | 680 mm | |
| Caster diameter | 60 mm | |
| Adjustable lumbar support pad dimensions (W x H) | 320 x 120 mm | |
| Seat height adjustment range (floor to seat surface) | 520mm | |
| Armrest height adjustment range above seat surface | 280mm | |
| Finished Seat Cushion Thickness | 90mm | |
| Backrest Padding Thickness | 70mm | |
| Lumbar Support Zone Height | 240mm |
Net weight / load capacity / users / durability
| Net weight range | 21kg | |
|---|---|---|
| Maximum recommended user weight | 120 kg | |
| Seat static load capacity | 136 kg | |
| Caster rolling durability | ≥100,000 cycles | |
| Gas lift cycle life | ≥100,000 height adjustments | |
| Seat foam density | 55kg/m³ | |
| Back mesh tensile strength | ≥180 N/5cm | |
| Maximum recommended static user weight | 120kg | |
| Seat foam rebound rate | ≥40% | |
| Synchro-tilt mechanism cycle life | ≥150,000 recline cycles |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest support surface | Breathable woven elastic polyester mesh, tensioned over nylon frame | |
|---|---|---|
| Seat cushion core | Molded high-resilience polyurethane foam, thickness 60mm | |
| Seat and back outer frame | Reinforced glass-fiber nylon, matte black finish | |
| Adjustable headrest | Molded nylon outer shell with padded foam and fabric/mesh contact surface | |
| Adjustable lumbar support pad | Molded polypropylene support with soft PU foam padding | |
| Armrests | Rigid nylon support stem with soft TPU/PU padded arm top, matte black finish | |
| Five-star base | Reinforced injection-molded nylon, wall thickness ≥3 mm | |
| Gas lift | Chrome-plated steel Class 3/4 gas lift, outer diameter 50 mm | |
| Casters | Black PU soft-tread dual-wheel casters with nylon wheel core | |
| Recline/height control mechanism | 3mm thick stamped steel chassis with black powder coat finish | |
| Seat and back internal frame | Glass-fiber reinforced injection-molded nylon, ≥4mm wall thickness, matte black textured finish | |
| Adjustable headrest assembly | Molded nylon outer shell, 20mm thick PU foam padding covered in matching breathable fabric/mesh, fixed to curved steel adjustment stem |
Adjustment / rotation / tilt / mobility / storage features
| Seat height adjustment | Pneumatic adjustment via right-side lever, 100 mm stroke, infinite lock between 520mm seat height | |
|---|---|---|
| Backrest recline function | Synchro-tilt mechanism allowing 120 degree recline, with tension adjustment knob and infinite position lock | |
| Headrest adjustment | Vertical height adjustment along rear track, plus ±15 degree tilt angle adjustment, locks at set position | |
| Lumbar support adjustment | Vertical height adjustment (50 mm range) to align with user's lower back curve, depth self-adapting to user weight | |
| 360-degree swivel | Full rotation around central gas lift axis with no dead spots, enabled by swivel joint in chassis | |
| Armrest adjustment | Height adjustment (80 mm range) to match desk height, with optional width/rotation adjustment per arm | |
| Mobility | Smooth rolling on all 5 dual-wheel casters, suitable for carpet and hard floor surfaces with standard PU tread | |
| Weight-activated tension | Chassis automatically adjusts recline tension to match user weight, or manual tension knob for custom resistance | |
| Backrest synchro-tilt recline | Synchronized recline mechanism with 1:2.2 seat-to-back tilt ratio, up to 120° maximum recline angle, tension adjustment via under-seat knob for user weight 120kg, infinite position lock at any recline angle | |
| Headrest multi-axis adjustment | Vertical height adjustment along 80mm rear track, ±15° pivot tilt angle adjustment, friction lock to hold set position for cervical support | |
| Surface mobility | Smooth omnidirectional rolling on 5 dual-wheel PU casters, low rolling resistance suitable for low-pile carpet (≤8mm pile) and hard flooring (wood, tile, laminate) without surface damage | |
| Recline tension adjustment | Manual rotary tension knob under front of seat, adjusts recline resistance across 8 full rotations to match user weight and preference |
Verified carton / gross weight / assembly / loading data
| Number of shipping cartons | 1 carton | |
|---|---|---|
| Shipping carton dimensions (L x W x H) | 880 x 660 x 380 mm | |
| Gross shipping weight | 24kg | |
| Shipping volume (CBM) | 0.22 CBM | |
| Required assembly time | 25minutes | |
| 20ft GP container loading quantity | 330 units | |
| 40ft HQ container loading quantity | 780 units | |
| Gross shipping weight per carton | 24kg | |
| Shipping volume per unit | 0.22 CBM | |
| 20ft GP container loading quantity (stacked, no pallet) | 330 units |
Recommended spaces / users / usage modes
| Open-plan office workstations | Sized to fit standard 1200/1400 mm office desks, adjustable height and armrests support 8 hour daily desk work for most adult users | |
|---|---|---|
| Home office workspaces | 650mm width footprint fits compact 1400mm home desks, breathable mesh back reduces heat buildup during extended use, muted aesthetic coordinates with residential decor without commercial visual clutter | |
| Meeting and conference rooms | Professional minimalist aesthetic, swivel and recline function supports collaborative discussion, durable casters allow easy repositioning around conference tables | |
| Coworking spaces | Adjustable features accommodate diverse user heights and preferences, durable construction withstands frequent multi-user daily use | |
| Task-focused work environments | Dedicated lumbar support and ergonomic recline reduce back fatigue during long periods of computer work, writing or virtual meetings | |
| Shared coworking spaces | Multi-point adjustable features (height, lumbar, headrest, armrests) accommodate diverse user heights and preferences, durable polymer and steel construction withstands 10+ hours of daily multi-user turnover | |
| Focus work and call center environments | Dedicated adjustable lumbar support and waterfall seat edge reduce lower back and leg fatigue during 6+ hour continuous computer work, call handling or virtual meeting sessions | |
| Training room configurations | Stackable knock-down design allows easy bulk storage when not in use, tool-light assembly enables fast reconfiguration of temporary training seating layouts |
European market access and chemical requirements
| EN 1335-1 | 2000 Office furniture - Office work chairs - Part 1: Dimensions - Determination of dimensions: Recommended as reference for ergonomic dimensional alignment for global markets | |
|---|---|---|
| EN 1335-2 | 2018 Office furniture - Office work chairs - Part 2: Safety requirements: Recommended as reference for structural safety compliance for EU market procurement | |
| EN 1335-3 | 2009 Office furniture - Office work chairs - Part 3: Test methods: Recommended as reference for standardized durability testing protocol |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 clause 5 | Recommended reference for backrest static load testing requirements |
|---|
Standards applicable to China-market projects
| GB/T 3324-2017 General technical requirements for wooden furniture | Recommended for reference for dimensional stability of any integrated polymer wood-composite components (if applicable) | |
|---|---|---|
| GB/T 35607-2017 Green product evaluation - Furniture | Recommended as procurement acceptance reference for formaldehyde and VOC emission limits for foam and fabric components |
This product must meet the following technical requirements: 1. GB/T 3324-2017 General technical requirements for wooden furniture: Recommended for reference for dimensional stability of any integrated polymer wood-composite components (if applicable); 2. GB/T 35607-2017 Green product evaluation - Furniture: Recommended as procurement acceptance reference for formaldehyde and VOC emission limits for foam and fabric components; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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