| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall chair dimensions | 660 x 680 x 1220 mm | |
|---|---|---|
| Seat width | 490 mm | |
| Seat depth | 410 mm | |
| Seat cushion thickness | 80 mm | |
| Backrest height | 620 mm | |
| Headrest extension above backrest | 130 mm | |
| Seat height adjustment range | 530 mm | |
| Armrest height above seat | 265 mm | |
| Five-star base diameter | 660 mm | |
| Headrest width | 340 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
| Recommended maximum user weight | 136 kg | |
|---|---|---|
| Chair net weight | 21.6 kg | |
| Gas lift static load rating | 150 kg | |
| Seat foam density | 50 kg/m³ | |
| Mesh fabric abrasion resistance | 50000 Martindale cycles | |
| Seat foam rebound rate | 60% | |
| 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 |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest upholstery | High-elastic breathable polyester mesh | |
|---|---|---|
| Seat cushion core | High-density molded polyurethane foam | |
| Armrest pads | Soft polyurethane padded tops | |
| Backrest frame | Glass-fiber reinforced polyamide (PA+GF) | |
| Five-star base | Reinforced nylon composite | |
| Caster wheels | Polyurethane tread on nylon hub | |
| Gas lift cylinder | Chrome-plated steel Class 3 gas lift | |
| Tilt mechanism plate | 2.5mm thick stamped steel butterfly chassis | |
| Headrest frame | Curved polypropylene with mesh overlay | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board | |
| Backrest Internal Frame Thickness | 14 mm bent plywood/composite reinforced frame | |
| Five-star Base Material Thickness | Metal base wall 3.5 mm; diameter 700 mm |
Adjustment / rotation / tilt / mobility / storage features
| Seat height adjustment | 100mm vertical travel via Class 3 gas lift, lever-operated | |
|---|---|---|
| Swivel function | 360-degree full rotation around central gas lift axis | |
| Armrest adjustment | Height-adjustable with 85mm vertical travel, lockable at set positions | |
| Headrest adjustment | Height-adjustable curved neck support, 130mm vertical extension | |
| Tilt function | 125-degree maximum backrest recline with multi-position lock | |
| Lumbar support | Integrated contoured lumbar zone in mid-back mesh frame | |
| Mobility | Smooth rolling on 65mm PU casters suitable for hard floors and low-pile carpet | |
| Tilt tension control | Adjustable tilt resistance knob under seat to match user weight | |
| 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
| Corporate open office workstations | Suitable for 8-hour daily seated work with ergonomic lumbar and neck support | |
|---|---|---|
| Home office workspace | Compact footprint fits standard desk setups with height adjustment for multi-user use | |
| Conference meeting rooms | Professional appearance with swivel and tilt for collaborative meeting environments | |
| Coworking shared spaces | Durable construction supports frequent user turnover and adjustable for diverse body types | |
| Study and computer work areas | Breathable mesh back prevents heat buildup during long work or study sessions | |
| 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
| Office chair safety standard | EN 1335:2009 | |
|---|---|---|
| Furniture caster performance | EN 12529:2002 |
US and Canada office-furniture standards
| Office chair general purpose standard | ANSI/BIFMA X2017 | |
|---|---|---|
| Office chair gas lift safety | ANSI/BIFMA X5.1 Clause 8 | |
| Caster rolling durability | 100000 cycles |
Standards applicable to China-market projects
| Office chair safety requirement | GB/T 3326 | |
|---|---|---|
| Upholstered furniture VOC limit | GB 18584 |
This product must meet the following technical requirements: 1. Office chair safety requirement: GB/T 3326; 2. Upholstered furniture VOC limit: GB 18584; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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