| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions (max) | 640 x 610 x 1070 mm | |
|---|---|---|
| Seat height adjustment range max | 535 mm | |
| Seat depth | 515 mm | |
| Seat width | 440 mm | |
| Backrest height | 570 mm | |
| Backrest width | 460 mm | |
| Armrest height above seat | 180 mm | |
| Armrest front projection | 440 mm | |
| Five-star base width | 640 mm | |
| Minimum total height | 970 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 | 15 kg | |
|---|---|---|
| Maximum static load capacity | 120 kg | |
| Recommended user height | 180 cm | |
| Caster rolling durability cycles | 100000 | |
| Seat foam density | 45 kg/m³ | |
| Seat foam rebound rate | 45% | |
| Seam stitch pitch | 8 mm | |
| Mesh 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
| Backrest frame | Injection-molded fiberglass-reinforced nylon | |
|---|---|---|
| Backrest upholstery | Breathable woven polyester mesh | |
| Integrated lumbar support | Molded rigid PP support panel | |
| Seat cushion core | 70mm thick high-density polyurethane foam | |
| Seat upholstery | Wear-resistant polyester fabric over foam | |
| Fixed armrests | Integrated loop-style matte black nylon | |
| Five-star base | 3mm thick reinforced black nylon | |
| Gas lift cylinder | 50mm diameter Class 3 steel pneumatic cylinder | |
| Casters | 50mm diameter dual-wheel soft PU casters | |
| Tilt mechanism plate | 2.5mm thick stamped steel | |
| 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 gas lift with 100mm vertical travel | |
|---|---|---|
| Swivel function | 360° full rotation around central stem | |
| Tilt function | Center-tilt with 125° maximum recline angle | |
| Mobility | Smooth rolling on five dual-wheel casters | |
| Lumbar support | Fixed contoured integrated lumbar zone | |
| Armrest function | Fixed loop armrests for forearm support | |
| Tilt tension control | Adjustable resistance knob for 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
| Open-plan office workstations | Suits daily 8-hour seated work for administrative and operational staff | |
|---|---|---|
| Home office setups | Compact footprint fits standard desk spaces for remote work use | |
| Meeting and conference rooms | Standardized seating for scheduled attendee use in shared spaces | |
| Coworking shared offices | Durable construction supports high-turnover multi-user environments | |
| Computer lab and training rooms | Rolling mobility supports easy movement between work positions | |
| Reception and admin desks | Professional black finish matches standard commercial office decor | |
| 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 furniture seating safety standard | EN 1335:2018 | |
|---|---|---|
| Office furniture seating dimensions standard | EN 1335:2020 |
US and Canada office-furniture standards
| Office chair performance standard | ANSI/BIFMA X2017 |
|---|
Standards applicable to China-market projects
| Office chair safety standard | GB/T 22802 | |
|---|---|---|
| Upholstered furniture formaldehyde limit | GB 18584 |
This product must meet the following technical requirements: 1. Office chair safety standard: GB/T 22802; 2. Upholstered furniture formaldehyde limit: GB 18584; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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