| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions (W x D x H) | 590 x 640 x 955 mm | |
|---|---|---|
| Seat width | 510 mm | |
| Seat depth | 510 mm | |
| Seat height range (floor to seat top) | 500 mm | |
| Armrest outer width | 655 mm | |
| Armrest height above seat | 240 mm | |
| Individual backrest pad width | 220 mm | |
| Total backrest height | 580 mm | |
| Five-star base span diameter | 640 mm | |
| Caster diameter | 60 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 | 11 kg | |
|---|---|---|
| Recommended static user load capacity | 250 kg | |
| Suitable user height range | 1700 mm | |
| Gas lift lift cycle durability | 100000 cycles | |
| Caster rolling durability | 40000 cycles | |
| Seat cushion foam density | 45 kg/m³ | |
| Upholstery fabric abrasion resistance | 50000 Martindale 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 |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back upholstery | Light grey woven polyester fabric, 0.8 mm thickness | |
|---|---|---|
| Seat cushion padding | 40 mm thick high-resilience polyurethane foam | |
| Backrest pad padding | 30 mm thick molded polyurethane foam | |
| Armrest construction | Injection-molded PP with matching grey matte finish, T-shaped fixed design | |
| Structural seat frame | 2 mm thick steel mechanism plate, 12 mm plywood seat support | |
| Gas lift component | SGS-certified Class 3 steel pneumatic cylinder, 50 mm outer diameter | |
| Five-star base | Injection-molded glass-fiber reinforced nylon, light grey finish | |
| Caster construction | Dual-wheel PU soft tread casters, nylon hub, non-marking design | |
| Back support frame | Curved PP inner frame with flex points for back movement | |
| Seam construction | 8 stitches per inch matching grey thread, reinforced stress points | |
| 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 | 100 mm vertical travel via side lever, Class 3 gas lift actuation | |
|---|---|---|
| Swivel function | 360-degree unrestricted rotation around central gas lift axis | |
| Dual backrest support | Independent split pads provide separate spinal pressure distribution | |
| Back rocking function | 30-degree rear tilt with adjustable tension, single-position upright lock | |
| Fixed armrest support | 240 mm height above seat, non-adjustable T-pad for stable elbow rest | |
| Mobility function | Five dual-wheel casters enable smooth rolling on hard and carpeted floors | |
| 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
| Home office workspace | Suited for daily desk work at home, compact footprint fits small study spaces | |
|---|---|---|
| Open plan office workstation | Appropriate for employee task seating, supports 8-hour seated work shifts | |
| Co-working shared space | Neutral light grey color matches modern workspace decor, durable fabric for high turnover use | |
| Student study desk use | Adjustable height fits teen to adult users, rolling base for easy repositioning | |
| Small meeting room seating | Fixed armrests and swivel function support short collaborative meetings | |
| 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 requirements | EN 1335:2018 | |
|---|---|---|
| Office chair stability and strength | EN 1335:2018 | |
| Office chair dimensional ergonomics | EN 1335:2020 |
US and Canada office-furniture standards
| Office chair general purpose standard | ANSI/BIFMA X2017 | |
|---|---|---|
| Caster durability test | ANSI/BIFMA X5.1 Clause 12 |
Standards applicable to China-market projects
| Office chair structural safety | GB/T 3326 | |
|---|---|---|
| Office chair mechanical durability | GB/T 10357.3 | |
| Upholstered furniture formaldehyde limits | GB 18584 |
This product must meet the following technical requirements: 1. Office chair structural safety: GB/T 3326; 2. Office chair mechanical durability: GB/T 10357.3; 3. Upholstered furniture formaldehyde limits: GB 18584; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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