| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 680 x 670 x 1070 mm | |
|---|---|---|
| Seat width | 515 mm | |
| Seat depth | 460 mm | |
| Maximum seat height (floor to seat top) | 535 mm | |
| Backrest height | 570 mm | |
| Backrest width | 610 mm | |
| Armrest height above seat | 180 mm | |
| Five-star base diameter | 680 mm | |
| Caster diameter | 60 mm | |
| Seat cushion thickness | 100 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 static user load | 136 kg | |
|---|---|---|
| Net chair weight | 17 kg | |
| Gas lift vertical stroke | 100 mm | |
| Seat foam density | 45 kg/m³ | |
| Foam rebound rate | 45% | |
| Mesh upholstery abrasion resistance | 50000 double rubs | |
| Swivel rotation range | 360° | |
| Warranty period (frame/mechanism) | 3 years | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest upholstery | Breathable woven polyester mesh over PA nylon-fiberglass frame | |
|---|---|---|
| Backrest support | Integrated contoured lumbar support zone in mesh frame | |
| Seat cushion core | High-density molded polyurethane foam with 12mm plywood inner support | |
| Seat upholstery | Breathable woven fabric/mesh cover over foam core | |
| Armrests | Fixed curved loop PP armrests with integrated padded tops | |
| Gas lift column | Black coated steel Class 3 pneumatic gas lift | |
| Tilt mechanism | 2.5mm thick steel plate multi-lock tilt with tension adjustment | |
| Five-star base | Glass-reinforced nylon 5-star caster base | |
| Casters | Dual-wheel polyurethane/nylon swivel casters | |
| 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
| Height adjustment | Pneumatic lever-operated seat height adjustment with 100mm vertical stroke | |
|---|---|---|
| Tilt function | 3-position locking synchro tilt with user weight tension adjustment | |
| Tilt lock angle | 12° maximum recline angle with lock in upright and mid-tilt positions | |
| Swivel function | 360-degree full rotation around central gas lift column | |
| Mobility | Smooth rolling on hard floors and low-pile carpet via dual-wheel casters | |
| Lumbar support | Fixed contoured lumbar zone aligned to natural lower back curve | |
| Seam construction | 8 stitches per inch seam pitch for upholstery durability | |
| 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 | Suitable for 8-hour daily desk work with breathable mesh and lumbar support | |
|---|---|---|
| Home office study spaces | Compact 680mm footprint fits standard home desk configurations | |
| Co-working shared desk spaces | Durable fixed armrest design resists damage from frequent multi-user turnover | |
| Conference meeting rooms | Neutral grey finish and mid-back profile suits formal meeting environments | |
| Call center seating | 360-degree swivel and height adjustment supports flexible multi-screen workstation use | |
| 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 dimensional stability | EN 1335:2020 |
US and Canada office-furniture standards
| Office chair performance standard | ANSI/BIFMA X2017 | |
|---|---|---|
| Caster durability rating | ANSI/BIFMA X2017Clause 17 |
Standards applicable to China-market projects
| Office chair mechanical safety | GB/T 10357.3 | |
|---|---|---|
| Formaldehyde emission limit | GB 18584 |
This product must meet the following technical requirements: 1. Office chair mechanical safety: GB/T 10357.3; 2. Formaldehyde emission limit: GB 18584; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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