| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 660 x 680 x 1060 mm | |
|---|---|---|
| Seat cushion width | 510 mm | |
| Seat cushion depth | 480 mm | |
| Adjustable seat height from floor | 540 mm | |
| Backrest width | 430 mm | |
| Backrest height from seat surface | 530 mm | |
| Armrest height above seat | 195 mm | |
| Minimum overall chair height | 975 mm | |
| Five-star base span diameter | 680 mm | |
| Minimum armrest height from floor | 655 mm | |
| Maximum armrest height from floor | 740 mm | |
| Minimum seat height from floor | 455 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 | 14 kg | |
|---|---|---|
| Maximum static user weight capacity | 136 kg | |
| Recommended daily usage duration | 8 hours | |
| Seat cushion foam density | 45 kg/m³ | |
| Seat cushion foam rebound rate | 45% | |
| Backrest mesh abrasion resistance | 50000 cycles | |
| Gas lift stroke length | 100 mm | |
| Caster rolling durability | 40000 cycles | |
| Five-star base static load rating | 1136 kg | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest support panel | Breathable woven polyester mesh over grey PP frame | |
|---|---|---|
| Seat cushion core | 70mm thick high-density polyurethane foam | |
| Seat cushion surface | Wear-resistant grey fabric upholstery | |
| Armrest construction | Fixed grey PP armrests with integrated top pads | |
| Height adjustment cylinder | 50mm diameter Class 2 steel gas lift | |
| Tilt mechanism plate | 2.0mm thick A3 steel swivel-tilt chassis | |
| Chair base | Glass-fiber reinforced PP five-star caster base | |
| Rolling casters | 50mm diameter PU twin-wheel swivel casters | |
| Internal seat support plate | 12mm thick multi-layer pressed forming board | |
| Seam stitch pitch | 3 stitches per cm | |
| 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 adjusts 85mm between 455mm and 540mm seat height | |
|---|---|---|
| 360-degree swivel rotation | Full rotation enabled by central swivel mechanism between seat and base | |
| Backrest tilt function | 12-degree backward tilt with tension adjustment knob under seat | |
| Upright tilt lock | Locks backrest in full upright position for focused task work | |
| Smooth rolling mobility | Dual-wheel casters roll on hard floors and low-pile carpet | |
| Integrated lumbar support | Curved central back rib aligns with natural lower back curve | |
| Fixed arm support | Rigid armrests maintain 195mm height above seat for forearm rest | |
| 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
| Shipping carton dimensions | 720 x 680 x 420 mm | |
|---|---|---|
| Gross shipping weight per carton | 16 kg | |
| 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 office workstations | Standard task chair dimensions fit standard 1200mm office desk cubicles | |
|---|---|---|
| Home office study spaces | Neutral grey finish blends with residential and home office decor | |
| Meeting and conference rooms | Uniform design suitable for boardroom and meeting room seating | |
| Educational computer labs | Durable construction supports frequent student use in campus labs | |
| Reception and admin areas | Professional light grey appearance matches front desk and admin environments | |
| 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 requirement | EN 1335:2020 | |
|---|---|---|
| Office chair mechanical strength recommendation | EN 1335:2018 | |
| Office chair stability recommendation | EN 1335:2009 |
US and Canada office-furniture standards
| General purpose office chair standard | ANSI/BIFMA X5.1:2017 | |
|---|---|---|
| Caster durability test | ANSI/BIFMA X5.1 Clause 12 | |
| Base static load test | ANSI/BIFMA X5.1 Clause 17 |
Standards applicable to China-market projects
| Office chair stability recommendation | GB/T 10357.2:2013 | |
|---|---|---|
| Office chair strength and durability recommendation | GB/T 10357.3:2013 | |
| Formaldehyde emission limit recommendation | GB 18584:2001 |
This product must meet the following technical requirements: 1. Office chair stability recommendation: GB/T 10357.2:2013; 2. Office chair strength and durability recommendation: GB/T 10357.3:2013; 3. Formaldehyde emission limit recommendation: GB 18584:2001; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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