| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions (WxDxH, max height) | 635 x 640 x 1095 mm | |
|---|---|---|
| Seat width | 505 mm | |
| Seat depth | 465 mm | |
| Backrest height | 570 mm | |
| Seat height adjustment range (max) | 525 mm | |
| Five-star base diameter | 640 mm | |
| Armrest height above seat | 200 mm | |
| Backrest frame width | 430 mm | |
| Maximum armrest height from floor | 725 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 product weight | 12 kg | |
|---|---|---|
| Recommended maximum user weight | 136 kg | |
| Seat foam density | 45 kg/m³ | |
| Seat foam rebound rate | 45 % | |
| Gas lift stroke length | 85 mm | |
| Mesh back abrasion resistance | 50000 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 | |
| Five-star Base Static Load Reference | Acceptance target ≥120 kg; chair reference load 150 kg |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest upholstery | Breathable black polyester mesh | |
|---|---|---|
| Seat cushion padding | 70mm thick high-density moulded foam | |
| Seat surface upholstery | Black wear-resistant polyester fabric | |
| Armrests | Injection-moulded black polypropylene with soft top pad | |
| Internal seat frame | 1.5mm thick welded steel plate | |
| Five-star base | Black injection-moulded nylon | |
| Gas lift cylinder | Chromed steel Class 3 pneumatic cylinder | |
| Casters | 50mm diameter black nylon dual-wheel casters | |
| Seat mechanism plate | 2.0mm thick stamped steel center-tilt chassis | |
| 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
| Pneumatic seat height adjustment | 110mm stroke lever-operated adjustment under seat, locks at set height | |
|---|---|---|
| 360-degree swivel rotation | Full 360° smooth rotation supported by central gas lift and base | |
| Center-tilt recline function | 12° backward tilt with tension adjustment knob under seat | |
| Integrated lumbar support | Fixed curved lumbar bump positioned at lower back for seated support | |
| Smooth rolling mobility | Five dual-wheel casters support movement across hard floors and low-pile carpet | |
| Fixed armrest support | Static curved armrests provide 200mm high forearm support for seated tasks | |
| 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 | Sized to fit standard 750mm high office desks for daily task work | |
|---|---|---|
| Home office workspaces | Compact footprint suitable for small home study and desk setups | |
| Conference and meeting rooms | Professional black finish matches standard meeting room furniture layouts | |
| Co-working shared spaces | Durable construction supports high-turnover multi-user daily use | |
| Call center and reception stations | Breathable mesh back supports extended seated shifts for staff | |
| 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
| EN 1335-1:2020 | Applies to office chair dimensional, safety and strength requirements for task seating | |
|---|---|---|
| EN 1022:2018 | Applies to seating stability determination for domestic and contract office chairs |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applies to general-purpose office chair safety, durability and performance benchmarks | |
|---|---|---|
| Caster rolling durability | 40000 cycles | |
| Static load capacity for five-star base | 1134 kg |
Standards applicable to China-market projects
| GB/T 3326-2016 | Applies to office chair dimensional stability and size measurement requirements | |
|---|---|---|
| GB/T 10357.3-2013 | Applies to office chair mechanical strength and durability test methods |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applies to office chair dimensional stability and size measurement requirements; 2. GB/T 10357.3-2013: Applies to office chair mechanical strength and durability test methods; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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