| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 660 x 680 x 1210 mm | |
|---|---|---|
| Seat width | 500 mm | |
| Seat depth | 460 mm | |
| Seat height range (max) | 530 mm | |
| Backrest height from seat | 580 mm | |
| Backrest inner width | 505 mm | |
| Armrest height above seat | 180 mm | |
| Headrest projection thickness | 60 mm | |
| Five-star base leg span | 680 mm | |
| Overall minimum height | 1110 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 user weight capacity | 136 kg | |
|---|---|---|
| Chair net weight | 16 kg | |
| Backrest recline angle | 135° | |
| Swivel rotation | 360° | |
| Seat foam density | 45 kg/m³ | |
| Gas lift stroke | 100 mm | |
| 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 polyester mesh | |
|---|---|---|
| Seat cushion upholstery | Teal woven fabric | |
| Seat padding core | 45kg/m³ high-density molded foam | |
| Frame, armrests and base | White PP (polypropylene) plastic | |
| Gas lift cylinder | BIFMA Class 3 steel, 80mm diameter | |
| Tilt mechanism | 2mm thick stamped steel plate | |
| Casters | 60mm diameter black PU tread nylon hub | |
| Internal seat support | 12mm thick plywood core | |
| Headrest padding | 30mm thick soft foam pad | |
| 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
| Seat height adjustment | Pneumatic gas lift adjusts from 430mm to 530mm seat height, controlled by side lever | |
|---|---|---|
| Backrest tilt function | Synchronized tilting with single-position upright lock and tension adjustment | |
| Swivel mobility | 360-degree free rotation around central gas lift column | |
| Caster movement | Smooth rolling on hard floors and low-pile carpet via dual-wheel casters | |
| Headrest adjustment | Height-adjustable padded headrest with 60mm vertical projection | |
| Lumbar support | Contoured integrated mesh lumbar support follows natural spine curve | |
| Armrest support | Fixed curved PP armrests provide 180mm arm support height above seat | |
| 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
| Office workstation use | Suitable for 760 mm standard office desks for daily computer work | |
|---|---|---|
| Home study space | Fits compact home office desks for long-duration study or remote work | |
| Conference room seating | Appropriate for meeting rooms with swivel and tilt functionality for collaborative work | |
| Student desk setup | Suitable for teenage or adult student desks with adjustable height for multiple users | |
| Coworking space deployment | Durable construction and easy-roll casters suit flexible shared workspace 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
| EN 1335-1:2020 | Applies to office chair dimensional, safety and strength requirements for task seating | |
|---|---|---|
| EN 1022:2018 | Applies to domestic and contract seating stability performance requirements | |
| EN 12520:2015 | Applies to furniture seating strength, durability and safety requirements |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applies to general-purpose office chair safety, durability and performance requirements | |
|---|---|---|
| Caster rolling durability | Recommended references: BIFMA X5.1 |
Standards applicable to China-market projects
| GB/T 3326-2016 | Applies to office chair dimensional accuracy and structural measurement requirements | |
|---|---|---|
| GB/T 3324-2017 | Applies to general wooden/metal furniture surface quality and inspection rules | |
| GB 28007-2011 | Applies to office chair stability and static load safety requirements |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applies to office chair dimensional accuracy and structural measurement requirements; 2. GB/T 3324-2017: Applies to general wooden/metal furniture surface quality and inspection rules; 3. GB 28007-2011: Applies to office chair stability and static load safety requirements; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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