| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 620 x 680 x 1280 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 maximum user weight | 150 kg | |
|---|---|---|
| Net product weight | 18 kg | |
| Mesh backrest abrasion resistance | 30000 double rubs | |
| Gas lift stroke length | 100 mm | |
| Tilt recline maximum angle | 120 degrees | |
| 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 | |
| Caster Rolling Durability Reference | Acceptance target 30000 cycles |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest construction | Breathable black polyester mesh over reinforced nylon frame | |
|---|---|---|
| Seat cushion | Molded high-resilience polyurethane foam, fabric upholstered | |
| Armrests | Fixed black molded nylon loop armrests attached to seat frame | |
| Headrest | Curved padded ergonomic headrest, frame-mounted | |
| Five-star base | Injection-molded black nylon reinforced five-star leg base | |
| Casters | Dual-wheel 50mm diameter PU/nylon non-marking swivel casters | |
| Gas lift cylinder | Chromed steel Class 3 gas lift with 50mm outer diameter | |
| Tilt mechanism | 2.5mm thick steel plate mechanism under seat with tension knob | |
| 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 | |
| Caster Engineering Specification | 5 PU-tread swivel casters, 60 mm diameter |
Adjustment / rotation / tilt / mobility / storage features
| Seat height adjustment | Pneumatic gas lift operated by side lever, 100mm travel between 440 and 540mm | |
|---|---|---|
| 360-degree swivel | Full rotational swivel enabled by central swivel joint between seat and base | |
| Tilt and lock function | Backward tilt up to 120 degrees with 1-position upright lock and tension adjustment | |
| Fixed arm support | Integrated loop armrests provide stable forearm support at fixed 210mm height above seat | |
| Lumbar support | Contoured mesh back provides built-in passive lumbar support aligned to natural spine curve | |
| Head and neck support | Curved integrated headrest supports cervical spine during upright or reclined posture | |
| Smooth mobility | Dual-wheel casters enable low-effort rolling on hard floors and low-pile carpet | |
| Tilt tension adjustment | Under-seat knob adjusts recline resistance to match user body weight | |
| 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 | Standard dimensions fit standard desk heights for daily 8-hour office use | |
|---|---|---|
| Home office desks | Compact 620mm width fits small home workspaces without excess footprint | |
| Meeting and conference rooms | Swivel and caster function supports easy movement around conference tables | |
| Task-focused individual work | Breathable mesh and lumbar support suit extended computer-based task work | |
| Bulk corporate procurement | Commercial-grade specification meets standard office furniture procurement requirements | |
| 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 | Office work chairs: dimensional, safety and strength requirement reference | |
|---|---|---|
| EN 1335-2:2018 | Office work chairs: safety test method reference for structural durability | |
| EN 1022:2018 | Domestic and contract seating: stability test method reference |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | General-purpose office chairs: load, durability and safety test reference | |
|---|---|---|
| Caster rolling durability rating | 100000 cycles | |
| Nylon five-star base static load rating | 1136 kg |
Standards applicable to China-market projects
| GB/T 3326-2016 | Office furniture: seating dimensional accuracy and stability requirement reference | |
|---|---|---|
| GB/T 35607-2017 | Green product assessment standard for furniture VOC and harmful substance limits |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Office furniture: seating dimensional accuracy and stability requirement reference; 2. GB/T 35607-2017: Green product assessment standard for furniture VOC and harmful substance limits; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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