| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 680 x 650 x 1280 mm | |
|---|---|---|
| Seat width | 520 mm | |
| Seat depth | 500 mm | |
| Seat height range | 500 mm | |
| Backrest height | 720 mm | |
| Backrest width | 500 mm | |
| Headrest dimensions | 320 x 120 mm | |
| Armrest height from seat | 220 mm | |
| 5-star base diameter | 700 mm | |
| Caster diameter | 60 mm | |
| Maximum seat height | 500 mm | |
| Armrest top surface width | 80 mm | |
| Seat cushion thickness | 100 mm | |
| Finished Seat Cushion Thickness | 90 mm | |
| Backrest Padding Thickness | 70 mm | |
| Lumbar Support Zone Height | 240 mm |
Net weight / load capacity / users / durability
| Recommended maximum user weight | 150 kg | |
|---|---|---|
| Chair net weight range | 22 kg | |
| Seat foam density | 45 kg/m³ | |
| Backrest foam density | 35 kg/m³ | |
| Gas lift cycle durability | 100000 cycles | |
| Caster rolling durability | 100000 cycles | |
| Backrest lumbar support foam density | 35 kg/m³ | |
| 5-star base static load capacity | 1100 kg | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest surface | Breathable mesh fabric stretched over rigid plastic frame | |
|---|---|---|
| Seat cushion | Woven fabric upholstery over high-density polyurethane foam core | |
| Headrest | Mesh-upholstered padded pad with rigid internal support | |
| Armrests | Matte white nylon frame with flat top surface | |
| 5-star base | Chrome-plated steel tubular construction with polished finish | |
| Gas lift cylinder | Chrome-plated steel pneumatic cylinder with black plastic housing | |
| Casters | Black dual-wheel casters with chrome-plated mounting stems | |
| Tilt mechanism | Steel chassis with black powder-coated finish under seat | |
| Seat internal frame | Plywood or steel internal support frame under foam cushion | |
| Backrest frame | Reinforced plastic outer frame with integrated lumbar support bump | |
| 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 controlled by left-side lever, providing 100 mm of vertical travel | |
|---|---|---|
| Backrest tilt function | Synchronous or knee-tilt mechanism with adjustable tension, locking in multiple recline positions | |
| 360-degree swivel | Full rotation around central gas lift axis enabled by bearing mechanism | |
| Fixed armrest support | Rigidly mounted armrests with flat top surface, providing forearm support at fixed height | |
| Headrest support | Padded headrest mounted to top of backrest for neck and upper head support | |
| Mobility function | Five dual-wheel casters enabling smooth rolling on hard floor and low-pile carpet surfaces | |
| Breathable back support | Tensioned mesh backrest conforms to user back shape while providing air circulation | |
| Fixed headrest support | Padded headrest mounted to top of backrest for neck and upper head support at fixed position | |
| Recline Angle / Lock Reference | 125° with 3 suggested 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
| Packaging configuration | 1 piece per carton, knockdown flat-pack design | |
|---|---|---|
| Carton dimensions | 800 x 650 x 350 mm | |
| Gross weight per carton | 25 kg | |
| Carton volume | 0.182 CBM | |
| Assembly time | 30 minutes | |
| 20ft container load quantity | 180 pieces | |
| Warranty period | 36 months | |
| Reference Package Count | 1 set / 2 cartons | |
| Reference Assembly Time | 40 minutes per set | |
| Reference Carton Dimensions | 850× 420× 720 mm |
Recommended spaces / users / usage modes
| Executive offices | Suitable for private executive workspaces requiring ergonomic support and professional appearance | |
|---|---|---|
| Open plan workstations | Appropriate for full-time workstation use with adjustable height and tilt for extended seated work | |
| Conference rooms | Suitable for meeting room seating for extended discussion sessions with 360-degree swivel for flexible orientation | |
| Home office use | Well-suited for remote work setups requiring supportive seating at standard 760 mm desk heights | |
| Administrative work areas | Ideal for administrative and clerical staff requiring durable daily-use seating with 150 kg weight capacity | |
| Executive private offices | Suitable for private executive workspaces requiring ergonomic support and professional appearance | |
| 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 | EN 1335:2020 applies for office chair safety requirements for dimensions, strength and durability | |
|---|---|---|
| Ergonomics guideline | EN 1728:2012 applies for office furniture ergonomic design recommendations |
US and Canada office-furniture standards
| Chair durability testing | ANSI/BIFMA X2017 applies for general purpose office chairs performance testing | |
|---|---|---|
| Stability requirement | ANSI/BIFMA X2017 Section 7 applies for chair stability testing under rearward and forward load conditions |
Standards applicable to China-market projects
| Seat strength and stability | GB/T 10357.2 applies for office chair seat static load and durability testing | |
|---|---|---|
| Backrest strength | GB/T 10357.3 applies for backrest static load and fatigue testing | |
| Formaldehyde emission | GB 18584 applies for wood-based panel formaldehyde limit requirements |
This product must meet the following technical requirements: 1. Seat strength and stability: GB/T 10357.2 applies for office chair seat static load and durability testing; 2. Backrest strength: GB/T 10357.3 applies for backrest static load and fatigue testing; 3. Formaldehyde emission: GB 18584 applies for wood-based panel formaldehyde limit requirements; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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