| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 650 x 680 x 1210 mm | |
|---|---|---|
| Seat width | 490 mm | |
| Seat depth | 430 mm | |
| Seat thickness | 60 mm | |
| Adjustable seat height range endpoint | 515 mm | |
| Backrest height (excluding headrest) | 550 mm | |
| Headrest height | 95 mm | |
| Armrest height above seat | 180 mm | |
| Five-star base diagonal width | 680 mm | |
| Minimum total chair 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
| Net weight | 18 kg | |
|---|---|---|
| Maximum user weight capacity | 150 kg | |
| Seat foam density | 55 kg/m³ | |
| Seat foam rebound rate | 45 % | |
| Recommended daily usage duration | 8 hours | |
| Seat height adjustment stroke | 100 mm | |
| Maximum backrest tilt angle | 135 ° | |
| 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 |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest surface | Breathable light gray polyester mesh | |
|---|---|---|
| Seat cushion cover | Woven green fabric upholstery | |
| Seat cushion core | High-density molded polyurethane foam | |
| Chair frame | White reinforced polypropylene | |
| Five-star base | White powder-coated steel | |
| Arm pads | Padded soft polyurethane surface | |
| Casters | Black polyurethane tread with nylon hub | |
| Gas lift cylinder | Class 3 steel cylinder | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board | |
| Backrest Internal Frame Thickness | 14 mm bent plywood/composite reinforced frame | |
| Tilt Mechanism Plate Thickness | 2.5 mm cold-rolled steel | |
| 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 adjustment via under-seat lever, 100mm stroke | |
|---|---|---|
| Backrest tilt and lock | Synchronized tilt with single-position upright lock, tension adjustable | |
| Headrest adjustment | Height and angle adjustable to support neck position | |
| Armrest adjustment | Height-adjustable arm pads set to 180mm above seat | |
| 360-degree swivel | Full 360° rotation around gas lift axis for multi-directional access | |
| Mobility function | Dual-wheel casters roll smoothly on hard and carpeted floors | |
| Lumbar support | Contoured mesh back provides built-in mid-back lumbar support | |
| 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 workspace | Open-plan or private office workstations for administrative and professional staff | |
|---|---|---|
| Home office setup | Residential home work areas for remote work and daily study | |
| Conference room use | Meeting and conference room seating for multi-hour collaborative sessions | |
| Co-working space | Shared flexible workspaces with multi-user adjustable requirements | |
| Studio and creative space | Design studio and creative workspace requiring flexible swivel access | |
| 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 furniture office chairs safety | EN 1335:2018 | |
|---|---|---|
| Office furniture office chairs dimensions | EN 1335:2020 |
US and Canada office-furniture standards
| Office chairs general purpose tests | ANSI/BIFMA X2017 | |
|---|---|---|
| Caster rolling durability cycles | 100000 cycles |
Standards applicable to China-market projects
| Office chair strength and durability | GB/T 10357.2 | |
|---|---|---|
| Office chair safety requirements | GB 28007 |
This product must meet the following technical requirements: 1. Office chair strength and durability: GB/T 10357.2; 2. Office chair safety requirements: GB 28007; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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