| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 580 x 680 x 1300 mm | |
|---|---|---|
| Seat height from floor | 440 mm | |
| Seat usable width | 500 mm | |
| Seat usable depth | 450 mm | |
| Backrest total height above seat | 850 mm | |
| Headrest + upper back section height | 540 mm | |
| Backrest maximum width | 570 mm | |
| Five-star base overall diameter | 580 mm | |
| Armrest height above seat | 200 mm | |
| Seat front edge thickness | 80 mm | |
| Backrest padding thickness | 60 mm | |
| Finished Seat Cushion Thickness | 90 mm | |
| Lumbar Support Zone Height | 240 mm | |
| Clear Width Between Armrests | 540 mm |
Net weight / load capacity / users / durability
| Recommended maximum user weight | 159 kg | |
|---|---|---|
| Product net weight | 21 kg | |
| Caster rolling durability cycle rating | 40000 cycles | |
| Gas lift static load rating | 150 kg | |
| Seat cushion static load capacity | 160 kg | |
| Tilt mechanism maximum static load | 136 kg | |
| Seat foam density | 45 kg/m³ | |
| Cushion foam rebound rate | 55% | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat, back and headrest upholstery | 1.2 mm thick black polyurethane leather | |
|---|---|---|
| Seat and back padding core | Molded high-resilience polyurethane foam | |
| Side support shell and arm frame | Gloss white molded polypropylene structural shell | |
| Armrest contact surface | Black polyurethane padding matching seat upholstery | |
| Central lift column | Polished chrome-plated steel gas lift cylinder | |
| Five-star base | 1.5 mm thick polished chrome-plated steel | |
| Caster wheels | 60 mm diameter black polyurethane tread with chrome hub | |
| Tilt mechanism chassis | 2.5 mm thick powder-coated steel plate | |
| Internal seat support frame | 1.2 mm thick steel tube frame | |
| Upholstery seam stitch pitch | 8 mm | |
| 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 | 100 mm stroke via Class 3 gas lift, activated by side lever | |
|---|---|---|
| 360-degree swivel rotation | Full unobstructed rotation around central gas lift column | |
| Recline tilt function | 15-degree maximum backward tilt with single-position lock | |
| Tilt tension adjustment | Knob-controlled resistance tuning for user weight matching | |
| Smooth rolling mobility | Five dual-wheel casters for hard and soft floor surfaces | |
| Integrated fixed arm support | Curved padded armrests positioned at desk-working height | |
| Contoured head and neck support | Padded fixed headrest aligned for upright and reclined postures | |
| Lumbar support | Contoured mid-back curvature for lower back contact | |
| 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
| Executive private office use | High-back support for 8+ hour daily seated work for managers | |
|---|---|---|
| Home office workspace use | Modern two-tone aesthetic complements contemporary home interiors | |
| Conference room leadership seating | Formal professional appearance for boardroom and meeting spaces | |
| Adjustable desk compatibility | Height adjustment range pairs with 760 mm standard office desks | |
| Commercial co-working space use | Durable construction and neutral color suit shared premium work areas | |
| User size accommodation | Supports users up to 159kg with contoured full-back support | |
| 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 strength and stability | EN 1335:2018 | |
|---|---|---|
| Office chair ergonomic dimensional requirement | EN 1335:2020 | |
| Office chair caster durability requirement | EN 12529:2010 |
US and Canada office-furniture standards
| Office chair general purpose performance standard | ANSI/BIFMA X2017 | |
|---|---|---|
| Office chair caster performance requirement | ANSI/BIFMA X2017Clause 10 | |
| Office chair gas lift safety requirement | ANSI/BIFMA X2017Clause 8 |
Standards applicable to China-market projects
| Office chair strength and durability requirement | GB/T 22803 | |
|---|---|---|
| Upholstered furniture hazardous substance limit | GB 18587 | |
| Hardware surface corrosion resistance requirement | GB/T 3325 |
This product must meet the following technical requirements: 1. Office chair strength and durability requirement: GB/T 22803; 2. Upholstered furniture hazardous substance limit: GB 18587; 3. Hardware surface corrosion resistance requirement: GB/T 3325; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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