| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 650 x 650 x 1200 mm | |
|---|---|---|
| Seat width | 500 mm | |
| Seat depth | 500 mm | |
| Maximum seat height from floor | 520 mm | |
| Minimum seat height from floor | 430 mm | |
| Backrest height | 700 mm | |
| Headrest dimensions | 320 x 180 mm | |
| Five-star base span diameter | 700 mm | |
| Armrest height above seat (highest position) | 220 mm | |
| Caster diameter | 60 mm | |
| Seat cushion thickness | 76 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 chair weight | 18 kg | |
|---|---|---|
| Maximum recommended user weight | 136 kg | |
| Maximum static base load | 907 kg | |
| Caster rolling durability | 300000 cycles | |
| Recline maximum angle | 135° | |
| Gas lift vertical stroke | 100 mm | |
| Seam stitching pitch | 8 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 |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest upholstery | Light gray breathable polyester mesh | |
|---|---|---|
| Seat cushion core | 45 kg/m³ high-resilience injection molded foam | |
| Seat upholstery | Light gray woven polyester fabric over foam | |
| Structural frame | White reinforced polypropylene (PP) plastic | |
| Five-star base | White reinforced nylon with molded structural ribs | |
| Central support column | Black powder-coated steel Class 3 gas lift | |
| Armrest pads | Soft PU padded fixed-height adjustable supports | |
| Casters | Dual-wheel PU-coated nylon casters with white accents | |
| Internal seat support plate | 12 mm thick molded plywood under seat foam | |
| Tilt mechanism chassis | 2.5 mm thick stamped steel with tension adjustment | |
| 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
| Height adjustment | Pneumatic Class 3 gas lift operated by side lever, 100 mm vertical travel | |
|---|---|---|
| Swivel function | 360-degree full rotation around central gas lift column | |
| Recline function | Synchronized tilt with single-position lock, tension adjustment knob for user weight | |
| Headrest support | Padded mesh headrest with 70 mm height adjustment and 30° angle tilt | |
| Armrest adjustment | Height-adjustable armrests with 70 mm vertical travel, fixed horizontal position | |
| Mobility function | Five dual-wheel casters for smooth rolling on hard and carpeted floors | |
| Lumbar support | Contoured mesh back with built-in fixed lumbar curvature for lower back 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
| Private office workspace | Suitable for individual executive and administrative workstations requiring all-day seated support | |
|---|---|---|
| Home office setup | Appropriate for residential study and remote work desks with standard 750 mm work height | |
| Open plan task workstations | Suited for shared office pod deployments with neutral light gray/white aesthetic | |
| Study and computer lab environments | Usable for student study rooms and public computing stations with durable construction | |
| 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 requirement | EN 1335:2018 | |
|---|---|---|
| Office chair dimensional requirement | EN 1335:2020 |
US and Canada office-furniture standards
| Office chair general purpose standard | ANSI/BIFMA X2017 | |
|---|---|---|
| Office caster durability standard | ANSI/BIFMA X2017Clause 12 |
Standards applicable to China-market projects
| Office chair safety structural requirement | GB/T 22792.2 | |
|---|---|---|
| Office chair dimensional fit requirement | GB/T 12985 |
This product must meet the following technical requirements: 1. Office chair safety structural requirement: GB/T 22792.2; 2. Office chair dimensional fit requirement: GB/T 12985; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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