| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 690 x 680 x 1190 mm | |
|---|---|---|
| Seat depth | 515 mm | |
| Seat height adjustment range | 535 mm | |
| Backrest height | 570 mm | |
| Headrest height adjustment travel | 70 mm | |
| Headrest width | 315 mm | |
| Armrest height above seat | 180 mm | |
| Five-star base diameter | 350 mm | |
| Caster diameter | 60 mm | |
| Seat width | 500 mm | |
| Upper back maximum width | 610 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 | 15 kg | |
|---|---|---|
| Recommended user weight capacity | 150 kg | |
| Tilt mechanism cycle durability | 300000 cycles | |
| Seat foam density | 45 kg/m³ | |
| Seat foam rebound rate | 55% | |
| Mesh fabric abrasion resistance | 60000 cycles | |
| 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 |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest upholstery | High-elastic breathable polyester mesh | |
|---|---|---|
| Backrest frame | Reinforced PA nylon with 20% fiberglass | |
| Seat cushion core | 45D high-density molded polyurethane foam | |
| Seat base support | 12mm thick plywood with PP dust cover | |
| Armrests | Fixed integrated PP nylon loop armrests | |
| Five-star base | 3mm thick reinforced injection-molded nylon | |
| Gas lift | Class 3 carbon steel gas lift, 50mm outer diameter | |
| Casters | 60mm diameter PU soft tread casters | |
| Lumbar support structure | Molded PP ergonomic lumbar support pad | |
| Headrest upholstery | Breathable polyester mesh matching backrest | |
| Seat upholstery | Breathable woven fabric over foam cushion | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board |
Adjustment / rotation / tilt / mobility / storage features
| Seat height adjustment | Pneumatic 100mm travel via side lever, 535 mm seat height | |
|---|---|---|
| Headrest adjustment | 70mm vertical height adjustment for neck support | |
| Swivel function | 360-degree unlimited rotation around gas lift axis | |
| Tilt function | Lockable rear tilt with tension adjustment, up to 12-degree recline | |
| Mobility | Five dual-wheel casters for smooth rolling on hard floors and carpet | |
| Lumbar support | Contoured molded support aligned to lower back curve | |
| Arm support | Fixed height curved armrests for forearm support during typing | |
| Tilt tension control | User-adjustable tension knob to match user weight for recline | |
| Gas lift stroke | 100 mm | |
| 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 | Provides ergonomic support for 8-hour daily seated work tasks | |
|---|---|---|
| Home office spaces | Compact footprint fits standard home desk setups for remote work | |
| Executive private offices | Professional black finish complements formal office furniture layouts | |
| Conference meeting rooms | Swivel and mobility supports collaborative discussion around tables | |
| Student study spaces | Adjustable height accommodates teen to adult users for study sessions | |
| Hot-desking environments | Easy mobility and durable construction supports shared use | |
| 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 | Applies to office chair dimensional safety and functional requirements | |
|---|---|---|
| EN 1335-2:2018 | Applies to office chair strength, durability and stability testing | |
| EN 1335-3:2009 | Applies to office chair test methods for mechanical performance |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applies to general purpose office chair safety and durability requirements | |
|---|---|---|
| Caster rolling durability | 100000 cycles | |
| Static load capacity for five-star base | 1136 kg |
Standards applicable to China-market projects
| GB/T 3326-2016 | Applies to office chair dimensional measurement and tolerance verification | |
|---|---|---|
| GB/T 3324-2017 | Applies to general wooden/metal office furniture mechanical performance requirements | |
| GB 18584-2001 | Applies to interior decoration material hazardous substance limits for furniture |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applies to office chair dimensional measurement and tolerance verification; 2. GB/T 3324-2017: Applies to general wooden/metal office furniture mechanical performance requirements; 3. GB 18584-2001: Applies to interior decoration material hazardous substance limits for furniture; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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