| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 770 x 760 x 1240 mm | |
|---|---|---|
| Seat width | 550 mm | |
| Seat depth | 500 mm | |
| Adjustable seat height range | 520 mm | |
| Backrest height | 800 mm | |
| Backrest width | 580 mm | |
| Seat cushion thickness | 130 mm | |
| Retractable footrest extension length | 420 mm | |
| Five-star base diameter | 700 mm | |
| Caster diameter | 60 mm | |
| Armrest height above seat | 200 mm | |
| Knee clearance under seat at lowest height | 150 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
| Product net weight | 45 kg | |
|---|---|---|
| Maximum recommended user weight | 227 kg | |
| Maximum recline angle from upright | 155 degrees | |
| Swivel rotation range | 360 degrees | |
| Gas lift height adjustment stroke | 80 mm | |
| Caster rolling durability | 100000 cycles | |
| Seat static load capacity | 1360 kg | |
| Standard warranty period | 3 years | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back upholstery | 1.2mm thick light taupe PU leather | |
|---|---|---|
| Lower side panel upholstery | Dark brown/black matching PU leather | |
| Seat cushion filling | 45kg/m³ high-density cold-cure foam | |
| Backrest filling | 35kg/m³ high-resilience foam | |
| Internal frame | 2.0mm thick welded steel tube frame | |
| Seat support board | 15mm thick E1 grade plywood | |
| Armrest structure | Padded PU wrapped base with polished hard wear-resistant top surface | |
| Five-star base | 2.5mm thick chrome-plated polished steel | |
| Casters | Nylon core with PU tread dual-wheel design | |
| Gas lift | Class 3 chrome-plated steel gas lift | |
| Recline mechanism | 3.0mm thick steel plate multi-position locking chassis | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board |
Adjustment / rotation / tilt / mobility / storage features
| Height adjustment | Pneumatic height adjustment via side lever, 80mm travel | |
|---|---|---|
| Recline function | Side-button activated infinite recline lock up to 155 degrees | |
| Retractable footrest | Sliding rail-mounted padded footrest extends 420mm for napping | |
| Swivel function | Smooth 360-degree horizontal swivel without directional lock | |
| Tilt tension adjustment | Knob-adjusted recline tension to match user body weight | |
| Caster mobility | Free-rolling dual-wheel casters suitable for hard wood and carpet floors | |
| Fixed armrest support | Wide fixed armrests with wear-resistant polished tops for forearm rest | |
| 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 | Suitable for manager and executive offices, provides professional appearance and nap functionality | |
|---|---|---|
| Home office study | Suitable for long-duration work from home with recline rest function | |
| Meeting and reception rooms | Suitable for VIP meeting spaces to provide high-level guest seating comfort | |
| Napping work environments | Suitable for offices requiring midday rest breaks via extended footrest and deep recline | |
| Hard-floored workspaces | Suitable for wood, tile and laminate floors due to soft PU casters | |
| Users up to 227kg | Suitable for big and tall users due to heavy-duty frame and load rating | |
| 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 | Office furniture - Office work chairs - Dimensions, applies to seat and clearance dimensions | |
|---|---|---|
| EN 1335-2:2018 | Office work chairs safety requirements for structural stability and strength validation | |
| EN 1335-3:2018 | Office work chairs test methods for mechanical durability validation | |
| EN 1022:2018 | Furniture seating stability test standard for reclined and upright positions |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | General-purpose office chairs standard for load, durability and safety testing | |
|---|---|---|
| ANSI/BIFMA e3-2019 | Furniture sustainability standard for material emission and content requirements |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden furniture, applicable to plywood seat support components | |
|---|---|---|
| GB/T 3325-2017 | Metal furniture general technical requirements, applicable to steel frame and base components | |
| GB 28007-2011 | Office chair safety and mechanical performance test methods for structural validation | |
| GB/T 19995.2-2005 | Upholstered furniture durability requirements for seat and back padding |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture, applicable to plywood seat support components; 2. GB/T 3325-2017: Metal furniture general technical requirements, applicable to steel frame and base components; 3. GB 28007-2011: Office chair safety and mechanical performance test methods for structural validation; 4. GB/T 19995.2-2005: Upholstered furniture durability requirements for seat and back padding; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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