| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 650 x 680 x 1310 mm | |
|---|---|---|
| Seat width | 505 mm | |
| Seat depth | 440 mm | |
| Seat cushion thickness | 70 mm | |
| Backrest height | 740 mm | |
| Seat height adjustment range maximum | 540 mm | |
| Armrest height above seat maximum | 250 mm | |
| Five-star base diameter | 680 mm | |
| Overall arm height from floor maximum | 710 mm | |
| Headrest included height extension | 1310 mm | |
| Minimum overall front-facing height | 1275 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 per unit | 18 kg | |
|---|---|---|
| Maximum recommended static load | 150 kg | |
| Recommended user height range maximum | 195 cm | |
| Maximum recline angle | 120 degrees | |
| Seat foam density | 60 kg/m³ | |
| Foam compression set | 10% | |
| Mesh upholstery abrasion resistance | 30000 Martindale cycles | |
| Caster rolling durability | 100000 cycles | |
| Warranty period | 5 years | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest upholstery | Tensioned breathable polyester mesh | |
|---|---|---|
| Back frame | Reinforced black PA nylon plastic | |
| Seat cushion core | High-density molded polyurethane foam | |
| Seat upholstery | Woven polyester fabric in coral pink finish | |
| Armrests | Height-adjustable padded polypropylene armrests | |
| Gas lift cylinder | Class 3 steel pneumatic cylinder | |
| Five-star base | Reinforced black nylon composite | |
| Casters | 60mm diameter dual-wheel PU casters | |
| Seat inner support | 12mm thick plywood seat pan | |
| Tilt mechanism | 2.5mm thick steel chassis | |
| Headrest pad | Padded curved PU foam with fabric cover | |
| Lumbar support pad | Contoured padded plastic support |
Adjustment / rotation / tilt / mobility / storage features
| Seat height adjustment | Pneumatic gas lift adjusts seat height 85mm via under-seat lever | |
|---|---|---|
| Backrest tilt function | Synchro-tilt mechanism with 3-position lock and tension adjustment | |
| Swivel function | 360-degree full rotation around central gas lift column | |
| Headrest adjustment | Height and angle adjustable curved headrest for neck support | |
| Lumbar support adjustment | Height-adjustable contoured lumbar pad for lower back support | |
| Caster mobility | Dual-wheel casters roll freely on carpet and hard flooring, 360-degree swivel | |
| Tilt tension control | Knob-adjustable tilt resistance to match user body weight | |
| 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
| Home office workspace | Suitable for long-hour desk work with breathable back for residential use | |
|---|---|---|
| Corporate open office stations | Commercial-grade adjustment features for shared employee workstations | |
| Private executive offices | High-back support and adjustment range for private managerial workspaces | |
| Co-working space desks | Durable construction and universal adjustment for rotating user bases | |
| Conference meeting rooms | 360 swivel and mobility for collaborative meeting table arrangements | |
| Student study desks | Adjustable height to fit teen and adult users for homework and study | |
| 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 chairs safety and strength dimensional requirements | |
|---|---|---|
| EN 1335-2:2018 | Office furniture office chairs safety structural performance requirements | |
| EN 1335-3:2009 | Office furniture office chairs test methods for stability and durability |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Office chairs general purpose safety, durability, and structural performance standard | |
|---|---|---|
| ANSI/BIFMA X5.11-2015 | Office chairs for large occupants up to 159kg static load rating |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden furniture for internal seat pan components | |
|---|---|---|
| GB 18584-2001 | Indoor decorating materials limit of harmful substances for furniture components |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture for internal seat pan components; 2. GB 18584-2001: Indoor decorating materials limit of harmful substances for furniture components; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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