| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall assembled dimensions | 680 x 740 x 1230 mm | |
|---|---|---|
| Seat depth | 500 mm | |
| Maximum seat height from floor | 555 mm | |
| Minimum seat height from floor | 490 mm | |
| Backrest height from seat surface | 600 mm | |
| Maximum backrest width | 680 mm | |
| Headrest dimensions | 295 x 50 mm | |
| Armrest height above seat surface (max) | 235 mm | |
| Five-star base wheel-to-wheel diameter | 740 mm | |
| Headrest maximum height from seat surface | 715 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
| Maximum user weight capacity | 150 kg | |
|---|---|---|
| Net product weight | 23 kg | |
| Seat foam density | 40 kg/m³ | |
| Backrest mesh abrasion resistance | 60000 double rubs | |
| Caster rolling durability rating | 100000 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 | |
| Gas-lift Cycling Reference | Acceptance target 100000 cycles |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest upholstery | Reinforced breathable woven polyester mesh | |
|---|---|---|
| Seat cushion core | 40 density high-resilience molded polyurethane foam | |
| Seat surface upholstery | Breathable mesh overlay over foam core | |
| Five-star base | Polished die-cast aluminum alloy, 2mm wall thickness | |
| Armrest pads | Soft polyurethane padded tops on rigid plastic support frames | |
| Caster wheels | 50mm diameter polyurethane tread with nylon inner hubs | |
| Gas lift cylinder | Class 3 carbon steel, 65mm stroke, chrome plated finish | |
| Recline mechanism | 3mm thick steel plate synchro-tilt chassis with tension control | |
| Internal back frame | Glass fiber reinforced nylon, 4mm rib thickness | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board | |
| Backrest Internal Frame Thickness | 14 mm bent plywood/composite reinforced frame | |
| Tilt Mechanism Plate Thickness | 2.5 mm cold-rolled steel |
Adjustment / rotation / tilt / mobility / storage features
| Pneumatic seat height adjustment | 65mm vertical travel operated by side lever under seat | |
|---|---|---|
| Backrest tilt function | 125° maximum recline angle with 4-position lockable positions | |
| Tilt tension adjustment | Rotating knob under seat to adjust recline resistance for user weight | |
| Headrest adjustment | 45° tilt angle and 65mm vertical travel for neck support | |
| 360° swivel function | Full rotation around central gas lift axis for multi-directional access | |
| Lumbar support zone | Contoured adaptive mesh support that flexes with user movement | |
| Smooth mobility | Five dual-wheel casters for movement across carpet and hard flooring | |
| 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
| Corporate open-plan workstations | Suitable for 8-hour daily desk work with ergonomic posture support | |
|---|---|---|
| Home office and remote work spaces | Compact footprint fits standard home desk setups without excess space | |
| Executive private offices | Professional mesh finish and adjustable features suit management workspaces | |
| Co-working and shared office spaces | Adjustable features accommodate users of varying heights and weights | |
| Conference and meeting rooms | Swivel and tilt functionality supports collaborative meeting interaction | |
| 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 dimensional and safety requirements for office work chairs | |
|---|---|---|
| EN 1335-2:2018 | Applies to strength, durability and stability performance requirements | |
| EN 1021-1:2014 | Applies to upholstery fire resistance for smoldering cigarette ignition |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applies to general-purpose office chair safety and performance testing | |
|---|---|---|
| Gas lift service cycle rating | Recommended references: BIFMA X5.1 | |
| Five-star base static load capacity | 1136 kg |
Standards applicable to China-market projects
| GB/T 3326-2016 | Applies to size measurement and dimension tolerances for office chairs | |
|---|---|---|
| GB/T 35607-2017 | Applies to stability, strength and durability requirements for office chairs | |
| GB 18584-2001 | Applies to formaldehyde and heavy metal emission limits for furniture materials |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applies to size measurement and dimension tolerances for office chairs; 2. GB/T 35607-2017: Applies to stability, strength and durability requirements for office chairs; 3. GB 18584-2001: Applies to formaldehyde and heavy metal emission limits for furniture materials; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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