| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 675 x 635 x 1270 mm | |
|---|---|---|
| Seat width | 500 mm | |
| Seat depth | 520 mm | |
| Maximum seat height from floor | 550 mm | |
| Backrest width | 460 mm | |
| Backrest height without headrest | 580 mm | |
| Headrest dimensions | 320 x 160 mm | |
| Armrest height above seat | 235 mm | |
| Five-star base diameter | 340 mm | |
| Caster diameter | 60 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
| Recommended maximum user weight | 136 kg | |
|---|---|---|
| Net weight | 17 kg | |
| Seat cushion foam density | 45 kg/m³ | |
| Seat foam thickness | 60 mm | |
| Mesh back abrasion resistance | 30000 Martindale rubs at 12kPa | |
| Seat fabric abrasion resistance | 50000 Martindale rubs at 12kPa | |
| Caster rolling durability | 100000 cycles | |
| Base static load capacity | 1136 kg | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest upholstery | Breathable high-stretch grey nylon mesh | |
|---|---|---|
| Seat upholstery | Woven grey polyester fabric over moulded foam | |
| Seat internal support | 12mm thick moulded plywood seat pan | |
| Structural frame | Light grey fibreglass-reinforced polypropylene | |
| Five-star base | Light grey reinforced nylon | |
| Arm pads | Soft TPU padded surfaces on rigid PP supports | |
| Casters | Dual-wheel PU casters with nylon cores | |
| Adjustment levers | Reinforced nylon with red accent caps | |
| Gas lift cylinder | Black powder-coated steel Class 3 gas lift | |
| 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
| Seat height adjustment | Pneumatic adjustment via right-side lever, 140mm travel stroke | |
|---|---|---|
| Tilt function | 3-position locking synchro tilt, up to 135° recline | |
| Swivel function | 360° smooth rotation around central gas lift | |
| Headrest adjustment | 2D adjustable, 40mm height travel and 30° angle rotation | |
| Lumbar support adjustment | Height-adjustable contoured lumbar pad, 40mm travel | |
| Armrest adjustment | Height-adjustable armrests, 60mm vertical travel | |
| Mobility function | Smooth rolling on all standard floor types via dual-wheel casters | |
| 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 home office use | Suitable for long hours of computer work at standard height desks | |
|---|---|---|
| Open-plan corporate workstation | Neutral grey design fits modern office interiors for employee seating | |
| Conference/meeting room use | Swivel and recline functions support collaborative meeting activities | |
| Co-working space deployment | Durable construction meets high-frequency shared-use requirements | |
| Student home study space | Adjustable features support proper posture for study and screen time | |
| Executive private office | High-back ergonomic support for extended executive desk work sessions | |
| 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 requirement validation | |
|---|---|---|
| EN 1335-2:2018 | Applies to office chair strength, durability and stability performance testing | |
| EN 1022:2018 | Applies to seating stability verification for domestic and contract use |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applies to general-purpose office chair safety and performance testing | |
|---|---|---|
| Gas lift durability | 120000 cycles |
Standards applicable to China-market projects
| GB/T 3326-2016 | Applies to desk chair dimensional accuracy and stability verification | |
|---|---|---|
| GB/T 10357.2-2013 | Applies to chair mechanical performance test for vertical static load | |
| GB/T 10357.3-2013 | Applies to chair backrest durability and fatigue testing |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applies to desk chair dimensional accuracy and stability verification; 2. GB/T 10357.2-2013: Applies to chair mechanical performance test for vertical static load; 3. GB/T 10357.3-2013: Applies to chair backrest durability and fatigue testing; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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