| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 720 x 720 x 1420 mm | |
|---|---|---|
| Seat height adjustment range | 620 mm | |
| Seat width | 530 mm | |
| Seat depth | 490 mm | |
| Backrest height | 790 mm | |
| Backrest width | 505 mm | |
| Headrest height travel | 70 mm | |
| Armrest height adjustment range | 80 mm | |
| Five-star base diameter | 700 mm | |
| Caster diameter | 50 mm | |
| Footrest extension length | 150 mm | |
| Seat depth adjustment travel | 50 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 | 22.7 kg | |
|---|---|---|
| Maximum recommended user weight | 250 kg | |
| Suitable user height range | 1900 mm | |
| Five-star base static load rating | 1136 kg | |
| Caster rolling durability | 100000 cycles | |
| Mesh upholstery abrasion resistance | 50000 Martindale cycles | |
| Standard warranty period | 3 years | |
| 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 |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back upholstery | High-elastic woven polyester mesh | |
|---|---|---|
| Structural frame | Light grey fiberglass-reinforced nylon polymer | |
| Five-star base | Polished die-cast aluminum alloy | |
| Gas lift column | Chrome-plated steel Class 4 gas lift | |
| Armrest pads | Soft matte PU surface over rigid polymer core | |
| Retractable footrest | Reinforced polymer frame with textured mesh contact pad | |
| Casters | Soft polyurethane tread on nylon wheel core | |
| Chassis mechanism | 3mm thick stamped steel tilt plate | |
| Seat support webbing | High-tension elastic woven webbing under mesh seat | |
| Seam and edge binding | Woven polyester edge tape with 8mm stitch pitch | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board | |
| Backrest Internal Frame Thickness | 14 mm bent plywood/composite reinforced frame |
Adjustment / rotation / tilt / mobility / storage features
| Seat height adjustment | Pneumatic lever-operated height adjustment with 190mm travel | |
|---|---|---|
| Backrest recline function | Lockable tilt up to 140 degrees with 3 fixed lock positions | |
| Headrest adjustment | 2D adjustable with 70mm height travel and 70° angle rotation | |
| Lumbar support adjustment | Dynamic height and depth adaptive support | |
| Armrest adjustment | 4D multi-directional adjustment with height, width, depth and pivot | |
| Retractable footrest operation | Sliding pull-out footrest that locks in extended position | |
| Swivel function | 360-degree full rotation around central gas lift axis | |
| Seat depth adjustment | Sliding seat pan with 50mm forward/back travel | |
| Tilt tension control | User-adjustable tilt resistance via under-seat rotary knob | |
| Flip-up armrest option | Armrests pivot vertically 90 degrees to slide under desk | |
| Recline Angle / Lock Reference | 125° with 3suggested lock positions | |
| Tilt Tension User-weight Range | Reference adjustment coverage 120 kg |
Verified carton / gross weight / assembly / loading data
| Shipping carton dimensions | 900 x 750 x 450 mm | |
|---|---|---|
| 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-hour seated work from home with breathable mesh support | |
|---|---|---|
| Corporate open office workstations | Matches professional light grey office aesthetic for commercial workspaces | |
| Executive private offices | High-back ergonomic support for senior staff daily office use | |
| Co-working shared spaces | Durable construction and adjustable fit accommodates diverse users | |
| Gaming and hobby workstations | Recline function and footrest support extended seated leisure use | |
| Meeting room task seating | 360° swivel and adjustability supports collaborative meeting activities | |
| 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 performance requirements | |
|---|---|---|
| EN 1335-2:2018 | Applies to mechanical strength, stability and durability test standards | |
| EN 1335-3:2009 | Applies to test methods for structural and safety verification of office chairs |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applies to general-purpose office chair safety, durability and structural performance | |
|---|---|---|
| ANSI/BIFMA X5.11-2015 | Applies to load rating verification for large-user office seating applications | |
| Gas lift cycle durability | 120000 cycles |
Standards applicable to China-market projects
| GB/T 3326-2016 | Applies to office chair dimensional stability and size measurement standards | |
|---|---|---|
| GB/T 10357.2-2013 | Applies to mechanical performance test methods for chair seating durability | |
| GB 28007-2011 | Applies to strength, durability and stability requirements for office swivel chairs |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applies to office chair dimensional stability and size measurement standards; 2. GB/T 10357.2-2013: Applies to mechanical performance test methods for chair seating durability; 3. GB 28007-2011: Applies to strength, durability and stability requirements for office swivel chairs; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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