| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 670 x 700 x 1205 mm | |
|---|---|---|
| Five-star base diameter | 700 mm | |
| Seat width | 505 mm | |
| Seat depth | 460 mm | |
| Seat height range (from floor) | 530 mm | |
| Backrest width | 430 mm | |
| Headrest width | 315 mm | |
| Headrest height adjustment travel | 60 mm | |
| Backrest height (from seat) | 570 mm | |
| Armrest height range (from seat) | 255 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
| Net weight | 20 kg | |
|---|---|---|
| Maximum recommended static load | 200 kg | |
| Gas lift service cycle rating | 120000 cycles | |
| Caster rolling durability | 120000 cycles | |
| Mesh upholstery abrasion resistance | 50000 Martindale cycles | |
| Recommended user height range | 1850 mm | |
| Seat foam density | 55 kg/m³ | |
| Seat foam thickness | 80 mm | |
| Warranty period | 36 months | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest upholstery | Breathable black polyester tension mesh | |
|---|---|---|
| Backrest frame | Reinforced black polypropylene structural frame | |
| Seat cushion core | High-density cold-cured molded foam | |
| Seat outer shell | Black molded polypropylene seat pan | |
| Armrest pads | Soft-touch padded polyurethane contact surface | |
| Armrest supports | Reinforced polypropylene height-adjustable uprights | |
| Five-star base | Silver-finish metallic alloy (chrome steel or aluminum) | |
| Gas lift cylinder | Chrome-plated steel nitrogen-filled cylinder | |
| Casters | Black polyurethane tread dual-wheel casters | |
| Headrest | Breathable black mesh on curved PP frame | |
| Upholstery seam stitch pitch | 8 mm | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board |
Adjustment / rotation / tilt / mobility / storage features
| Seat height adjustment | Pneumatic height adjustment via Class 3 gas lift, 85 mm travel | |
|---|---|---|
| Headrest adjustment | Vertical height adjustment with 60 mm upward travel | |
| Armrest adjustment | Vertical height adjustment with 80 mm travel to align with desk surfaces | |
| Swivel function | 360-degree full rotation around central gas lift axis | |
| Recline function | Synchro-tilt backrest recline with 135-degree maximum lock angle | |
| Tilt tension control | Knob-adjustable recline tension to match user weight | |
| Mobility function | Smooth-rolling dual-wheel casters for use on hard or carpeted floors | |
| Lumbar support | Contoured integrated lumbar support zone in mid-back mesh | |
| 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 office workstations | Suitable for 8-hour daily work with full adjustability for varied user heights | |
|---|---|---|
| Home office study spaces | Compact footprint fits standard desk setups with breathable comfort for extended use | |
| Conference and meeting rooms | Professional neutral appearance, swivel and mobility support collaborative discussion | |
| IT and creative studio workspaces | Ergonomic support reduces fatigue during long focused work sessions | |
| Shared hot-desking environments | Quick, tool-free adjustability adapts to different users across shifts | |
| Manager and executive private offices | Professional styling with premium adjustability for senior workspace use | |
| 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 work chair dimensional, safety and strength requirements for EU market procurement | |
|---|---|---|
| EN 1335-2:2018 | Applies to mechanical safety requirements including stability and durability for office chairs | |
| EN 1335-3:2009 | Applies to test methods for verifying structural and functional performance of office chairs |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applies to general-purpose office chair performance, durability and safety requirements for North American procurement |
|---|
Standards applicable to China-market projects
| GB/T 3326-2016 | Applies to office chair dimensional, material and structural strength requirements for domestic procurement | |
|---|---|---|
| GB/T 10357.2-2013 | Applies to static load and durability testing of chair seats, backs and armrests |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applies to office chair dimensional, material and structural strength requirements for domestic procurement; 2. GB/T 10357.2-2013: Applies to static load and durability testing of chair seats, backs and armrests; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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