| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall assembled dimensions | 690 x 686 x 1350 mm | |
|---|---|---|
| Five-star base diameter | 350 mm | |
| Caster diameter | 60 mm | |
| Seat height adjustment range upper endpoint | 520 mm | |
| Seat pan width | 510 mm | |
| Seat pan depth | 500 mm | |
| Backrest height from seat surface | 800 mm | |
| Headrest adjustment travel (height/angle/depth) | 60 mm / 35° / 40 mm | |
| Armrest height adjustment travel | 80 mm | |
| Extended footrest length from seat front | 320 mm | |
| Knee clearance under seat (lowest height) | 150 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 reference upper limit | 19.5 kg | |
|---|---|---|
| Maximum recommended user weight | 204 kg | |
| Seat foam density | 45 kg/m³ | |
| Seat foam thickness | 60 mm | |
| Backrest frame static load capacity | 120 kg | |
| Five-star base static load rating | 1136 kg | |
| Gas lift durability cycles | 120000 cycles | |
| Caster rolling durability cycles | 300000 cycles | |
| Mesh upholstery abrasion resistance | 50000 Martindale rubs | |
| Seam stitching pitch | 8 mm |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest upholstery | Breathable geometric-patterned polyester mesh | |
|---|---|---|
| Seat upholstery | Matching geometric mesh over high-density resilient foam | |
| Headrest upholstery | Padded mesh-covered cushion with internal foam core | |
| Armrest pads | Soft molded PU padded tops on PA/nylon support brackets | |
| Internal support frame | Reinforced nylon and steel seat/back frame | |
| Five-star base | Powder-coated heavy-duty steel five-prong base | |
| Casters | Dual-wheel silent PU/nylon swivel casters with metal axles | |
| Gas lift cylinder | SGS-certified Class 4 steel gas lift with powder-coated finish | |
| Recline mechanism | Thick-gauge steel multi-lock tilt chassis under seat | |
| Retractable footrest | Mesh-padded steel frame footrest with sliding track | |
| Hardware components | Zinc-plated steel bolts, adjustment levers and locking hardware | |
| 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 side lever, 100mm stroke from Class 4 gas lift | |
|---|---|---|
| Multi-position backrest recline | Lockable recline from 90° upright to 135° reclined, with adjustable tilt tension | |
| 3D adjustable armrests | Height, width, and pivot adjustment with padded PU tops to support forearms | |
| Multi-axis adjustable headrest | Height, angle, and depth adjustment to support neck and cervical spine | |
| Retractable pull-out footrest | Slides out from under seat to support lower legs during reclined rest | |
| Adaptive lumbar support | Contoured mesh back zone that flexes to support natural lower back curve | |
| Smooth rolling mobility | Dual-wheel casters roll freely on hard floors and low-pile carpet | |
| Tilt tension control | Under-seat knob adjusts recline resistance to match user weight | |
| Backrest recline upper angle | 135° | |
| 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 office workspace | Suitable for daily 8+ hour desk work, with ergonomic support for long seated tasks | |
|---|---|---|
| Home office setup | Fits compact home workspaces, with recline and footrest for short work breaks | |
| Open-plan task workstations | Suitable for shared commercial office environments, durable construction for multi-user use | |
| Coworking spaces | Adjustable features accommodate a wide range of user body sizes and sitting preferences | |
| Study and gaming spaces | Recline function and footrest support both focused study and casual computer/gaming use | |
| Conference room secondary seating | Appropriate for meeting rooms where extended seated discussion occurs | |
| 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 | Applicable European standard for office chair dimensional safety requirements, reference for ergonomic fit | |
|---|---|---|
| EN 1335-2:2018 | Applicable European standard for office chair strength, durability and stability, reference for performance testing | |
| EN 1022:2018 | Applicable European standard for seating stability determination, reference for tip resistance verification |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applicable BIFMA standard for general-purpose office chairs, reference for base, back, and caster load tests |
|---|
Standards applicable to China-market projects
| GB/T 35607-2017 | Applicable standard for green product evaluation of office furniture, reference for low-VOC material requirements | |
|---|---|---|
| GB/T 10357.2-2013 | Applicable test standard for chair mechanical stability, reference for structural safety verification | |
| GB/T 10357.3-2013 | Applicable test standard for chair strength and durability, reference for load cycle verification |
This product must meet the following technical requirements: 1. GB/T 35607-2017: Applicable standard for green product evaluation of office furniture, reference for low-VOC material requirements; 2. GB/T 10357.2-2013: Applicable test standard for chair mechanical stability, reference for structural safety verification; 3. GB/T 10357.3-2013: Applicable test standard for chair strength and durability, reference for load cycle verification; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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