| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions (W x D x H) | 670 x 700 x 1205 mm | |
|---|---|---|
| Seat width | 505 mm | |
| Seat depth | 460 mm | |
| Backrest height (above seat) | 570 mm | |
| Headrest width | 315 mm | |
| Backrest frame width | 430 mm | |
| Seat height adjustment range (floor to seat) | 530 mm | |
| Armrest height adjustment (above seat) | 80 mm | |
| Headrest vertical lift travel | 60 mm | |
| Five-star base radius (center to caster) | 350 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 static user load capacity | 150 kg | |
|---|---|---|
| Seat foam density | 65 kg/m³ | |
| Seat foam rebound rate | 40 % | |
| Mesh upholstery abrasion resistance | 30000 Martindale cycles | |
| Five-star base static load rating | 1360 kg | |
| Caster rolling durability | 120000 cycles | |
| Recline mechanism cycle durability | 120000 tilt cycles | |
| Net weight (assembled) | 22 kg | |
| Gas lift class rating | Class 3 | |
| Warranty period | 5 years |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest and headrest upholstery | Breathable woven polyester-nylon blend mesh | |
|---|---|---|
| Seat cushion core | Molded high-resilience polyurethane foam | |
| Seat support board | 12 mm thick molded plywood | |
| Back frame and armrest supports | Reinforced glass-fiber nylon polymer | |
| Armrest contact pads | Soft polyurethane (PU) padded surface | |
| Height adjustment gas lift | Chrome-plated precision steel tube | |
| Five-star base | Nylon-reinforced polymer with polished finish | |
| Casters | Dual-wheel hard/soft floor polyurethane casters | |
| Tilt mechanism plate | 3 mm thick stamped steel | |
| Seam pitch for upholstery edges | 8 mm | |
| 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 gas lift with 85 mm vertical travel | |
|---|---|---|
| Headrest adjustment | 60 mm vertical height adjustment with pivot angle tilt | |
| Armrest adjustment | 80 mm vertical height adjustment for arm support | |
| Backrest recline function | Synchronous tilt with 120° maximum recline and lock | |
| Lumbar support | Integrated contoured curved lumbar pad built into back mesh | |
| Swivel function | 360° full rotation around gas lift axis | |
| Mobility function | Smooth rolling on dual-wheel casters for hard and carpeted floors | |
| Waterfall seat edge design | Contoured front seat edge to reduce leg pressure | |
| Recline tension adjustment | Rotary knob to adjust tilt resistance for user weight | |
| 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 | For full-time office staff needing 8+ hour ergonomic seating support | |
|---|---|---|
| Open-plan workstation area | Rolling swivel design supports easy movement between adjacent work points | |
| Home office study space | Adjustable height and support fits varied user heights for home use | |
| Conference meeting room | Breathable mesh maintains comfort during long-duration meetings | |
| IT and desk-based task work | Lumbar support and adjustable armrests reduce strain during computer work | |
| Commercial co-working space | Durable commercial-grade construction supports high-frequency multi-user 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 | Applicable European standard for office chair dimensional safety requirements | |
|---|---|---|
| EN 1335-2:2018 | Applicable European standard for office chair strength, durability and safety | |
| EN 1335-3:2009 | Applicable European standard for office chair test methods |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applicable North American standard for office chair general performance testing |
|---|
Standards applicable to China-market projects
| GB/T 3326-2016 | Applicable standard for office furniture desk/chair dimension measurement and tolerance | |
|---|---|---|
| GB/T 10357.3-2013 | Applicable test standard for chair strength and durability evaluation | |
| GB 18584-2001 | Applicable indoor furniture formaldehyde emission limit for interior components |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applicable standard for office furniture desk/chair dimension measurement and tolerance; 2. GB/T 10357.3-2013: Applicable test standard for chair strength and durability evaluation; 3. GB 18584-2001: Applicable indoor furniture formaldehyde emission limit for interior components; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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