| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall 3-seat unit dimensions | 1800 x 768 x 910 mm | |
|---|---|---|
| Single seat width | 600 mm | |
| Seat height from floor | 450 mm | |
| Seat depth | 450 mm | |
| Backrest height above seat | 430 mm | |
| Armrest height from floor | 620 mm | |
| PU seat/back panel thickness | 37 mm | |
| Armrest cross-section width | 60 mm | |
| Support leg splay width (per end) | 680 mm | |
| Leveling foot diameter | 50 mm | |
| Gap between adjacent seats | 79 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 per 3-seat unit | 29 kg | |
|---|---|---|
| Static load capacity per seat | 200 kg | |
| Recommended maximum simultaneous users | 3 adults | |
| PU surface abrasion resistance | 50000 cycles | |
| Surface impact resistance | 10 J impact rating | |
| Seat/back fastener loosening cycle rating | 50000 use cycles | |
| Leveling foot vertical adjustment range | 15 mm | |
| Load-bearing beam cross-section | 80 x 90 mm | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back shells | Integral self-skinning high-density polyurethane, cold-cure molded | |
|---|---|---|
| Internal seat/back reinforcement | 1.2 mm thick welded cold-rolled steel flat tube frame | |
| End armrests | Polished die-cast aluminum alloy, brushed silver finish | |
| End support legs | Die-cast aluminum alloy, polished chrome-tone finish, splayed outrigger design | |
| Load-bearing horizontal beam | 2.5 mm thick cold-rolled octagonal steel tube, powder-coated black | |
| Seat mounting brackets | 5.0 mm thick cold-rolled steel connecting clips | |
| Floor contact glides | Chrome-plated steel stem with non-marring rubber base pads | |
| Fastener hardware | Grade 8.8 zinc-plated steel screws and lock nuts | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board | |
| Backrest Internal Frame Thickness | 14 mm bent plywood/composite reinforced frame | |
| Gas-lift Engineering Specification | Recommended Class 4; outer tube 50 mm; stroke 100 mm | |
| Tilt Mechanism Plate Thickness | 2.5 mm cold-rolled steel |
Adjustment / rotation / tilt / mobility / storage features
| Seating configuration | Fixed three connected seats on shared central beam, no inter-seat dividers | |
|---|---|---|
| Floor installation | Freestanding design with adjustable leveling feet, no permanent floor anchoring required | |
| Surface cleaning compatibility | Seamless non-porous PU surface compatible with medical-grade disinfectant wipes | |
| Modular seat replacement | Individual seat/back units detach from beam via mounting clips without full disassembly | |
| Armrest support | Polished loop armrests provided at two outermost seats only, no intermediate armrests | |
| Structural stability | Splayed four-point outrigger leg base prevents tipping under uneven user loading | |
| Surface finish protection | Anti-oxidation nano-coating on aluminum legs prevents tarnish and corrosion | |
| Recline Angle / Lock Reference | 125° with 3suggested lock positions | |
| Tilt Tension User-weight Range | Reference adjustment coverage 120 kg | |
| Height Adjustment Stroke | 100 mm continuous travel | |
| 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
| Hospital clinic waiting areas | Disinfectant-compatible seamless surfaces meet medical space sanitation requirements | |
|---|---|---|
| Airport and railway station concourses | High-wear rigid construction withstands continuous high-volume passenger use | |
| Bank and government service lobbies | Neutral professional gray finish, high-density layout fits public service queuing zones | |
| School and public administration reception areas | Low maintenance, damage-resistant surfaces suit unsupervised high-traffic access | |
| Temporary public event seating | Freestanding repositionable design supports flexible event layout adjustments | |
| Bus terminal and ferry waiting halls | Corrosion-resistant metal frame works for high-humidity public transit environments | |
| 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 16139:2013 | Furniture: Strength, durability and safety for non-domestic seating, applicable to public use | |
|---|---|---|
| EN 1022:2018 | Furniture: Seating stability test method, applicable to freestanding gang seating | |
| EN 13722:2004 | Furniture: Test methods for surface resistance to wear, applicable to PU seat surfaces |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | General purpose office chairs: Static load and durability test, adapted for heavy public use | |
|---|---|---|
| ANSI/BIFMA X5.4-2012 | Lounge and public seating: Stability and structural performance requirements |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for metal furniture, applicable to frame structural integrity | |
|---|---|---|
| GB/T 35607-2017 | Green product evaluation standard for furniture, applicable to VOC limits for PU components | |
| GB/T 10357.2-2013 | Furniture mechanical test for chair/stool stability, applicable to anti-tip performance | |
| GB/T 10357.3-2013 | Furniture mechanical test for chair/stool strength and durability, applicable to static load testing |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for metal furniture, applicable to frame structural integrity; 2. GB/T 35607-2017: Green product evaluation standard for furniture, applicable to VOC limits for PU components; 3. GB/T 10357.2-2013: Furniture mechanical test for chair/stool stability, applicable to anti-tip performance; 4. GB/T 10357.3-2013: Furniture mechanical test for chair/stool strength and durability, applicable to static load testing; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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