| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 1800 x 740 x 850 mm | |
|---|---|---|
| Per-seat usable width | 500 mm | |
| Seat height from floor | 450 mm | |
| Seat usable depth | 505 mm | |
| Backrest height above seat | 400 mm | |
| Armrest height above floor | 620 mm | |
| Gap between adjacent seats | 79 mm | |
| End leg splay width | 680 mm | |
| Floor glide diameter | 50 mm | |
| Beam cross-section size | 80 x 40 mm | |
| Seat pan front edge radius | 15 mm | |
| Perforation hole diameter | 6 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
| Per-seat static load capacity | 150 kg | |
|---|---|---|
| Net weight of fully assembled unit | 42 kg | |
| Recommended maximum user weight per seat | 120 kg | |
| Surface corrosion resistance life | 5 years | |
| Weld joint static failure load | 2000 N | |
| 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 | |
| Five-star Base Static Load Reference | Acceptance target ≥120 kg; chair reference load 150 kg | |
| Caster Rolling Durability Reference | Acceptance target 30000 cycles |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back panels | 1.5mm perforated cold-rolled steel, silver powder coated | |
|---|---|---|
| Support beam frame | 2.0mm thick Q235 cold-rolled rectangular steel tube, anti-rust treated | |
| Outboard armrests | 1.2mm thick die-cast aluminum alloy, polished silver finish | |
| Leg supports | Die-cast aluminum alloy splayed legs, chrome-plated finish | |
| Connection brackets | 4mm thick stamped steel plates, powder coated | |
| Floor glides | Non-slip adjustable rubber pads with steel threaded stems | |
| Surface treatment | Electrostatic polyester powder coating, lead-free, deburred edges | |
| Weld joints | CO2 shielded arc welding, smooth ground finish, no exposed sharp edges | |
| 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
| Seat structure | Fixed rigid seat pans with rolled front edge, no recline or height adjustment | |
|---|---|---|
| Backrest function | Fixed slightly angled perforated backrests for upright support and breathability | |
| Armrest function | Curved outboard armrests for entry/exit support, no intermediate dividers between seats | |
| Leveling function | Threaded adjustable rubber glides for stable placement on uneven hard floors | |
| Configuration flexibility | Modular beam design compatible with 2/4/5 seat extensions by swapping beam length | |
| Accessory compatibility | Pre-drilled mounting points for optional add-on PU seat cushions or side tables | |
| Ventilation performance | Uniform perforated hole pattern on seats and backs to reduce heat buildup | |
| 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
| Airport terminal waiting areas | Durable metal construction withstands high daily passenger traffic | |
|---|---|---|
| Hospital and clinic waiting zones | Perforated metal surface allows easy cleaning and disinfection | |
| Bank and service hall reception areas | Sleek silver finish complements formal public service interior design | |
| Railway and bus station concourses | Fixed rigid structure resists vandalism and heavy impact in high-traffic transit spaces | |
| School administration and lobby areas | Low-maintenance metal finish reduces upkeep cost for high-use student areas | |
| Indoor public corridor rest points | Compact 3-seat footprint fits narrow public walkway rest zones | |
| 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 | Strength, durability and safety standard for non-domestic public seating | |
|---|---|---|
| EN 1022:2018 | Seating stability test standard applicable to fixed gang bench seating |
US and Canada office-furniture standards
| North America procurement and testing reference | ANSI/BIFMA X5.4 Public and Lounge Seating |
|---|
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements applicable to metal furniture for general use | |
|---|---|---|
| GB/T 10357.3-2013 | Test standard for seating strength and durability applicable to public seats | |
| GB 18584-2001 | Limit of harmful substances applicable to indoor furniture metal finishes |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements applicable to metal furniture for general use; 2. GB/T 10357.3-2013: Test standard for seating strength and durability applicable to public seats; 3. GB 18584-2001: Limit of harmful substances applicable to indoor furniture metal finishes; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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