| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions (W x D x H) | 590 x 760 x 1000 mm | |
|---|---|---|
| Center-to-center seat spacing | 590 mm | |
| Seat height from floor | 450 mm | |
| Seat cushion usable depth | 460 mm | |
| Seat inner usable width | 505 mm | |
| Backrest total height | 550 mm | |
| Armrest height from floor | 660 mm | |
| Armrest surface width | 80 mm | |
| Extended writing tablet dimensions | 265 x 252 mm | |
| Writing tablet height from floor | 611 mm | |
| Floor mount foot plate length | 350 mm | |
| Fixing hole center spacing per foot | 290 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 net weight | 35 kg | |
|---|---|---|
| Recommended static user load | 150 kg | |
| Seat foam density | 55 kg/m³ | |
| Backrest foam density | 60 kg/m³ | |
| Foam rebound rate | 60% | |
| Fabric abrasion resistance | 50000 cycles | |
| Seat tip-up mechanism cycle life | 100000 cycles | |
| Writing tablet static load capacity | 15 kg | |
| Structure warranty period | 5 years | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% |
Core acceptance fields · Panels / hardware / frame / upholstery
| Upholstery fabric | Wear-resistant treated polyester fabric | |
|---|---|---|
| Seat cushion foam | 55kg/m³ cold-cured high-density polyurethane foam | |
| Backrest foam | 60kg/m³ cold-cured high-density polyurethane foam | |
| Armrest caps | 30mm thick solid beech/oak wood, multi-layer painted finish | |
| Support frame/legs | 2.5mm thick cold-rolled steel tube, powder-coated matte finish | |
| Internal seat/back panel | 15mm thick multi-layer molded hardwood plywood | |
| Writing tablet | 15mm thick one-piece molded black PP, aluminum alloy folding bracket | |
| Arm support base | 2.0mm thick cold-rolled steel plate with aluminum connection brackets | |
| Side trim panels | Fabric-upholstered panels with matching wood edge trim | |
| Mounting hardware | Galvanized steel expansion bolts, 4 bolts per seat | |
| 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
| Tip-up seat mechanism | Spring-damper automatic quiet return, seat folds vertically when unoccupied | |
|---|---|---|
| Retractable writing tablet | Fold-out anti-panic design, rotates into armrest storage when not in use | |
| Floor mounting system | Permanent bolted installation to venue floors/risers, no rocking or movement | |
| Back support design | Contoured split-padding design with built-in lumbar and upper back support | |
| Row compatibility | Modular design allows linking into continuous straight or curved rows | |
| Noise damping | Integrated rubber buffers on seat and tablet pivot points to reduce operational noise | |
| Seat access clearance | 90mm minimum knee clearance when seat is in upright folded position | |
| 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
| University lecture halls | Fixed row seating with writing tablet supports note-taking and long class sessions | |
|---|---|---|
| Corporate conference auditoriums | Professional grey finish with wood trim fits formal presentation spaces | |
| Theater and performance venues | Tip-up seat design provides clear passage and unobstructed sightlines | |
| Government meeting halls | Durable fixed structure meets high-traffic public facility usage requirements | |
| Training center classrooms | Retractable tablet provides flexible workspace for seminar and training activities | |
| 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 13761:2002 | Performance and safety requirement for auditorium and public seating | |
|---|---|---|
| EN 1021-1:2014 | Upholstered furniture flammability resistance to smouldering cigarette | |
| EN 1021-2:2014 | Upholstered furniture flammability resistance to match flame ignition |
Standards applicable to China-market projects
| GB 20286-2006 | Flame retardant requirement for upholstered furniture in public assembly venues | |
|---|---|---|
| GB/T 3324-2017 | General technical specification for wooden furniture applicable to wood armrest components | |
| GB/T 3325-2017 | General technical specification for metal furniture applicable to steel frame structure |
This product must meet the following technical requirements: 1. GB 20286-2006: Flame retardant requirement for upholstered furniture in public assembly venues; 2. GB/T 3324-2017: General technical specification for wooden furniture applicable to wood armrest components; 3. GB/T 3325-2017: General technical specification for metal furniture applicable to steel frame structure; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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