| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| 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
| Unit net weight (per 2-seat module) | 42 kg | |
|---|---|---|
| Per-seat static load capacity | 150 kg | |
| Recommended installation density | 1.8 seats per linear meter | |
| Seat folding cycle rating | 50000 cycles | |
| Frame static load rating (per 2-seat unit) | 300 kg | |
| Usable lifespan for high-traffic use | 10 years | |
| 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 |
Core acceptance fields · Panels / hardware / frame / upholstery
| Structural frame | Die-cast aluminum alloy, 4mm wall thickness, silver matte powder coat | |
|---|---|---|
| Seat and back support inner core | 12mm thick molded plywood | |
| Seat cushion foam | 45kg/m³ high-resilience polyurethane foam, 80mm thickness | |
| Back cushion foam | 40kg/m³ high-resilience polyurethane foam, 60mm thickness | |
| Upholstery fabric | 0.8mm thick wear-resistant polyester fabric, 50000 double-rub abrasion rating | |
| Folding writing tablet | Injection-molded polypropylene with textured matte black finish | |
| Seat return mechanism | Zinc-plated steel spring hinge, 2.5mm plate thickness | |
| Floor anchor feet | Cast aluminum with pre-drilled mounting holes, anti-slip textured base | |
| Cup holder/underseat pocket | Injection-molded black ABS plastic, attached to rear of seat back | |
| Mounting hardware | Stainless steel M8 expansion bolts for concrete floor installation | |
| 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
| Gravity-return folding seat | Seat automatically folds upright to a vertical stored position when unoccupied, maximizing aisle clearance | |
|---|---|---|
| Fold-out side writing tablet | Individual PP tablet folds flat against armrest when not in use, deploys horizontally for writing or laptop use | |
| Fixed floor mounting | Units are permanently anchored to finished concrete or raised flooring via foot plates, preventing movement | |
| Underseat rear cup holder | Recessed cup holder mounted on rear of each seat back for use by the row behind | |
| Modular row connectivity | 2-seat modules connect end-to-end to form continuous rows of any length, aligned via frame brackets | |
| Silent seat return damping | Folding seat mechanism includes rubber damping pads to prevent impact noise during return | |
| Fixed seat pitch alignment | Seat positions are fixed at installation to maintain consistent row spacing and egress clearance | |
| Smooth tablet folding hinge | Writing tablet hinge locks in deployed horizontal position, releases with a push button to fold flat | |
| 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 | Installed in fixed rows to provide durable writing surfaces and high seating capacity for large classes | |
|---|---|---|
| Corporate training rooms | Arranged in tiered or flat rows for employee training sessions and presentation events | |
| Cinema and performance venues | Used for permanent audience seating with compact footprint when seats are folded | |
| Conference center auditoriums | Deployed in large meeting spaces for conferences, seminars and keynote events | |
| Government and institutional meeting rooms | Installed as fixed formal seating for public hearings and official meetings | |
| School multi-purpose halls | Used for student assemblies, performances and examination venues | |
| 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
| Auditorium seating strength and durability | EN 12727:2000 | |
|---|---|---|
| Furniture fire resistance (upholstery) | EN 1021:2014 | |
| Seating ergonomic dimensions | EN 1335:2020 |
Standards applicable to China-market projects
| Public seating structural safety | GB/T 3326 | |
|---|---|---|
| Upholstered furniture flame retardancy | GB 20286 | |
| Furniture surface coating limit | GB 18584 |
This product must meet the following technical requirements: 1. Public seating structural safety: GB/T 3326; 2. Upholstered furniture flame retardancy: GB 20286; 3. Furniture surface coating limit: GB 18584; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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