| 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
| Single seat net weight | 28 kg | |
|---|---|---|
| Recommended maximum user weight per seat | 150 kg | |
| Writing tablet vertical static load capacity | 240 kg | |
| Seat tip-up mechanism cycle durability | 200000 cycles | |
| Seat cushion foam density | 60 kg/m³ | |
| Backrest foam density | 45 kg/m³ | |
| Seat cushion foam thickness | 140 mm | |
| Backrest foam thickness | 135 mm | |
| Upholstery fabric abrasion resistance | 50000 Martindale cycles | |
| Seat return damping time | 3 s |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back upholstery | Blue knitted flame-retardant polyester fabric, anti-moth treated | |
|---|---|---|
| Seat cushion core | Cold-cured high-resilience polyurethane molded foam | |
| Backrest padding core | Cold-cured high-resilience polyurethane molded foam | |
| Armrest caps | Solid beech wood with dark red-brown polished paint finish | |
| Fold-out writing tablet | Multilayer painted wood panel with die-cast aluminum rotating joint | |
| Support frame and legs | 2.5 mm thick cold-rolled steel tube with black powder-coated finish | |
| Seat and back inner panels | 18 mm thick 7-layer high-density bent hardwood plywood | |
| Side modesty panels | 15 mm thick density board core with matching blue fabric upholstery | |
| Floor mounting bases | 3 mm thick pressed steel with black anti-rust electrostatic coating | |
| Seat return mechanism | Double torsion spring with damped buffer and rubber anti-collision pad | |
| Mounting fasteners | Rust-proof electrostatic-coated hex expansion anchor screws | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board |
Adjustment / rotation / tilt / mobility / storage features
| Writing tablet operation | Rotating fold-out stowable design with 6.5° upward tilt for writing, silent stowage without rebound | |
|---|---|---|
| Seat tip-up function | Automatic damped gravity return, lifts vertically when unoccupied to clear egress space | |
| Ganged row installation | Pre-aligned connected seat units for continuous row mounting on level or tiered floors | |
| Floor mounting | Permanent fixed installation with 4 expansion screws per pedestal base to concrete or raised subfloor | |
| Seat damping system | Two-stage buffered return eliminates slamming noise, reduces impact wear on components | |
| Shared armrest design | Adjacent seats share a single armrest to maximize row density and reduce material waste | |
| Upholstery acoustic performance | Fabric-wrapped panels reduce sound reflection to improve room acoustics in lecture spaces | |
| Tablet stowage position | Folds flush with armrest assembly when not in use to maintain narrow egress profile | |
| 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
| Lecture hall application | Fixed row seating for university/college academic halls, supports extended note-taking with integrated tablet | |
|---|---|---|
| Auditorium application | Tiered fixed seating for school and corporate auditoriums, silent return minimizes event disruption | |
| Conference hall application | Ganged seating for large conference venues, uniform row alignment creates formal seating layout | |
| Cinema and theater premium seating | Upgraded cinema seating option for venues requiring note-taking or conference hybrid use | |
| Training room application | Seating for corporate training centers, stowable tablet supports material placement during sessions | |
| Public assembly space application | Compliant fixed seating for government and public event halls, meets public occupancy durability requirements | |
| 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 12727:2000 | European standard for strength/durability of ranked fixed auditorium seating | |
|---|---|---|
| EN 1021-1:2014 | Upholstery fire resistance to smoldering cigarette ignition source | |
| EN 1021-2:2014 | Upholstery fire resistance to match flame ignition source |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden furniture, applicable to wood armrest and panel components | |
|---|---|---|
| GB/T 3325-2017 | Metal furniture general technical specifications, applicable to steel frame and base components | |
| GB 20286-2006 | Flame retardant requirements for public assembly seating upholstery materials | |
| GB/T 10357.3-2013 | Furniture mechanical performance test for seating strength and durability |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture, applicable to wood armrest and panel components; 2. GB/T 3325-2017: Metal furniture general technical specifications, applicable to steel frame and base components; 3. GB 20286-2006: Flame retardant requirements for public assembly seating upholstery materials; 4. GB/T 10357.3-2013: Furniture mechanical performance test for seating strength and durability; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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