| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Per-seat module overall dimensions | 590 x 830 x 1080 mm | |
|---|---|---|
| Seat center distance between adjacent seats | 590 mm | |
| Seat height from finished floor to seat surface | 465 mm | |
| Armrest top height above finished floor | 628 mm | |
| Fully deployed writing tablet usable size | 310 x 270 x 12 mm | |
| Minimum required row-to-row pitch for access | 950 mm | |
| Seat cushion usable surface dimensions | 480 x 450 x 125 mm | |
| Backrest usable surface dimensions | 480 x 760 x 135 mm | |
| Floor mounting foot plate dimensions | 383 x 63 x 45 mm | |
| Folded seat depth from rear frame line | 460 mm | |
| Deployed tablet overhang from seat front edge | 280 mm | |
| Steel pivot shaft dimensions | 19 x 14 x 2.0 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 (complete assembly) | 28 kg | |
|---|---|---|
| Recommended static user weight capacity per seat | 150 kg | |
| Writing tablet static vertical load capacity | 35 kg | |
| Seat return mechanism noise level | 20 NR | |
| Tablet hinge no-failure operation cycle rating | 200000 cycles | |
| Steel frame corrosion resistance (salt spray test) | 400 hours | |
| Applicable user count per linear row meter | 1.7 seats | |
| Back shell sound absorption coefficient | 0.5 | |
| 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 upholstery | 380g/m² dark blue woven polyester fabric, anti-pilling grade 4, abrasion resistance 50000 Martindale cycles | |
|---|---|---|
| Seat cushion foam | Cold-cured high-resilience PU foam, density 60 kg/m³, rebound rate 55%, 125mm thickness | |
| Backrest foam | Cold-cured high-resilience PU foam, density 45 kg/m³, rebound rate 50%, 135mm thickness | |
| Internal seat/back shell | 15mm thick high-density multi-layer bent hardwood plywood, beech veneer finish, honeycomb sound holes | |
| Support frame and armrest structure | 2.5mm thick cold-rolled steel, phosphated pretreatment, 60μm electrostatic epoxy powder coating | |
| Armrest top surface | 30mm thick solid beech hardwood cap, smooth matte clear lacquer finish | |
| Writing tablet panel | 12mm thick 7-layer high-density bent plywood, wear-resistant melamine light wood finish | |
| Tablet rotation hinge | Die-cast aluminum alloy hinge with nylon bushings, damped return spring | |
| Seat return mechanism | Torsion steel spring with hydraulic damper, automatic slow tip-up return | |
| Floor mounting hardware | M10 galvanized steel expansion anchors, anti-corrosion coated | |
| Side decorative panels | 5mm thick MDF panel, fabric-wrapped matching seat upholstery | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board |
Adjustment / rotation / tilt / mobility / storage features
| Seat tip-up mechanism | Spring-damper actuated automatic return, folds vertically when unoccupied to clear aisle space | |
|---|---|---|
| Writing tablet operation | Rotating fold-out design, deploys from rear seat frame, locks in horizontal use position, folds flush with back when stored | |
| Ganged row mounting | Seats connect rigidly to shared steel support beams, no lateral movement between adjacent units | |
| Floor installation | Permanent fixed mounting to concrete/stepped auditorium floors via anchored foot plates, no wobble under rated load | |
| Row configuration flexibility | Left and right-handed tablet orientations combinable to form continuous rows of any required length | |
| Aisle access clearance | Tipped-up seats provide 300mm clear passage width per seat bay for safe emergency egress | |
| Optional accessory mounting points | Pre-drilled positions for row/seat number plates, rear book nets, and cup holders | |
| Noise damping | Integrated rubber bumpers on seat and tablet stops eliminate impact noise during folding/return | |
| 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 and tiered classrooms | Durable fixed seating with writing surface supports long classes and note-taking | |
|---|---|---|
| Corporate auditoriums and conference centers | Quiet damped operation and professional appearance suit formal presentations and events | |
| Performing arts theater auxiliary seating | Compact footprint and acoustic back shell complement venue sound design | |
| Government and institutional meeting halls | Secure floor mounting and standardized spacing comply with public assembly codes | |
| Training centers and continuing education facilities | Stable tablet surface supports laptops, textbooks, and training materials for adult learners | |
| Recommended configuration for tiered floors | Install with 950mm row pitch to maintain clear sightlines over seats in front | |
| 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 Furniture – Ranked seating for public areas – Safety and strength requirements | Primary European standard for fixed ganged auditorium and lecture hall seating performance | |
|---|---|---|
| EN 1021-1:2014 Upholstered furniture ignitability – smouldering cigarette | Applicable flammability test for fabric and foam components in public spaces |
US and Canada office-furniture standards
| ANSI/BIFMA X5.4-2020 Lounge and Public Seating | Applies to structural load, durability, and stability requirements for public assembly seating | |
|---|---|---|
| ANSI/BIFMA X7.1-2021 Standard for formaldehyde and TVOC emissions from office furniture | Applicable low-emission requirement for foam, plywood, and adhesive components |
Standards applicable to China-market projects
| GB/T 3324-2017 General technical requirements for furniture | Applies to structural strength, dimensional stability, and finish quality of wooden and upholstered seating components | |
|---|---|---|
| GB 20286-2006 Flame retardant requirements for public venue furniture | Mandatory for upholstered seating used in assembly occupancies like auditoriums and lecture halls | |
| GB/T 10357.3-2013 Furniture mechanical performance test for seating | Applicable test standard for seat static load, impact, and durability verification |
This product must meet the following technical requirements: 1. GB/T 3324-2017 General technical requirements for furniture: Applies to structural strength, dimensional stability, and finish quality of wooden and upholstered seating components; 2. GB 20286-2006 Flame retardant requirements for public venue furniture: Mandatory for upholstered seating used in assembly occupancies like auditoriums and lecture halls; 3. GB/T 10357.3-2013 Furniture mechanical performance test for seating: Applicable test standard for seat static load, impact, and durability verification; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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