| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
No corrections yet. Use the flag at the end of a row to report an issue. | ||||
Automatic mm / inch conversion · Core engineering specifications
| Per-seat center distance | 580 mm | |
|---|---|---|
| Seat inner usable width | 500 mm | |
| Seat usable depth | 465 mm | |
| Seat surface height from floor | 460 mm | |
| Fixed writing tablet height from floor | 760 mm | |
| Writing tablet depth per seat | 345 mm | |
| Writing tablet panel thickness | 25 mm | |
| Backrest total height from floor | 1020 mm | |
| Armrest height from floor | 660 mm | |
| Floor mounting foot plate length | 375 mm | |
| Under-seat book rack dimensions | 430 x 235 x 105 mm | |
| Floor foot plate thickness | 4 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 | 28 kg | |
|---|---|---|
| Recommended static user load per seat | 150 kg | |
| Seat gravity return mechanism cycle life | 100000 cycles | |
| Fire-resistant laminate surface abrasion resistance | 2000 cycles | |
| Frame powder coating adhesion grade | Grade 1 | |
| Static load capacity per floor anchor | 500 kg | |
| 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
| Support frame and uprights | 5 mm wall thickness aluminum alloy with matte black electrostatic powder coating | |
|---|---|---|
| Fixed writing tablet core | 25 mm high-density wood composite panel | |
| Writing tablet surface and edge | Fire-resistant HPL laminate with aluminum alloy edge trim | |
| Seat and back divider panels | 15 mm multi-layer plywood with light wood grain HPL facing | |
| Tablet support brackets | 2 mm thick cold-rolled steel with powder coating | |
| Under-seat book rack | 4.8 mm diameter cold-drawn steel wire with black powder coating | |
| Seat return mechanism components | Zinc-plated steel gravity-return hinge with damping buffer | |
| Floor mounting fasteners | Electroplated hex socket expansion bolts | |
| Seat cushion surface | 12 mm thick rigid wood-composite panel with smooth laminate finish | |
| 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 |
Adjustment / rotation / tilt / mobility / storage features
| Seat return mechanism | Gravity-driven automatic damped return to stowed vertical position | |
|---|---|---|
| Writing tablet design | Permanently fixed front-mounted rigid surface, no folding or sliding mechanism | |
| Installation compatibility | Floor-mounted anchor design suitable for both flat and tiered lecture hall layouts | |
| Under-seat storage | Integrated steel wire rack under each writing tablet for storing bags, books and personal items | |
| Seat divider design | Contoured rigid wood-finish dividers between adjacent seats for user privacy and spatial separation | |
| Cable management provision | Integrated wire loops under tablet surface for routing power or data cables to user devices | |
| Row linkage capability | Modular frame design supports continuous row connection with aligned seat spacing | |
| 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
| Per-seat shipping volume | 0.52 CBM | |
|---|---|---|
| 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
| Tiered college and university lecture halls | Fixed row design optimizes sightlines and space efficiency for large class audiences | |
|---|---|---|
| K-12 school multimedia classrooms | Durable easy-to-clean surfaces suit high daily student traffic | |
| Corporate training and conference auditoriums | Integrated writing tablet supports note-taking during long sessions | |
| Government and institutional meeting halls | Permanent floor mounting provides stable seating for formal events | |
| Continuing education and exam venues | Fixed individual writing surfaces prevent movement during assessments | |
| Public training centers and seminar rooms | Modular row design adapts to different room sizes and layouts | |
| 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 1729-1:2015 Furniture for educational institutions Part 1: Functional dimensions | Sets reference for seat, desk and clearance dimensions for student seating | |
|---|---|---|
| EN 1729-2:2012 Furniture for educational institutions Part 2: Safety requirements | Applies to structural safety, edge finishing and stability testing | |
| EN 13761:2022 Public seating - Requirements for safety, strength and durability | Sets strength and durability benchmarks for fixed public seating |
US and Canada office-furniture standards
| ANSI/BIFMA X5.11-2015 Large Occupant Office Chairs | Provides static load reference for heavy-user seat capacity verification |
|---|
Standards applicable to China-market projects
| GB/T 3324-2017 General technical requirements for wooden furniture | Applies to wood-composite panel structural and performance requirements for acceptance | |
|---|---|---|
| GB/T 3325-2017 Metal furniture general technical requirements | Applies to metal frame strength, coating and fastener performance verification | |
| GB 28007-2011 General technical requirements for children and student furniture | Applicable for K-12 and higher education classroom seating safety requirements | |
| GB 18580-2017 Formaldehyde emission limits for wood-based panels | Applies to panel material indoor air quality acceptance criteria |
This product must meet the following technical requirements: 1. GB/T 3324-2017 General technical requirements for wooden furniture: Applies to wood-composite panel structural and performance requirements for acceptance; 2. GB/T 3325-2017 Metal furniture general technical requirements: Applies to metal frame strength, coating and fastener performance verification; 3. GB 28007-2011 General technical requirements for children and student furniture: Applicable for K-12 and higher education classroom seating safety requirements; 4. GB 18580-2017 Formaldehyde emission limits for wood-based panels: Applies to panel material indoor air quality acceptance criteria; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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