| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 580 x 650 x 1000 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
| Net weight per seat | 22 kg | |
|---|---|---|
| Recommended static seat load | 150 kg | |
| Seat foam density | 45 kg/m³ | |
| Fabric abrasion resistance (Martindale) | 50000 cycles | |
| Seat tip-up mechanism cycle life | 50000 cycles | |
| Floor mount static load capacity | 500 kg per leg | |
| 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
| Seat and backrest upholstery | Woven commercial polyester fabric, mauve color | |
|---|---|---|
| Seat and back padding | High-resilience polyurethane foam, 80 mm thick for seat, 60 mm thick for back | |
| Seat front/modesty panel | Perforated wood-composite panel, beech wood veneer finish | |
| Structural side frames and legs | Die-cast aluminum alloy with matte silver powder-coated finish | |
| Armrest caps | Solid beech wood veneer panel with polished edge, aluminum end cap | |
| Folding writing tablet | High-impact black ABS plastic panel, aluminum pivot hinge | |
| Seat pivot mechanism | Cold-rolled steel bracket with chrome-plated hinge pin | |
| Side modesty panels | Fabric-covered padded panel matching seat upholstery | |
| 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 | |
| Tilt Mechanism Plate Thickness | 2.5 mm cold-rolled steel |
Adjustment / rotation / tilt / mobility / storage features
| Seat folding mechanism | Gravity-activated automatic tip-up, returns to vertical position when unoccupied | |
|---|---|---|
| Writing tablet operation | Fold-out side tablet pivots 90 degrees from stored vertical position to horizontal writing surface | |
| Floor mounting | Fixed surface mount to raised auditorium flooring via bolted aluminum base plates | |
| Row ganging | Interlocking side frames connect adjacent seats for uniform aligned row installation | |
| Acoustic performance | Perforated front seat panel provides sound diffusion to reduce echo in large assembly spaces | |
| Back support | Contoured upholstered back with lumbar support zone for extended seated event use | |
| Armrest function | Fixed wide armrests provide elbow support and house tablet pivot hardware | |
| 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 | Durable fixed seating with writing tablet supports long-duration note-taking and lectures | |
|---|---|---|
| Conference auditoriums | Uniform row seating provides clear sightlines and formal seating for large events | |
| Cinema and performing arts theaters | Upholstered padding and tip-up seats enable efficient egress and guest comfort | |
| Corporate training rooms | Integrated writing surface eliminates need for separate desks for training sessions | |
| Government assembly chambers | Fixed ganged seating provides orderly, durable seating for formal public meetings | |
| 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 | Applicable for strength, durability and safety requirements for auditorium seating | |
|---|---|---|
| EN 1022:2018 | Applicable for seating stability testing requirements for fixed public seating | |
| EN 13501-1:2018 | Recommended fire reaction classification for upholstered public seating components |
Standards applicable to China-market projects
| GB/T 3324-2017 | Applicable for general technical requirements of wooden furniture components | |
|---|---|---|
| GB/T 19001-2016 | Recommended quality management system requirement for production consistency | |
| GB 18584-2001 | Applicable for limit of harmful substances in wooden furniture for indoor use | |
| GB/T 24821-2009 | Applicable for general technical requirements of public arena seating |
This product must meet the following technical requirements: 1. GB/T 3324-2017: Applicable for general technical requirements of wooden furniture components; 2. GB/T 19001-2016: Recommended quality management system requirement for production consistency; 3. GB 18584-2001: Applicable for limit of harmful substances in wooden furniture for indoor use; 4. GB/T 24821-2009: Applicable for general technical requirements of public arena seating; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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