| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall unit dimensions (seat closed) | 700 x 740 x 1080 mm | |
|---|---|---|
| Seat height from finished floor | 490 mm | |
| Armrest height from finished floor | 700 mm | |
| Seat usable depth | 470 mm | |
| Backrest total height above seat | 830 mm | |
| Perforated wood side panel thickness | 60 mm | |
| Writing tablet stowed position depth | 470 mm | |
| Writing tablet deployed working depth | 830 mm | |
| Minimum recommended row spacing | 900 mm | |
| Center-to-center seat width for ganged installation | 700 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
| Unit net weight | 28 kg | |
|---|---|---|
| Recommended static user load capacity | 150 kg | |
| Seat tip-up return cycle durability | 50000 cycles | |
| Seat cushion foam density | 55 kg/m³ | |
| Backrest foam density | 45 kg/m³ | |
| Seat cushion foam thickness | 70 mm | |
| Backrest foam thickness | 80 mm | |
| Fabric abrasion resistance (Wyzenbeek double rubs) | 150000 | |
| Perforated panel noise reduction coefficient | 0.5 | |
| Seat return operating noise | 8 dB |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back upholstery | Woven commercial turquoise fabric, anti-fouling, anti-static treatment | |
|---|---|---|
| Seat cushion core | Cold-molded high-resilience PU foam, contoured for pressure distribution | |
| Backrest core | Layered high-resilience PU foam, ergonomic lumbar contour | |
| Outer side panels | Curved bentwood with perforated acoustic holes, natural light oak finish | |
| Internal back support board | 9 mm thick multi-layer plywood, rigid backing for upholstery | |
| Structural frame | 2.5 mm thick cold-rolled steel, powder-coated silver finish | |
| Armrest top surface | Solid hardwood with clear polyurethane finish, integrated tablet pivot | |
| Writing tablet surface | A3-sized melamine-faced composite board, 15 mm thick, anti-panic pivot | |
| Floor mounting plates | 2.0 mm thick steel, anchored with expansion bolts | |
| Seat return mechanism | Steel spring with hydraulic damping cylinder, quiet automatic return | |
| Upholstery seam stitching | 8 stitches per inch, reinforced high-tensile polyester thread | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board |
Adjustment / rotation / tilt / mobility / storage features
| Seat tip-up operation | Gravity-assisted damped automatic return, 1.5 second soft close, no slam noise | |
|---|---|---|
| Writing tablet operation | Armrest-pivoted retractable design, rotates 90 degrees to stowed position, anti-panic release | |
| Installation method | Floor-mounted fixed ganged row configuration, anchored to concrete/raised subfloor | |
| Acoustic performance | Perforated wood panels absorb reflected sound, reducing echo in large assembly spaces | |
| Aisle alignment | Ganged connecting brackets align adjacent seats, maintain consistent row spacing | |
| Tablet load capacity | Supports 10 kg static load for notebooks, documents, and personal devices | |
| Customization option | Fabric color and wood finish customizable to match venue interior design | |
| Backrest fixed recline angle | 20 degrees | |
| 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 | Suitable for tiered university and training room seating, supports note-taking via integrated tablet | |
|---|---|---|
| Auditorium application | Ideal for theater, conference center, and school auditorium fixed row installations | |
| Cinema screening room application | Appropriate for institutional screening rooms, with tip-up seats for clear egress | |
| Public government assembly hall application | Meets heavy-use requirements for council chambers and public meeting facilities | |
| Recommended row configuration | Install with 900mm minimum row spacing for adequate legroom and emergency egress | |
| Optional accessory compatibility | Supports row number plates, under-seat book nets, and aisle lighting accessories | |
| 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 13761:2002 | Performance requirements for public seating used in auditoria and lecture halls | |
|---|---|---|
| EN 1021-1:2014 | Upholstered furniture ignition resistance for smoldering cigarette source | |
| EN 12727:2000 | Mechanical safety and strength requirements for ranked fixed seating |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | General-purpose office chair safety and durability reference for seating components | |
|---|---|---|
| ANSI/BIFMA X5.4-2020 | Lounge and public seating performance test reference for static and cyclic loads |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden furniture, applicable to wood panel components | |
|---|---|---|
| GB/T 20247-2006 | Acoustic sound absorption coefficient testing for perforated panel performance verification | |
| GB 20286-2006 | Fire performance requirements for upholstered furniture in public assembly venues | |
| GB/T 10357.3-2013 | Furniture mechanical performance test for chair seat and back static/dynamic load |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture, applicable to wood panel components; 2. GB/T 20247-2006: Acoustic sound absorption coefficient testing for perforated panel performance verification; 3. GB 20286-2006: Fire performance requirements for upholstered furniture in public assembly venues; 4. GB/T 10357.3-2013: Furniture mechanical performance test for chair seat and back static/dynamic load; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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