| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions (seat open) | 580 x 760 x 1050 mm | |
|---|---|---|
| Center-to-center seat width | 590 mm | |
| Seat height from floor | 465 mm | |
| Armrest height from floor | 645 mm | |
| Armrest width | 85 mm | |
| Backrest height from seat surface | 600 mm | |
| Seat usable depth | 460 mm | |
| Seat folded-up depth from back panel | 120 mm | |
| Recommended row spacing | 950 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 | 40 kg | |
|---|---|---|
| Recommended static user load | 150 kg | |
| Seat foam density | 55 kg/m³ | |
| Backrest foam density | 45 kg/m³ | |
| Seat foam thickness | 70 mm | |
| Backrest foam thickness | 40 mm | |
| Seat return mechanism cycle life | 100000 cycles | |
| Fabric abrasion resistance | 50000 Martindale cycles | |
| Structural frame warranty | 5 years | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back upholstery | Flame-retardant commercial-grade woven fabric, red finish | |
|---|---|---|
| Seat padding | Cold-cured high-density polyurethane foam | |
| Back padding | Contoured high-density polyurethane foam | |
| Armrest | Solid rubber wood with clear varnish finish | |
| Cantilever support frame | 2.5mm thick cold-rolled steel, black electrostatic powder coating | |
| Seat and back inner panels | 15mm thick multilayer plywood, veneer edge trim | |
| Seat pivot hinge | Carbon steel with corrosion-resistant plating | |
| Seat return spring | 4mm diameter steel spring, damped auto-return | |
| Floor fixing feet | Horizontal steel brackets with 4 expansion bolt mounting points | |
| Upholstery stitching | Reinforced polyester thread, 8mm seam pitch | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board | |
| Backrest Internal Frame Thickness | 14 mm bent plywood/composite reinforced frame |
Adjustment / rotation / tilt / mobility / storage features
| Flip-up seat operation | Spring-damped automatic return to vertical position when unoccupied | |
|---|---|---|
| Floor mounting | Permanent fixed installation via expansion bolts through horizontal feet | |
| Fixed back support | Contoured 20-degree angled backrest for upright long-duration seating | |
| Seat support system | S-shaped sinuous steel springs under foam for even weight distribution | |
| Armrest function | Fixed solid wood arm support at seated elbow height, no adjustment | |
| Stowed seat clearance | Folded seat reduces protruding depth to 120mm for wider aisle access | |
| Acoustic performance | Upholstered surfaces provide sound absorption to reduce hall echo | |
| Backrest fixed recline angle | 20 degrees from vertical | |
| 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
| Auditorium and theater halls | Fixed row installation for staged events, screenings and performances with clear sightlines | |
|---|---|---|
| Conference and lecture halls | Seating for long presentations, lectures and government meetings with upright posture support | |
| School and university lecture theaters | Tiered floor installation for student and audience seating in educational venues | |
| Church and community assembly halls | Fixed permanent seating for congregations and community events with formal seating layout | |
| Cinema and screening rooms | Row seating for film screenings with appropriate back angle for viewing comfort | |
| 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 1022:2018 | Stability test standard for non-domestic seating, applicable for fixed floor-mounted chairs | |
|---|---|---|
| EN 13759:2002 | Durability test standard for public venue seating mechanisms, including flip-up seats |
US and Canada office-furniture standards
| ANSI/BIFMA X5.11-2015 | Performance standard for public/assembly seating structural load and durability | |
|---|---|---|
| ANSI/BIFMA X5.4-2022 | Durability standard for lounge and public seating upholstery wear resistance |
Standards applicable to China-market projects
| GB 20286-2006 | Flame retardant performance requirement for public venue upholstered seating components | |
|---|---|---|
| GB/T 3324-2017 | General technical requirement for metal furniture structural strength and stability | |
| GB/T 39600-2021 | Limit of harmful substances in furniture upholstery and foam materials |
This product must meet the following technical requirements: 1. GB 20286-2006: Flame retardant performance requirement for public venue upholstered seating components; 2. GB/T 3324-2017: General technical requirement for metal furniture structural strength and stability; 3. GB/T 39600-2021: Limit of harmful substances in furniture upholstery and foam materials; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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