| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Perforated modesty panel height | 380 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
| Single seat static load capacity | 150 kg | |
|---|---|---|
| Total unit weight (2 seats) | 48 kg | |
| Recommended maximum row seating capacity | 20 seats per straight run | |
| Fabric abrasion resistance (Martindale) | 50000 cycles | |
| Foam density (seat cushion) | 45 kg/m³ | |
| Product service life (commercial use) | 10 years | |
| 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 back upholstery | Woven polyester fabric, dark red, textured weave | |
|---|---|---|
| Seat cushion core | High-resilience polyurethane foam, flame-retardant treated | |
| Backrest inner support panel | Perforated medium-density fiberboard with beech wood veneer finish | |
| Armrest support frame | Die-cast aluminum alloy, matte silver powder coated finish | |
| Floor mounting feet | Thick steel plate, silver powder coated, pre-drilled for anchor bolts | |
| Folding writing tablet | Rigid MDF core with black anti-slip matte laminate surface | |
| Seat outer side panel | Curved fabric-upholstered panel matching seat fabric color | |
| Seat return mechanism | Steel torsion spring with damped soft-close pivot joint | |
| Mounting hardware | Galvanized steel expansion bolts for concrete floor installation | |
| 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
| Tip-up seat mechanism | Spring-loaded self-return seat that folds vertically when unoccupied, with 90 degree tilt range | |
|---|---|---|
| Folding writing tablet | Retractable tablet stowed in outer armrest, folds out 180 degrees to flat horizontal position for writing | |
| Floor-fixed installation | Permanent floor anchoring via steel feet, no movement after installation to prevent row shifting | |
| Ganged row alignment | Interlocking metal connectors between adjacent seats to maintain straight uniform row alignment | |
| Noise-dampening pivot | Nylon pivot bushings at seat joint to eliminate metal-on-metal squeak during use | |
| Perforated back ventilation | Evenly spaced square perforations on lower back panel to improve airflow for seated users | |
| 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
| Number of shipping cartons | 3 cartons | |
|---|---|---|
| Total shipping carton dimensions | 1200 x 800 x 600 mm | |
| Total shipping gross weight | 58 kg | |
| On-site assembly time per 2-seat unit | 40 minutes | |
| 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 |
Recommended spaces / users / usage modes
| University lecture halls | Fixed durable seating with writing tablets suitable for long class sessions and note taking | |
|---|---|---|
| Corporate conference auditoriums | Professional wood-accented seating matching formal business venue interiors | |
| Cinema and performing arts theaters | Tip-up seat design enabling quick row access between intermissions | |
| Government assembly halls | Code-compliant fixed seating meeting public venue safety requirements | |
| School multi-purpose halls | Sturdy construction suitable for high daily student traffic and frequent events | |
| 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 | Applicable safety and strength standard for public seating in auditoria and conference venues | |
|---|---|---|
| EN 1021-1:2014 | Applicable upholstery flammability standard for cigarette ignition resistance | |
| EN 12727:2000 | Applicable durability and load requirement standard for ranked fixed seating |
Standards applicable to China-market projects
| GB 20286-2006 | Applicable standard for flame retardant performance of upholstered furniture in public assembly venues | |
|---|---|---|
| GB/T 3324-2017 | Applicable general technical requirement standard for wooden furniture structural safety | |
| GB/T 39600-2021 | Applicable limit standard for formaldehyde emission from wood-based panel components |
This product must meet the following technical requirements: 1. GB 20286-2006: Applicable standard for flame retardant performance of upholstered furniture in public assembly venues; 2. GB/T 3324-2017: Applicable general technical requirement standard for wooden furniture structural safety; 3. GB/T 39600-2021: Applicable limit standard for formaldehyde emission from wood-based panel components; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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