| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall unit dimensions (2 seats) | 1200 x 740 x 1050 mm | |
|---|---|---|
| Seat center-to-center distance | 600 mm | |
| Seat height from finished floor | 450 mm | |
| Armrest top height above floor | 645 mm | |
| Armrest width | 80 mm | |
| Seat clear width per position | 485 mm | |
| Backrest height above seat | 600 mm | |
| Seat foam thickness | 140 mm | |
| Backrest foam thickness | 110 mm | |
| Solid wood armrest thickness | 30 mm | |
| Plywood modesty panel thickness | 18 mm | |
| Recommended row-to-row spacing | 1000 mm | |
| Perforated under-seat panel size | 425 x 405 mm | |
| Finished Seat Cushion Thickness | 90 mm | |
| Backrest Padding Thickness | 70 mm | |
| Lumbar Support Zone Height | 240 mm |
Net weight / load capacity / users / durability
| Seat static load capacity | 150 kg per seat | |
|---|---|---|
| Net weight per seat | 28 kg | |
| Seat foam density | 55 kg/m³ | |
| Foam rebound rate | 52% | |
| Seat return cycle rating | 100000 cycles | |
| Recommended user weight per seat | 136 kg | |
| Fabric abrasion resistance (Martindale) | 50000 cycles | |
| 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 |
Core acceptance fields · Panels / hardware / frame / upholstery
| Armrest and side frame components | Solid beech wood with lacquered medium oak finish | |
|---|---|---|
| Seat and back upholstery | Woven polyester fabric, green color | |
| Seat and back cushion core | Cold-cured high-density polyurethane foam | |
| Seat support structure | 1.6mm thick powder-coated rectangular steel tube frame (40x80mm) | |
| Under-seat modesty panel | Perforated bent plywood with matching wood veneer | |
| Floor mounting feet | Black powder-coated steel foot plates with anchor bolt holes | |
| Outer side accent panel (left arm) | Black textured anti-scratch laminate panel | |
| Seat return mechanism | Dual torsion spring with damper for quiet automatic tip-up | |
| Seat inner support | Serpentine spring base under seat cushion | |
| 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 tip-up return function | Spring-damped automatic upward return when unoccupied, noise ≤30dB | |
|---|---|---|
| Floor fixed installation | Ganged row units secured to concrete/raised floor via expansion anchor bolts | |
| Writing tablet compatibility | Pre-drilled outer side frame mounts for side-folding rotating writing tablet | |
| Acoustic performance | Perforated under-seat wood panel provides partial sound absorption | |
| Armrest functionality | Fixed wood armrests provide stable elbow support and seat division between positions | |
| Ergonomic back support | Contoured high back supports lumbar and upper back for 2+ hour seated events | |
| 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 and university auditorium use | Fixed row configuration supports long-duration seated learning events | |
|---|---|---|
| Theater and performance hall use | Quiet tip-up seats and acoustic perforations improve audience experience | |
| Corporate conference and meeting hall use | Formal wood finish matches professional conference room aesthetics | |
| Cinema and multipurpose venue use | Ergonomic padding reduces fatigue during extended film or event screenings | |
| Government and public assembly hall use | Floor-mounted ganged structure meets public venue safety and egress requirements | |
| 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 | Strength, durability and safety requirements for fixed auditorium seating | |
|---|---|---|
| EN 1021-1:2014 | Upholstered furniture ignitability test (cigarette source) for public venues | |
| EN 13722:2003 | Furniture hardware performance requirements for seating mechanisms |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden furniture, applicable to frame and wood components | |
|---|---|---|
| GB 20286-2006 | Flame retardant performance requirements for upholstered furniture in public assembly venues | |
| GB/T 10357.3-2013 | Mechanical test methods for seating furniture strength and durability |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture, applicable to frame and wood components; 2. GB 20286-2006: Flame retardant performance requirements for upholstered furniture in public assembly venues; 3. GB/T 10357.3-2013: Mechanical test methods for seating furniture strength and durability; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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