| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall 2-seat unit dimensions | 1180 x 830 x 1080 mm | |
|---|---|---|
| Single seat center distance | 590 mm | |
| Seat height from finished floor | 450 mm | |
| Seat cushion usable dimensions | 470 x 440 x 130 mm | |
| Backrest usable dimensions | 750 x 470 x 135 mm | |
| Armrest top height from floor | 660 mm | |
| Writing tablet usable dimensions | 270 x 250 x 15 mm | |
| Tablet deployed total seat depth | 830 mm | |
| Minimum required row pitch | 950 mm | |
| Floor mounting base plate dimensions | 380 x 60 x 5 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
| Per-seat vertical static load capacity | 150 kg | |
|---|---|---|
| Seat return mechanism impact resistance | 85 kg | |
| Seat cushion foam density | 60 kg/m³ | |
| Backrest foam density | 45 kg/m³ | |
| Seat tip-up return cycle durability | 50000 cycles | |
| Seat return operating noise | 8 dB | |
| Per-seat net weight | 23 kg | |
| 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
| Seat and back upholstery | Wear-resistant polyester fabric, 300g/m², anti-pill treated | |
|---|---|---|
| Seat cushion padding | Cold-cure high-resilience PU foam, 130mm thick, 60kg/m³ | |
| Backrest padding | Cold-cure PU foam, 135mm thick, 45kg/m³ | |
| Structural support frame | 2.0mm thick cold-rolled steel, electrostatic powder-coated silver finish | |
| Floor mount legs | Die-cast aluminum alloy, powder-coated, 5mm thick base plate | |
| Armrest tops | 30mm thick solid beech wood, 6-coat polyurethane finish | |
| Writing tablet panel | 15mm thick high-density plywood, melamine laminate surface | |
| Pivot return mechanism | Torsion spring with hydraulic damper, 2.0mm elliptical steel pivot tube | |
| Seat inner support board | 13mm thick multi-layer hardwood plywood, edge-sealed | |
| Back outer panel | 15mm thick multi-layer hardwood plywood, PU painted finish | |
| 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
| Tip-up seat operation | Automatic damped return, 3-second slow close, no slam | |
|---|---|---|
| Flip-up writing tablet | Folds flush into armrest when not in use, 6.5° upward tilt | |
| Floor mounting system | Fixed bolt-down installation with pre-punched base plates, 340mm hole spacing | |
| Ganged modular connection | Steel bracket linking adjacent seats for uniform row alignment | |
| Seat return noise reduction | Rubber stop bumper at pivot to eliminate metal impact noise | |
| Intermediate armrest support | Fixed wood-top armrest between adjacent seats for shared elbow support | |
| Optional accessories | Row/seat number plates, under-seat book net, flame-retardant upholstery upgrade | |
| 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 classroom seating | Fixed tiered installation with writing tablet for note-taking and laptop use | |
|---|---|---|
| Conference hall and meeting room seating | Quiet return mechanism and ergonomic support for long meeting sessions | |
| Theater and performance venue seating | Tip-up seat design maximizes aisle clearance during audience entry/exit | |
| Public government and institution seating | Durable construction and secure floor mounting for high-traffic public use | |
| Standard configuration recommendation | Pair with front-row accessible seating and end-of-row aisle units for code compliance | |
| 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 13761:2003 | Furniture – Seating for public areas – Safety and strength requirements | |
|---|---|---|
| EN 1022:2018 | Furniture – Seating – Determination of stability | |
| EN 12520:2015 | Furniture – Strength, durability and safety for domestic and contract seating |
US and Canada office-furniture standards
| ANSI/BIFMA X5.11-2015 | General Purpose Office Seating – Large Occupant, optional enhanced load rating | |
|---|---|---|
| ANSI/BIFMA X5.4-2021 | Lounge and Public Seating, performance and durability requirements |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden furniture, applicable to wood panels and armrests | |
|---|---|---|
| GB/T 24821-2009 | General technical requirements for public seating furniture, applicable to auditorium chairs | |
| GB 20286-2006 | Flame retardant requirements for public furniture upholstery, optional fire-rated spec | |
| GB/T 10357.3-2013 | Furniture mechanical test for seat and back strength and durability |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture, applicable to wood panels and armrests; 2. GB/T 24821-2009: General technical requirements for public seating furniture, applicable to auditorium chairs; 3. GB 20286-2006: Flame retardant requirements for public furniture upholstery, optional fire-rated spec; 4. GB/T 10357.3-2013: Furniture mechanical test for seat and back strength and durability; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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