| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Two-seat overall dimensions | 1200 x 860 x 1050 mm | |
|---|---|---|
| Single-seat center distance | 600 mm | |
| Seat height from floor | 450 mm | |
| Seat cushion usable dimensions | 580 x 460 mm | |
| Backrest height from seat | 600 mm | |
| Unfolded writing tablet dimensions | 400 x 280 x 12 mm | |
| Armrest height from floor | 630 mm | |
| Fully opened depth with tablet deployed | 860 mm | |
| Minimum required row spacing | 1000 mm | |
| Folded seat depth (tip-up position) | 520 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 net weight | 35 kg | |
|---|---|---|
| Recommended per-seat static load | 160 kg | |
| Seat foam density | 60 kg/m³ | |
| Backrest foam density | 55 kg/m³ | |
| Foam rebound rate | 50% | |
| Fabric abrasion resistance | 80000 cycles | |
| Fabric color fastness (dry/wet rub) | Grade 5 | |
| Seat mechanism cycle life | 100000 operations | |
| Writing tablet static load capacity | 50 kg | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back upholstery | Dark gray woven polyester fabric | |
|---|---|---|
| Seat cushion padding | Cold-cured high-density PU foam | |
| Backrest padding | Cold-cured high-density PU foam | |
| Armrest caps | Light-colored birch plywood with clear lacquer finish | |
| Folding writing tablet | Perforated light plywood panel | |
| Armrest side panels | Black fabric-upholstered panels | |
| Floor support legs | Polished chrome-plated steel T-base | |
| Seat hinge mechanism | Zinc-plated steel with silent damping bushing | |
| Writing tablet pivot hardware | Chrome-plated steel and PP+25%GF bushings | |
| Internal seat support frame | 1.5mm thick welded steel tubing | |
| 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 mechanism | Spring-damped automatic return | |
|---|---|---|
| Fold-down writing tablet | Pivots 90° from stored vertical position to horizontal writing surface | |
| Floor-mounted installation | Pre-drilled T-leg bases bolt directly to concrete or raised venue flooring | |
| Ganged modular connection | Adjacent seats connect via shared armrest to form continuous rows | |
| Silent operation damping | All pivot points include polymer bushings to eliminate impact noise | |
| Tablet storage position | Folds flush into armrest side panel when not in use | |
| Fixed ergonomic back support | Contoured tall back provides full lumbar and upper back support | |
| Backrest fixed recline angle | 105° | |
| 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
| University lecture halls | Fixed ganged seating with writing tablets supports note-taking during long classes | |
|---|---|---|
| Corporate conference and training rooms | Durable upholstered seating with clean professional finish for formal events | |
| Auditoriums and assembly halls | Floor-mounted stable design suitable for high-capacity permanent venue installations | |
| Government and public hearing rooms | Formal wood and chrome finish matches official interior design schemes | |
| Cinema screening rooms (education/corporate) | Optional fire-retardant fabric meets public venue safety 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
| Furniture strength and stability | EN 12727:2000 | |
|---|---|---|
| Upholstered furniture flammability | EN 1021:2006 | |
| Formaldehyde emission | EN 13986 E1 class |
Standards applicable to China-market projects
| Fabric flame retardancy | GB 20286 B1 level | |
|---|---|---|
| Formaldehyde emission limit | GB 18584 ≤0.124mg/m³ |
This product must meet the following technical requirements: 1. Fabric flame retardancy: GB 20286 B1 level; 2. Formaldehyde emission limit: GB 18584 ≤0.124mg/m³; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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