| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 620 x 680 x 1020 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
| Net weight per seat | 28 kg | |
|---|---|---|
| Static seat load capacity | 150 kg | |
| Seat tip-up cycle life | 100000 cycles | |
| Fabric abrasion resistance | 50000 Martindale cycles | |
| Seat cushion foam density | 45 kg/m³ | |
| Backrest foam density | 35 kg/m³ | |
| 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 | |
|---|---|---|
| Seat cushion padding | High-resilience polyurethane foam | |
| Backrest padding | High-resilience polyurethane foam | |
| Armrests | Stained solid beech wood | |
| Support pedestal | Die-cast aluminum alloy | |
| Writing tablet surface | Plywood with wood veneer | |
| Writing tablet bracket | Powder-coated cold-rolled steel | |
| Seat hinge mechanism | Zinc-plated steel hardware | |
| Inner seat frame | 1.8mm thick cold-rolled steel tube | |
| 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 operation | Gravity-activated automatic tip-up seat | |
|---|---|---|
| Writing tablet operation | Side-mounted retractable fold-out tablet | |
| Installation method | Floor-mounted fixed pedestal | |
| Row configuration | Side-by-side ganging compatible | |
| Tablet position lock | Automatic horizontal lock when deployed | |
| Surface maintenance | Stain-resistant fabric finish | |
| Noise damping | Silent seat return buffer | |
| 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 seating | Fixed installation for university and college lecture spaces | |
|---|---|---|
| Theater and auditorium use | Suitable for performing arts venues and cinemas | |
| Conference center installation | Used in large meeting rooms and convention halls | |
| Government assembly hall seating | Appropriate for council chambers and public meeting rooms | |
| Corporate training room use | Installed in dedicated in-house training facilities | |
| 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 | Seating for auditoriums and arenas - Mechanical safety requirements | |
|---|---|---|
| EN 1021-1:2014 | Furniture upholstery fire resistance - Cigarette ignition test |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden furniture | |
|---|---|---|
| GB 20286-2006 | Flame retardant performance of public venue furniture | |
| GB/T 10357.3-2013 | Furniture mechanical performance test for seating strength |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture; 2. GB 20286-2006: Flame retardant performance of public venue furniture; 3. GB/T 10357.3-2013: Furniture mechanical performance test for seating strength; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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