| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions (W×D×H) | 620 × 720 × 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
| Single chair static load capacity | 150 kg | |
|---|---|---|
| Seat cushion foam density | 45 kg/m³ | |
| Fabric abrasion resistance | 50000 Martindale cycles | |
| Total product net weight | 28 kg | |
| Seat mechanism cycle rating | 100000 tip-up 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 | |
| Five-star Base Static Load Reference | Acceptance target ≥120 kg; chair reference load 150 kg | |
| Caster Rolling Durability Reference | Acceptance target 30000 cycles |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back upholstery | Woven polyester contract fabric | |
|---|---|---|
| Seat cushion core | High-resilience polyurethane foam | |
| Back inner panel | Curved plywood with wood veneer finish | |
| Armrest panels | Solid beech veneer plywood | |
| Support frame and feet | Die-cast aluminum alloy with polished finish | |
| Folding writing tablet | High-pressure laminate (HPL) with matte black surface | |
| Tablet pivot hardware | Zinc-plated steel hinge with detent | |
| 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 | |
| Tilt Mechanism Plate Thickness | 2.5 mm cold-rolled steel | |
| Five-star Base Material Thickness | Metal base wall 3.5 mm; diameter 700 mm |
Adjustment / rotation / tilt / mobility / storage features
| Seat tip-up mechanism | Gravity-activated automatic return to upright position | |
|---|---|---|
| Writing tablet operation | Folds flush into armrest when not in use, locks in horizontal position for writing | |
| Floor mounting | Permanent bolt-down installation to level concrete or raised floors | |
| Row alignment feature | Interlocking side brackets for uniform ganged row installation | |
| Modesty panel | Solid lower seat panel blocks view from behind the seat | |
| Noise damping | Integrated rubber buffers eliminate impact noise during seat return | |
| 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
| Standard auditoriums | Fixed-row installation for lecture halls and conference auditoriums | |
|---|---|---|
| Cinema and theater venues | Upholstered comfort for extended viewing sessions | |
| Educational facilities | Folding tablets support note-taking in university lecture halls | |
| Corporate conference centers | Formal fixed seating for large meeting and presentation spaces | |
| Government assembly halls | Durable construction meets high-traffic public facility 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 13761:2002 | Audience seating, mechanical performance and stability requirements for fixed chairs | |
|---|---|---|
| EN 1021-1:2014 | Upholstered furniture ignition resistance (smouldering cigarette) test | |
| EN 12727:2000 | Durability and safety requirements for ranked public seating |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden furniture, applicable to plywood components | |
|---|---|---|
| GB/T 35453-2017 | Public seating for auditoriums, test methods for mechanical safety and durability | |
| GB 20286-2006 | Flame retardant requirements for public place upholstered furniture components |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture, applicable to plywood components; 2. GB/T 35453-2017: Public seating for auditoriums, test methods for mechanical safety and durability; 3. GB 20286-2006: Flame retardant requirements for public place upholstered furniture components; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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