| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions (2-seat unit, tablet deployed) | 1160 x 860 x 1080 mm | |
|---|---|---|
| Seat center-to-center spacing | 610 mm | |
| Seat height above finished floor | 460 mm | |
| Seat clear usable width | 505 mm | |
| Seat cushion depth | 500 mm | |
| Armrest height above finished floor | 660 mm | |
| Backrest height above seat | 620 mm | |
| Minimum required row-to-row pitch | 1000 mm | |
| Deployed writing tablet usable surface | 300 x 500 mm | |
| Aluminum floor mount base footprint | 380 x 80 mm | |
| Writing tablet support tube diameter | 14 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
| Seat vertical static load capacity | 150 kg | |
|---|---|---|
| Seat return mechanism operational cycle life | 100000 cycles | |
| Unit net weight per seat position | 22 kg | |
| Recommended occupant weight limit per seat | 120 kg | |
| Product expected service life | 10 years | |
| 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
| Floor stand and side frame | Die-cast aluminum alloy with electrostatic powder coating | |
|---|---|---|
| Seat and back cushion padding | 60 kg/m³ high-resilience cold-cure PU foam | |
| Seat and back upholstery | Wear-resistant public-seat wool-linen blend fabric | |
| Seat and back inner support pan | 15 mm thick high-density multi-layer hardwood plywood | |
| Folding writing tablet surface | 12 mm thick painted multi-layer hardwood plywood | |
| Armrest surface and supports | Die-cast polished aluminum with T2.0 mm cold-rolled steel bracket | |
| Seat pivot mechanism | 19x14x2.0 mm oval steel tube with torsion spring and damper | |
| Fasteners and mounting hardware | Galvanized hex socket expansion bolts with decorative dust caps | |
| Upholstery seam stitching | 30 mm stitch pitch, reinforced high-tensile polyester thread | |
| 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 operation | Spring-assisted automatic return with hydraulic damper for silent, slow closing | |
|---|---|---|
| Rear writing tablet deployment | Fold-down mechanism that stows flush against seat back when not in use | |
| Row ganging system | Integrated aluminum side frames connect adjacent seats into rigid continuous rows | |
| Floor mounting design | Flanged base plates secured to concrete/raised floor via expansion bolts | |
| Tablet integrated features | Molded pen slot and cup holder recess on deployed writing surface | |
| Egress clearance | Upright stowed seat provides minimum 300 mm clear aisle passage between rows | |
| Surface maintenance | Stain-resistant fabric finish and smooth powder-coated metal surfaces for wipe-down cleaning | |
| 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 row configuration with writing tablets supports continuous note-taking for classes | |
|---|---|---|
| Corporate conference and training auditoriums | Quiet damper return and durable upholstery suits frequent corporate event use | |
| School multi-purpose auditoriums | Floor-mounted construction and high load rating supports daily student assembly use | |
| Government meeting halls | Formal appearance and stable ganged construction suits official public meeting spaces | |
| Training center classrooms | Fold-up seats allow flexible egress between rows during multi-session training events | |
| Cinema and community performance venues | Contoured back support and ergonomic seat height suits long-duration seated events | |
| 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 13761:2007 | Furniture - Public seating, test methods and requirements for strength and durability | |
|---|---|---|
| EN 1022:2018 | Furniture - Seating, determination of stability for fixed installation seating |
US and Canada office-furniture standards
| ANSI/BIFMA X5.11-2015 | Standard for general-purpose office and public seating, applicable to large-user weight testing | |
|---|---|---|
| ANSI/BIFMA X5.4-2022 | Standard for lounge and public seating strength and durability requirements |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden furniture, applicable to plywood tablet and seat pan components | |
|---|---|---|
| GB/T 35607-2017 | Technical requirements for public seating furniture, applicable to fixed auditorium seating performance | |
| GB/T 19995.2-2005 | Performance requirements for upholstered furniture seating, applicable to seat and back padding |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture, applicable to plywood tablet and seat pan components; 2. GB/T 35607-2017: Technical requirements for public seating furniture, applicable to fixed auditorium seating performance; 3. GB/T 19995.2-2005: Performance requirements for upholstered furniture seating, applicable to seat and back padding; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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