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|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| 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 | 28 kg | |
|---|---|---|
| Recommended static user load per seat | 150 kg | |
| Powder coating durability | 500 hours neutral salt spray resistance | |
| Laminate panel scratch resistance | 2000 revolutions Taber abrasion resistance | |
| Seat return mechanism cycle life | 100000 flip cycles | |
| Recommended user height range | 1900 mm | |
| Formaldehyde emission level for wood panels | E1 grade | |
| Standard product warranty period | 5 years | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ |
Core acceptance fields · Panels / hardware / frame / upholstery
| Floor support pedestal | One-piece die-cast aluminum alloy, high-temperature silver-gray powder coating, no welded joints | |
|---|---|---|
| Seat support bracket | 1.5 mm thick stamped cold-rolled steel, anti-rust powder coating | |
| Backrest support frame | 1.5 mm thick stamped steel plate, welded flat iron reinforcement, powder coated | |
| Seat panel core | 15 mm thick hot-pressed multi-layer plywood, eco-friendly low-formaldehyde adhesive, double-sided HPL | |
| Backrest panel core | 10 mm thick hot-pressed multi-layer plywood, double-sided beech wood-grain fireproof HPL | |
| Writing table panel | 25 mm thick high-density particleboard, double-sided fireproof HPL, 1.5mm PVC anti-collision edge banding | |
| Armrest caps | Solid beech wood, open-grain clear eco-paint finish | |
| Under-seat book basket | Cold-drawn steel wire (5mm outer / 3mm inner diameter), electrostatic powder coating | |
| Structural fasteners | M8 hex socket cap screws for seat pivots, M6 screws for basket and backrest | |
| Seat pivot damper | Nylon bushing with silicone damping insert, anti-pinch silent return | |
| 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
| Flip-up seat mechanism | Gravity-driven automatic silent return with damping, no manual operation required, anti-pinch edge design | |
|---|---|---|
| Floor mounting system | Flanged pedestal base with concealed M10 expansion anchor bolts, decorative plastic screw caps | |
| Writing surface configuration | Continuous fixed rigid panel running full row length at seated elbow height, no moving parts | |
| Egress clearance when seats are flipped up | 300 mm clear aisle width between rows, unobstructed passage for users | |
| Modular row configuration | 2-seat standard units connectable to form extended rows of any length, aligned for tiered raked floors | |
| Table edge protection | Rounded 1.5mm PVC edge banding on all writing surfaces, impact resistant for high-traffic use | |
| Under-seat storage | Fixed wire mesh book basket under each seat, retains personal items during use | |
| 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
| Tiered university lecture halls | Fixed bolted installation for permanent high-capacity classroom layouts with continuous writing surfaces | |
|---|---|---|
| Multimedia training rooms | Stable integrated writing surfaces suitable for note-taking and device use during presentations | |
| K-12 school auditorium classrooms | Durable construction resists high daily student traffic, easy egress via flip-up seats | |
| Corporate training centers | Uniform ergonomic design supports extended seated sessions for professional development | |
| Government and institutional conference halls | Neutral wood-grain and silver finish complements formal public interior design schemes | |
| Examination halls | Rigid fixed writing surfaces provide stable work area for high-stakes testing environments | |
| 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 1729-1:2015 | Furniture for educational institutions, safety and strength requirements for seating | |
|---|---|---|
| EN 1729-2:2012 | Educational furniture, safety requirements for fixed attached writing surfaces | |
| EN 13722:2004 | Furniture, test methods for strength and durability of non-domestic seating |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden furniture, applicable to all wood panel components | |
|---|---|---|
| GB/T 3325-2017 | General technical requirements for metal furniture, applicable to steel/aluminum frame components | |
| GB 18580-2017 | Formaldehyde emission limits for wood-based panels, required for indoor educational furniture | |
| GB/T 10357.3-2013 | Furniture mechanical performance test for seating, applicable to static and fatigue load testing |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture, applicable to all wood panel components; 2. GB/T 3325-2017: General technical requirements for metal furniture, applicable to steel/aluminum frame components; 3. GB 18580-2017: Formaldehyde emission limits for wood-based panels, required for indoor educational furniture; 4. GB/T 10357.3-2013: Furniture mechanical performance test for seating, applicable to static and fatigue load testing; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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