| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall 2-seat unit dimensions | 1040 x 855 x 950 mm | |
|---|---|---|
| Seat center distance per position | 600 mm | |
| Seat height above finished floor | 450 mm | |
| Backrest height above seat surface | 460 mm | |
| Writing tablet height above finished floor | 750 mm | |
| Writing tablet usable surface size | 300 x 250 mm | |
| Writing tablet panel thickness | 25 mm | |
| Seat/back panel thickness | 16 mm | |
| Aluminum support leg thickness | 4 mm | |
| Aluminum support leg front-to-back base width | 335 mm | |
| Minimum recommended row spacing | 950 mm | |
| Armrest height above seat surface | 200 mm | |
| Floor anchor hole minimum spacing | 255 mm | |
| Under-table bag hook clearance | 120 mm | |
| Finished Seat Cushion Thickness | 90 mm | |
| Backrest Padding Thickness | 70 mm |
Net weight / load capacity / users / durability
| Unit net weight per 2-seat assembly | 42 kg | |
|---|---|---|
| Recommended static load per seat | 150 kg | |
| Tablet return mechanism cycle life | 100000 cycles | |
| Seat/back surface static load rating | 2000 N | |
| Writing tablet static load capacity | 50 kg | |
| Maximum recommended user weight per seat | 120 kg | |
| Noise level during tablet return | 30 dB | |
| Structural warranty period | 5 years | |
| Component finish warranty period | 2 years | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% |
Core acceptance fields · Panels / hardware / frame / upholstery
| Support frame and legs | One-piece die-cast aluminum with silver anti-oxidation powder coating | |
|---|---|---|
| Seat and back panels | 16mm multi-layer plywood with double-sided fire-resistant wood-grain laminate | |
| Writing tablet panel | 25mm high-density particleboard core with fire-resistant laminate top, 2mm PVC hot-melt edge banding | |
| Armrests | 12mm diameter bent steel tube with silver powder-coated finish, integrated into frame structure | |
| Tablet return mechanism | Die-cast aluminum pivot bracket with damped anti-collision buffer, rubber noise-dampening pads | |
| Floor mounting hardware | Concealed steel expansion anchor bolts with matching silver decorative caps | |
| Under-table bag hooks | 4mm diameter chrome-plated steel wire, fixed under front writing tablet | |
| Front row divider panels | 10mm multi-layer plywood with matching wood-grain laminate, mounted to aluminum support legs | |
| 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 |
Adjustment / rotation / tilt / mobility / storage features
| Writing tablet operation | Front-mounted rotating foldable tablet with slow damped auto-return to stowed position | |
|---|---|---|
| Floor mounting installation | Permanent fixed attachment to concrete or raised access floor via concealed expansion bolts | |
| Row modular configuration | Units connect end-to-end to form continuous custom-length rows for stepped or flat lecture halls | |
| Tablet anti-collision design | Integrated rubber buffer stops to prevent impact noise and panel damage during return | |
| Under-seat/tablet storage | Integrated steel hooks under each writing tablet for hanging bags, coats or personal items | |
| Ergonomic back support | Contoured split-panel backrest angled 12 degrees backward from vertical for upright seated posture | |
| Seat surface contour | Slightly waterfall-front curved seat pan tilted 2 degrees backward to reduce leg pressure | |
| Cable management provision | Optional under-table cable routing clips for classroom AV or power accessories | |
| 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 stepped lecture halls | Fixed forward-facing configuration with tablet supports long-duration note-taking and lectures | |
|---|---|---|
| Corporate training auditoriums | Durable metal-frame construction withstands high-frequency daily public use | |
| Academic conference venues | Uniform light wood finish creates a professional, consistent aesthetic for formal events | |
| Government hearing or meeting rooms | Fixed floor mounting prevents reconfiguration and ensures orderly permanent seating layout | |
| K-12 multi-purpose assembly halls | Integrated writing tablet eliminates loose desk furniture and simplifies room turnover | |
| Vocational training centers | Rigid panel surfaces are easy to clean and resist damage from stationery and classroom supplies | |
| 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 | Furniture - Strength and durability requirements for ranked fixed seating in public areas | |
|---|---|---|
| EN 13722:2004 | Furniture - Test methods for the assessment of shear, peel and bond strength of edges | |
| EN 1022:2018 | Domestic and contract seating - Determination of stability |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | General purpose office chairs - Strength and durability test benchmarks for static loads | |
|---|---|---|
| ANSI/BIFMA X6.1-2018 | Educational seating - Performance requirements for classroom and lecture hall seating | |
| ANSI/BIFMA e3-2019 | Furniture sustainability standard for material emission and VOC limits |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden furniture, applicable to plywood/particleboard panel components | |
|---|---|---|
| GB 18580-2017 | Formaldehyde emission limits for wood-based panels, minimum E1 grade required for indoor educational use | |
| GB/T 10357.3-2013 | Mechanical performance test methods for chair seating strength and durability | |
| GB 28481-2012 | Restriction of hazardous substances in furniture products for indoor public spaces | |
| GB/T 35607-2017 | Green product assessment for furniture, applicable for public institution procurement requirements |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture, applicable to plywood/particleboard panel components; 2. GB 18580-2017: Formaldehyde emission limits for wood-based panels, minimum E1 grade required for indoor educational use; 3. GB/T 10357.3-2013: Mechanical performance test methods for chair seating strength and durability; 4. GB 28481-2012: Restriction of hazardous substances in furniture products for indoor public spaces; 5. GB/T 35607-2017: Green product assessment for furniture, applicable for public institution procurement requirements; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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